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1862 changed files with 76163 additions and 280246 deletions

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@ -1,11 +0,0 @@
version: 2
updates:
- package-ecosystem: gomod
directory: "/"
schedule:
interval: daily
open-pull-requests-limit: 10
ignore:
- dependency-name: github.com/alecthomas/chroma
versions:
- 0.9.1

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@ -1,46 +0,0 @@
---
name: Go
on:
push:
branches: [master]
pull_request:
branches: [master]
jobs:
# TODO: is it possible to DRY out these jobs? Aside from `runs-on`, they are
# identical.
# See: https://github.com/actions/runner/issues/1182
build-linux:
runs-on: [ubuntu-latest]
steps:
- uses: actions/checkout@v2
- name: Set up Go
uses: actions/setup-go@v2
with:
go-version: 1.19
- name: Set up Revive (linter)
run: go get -u github.com/boyter/scc github.com/mgechev/revive
env:
GO111MODULE: "off"
- name: Build
run: make build
- name: Test
run: make test
build-osx:
runs-on: [macos-latest]
steps:
- uses: actions/checkout@v2
- name: Set up Go
uses: actions/setup-go@v2
with:
go-version: 1.19
- name: Set up Revive (linter)
run: go get -u github.com/boyter/scc github.com/mgechev/revive
env:
GO111MODULE: "off"
- name: Build
run: make build
- name: Test
run: make test

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@ -1,30 +0,0 @@
---
name: CodeQL
on:
push:
branches: [master]
pull_request:
branches: [master]
schedule:
- cron: '45 23 * * 0'
jobs:
analyze:
name: Analyze
runs-on: ubuntu-latest
strategy:
fail-fast: false
matrix:
language: [go]
steps:
- name: Checkout repository
uses: actions/checkout@v2
- name: Initialize CodeQL
uses: github/codeql-action/init@v1
with:
languages: ${{ matrix.language }}
- name: Autobuild
uses: github/codeql-action/autobuild@v1
- name: Perform CodeQL Analysis
uses: github/codeql-action/analyze@v1

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@ -1,4 +1,3 @@
---
name: homebrew
on:
@ -12,8 +11,7 @@ jobs:
steps:
- uses: mislav/bump-homebrew-formula-action@v1
with:
# A PR will be sent to github.com/Homebrew/homebrew-core to update
# this formula:
# A PR will be sent to github.com/Homebrew/homebrew-core to update this formula:
formula-name: cheat
env:
COMMITTER_TOKEN: ${{ secrets.COMMITTER_TOKEN }}

15
.travis.yml Normal file
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@ -0,0 +1,15 @@
language: go
go:
- 1.14.x
os:
- linux
- osx
env:
- GO111MODULE=on
install: true
script: make ci

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@ -19,8 +19,7 @@ tracker][issues] to discuss with the maintainer whether it would be considered
for merging.
`cheat` is mostly mature and feature-complete, but may still have some room for
new features. See [HACKING.md][hacking] for a quick-start guide to `cheat`
development.
new features.
#### Add documentation ####
Did you encounter features, bugs, edge-cases, use-cases, or environment
@ -36,13 +35,9 @@ Are you unable to do the above, but still want to contribute? You can help
`cheat` simply by telling others about it. Share it with friends and coworkers
that might benefit from using it.
#### Pull Requests ####
Please open all pull-requests against the `develop` branch.
[cheat]: https://github.com/cheat/cheat
[cheatsheets]: https://github.com/cheat/cheatsheets
[hacking]: HACKING.md
[issues]: https://github.com/cheat/cheat/issues
[pr]: https://help.github.com/en/github/collaborating-with-issues-and-pull-requests/creating-a-pull-request-from-a-fork
[wiki]: https://github.com/cheat/cheat/wiki

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@ -1,8 +0,0 @@
# NB: this image isn't used anywhere in the build pipeline. It exists to
# conveniently facilitate ad-hoc experimentation in a sandboxed environment
# during development.
FROM golang:1.15-alpine
RUN apk add git less make
WORKDIR /app

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@ -1,57 +0,0 @@
Hacking
=======
The following is a quickstart guide for developing `cheat`.
## 1. Install system dependencies
Before you begin, you must install a handful of system dependencies. The
following are required, and must be available on your `PATH`:
- `git`
- `go` (>= 1.17 is recommended)
- `make`
The following dependencies are optional:
- `docker`
- `pandoc` (necessary to generate a `man` page)
## 2. Install utility applications
Run `make setup` to install `scc` and `revive`, which are used by various
`make` targets.
## 3. Development workflow
After your environment has been configured, your development workflow will
resemble the following:
1. Make changes to the `cheat` source code.
2. Run `make test` to run unit-tests.
3. Fix compiler errors and failing tests as necessary.
4. Run `make`. A `cheat` executable will be written to the `dist` directory.
5. Use the new executable by running `dist/cheat <command>`.
6. Run `make install` to install `cheat` to your `PATH`.
7. Run `make build-release` to build cross-platform binaries in `dist`.
8. Run `make clean` to clean the `dist` directory when desired.
You may run `make help` to see a list of available `make` commands.
### Developing with docker
It may be useful to test your changes within a pristine environment. An
Alpine-based docker container has been provided for that purpose.
If you would like to build the docker container, run:
```sh
make docker-setup
```
To shell into the container, run:
```sh
make docker-sh
```
The `cheat` source code will be mounted at `/app` within the container.
If you would like to destroy this container, you may run:
```sh
make distclean
```
[go]: https://go.dev/

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@ -1,79 +0,0 @@
Installing
==========
`cheat` has no runtime dependencies. As such, installing it is generally
straightforward. There are a few methods available:
### Install manually
#### Unix-like
On Unix-like systems, you may simply paste the following snippet into your terminal:
```sh
cd /tmp \
&& wget https://github.com/cheat/cheat/releases/download/4.4.2/cheat-linux-amd64.gz \
&& gunzip cheat-linux-amd64.gz \
&& chmod +x cheat-linux-amd64 \
&& sudo mv cheat-linux-amd64 /usr/local/bin/cheat
```
You may need to need to change the version number (`4.4.2`) and the archive
(`cheat-linux-amd64.gz`) depending on your platform.
See the [releases page][releases] for a list of supported platforms.
#### Windows
TODO: community support is requested here. Please open a PR if you'd like to
contribute installation instructions for Windows.
### Install via `go install`
If you have `go` version `>=1.17` available on your `PATH`, you can install
`cheat` via `go install`:
```sh
go install github.com/cheat/cheat/cmd/cheat@latest
```
### Install via package manager
Several community-maintained packages are also available:
Package manager | Package(s)
---------------- | -----------
aur | [cheat][pkg-aur-cheat], [cheat-bin][pkg-aur-cheat-bin]
brew | [cheat][pkg-brew]
docker | [docker-cheat][pkg-docker]
nix | [nixos.cheat][pkg-nix]
snap | [cheat][pkg-snap]
<!--[pacman][] |-->
## Configuring
Three things must be done before you can use `cheat`:
1. A config file must be generated
2. [`cheatpaths`][cheatpaths] must be configured
3. [Community cheatsheets][community] must be downloaded
On first run, `cheat` will run an installer that will do all of the above
automatically. After the installer is complete, it is strongly advised that you
view the configuration file that was generated, as you may want to change some
of its default values (to enable colorization, change the paginator, etc).
### conf.yml ###
`cheat` is configured by a YAML file that will be auto-generated on first run.
By default, the config file is assumed to exist on an XDG-compliant
configuration path like `~/.config/cheat/conf.yml`. If you would like to store
it elsewhere, you may export a `CHEAT_CONFIG_PATH` environment variable that
specifies its path:
```sh
export CHEAT_CONFIG_PATH="~/.dotfiles/cheat/conf.yml"
```
[cheatpaths]: README.md#cheatpaths
[community]: https://github.com/cheat/cheatsheets/
[pkg-aur-cheat-bin]: https://aur.archlinux.org/packages/cheat-bin
[pkg-aur-cheat]: https://aur.archlinux.org/packages/cheat
[pkg-brew]: https://formulae.brew.sh/formula/cheat
[pkg-docker]: https://github.com/bannmann/docker-cheat
[pkg-nix]: https://search.nixos.org/packages?channel=unstable&show=cheat&from=0&size=50&sort=relevance&type=packages&query=cheat
[pkg-snap]: https://snapcraft.io/cheat
[releases]: https://github.com/cheat/cheat/releases

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@ -7,7 +7,6 @@ dist_dir := ./dist
CAT := cat
COLUMN := column
CTAGS := ctags
DOCKER := docker
GO := go
GREP := grep
GZIP := gzip --best
@ -21,8 +20,6 @@ SED := sed
SORT := sort
ZIP := zip -m
docker_image := cheat-devel:latest
# build flags
BUILD_FLAGS := -ldflags="-s -w" -mod vendor -trimpath
GOBIN :=
@ -31,36 +28,30 @@ TMPDIR := /tmp
# release binaries
releases := \
$(dist_dir)/cheat-darwin-amd64 \
$(dist_dir)/cheat-linux-386 \
$(dist_dir)/cheat-linux-amd64 \
$(dist_dir)/cheat-linux-arm5 \
$(dist_dir)/cheat-linux-arm6 \
$(dist_dir)/cheat-linux-arm64 \
$(dist_dir)/cheat-linux-arm7 \
$(dist_dir)/cheat-netbsd-amd64 \
$(dist_dir)/cheat-openbsd-amd64 \
$(dist_dir)/cheat-solaris-amd64 \
$(dist_dir)/cheat-windows-amd64.exe
## build: build an executable for your architecture
.PHONY: build
build: | clean $(dist_dir) generate fmt lint vet vendor man
build: $(dist_dir) clean vendor generate man
$(GO) build $(BUILD_FLAGS) -o $(dist_dir)/cheat $(cmd_dir)
## build-release: build release executables
.PHONY: build-release
build-release: $(releases)
## ci: build a "release" executable for the current architecture (used in ci)
.PHONY: ci
ci: | setup prepare build
# cheat-darwin-amd64
$(dist_dir)/cheat-darwin-amd64: prepare
GOARCH=amd64 GOOS=darwin \
$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@ && chmod -x $@.gz
# cheat-linux-386
$(dist_dir)/cheat-linux-386: prepare
GOARCH=386 GOOS=linux \
$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@ && chmod -x $@.gz
# cheat-linux-amd64
$(dist_dir)/cheat-linux-amd64: prepare
GOARCH=amd64 GOOS=linux \
@ -80,36 +71,11 @@ $(dist_dir)/cheat-linux-arm6: prepare
$(dist_dir)/cheat-linux-arm7: prepare
GOARCH=arm GOOS=linux GOARM=7 \
$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@ && chmod -x $@.gz
# cheat-linux-arm64
$(dist_dir)/cheat-linux-arm64: prepare
GOARCH=arm64 GOOS=linux \
$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@ && chmod -x $@.gz
# cheat-netbsd-amd64
$(dist_dir)/cheat-netbsd-amd64: prepare
GOARCH=amd64 GOOS=netbsd \
$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@ && chmod -x $@.gz
# cheat-openbsd-amd64
$(dist_dir)/cheat-openbsd-amd64: prepare
GOARCH=amd64 GOOS=openbsd \
$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@ && chmod -x $@.gz
# cheat-plan9-amd64
$(dist_dir)/cheat-plan9-amd64: prepare
GOARCH=amd64 GOOS=plan9 \
$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@ && chmod -x $@.gz
# cheat-solaris-amd64
$(dist_dir)/cheat-solaris-amd64: prepare
GOARCH=amd64 GOOS=solaris \
$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(GZIP) $@ && chmod -x $@.gz
# cheat-windows-amd64
$(dist_dir)/cheat-windows-amd64.exe: prepare
GOARCH=amd64 GOOS=windows \
$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(ZIP) $@.zip $@ -j
$(GO) build $(BUILD_FLAGS) -o $@ $(cmd_dir) && $(ZIP) $@.zip $@
# ./dist
$(dist_dir):
@ -126,14 +92,13 @@ install: build
## clean: remove compiled executables
.PHONY: clean
clean:
$(RM) -f $(dist_dir)/* $(cmd_dir)/str_config.go $(cmd_dir)/str_usage.go
clean: $(dist_dir)
$(RM) -f $(dist_dir)/*
## distclean: remove the tags file
.PHONY: distclean
distclean:
$(RM) -f tags
@$(DOCKER) image rm -f $(docker_image)
## setup: install revive (linter) and scc (sloc tool)
.PHONY: setup
@ -161,10 +126,6 @@ man:
vendor:
$(GO) mod vendor && $(GO) mod tidy && $(GO) mod verify
## vendor-update: update vendored dependencies
vendor-update:
$(GO) get -t -u ./... && $(GO) mod vendor && $(GO) mod tidy && $(GO) mod verify
## fmt: run go fmt
.PHONY: fmt
fmt:
@ -196,17 +157,7 @@ coverage:
check: | vendor fmt lint vet test
.PHONY: prepare
prepare: | clean $(dist_dir) generate vendor fmt lint vet test
## docker-setup: create a docker image for use during development
.PHONY: docker-setup
docker-setup:
$(DOCKER) build -t $(docker_image) -f Dockerfile .
## docker-sh: shell into the docker development container
.PHONY: docker-sh
docker-sh:
$(DOCKER) run -v $(shell pwd):/app -ti $(docker_image) /bin/ash
prepare: | $(dist_dir) clean generate vendor fmt lint vet test
## help: display this help text
.PHONY: help

180
README.md
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@ -1,9 +1,8 @@
![Workflow status](https://github.com/cheat/cheat/actions/workflows/build.yml/badge.svg)
cheat
=====
[![Build Status](https://travis-ci.com/cheat/cheat.svg?branch=master)](https://travis-ci.com/cheat/cheat)
`cheat` allows you to create and view interactive cheatsheets on the
command-line. It was designed to help remind \*nix system administrators of
options for commands that they use frequently, but not frequently enough to
@ -42,6 +41,99 @@ tar -xjvf '/path/to/foo.tgz'
tar -cjvf '/path/to/foo.tgz' '/path/to/foo/'
```
Installing
----------
`cheat` has no dependencies. To install it, download the executable from the
[releases][] page and place it on your `PATH`.
Configuring
-----------
### conf.yml ###
`cheat` is configured by a YAML file that will be auto-generated on first run.
Should you need to create a config file manually, you can do
so via:
```sh
mkdir -p ~/.config/cheat && cheat --init > ~/.config/cheat/conf.yml
```
By default, the config file is assumed to exist on an XDG-compliant
configuration path like `~/.config/cheat/conf.yml`. If you would like to store
it elsewhere, you may export a `CHEAT_CONFIG_PATH` environment variable that
specifies its path:
```sh
export CHEAT_CONFIG_PATH="~/.dotfiles/cheat/conf.yml"
```
Cheatsheets
-----------
Cheatsheets are plain-text files with no file extension, and are named
according to the command used to view them:
```sh
cheat tar # file is named "tar"
cheat foo/bar # file is named "bar", in a "foo" subdirectory
```
Cheatsheet text may optionally be preceeded by a YAML frontmatter header that
assigns tags and specifies syntax:
```
---
syntax: javascript
tags: [ array, map ]
---
// To map over an array:
const squares = [1, 2, 3, 4].map(x => x * x);
```
The `cheat` executable includes no cheatsheets, but [community-sourced
cheatsheets are available][cheatsheets]. You will be asked if you would like to
install the community-sourced cheatsheets the first time you run `cheat`.
Cheatpaths
----------
Cheatsheets are stored on "cheatpaths", which are directories that contain
cheetsheets. Cheatpaths are specified in the `conf.yml` file.
It can be useful to configure `cheat` against multiple cheatpaths. A common
pattern is to store cheatsheets from multiple repositories on individual
cheatpaths:
```yaml
# conf.yml:
# ...
cheatpaths:
- name: community # a name for the cheatpath
path: ~/documents/cheat/community # the path's location on the filesystem
tags: [ community ] # these tags will be applied to all sheets on the path
readonly: true # if true, `cheat` will not create new cheatsheets here
- name: personal
path: ~/documents/cheat/personal # this is a separate directory and repository than above
tags: [ personal ]
readonly: false # new sheets may be written here
# ...
```
The `readonly` option instructs `cheat` not to edit (or create) any cheatsheets
on the path. This is useful to prevent merge-conflicts from arising on upstream
cheatsheet repositories.
If a user attempts to edit a cheatsheet on a read-only cheatpath, `cheat` will
transparently copy that sheet to a writeable directory before opening it for
editing.
### Directory-scoped Cheatpaths ###
At times, it can be useful to closely associate cheatsheets with a directory on
your filesystem. `cheat` facilitates this by searching for a `.cheat` folder in
the current working directory. If found, the `.cheat` directory will
(temporarily) be added to the cheatpaths.
Usage
-----
To view a cheatsheet:
@ -102,77 +194,7 @@ cheat -p personal -t networking --regex -s '(?:[0-9]{1,3}\.){3}[0-9]{1,3}'
```
Installing
----------
For installation and configuration instructions, see [INSTALLING.md][].
Cheatsheets
-----------
Cheatsheets are plain-text files with no file extension, and are named
according to the command used to view them:
```sh
cheat tar # file is named "tar"
cheat foo/bar # file is named "bar", in a "foo" subdirectory
```
Cheatsheet text may optionally be preceeded by a YAML frontmatter header that
assigns tags and specifies syntax:
```
---
syntax: javascript
tags: [ array, map ]
---
// To map over an array:
const squares = [1, 2, 3, 4].map(x => x * x);
```
The `cheat` executable includes no cheatsheets, but [community-sourced
cheatsheets are available][cheatsheets]. You will be asked if you would like to
install the community-sourced cheatsheets the first time you run `cheat`.
Cheatpaths
----------
Cheatsheets are stored on "cheatpaths", which are directories that contain
cheatsheets. Cheatpaths are specified in the `conf.yml` file.
It can be useful to configure `cheat` against multiple cheatpaths. A common
pattern is to store cheatsheets from multiple repositories on individual
cheatpaths:
```yaml
# conf.yml:
# ...
cheatpaths:
- name: community # a name for the cheatpath
path: ~/documents/cheat/community # the path's location on the filesystem
tags: [ community ] # these tags will be applied to all sheets on the path
readonly: true # if true, `cheat` will not create new cheatsheets here
- name: personal
path: ~/documents/cheat/personal # this is a separate directory and repository than above
tags: [ personal ]
readonly: false # new sheets may be written here
# ...
```
The `readonly` option instructs `cheat` not to edit (or create) any cheatsheets
on the path. This is useful to prevent merge-conflicts from arising on upstream
cheatsheet repositories.
If a user attempts to edit a cheatsheet on a read-only cheatpath, `cheat` will
transparently copy that sheet to a writeable directory before opening it for
editing.
### Directory-scoped Cheatpaths ###
At times, it can be useful to closely associate cheatsheets with a directory on
your filesystem. `cheat` facilitates this by searching for a `.cheat` folder in
the current working directory. If found, the `.cheat` directory will
(temporarily) be added to the cheatpaths.
Autocompletion
Advanced Usage
--------------
Shell autocompletion is currently available for `bash`, `fish`, and `zsh`. Copy
the relevant [completion script][completions] into the appropriate directory on
@ -185,9 +207,7 @@ Additionally, `cheat` supports enhanced autocompletion via integration with
1. Ensure that `fzf` is available on your `$PATH`
2. Set an envvar: `export CHEAT_USE_FZF=true`
[INSTALLING.md]: INSTALLING.md
[Releases]: https://github.com/cheat/cheat/releases
[cheatsheets]: https://github.com/cheat/cheatsheets
[completions]: https://github.com/cheat/cheat/tree/master/scripts
[fzf]: https://github.com/junegunn/fzf
[go]: https://golang.org
[Releases]: https://github.com/cheat/cheat/releases
[cheatsheets]: https://github.com/cheat/cheatsheets
[completions]: https://github.com/cheat/cheat/tree/master/scripts
[fzf]: https://github.com/junegunn/fzf

View File

@ -1,4 +1,3 @@
//go:build ignore
// +build ignore
// This script embeds `docopt.txt and `conf.yml` into the binary during at
@ -6,11 +5,13 @@
package main
import (
"fmt"
"io/ioutil"
"log"
"os"
"path"
"path/filepath"
)
@ -51,10 +52,10 @@ func main() {
for _, file := range files {
// delete the outfile
os.Remove(filepath.Join(root, file.Out))
os.Remove(path.Join(root, file.Out))
// read the static template
bytes, err := ioutil.ReadFile(filepath.Join(root, file.In))
bytes, err := ioutil.ReadFile(path.Join(root, file.In))
if err != nil {
log.Fatal(err)
}
@ -63,7 +64,7 @@ func main() {
data := template(file.Method, string(bytes))
// write the file to the specified outpath
spath := filepath.Join(root, file.Out)
spath := path.Join(root, file.Out)
err = ioutil.WriteFile(spath, []byte(data), 0644)
if err != nil {
log.Fatal(err)

View File

@ -1,11 +0,0 @@
package main
import (
"fmt"
"github.com/cheat/cheat/internal/config"
)
func cmdConf(_ map[string]interface{}, conf config.Config) {
fmt.Println(conf.Path)
}

View File

@ -1,27 +1,28 @@
package main
import (
"bytes"
"fmt"
"os"
"text/tabwriter"
"github.com/cheat/cheat/internal/config"
"github.com/cheat/cheat/internal/display"
)
// cmdDirectories lists the configured cheatpaths.
func cmdDirectories(_ map[string]interface{}, conf config.Config) {
func cmdDirectories(opts map[string]interface{}, conf config.Config) {
// initialize a tabwriter to produce cleanly columnized output
var out bytes.Buffer
w := tabwriter.NewWriter(&out, 0, 0, 1, ' ', 0)
w := tabwriter.NewWriter(os.Stdout, 0, 0, 1, ' ', 0)
// generate sorted, columnized output
for _, path := range conf.Cheatpaths {
fmt.Fprintf(w, "%s:\t%s\n", path.Name, path.Path)
fmt.Fprintln(w, fmt.Sprintf(
"%s:\t%s",
path.Name,
path.Path,
))
}
// write columnized output to stdout
w.Flush()
display.Write(out.String(), conf)
}

View File

@ -4,7 +4,7 @@ import (
"fmt"
"os"
"os/exec"
"path/filepath"
"path"
"strings"
"github.com/cheat/cheat/internal/cheatpath"
@ -20,7 +20,7 @@ func cmdEdit(opts map[string]interface{}, conf config.Config) {
// load the cheatsheets
cheatsheets, err := sheets.Load(conf.Cheatpaths)
if err != nil {
fmt.Fprintf(os.Stderr, "failed to list cheatsheets: %v\n", err)
fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to list cheatsheets: %v", err))
os.Exit(1)
}
@ -58,10 +58,10 @@ func cmdEdit(opts map[string]interface{}, conf config.Config) {
}
// compute the new edit path
editpath = filepath.Join(writepath.Path, sheet.Title)
editpath = path.Join(writepath.Path, sheet.Title)
// create any necessary subdirectories
dirs := filepath.Dir(editpath)
dirs := path.Dir(editpath)
if dirs != "." {
if err := os.MkdirAll(dirs, 0755); err != nil {
fmt.Fprintf(os.Stderr, "failed to create directory: %s, %v\n", dirs, err)
@ -87,10 +87,10 @@ func cmdEdit(opts map[string]interface{}, conf config.Config) {
}
// compute the new edit path
editpath = filepath.Join(writepath.Path, cheatsheet)
editpath = path.Join(writepath.Path, cheatsheet)
// create any necessary subdirectories
dirs := filepath.Dir(editpath)
dirs := path.Dir(editpath)
if dirs != "." {
if err := os.MkdirAll(dirs, 0755); err != nil {
fmt.Fprintf(os.Stderr, "failed to create directory: %s, %v\n", dirs, err)

View File

@ -3,7 +3,7 @@ package main
import (
"fmt"
"os"
"path/filepath"
"path"
"runtime"
"strings"
@ -42,11 +42,11 @@ func cmdInit() {
// determine the appropriate paths for config data and (optional) community
// cheatsheets based on the user's platform
confpath := confpaths[0]
confdir := filepath.Dir(confpath)
confdir := path.Dir(confpath)
// create paths for community and personal cheatsheets
community := filepath.Join(confdir, "cheatsheets", "community")
personal := filepath.Join(confdir, "cheatsheets", "personal")
community := path.Join(confdir, "/cheatsheets/community")
personal := path.Join(confdir, "/cheatsheets/personal")
// template the above paths into the default configs
configs = strings.Replace(configs, "COMMUNITY_PATH", community, -1)

View File

@ -1,7 +1,6 @@
package main
import (
"bytes"
"fmt"
"os"
"regexp"
@ -10,7 +9,6 @@ import (
"text/tabwriter"
"github.com/cheat/cheat/internal/config"
"github.com/cheat/cheat/internal/display"
"github.com/cheat/cheat/internal/sheet"
"github.com/cheat/cheat/internal/sheets"
)
@ -21,11 +19,11 @@ func cmdList(opts map[string]interface{}, conf config.Config) {
// load the cheatsheets
cheatsheets, err := sheets.Load(conf.Cheatpaths)
if err != nil {
fmt.Fprintf(os.Stderr, "failed to list cheatsheets: %v\n", err)
fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to list cheatsheets: %v", err))
os.Exit(1)
}
// filter cheatsheets by tag if --tag was provided
// filter cheatcheats by tag if --tag was provided
if opts["--tag"] != nil {
cheatsheets = sheets.Filter(
cheatsheets,
@ -37,8 +35,8 @@ func cmdList(opts map[string]interface{}, conf config.Config) {
// sheets with local sheets), here we simply want to create a slice
// containing all sheets.
flattened := []sheet.Sheet{}
for _, pathsheets := range cheatsheets {
for _, s := range pathsheets {
for _, pathSheets := range cheatsheets {
for _, s := range pathSheets {
flattened = append(flattened, s)
}
}
@ -63,7 +61,10 @@ func cmdList(opts map[string]interface{}, conf config.Config) {
// compile the regex
reg, err := regexp.Compile(pattern)
if err != nil {
fmt.Fprintf(os.Stderr, "failed to compile regexp: %s, %v\n", pattern, err)
fmt.Fprintln(
os.Stderr,
fmt.Sprintf("failed to compile regexp: %s, %v", pattern, err),
)
os.Exit(1)
}
@ -78,24 +79,25 @@ func cmdList(opts map[string]interface{}, conf config.Config) {
flattened = filtered
}
// return exit code 2 if no cheatsheets are available
// exit early if no cheatsheets are available
if len(flattened) == 0 {
os.Exit(2)
os.Exit(0)
}
// initialize a tabwriter to produce cleanly columnized output
var out bytes.Buffer
w := tabwriter.NewWriter(&out, 0, 0, 1, ' ', 0)
// write a header row
fmt.Fprintln(w, "title:\tfile:\ttags:")
w := tabwriter.NewWriter(os.Stdout, 0, 0, 1, ' ', 0)
// generate sorted, columnized output
fmt.Fprintln(w, "title:\tfile:\ttags:")
for _, sheet := range flattened {
fmt.Fprintf(w, "%s\t%s\t%s\n", sheet.Title, sheet.Path, strings.Join(sheet.Tags, ","))
fmt.Fprintln(w, fmt.Sprintf(
"%s\t%s\t%s",
sheet.Title,
sheet.Path,
strings.Join(sheet.Tags, ","),
))
}
// write columnized output to stdout
w.Flush()
display.Write(out.String(), conf)
}

View File

@ -17,7 +17,7 @@ func cmdRemove(opts map[string]interface{}, conf config.Config) {
// load the cheatsheets
cheatsheets, err := sheets.Load(conf.Cheatpaths)
if err != nil {
fmt.Fprintf(os.Stderr, "failed to list cheatsheets: %v\n", err)
fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to list cheatsheets: %v", err))
os.Exit(1)
}
@ -37,19 +37,19 @@ func cmdRemove(opts map[string]interface{}, conf config.Config) {
// fail early if the requested cheatsheet does not exist
sheet, ok := consolidated[cheatsheet]
if !ok {
fmt.Fprintf(os.Stderr, "No cheatsheet found for '%s'.\n", cheatsheet)
os.Exit(2)
fmt.Fprintln(os.Stderr, fmt.Sprintf("no cheatsheet found for '%s'.\n", cheatsheet))
os.Exit(1)
}
// fail early if the sheet is read-only
if sheet.ReadOnly {
fmt.Fprintf(os.Stderr, "cheatsheet '%s' is read-only.\n", cheatsheet)
fmt.Fprintln(os.Stderr, fmt.Sprintf("cheatsheet '%s' is read-only.", cheatsheet))
os.Exit(1)
}
// otherwise, attempt to delete the sheet
if err := os.Remove(sheet.Path); err != nil {
fmt.Fprintf(os.Stderr, "failed to delete sheet: %s, %v\n", sheet.Title, err)
fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to delete sheet: %s, %v", sheet.Title, err))
os.Exit(1)
}
}

View File

@ -7,7 +7,7 @@ import (
"strings"
"github.com/cheat/cheat/internal/config"
"github.com/cheat/cheat/internal/display"
"github.com/cheat/cheat/internal/sheet"
"github.com/cheat/cheat/internal/sheets"
)
@ -19,7 +19,7 @@ func cmdSearch(opts map[string]interface{}, conf config.Config) {
// load the cheatsheets
cheatsheets, err := sheets.Load(conf.Cheatpaths)
if err != nil {
fmt.Fprintf(os.Stderr, "failed to list cheatsheets: %v\n", err)
fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to list cheatsheets: %v", err))
os.Exit(1)
}
@ -31,67 +31,68 @@ func cmdSearch(opts map[string]interface{}, conf config.Config) {
)
}
// iterate over each cheatpath
out := ""
for _, pathcheats := range cheatsheets {
// consolidate the cheatsheets found on all paths into a single map of
// `title` => `sheet` (ie, allow more local cheatsheets to override less
// local cheatsheets)
consolidated := sheets.Consolidate(cheatsheets)
// sort the cheatsheets alphabetically, and search for matches
for _, sheet := range sheets.Sort(pathcheats) {
// if <cheatsheet> was provided, search that single sheet only
if opts["<cheatsheet>"] != nil {
// if <cheatsheet> was provided, constrain the search only to
// matching cheatsheets
if opts["<cheatsheet>"] != nil && sheet.Title != opts["<cheatsheet>"] {
continue
}
cheatsheet := opts["<cheatsheet>"].(string)
// assume that we want to perform a case-insensitive search for <phrase>
pattern := "(?i)" + phrase
// assert that the cheatsheet exists
s, ok := consolidated[cheatsheet]
if !ok {
fmt.Printf("No cheatsheet found for '%s'.\n", cheatsheet)
os.Exit(0)
}
// unless --regex is provided, in which case we pass the regex unaltered
if opts["--regex"] == true {
pattern = phrase
}
// compile the regex
reg, err := regexp.Compile(pattern)
if err != nil {
fmt.Fprintf(os.Stderr, "failed to compile regexp: %s, %v\n", pattern, err)
os.Exit(1)
}
// `Search` will return text entries that match the search terms.
// We're using it here to overwrite the prior cheatsheet Text,
// filtering it to only what is relevant.
sheet.Text = sheet.Search(reg)
// if the sheet did not match the search, ignore it and move on
if sheet.Text == "" {
continue
}
// if colorization was requested, apply it here
if conf.Color(opts) {
sheet.Colorize(conf)
}
// display the cheatsheet body
out += fmt.Sprintf(
"%s %s\n%s\n",
// append the cheatsheet title
sheet.Title,
// append the cheatsheet path
display.Faint(fmt.Sprintf("(%s)", sheet.CheatPath), conf),
// indent each line of content
display.Indent(sheet.Text),
)
consolidated = map[string]sheet.Sheet{
cheatsheet: s,
}
}
// trim superfluous newlines
out = strings.TrimSpace(out)
// sort the cheatsheets alphabetically, and search for matches
for _, sheet := range sheets.Sort(consolidated) {
// display the output
// NB: resist the temptation to call `display.Write` multiple times in the
// loop above. That will not play nicely with the paginator.
display.Write(out, conf)
// assume that we want to perform a case-insensitive search for <phrase>
pattern := "(?i)" + phrase
// unless --regex is provided, in which case we pass the regex unaltered
if opts["--regex"] == true {
pattern = phrase
}
// compile the regex
reg, err := regexp.Compile(pattern)
if err != nil {
fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to compile regexp: %s, %v", pattern, err))
os.Exit(1)
}
// `Search` will return text entries that match the search terms. We're
// using it here to overwrite the prior cheatsheet Text, filtering it to
// only what is relevant
sheet.Text = sheet.Search(reg)
// if the sheet did not match the search, ignore it and move on
if sheet.Text == "" {
continue
}
// if colorization was requested, apply it here
if conf.Color(opts) {
sheet.Colorize(conf)
}
// output the cheatsheet title
fmt.Printf("%s:\n", sheet.Title)
// indent each line of content with two spaces
for _, line := range strings.Split(sheet.Text, "\n") {
fmt.Printf(" %s\n", line)
}
fmt.Println("")
}
}

View File

@ -5,26 +5,21 @@ import (
"os"
"github.com/cheat/cheat/internal/config"
"github.com/cheat/cheat/internal/display"
"github.com/cheat/cheat/internal/sheets"
)
// cmdTags lists all tags in use.
func cmdTags(_ map[string]interface{}, conf config.Config) {
func cmdTags(opts map[string]interface{}, conf config.Config) {
// load the cheatsheets
cheatsheets, err := sheets.Load(conf.Cheatpaths)
if err != nil {
fmt.Fprintf(os.Stderr, "failed to list cheatsheets: %v\n", err)
fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to list cheatsheets: %v", err))
os.Exit(1)
}
// assemble the output
out := ""
// write sheet tags to stdout
for _, tag := range sheets.Tags(cheatsheets) {
out += fmt.Sprintln(tag)
fmt.Println(tag)
}
// display the output
display.Write(out, conf)
}

View File

@ -6,7 +6,6 @@ import (
"strings"
"github.com/cheat/cheat/internal/config"
"github.com/cheat/cheat/internal/display"
"github.com/cheat/cheat/internal/sheets"
)
@ -18,7 +17,7 @@ func cmdView(opts map[string]interface{}, conf config.Config) {
// load the cheatsheets
cheatsheets, err := sheets.Load(conf.Cheatpaths)
if err != nil {
fmt.Fprintf(os.Stderr, "failed to list cheatsheets: %v\n", err)
fmt.Fprintln(os.Stderr, fmt.Sprintf("failed to list cheatsheets: %v", err))
os.Exit(1)
}
@ -30,46 +29,16 @@ func cmdView(opts map[string]interface{}, conf config.Config) {
)
}
// if --all was passed, display cheatsheets from all cheatpaths
if opts["--all"].(bool) {
// iterate over the cheatpaths
out := ""
for _, cheatpath := range cheatsheets {
// if the cheatpath contains the specified cheatsheet, display it
if sheet, ok := cheatpath[cheatsheet]; ok {
// identify the matching cheatsheet
out += fmt.Sprintf("%s %s\n",
sheet.Title,
display.Faint(fmt.Sprintf("(%s)", sheet.CheatPath), conf),
)
// apply colorization if requested
if conf.Color(opts) {
sheet.Colorize(conf)
}
// display the cheatsheet
out += display.Indent(sheet.Text) + "\n"
}
}
// display and exit
display.Write(strings.TrimSuffix(out, "\n"), conf)
os.Exit(0)
}
// otherwise, consolidate the cheatsheets found on all paths into a single
// map of `title` => `sheet` (ie, allow more local cheatsheets to override
// less local cheatsheets)
// consolidate the cheatsheets found on all paths into a single map of
// `title` => `sheet` (ie, allow more local cheatsheets to override less
// local cheatsheets)
consolidated := sheets.Consolidate(cheatsheets)
// fail early if the requested cheatsheet does not exist
sheet, ok := consolidated[cheatsheet]
if !ok {
fmt.Printf("No cheatsheet found for '%s'.\n", cheatsheet)
os.Exit(2)
os.Exit(0)
}
// apply colorization if requested
@ -78,5 +47,5 @@ func cmdView(opts map[string]interface{}, conf config.Config) {
}
// display the cheatsheet
display.Write(sheet.Text, conf)
fmt.Print(sheet.Text)
}

View File

@ -3,19 +3,17 @@ Usage:
Options:
--init Write a default config file to stdout
-a --all Search among all cheatpaths
-c --colorize Colorize output
-d --directories List cheatsheet directories
-e --edit=<cheatsheet> Edit <cheatsheet>
-l --list List cheatsheets
-p --path=<name> Return only sheets found on cheatpath <name>
-p --path=<name> Return only sheets found on path <name>
-r --regex Treat search <phrase> as a regex
-s --search=<phrase> Search cheatsheets for <phrase>
-t --tag=<tag> Return only sheets matching <tag>
-T --tags List all tags in use
-v --version Print the version number
--rm=<cheatsheet> Remove (delete) <cheatsheet>
--conf Display the config file path
Examples:
@ -54,6 +52,3 @@ Examples:
To remove (delete) the foo/bar cheatsheet:
cheat --rm foo/bar
To view the configuration file path:
cheat --conf

View File

@ -1,4 +1,3 @@
// Package main serves as the executable entrypoint.
package main
//go:generate go run ../../build/embed.go
@ -6,6 +5,7 @@ package main
import (
"fmt"
"os"
"path"
"runtime"
"strings"
@ -17,12 +17,12 @@ import (
"github.com/cheat/cheat/internal/installer"
)
const version = "4.4.2"
const version = "3.10.0"
func main() {
// initialize options
opts, err := docopt.ParseArgs(usage(), nil, version)
opts, err := docopt.Parse(usage(), nil, true, version, false)
if err != nil {
// panic here, because this should never happen
panic(fmt.Errorf("docopt failed to parse: %v", err))
@ -46,9 +46,6 @@ func main() {
envvars := map[string]string{}
for _, e := range os.Environ() {
pair := strings.SplitN(e, "=", 2)
if runtime.GOOS == "windows" {
pair[0] = strings.ToUpper(pair[0])
}
envvars[pair[0]] = pair[1]
}
@ -77,16 +74,62 @@ func main() {
os.Exit(0)
}
// choose a confpath
confpath = confpaths[0]
// read the config template
configs := configs()
// run the installer
if err := installer.Run(configs(), confpath); err != nil {
fmt.Fprintf(os.Stderr, "failed to run installer: %v\n", err)
// determine the appropriate paths for config data and (optional) community
// cheatsheets based on the user's platform
confpath = confpaths[0]
confdir := path.Dir(confpath)
// create paths for community and personal cheatsheets
community := path.Join(confdir, "/cheatsheets/community")
personal := path.Join(confdir, "/cheatsheets/personal")
// template the above paths into the default configs
configs = strings.Replace(configs, "COMMUNITY_PATH", community, -1)
configs = strings.Replace(configs, "PERSONAL_PATH", personal, -1)
// prompt the user to download the community cheatsheets
yes, err = installer.Prompt(
"Would you like to download the community cheatsheets? [Y/n]",
true,
)
if err != nil {
fmt.Fprintf(os.Stderr, "failed to create config: %v\n", err)
os.Exit(1)
}
// clone the community cheatsheets if so instructed
if yes {
// clone the community cheatsheets
if err := installer.Clone(community); err != nil {
fmt.Fprintf(os.Stderr, "failed to create config: %v\n", err)
os.Exit(1)
}
// also create a directory for personal cheatsheets
if err := os.MkdirAll(personal, os.ModePerm); err != nil {
fmt.Fprintf(
os.Stderr,
"failed to create config: failed to create directory: %s: %v\n",
personal,
err)
os.Exit(1)
}
}
// the config file does not exist, so we'll try to create one
if err = config.Init(confpath, configs); err != nil {
fmt.Fprintf(
os.Stderr,
"failed to create config file: %s: %v\n",
confpath,
err,
)
os.Exit(1)
}
// notify the user and exit
fmt.Printf("Created config file: %s\n", confpath)
fmt.Println("Please read this file for advanced configuration information.")
os.Exit(0)
@ -121,9 +164,6 @@ func main() {
var cmd func(map[string]interface{}, config.Config)
switch {
case opts["--conf"].(bool):
cmd = cmdConf
case opts["--directories"].(bool):
cmd = cmdDirectories
@ -145,9 +185,6 @@ func main() {
case opts["<cheatsheet>"] != nil:
cmd = cmdView
case opts["--tag"] != nil && opts["--tag"].(string) != "":
cmd = cmdList
default:
fmt.Println(usage())
os.Exit(0)

View File

@ -9,10 +9,10 @@ import (
func configs() string {
return strings.TrimSpace(`---
# The editor to use with 'cheat -e <sheet>'. Defaults to $EDITOR or $VISUAL.
editor: EDITOR_PATH
editor: vim
# Should 'cheat' always colorize output?
colorize: false
colorize: true
# Which 'chroma' colorscheme should be applied to the output?
# Options are available here:
@ -21,53 +21,37 @@ style: monokai
# Which 'chroma' "formatter" should be applied?
# One of: "terminal", "terminal256", "terminal16m"
formatter: terminal256
formatter: terminal16m
# Through which pager should output be piped?
# 'less -FRX' is recommended on Unix systems
# 'more' is recommended on Windows
pager: PAGER_PATH
# Cheatpaths are paths at which cheatsheets are available on your local
# filesystem.
# The paths at which cheatsheets are available. Tags associated with a cheatpath
# are automatically attached to all cheatsheets residing on that path.
#
# It is useful to sort cheatsheets into different cheatpaths for organizational
# purposes. For example, you might want one cheatpath for community
# cheatsheets, one for personal cheatsheets, one for cheatsheets pertaining to
# your day job, one for code snippets, etc.
# Whenever cheatsheets share the same title (like 'tar'), the most local
# cheatsheets (those which come later in this file) take precedent over the
# less local sheets. This allows you to create your own "overides" for
# "upstream" cheatsheets.
#
# Cheatpaths are scoped, such that more "local" cheatpaths take priority over
# more "global" cheatpaths. (The most global cheatpath is listed first in this
# file; the most local is listed last.) For example, if there is a 'tar'
# cheatsheet on both global and local paths, you'll be presented with the local
# one by default. ('cheat -p' can be used to view cheatsheets from alternative
# cheatpaths.)
#
# Cheatpaths can also be tagged as "read only". This instructs cheat not to
# automatically create cheatsheets on a read-only cheatpath. Instead, when you
# would like to edit a read-only cheatsheet using 'cheat -e', cheat will
# perform a copy-on-write of that cheatsheet from a read-only cheatpath to a
# writeable cheatpath.
#
# This is very useful when you would like to maintain, for example, a
# "pristine" repository of community cheatsheets on one cheatpath, and an
# editable personal reponsity of cheatsheets on another cheatpath.
#
# Cheatpaths can be also configured to automatically apply tags to cheatsheets
# on certain paths, which can be useful for querying purposes.
# Example: 'cheat -t work jenkins'.
#
# Community cheatsheets must be installed separately, though you may have
# downloaded them automatically when installing 'cheat'. If not, you may
# download them here:
#
# https://github.com/cheat/cheatsheets
# But what if you want to view the "upstream" cheatsheets instead of your own?
# Cheatsheets may be filtered via 'cheat -t <tag>' in combination with other
# commands. So, if you want to view the 'tar' cheatsheet that is tagged as
# 'community' rather than your own, you can use: cheat tar -t community
cheatpaths:
# Cheatpath properties mean the following:
# 'name': the name of the cheatpath (view with 'cheat -d', filter with 'cheat -p')
# 'path': the filesystem path of the cheatsheet directory (view with 'cheat -d')
# 'tags': tags that should be automatically applied to sheets on this path
# 'readonly': shall user-created ('cheat -e') cheatsheets be saved here?
# Paths that come earlier are considered to be the most "global", and will
# thus be overridden by more local cheatsheets. That being the case, you
# should probably list community cheatsheets first.
#
# Note that the paths and tags listed below are placeholders. You may freely
# change them to suit your needs.
#
# Community cheatsheets must be installed separately, though you may have
# downloaded them automatically when installing 'cheat'. If not, you may
# download them here:
#
# https://github.com/cheat/cheatsheets
#
# Once downloaded, ensure that 'path' below points to the location at which
# you downloaded the community cheatsheets.
- name: community
path: COMMUNITY_PATH
tags: [ community ]
@ -81,13 +65,13 @@ cheatpaths:
readonly: false
# While it requires no configuration here, it's also worth noting that
# cheat will automatically append directories named '.cheat' within the
# 'cheat' will automatically append directories named '.cheat' within the
# current working directory to the 'cheatpath'. This can be very useful if
# you'd like to closely associate cheatsheets with, for example, a directory
# containing source code.
#
# Such "directory-scoped" cheatsheets will be treated as the most "local"
# cheatsheets, and will override less "local" cheatsheets. Similarly,
# cheatsheets, and will override less "local" cheatsheets. Likewise,
# directory-scoped cheatsheets will always be editable ('readonly: false').
`)
}

View File

@ -12,19 +12,17 @@ func usage() string {
Options:
--init Write a default config file to stdout
-a --all Search among all cheatpaths
-c --colorize Colorize output
-d --directories List cheatsheet directories
-e --edit=<cheatsheet> Edit <cheatsheet>
-l --list List cheatsheets
-p --path=<name> Return only sheets found on cheatpath <name>
-p --path=<name> Return only sheets found on path <name>
-r --regex Treat search <phrase> as a regex
-s --search=<phrase> Search cheatsheets for <phrase>
-t --tag=<tag> Return only sheets matching <tag>
-T --tags List all tags in use
-v --version Print the version number
--rm=<cheatsheet> Remove (delete) <cheatsheet>
--conf Display the config file path
Examples:
@ -63,8 +61,5 @@ Examples:
To remove (delete) the foo/bar cheatsheet:
cheat --rm foo/bar
To view the configuration file path:
cheat --conf
`)
}

View File

@ -1,9 +1,9 @@
---
# The editor to use with 'cheat -e <sheet>'. Defaults to $EDITOR or $VISUAL.
editor: EDITOR_PATH
editor: vim
# Should 'cheat' always colorize output?
colorize: false
colorize: true
# Which 'chroma' colorscheme should be applied to the output?
# Options are available here:
@ -12,53 +12,37 @@ style: monokai
# Which 'chroma' "formatter" should be applied?
# One of: "terminal", "terminal256", "terminal16m"
formatter: terminal256
formatter: terminal16m
# Through which pager should output be piped?
# 'less -FRX' is recommended on Unix systems
# 'more' is recommended on Windows
pager: PAGER_PATH
# Cheatpaths are paths at which cheatsheets are available on your local
# filesystem.
# The paths at which cheatsheets are available. Tags associated with a cheatpath
# are automatically attached to all cheatsheets residing on that path.
#
# It is useful to sort cheatsheets into different cheatpaths for organizational
# purposes. For example, you might want one cheatpath for community
# cheatsheets, one for personal cheatsheets, one for cheatsheets pertaining to
# your day job, one for code snippets, etc.
# Whenever cheatsheets share the same title (like 'tar'), the most local
# cheatsheets (those which come later in this file) take precedent over the
# less local sheets. This allows you to create your own "overides" for
# "upstream" cheatsheets.
#
# Cheatpaths are scoped, such that more "local" cheatpaths take priority over
# more "global" cheatpaths. (The most global cheatpath is listed first in this
# file; the most local is listed last.) For example, if there is a 'tar'
# cheatsheet on both global and local paths, you'll be presented with the local
# one by default. ('cheat -p' can be used to view cheatsheets from alternative
# cheatpaths.)
#
# Cheatpaths can also be tagged as "read only". This instructs cheat not to
# automatically create cheatsheets on a read-only cheatpath. Instead, when you
# would like to edit a read-only cheatsheet using 'cheat -e', cheat will
# perform a copy-on-write of that cheatsheet from a read-only cheatpath to a
# writeable cheatpath.
#
# This is very useful when you would like to maintain, for example, a
# "pristine" repository of community cheatsheets on one cheatpath, and an
# editable personal reponsity of cheatsheets on another cheatpath.
#
# Cheatpaths can be also configured to automatically apply tags to cheatsheets
# on certain paths, which can be useful for querying purposes.
# Example: 'cheat -t work jenkins'.
#
# Community cheatsheets must be installed separately, though you may have
# downloaded them automatically when installing 'cheat'. If not, you may
# download them here:
#
# https://github.com/cheat/cheatsheets
# But what if you want to view the "upstream" cheatsheets instead of your own?
# Cheatsheets may be filtered via 'cheat -t <tag>' in combination with other
# commands. So, if you want to view the 'tar' cheatsheet that is tagged as
# 'community' rather than your own, you can use: cheat tar -t community
cheatpaths:
# Cheatpath properties mean the following:
# 'name': the name of the cheatpath (view with 'cheat -d', filter with 'cheat -p')
# 'path': the filesystem path of the cheatsheet directory (view with 'cheat -d')
# 'tags': tags that should be automatically applied to sheets on this path
# 'readonly': shall user-created ('cheat -e') cheatsheets be saved here?
# Paths that come earlier are considered to be the most "global", and will
# thus be overridden by more local cheatsheets. That being the case, you
# should probably list community cheatsheets first.
#
# Note that the paths and tags listed below are placeholders. You may freely
# change them to suit your needs.
#
# Community cheatsheets must be installed separately, though you may have
# downloaded them automatically when installing 'cheat'. If not, you may
# download them here:
#
# https://github.com/cheat/cheatsheets
#
# Once downloaded, ensure that 'path' below points to the location at which
# you downloaded the community cheatsheets.
- name: community
path: COMMUNITY_PATH
tags: [ community ]
@ -72,11 +56,11 @@ cheatpaths:
readonly: false
# While it requires no configuration here, it's also worth noting that
# cheat will automatically append directories named '.cheat' within the
# 'cheat' will automatically append directories named '.cheat' within the
# current working directory to the 'cheatpath'. This can be very useful if
# you'd like to closely associate cheatsheets with, for example, a directory
# containing source code.
#
# Such "directory-scoped" cheatsheets will be treated as the most "local"
# cheatsheets, and will override less "local" cheatsheets. Similarly,
# cheatsheets, and will override less "local" cheatsheets. Likewise,
# directory-scoped cheatsheets will always be editable ('readonly: false').

View File

@ -1,150 +1,182 @@
.\" Automatically generated by Pandoc 2.17.1.1
.\" Automatically generated by Pandoc 1.17.2
.\"
.\" Define V font for inline verbatim, using C font in formats
.\" that render this, and otherwise B font.
.ie "\f[CB]x\f[]"x" \{\
. ftr V B
. ftr VI BI
. ftr VB B
. ftr VBI BI
.\}
.el \{\
. ftr V CR
. ftr VI CI
. ftr VB CB
. ftr VBI CBI
.\}
.TH "CHEAT" "1" "" "" "General Commands Manual"
.hy
.SH NAME
.PP
\f[B]cheat\f[R] \[em] create and view command-line cheatsheets
\f[B]cheat\f[] \[em] create and view command\-line cheatsheets
.SH SYNOPSIS
.PP
\f[B]cheat\f[R] [options] [\f[I]CHEATSHEET\f[R]]
\f[B]cheat\f[] [options] [\f[I]CHEATSHEET\f[]]
.SH DESCRIPTION
.PP
\f[B]cheat\f[R] allows you to create and view interactive cheatsheets on
the command-line.
\f[B]cheat\f[] allows you to create and view interactive cheatsheets on
the command\-line.
It was designed to help remind *nix system administrators of options for
commands that they use frequently, but not frequently enough to
remember.
.SH OPTIONS
.TP
\[en]init
.B \-\-init
Print a config file to stdout.
.RS
.RE
.TP
-c, \[en]colorize
.B \-c, \-\-colorize
Colorize output.
.RS
.RE
.TP
-d, \[en]directories
.B \-d, \-\-directories
List cheatsheet directories.
.RS
.RE
.TP
-e, \[en]edit=\f[I]CHEATSHEET\f[R]
Open \f[I]CHEATSHEET\f[R] for editing.
.B \-e, \-\-edit=\f[I]CHEATSHEET\f[]
Open \f[I]CHEATSHEET\f[] for editing.
.RS
.RE
.TP
-l, \[en]list
.B \-l, \-\-list
List available cheatsheets.
.RS
.RE
.TP
-p, \[en]path=\f[I]PATH\f[R]
Filter only to sheets found on path \f[I]PATH\f[R].
.B \-p, \-\-path=\f[I]PATH\f[]
Filter only to sheets found on path \f[I]PATH\f[].
.RS
.RE
.TP
-r, \[en]regex
Treat search \f[I]PHRASE\f[R] as a regular expression.
.B \-r, \-\-regex
Treat search \f[I]PHRASE\f[] as a regular expression.
.RS
.RE
.TP
-s, \[en]search=\f[I]PHRASE\f[R]
Search cheatsheets for \f[I]PHRASE\f[R].
.B \-s, \-\-search=\f[I]PHRASE\f[]
Search cheatsheets for \f[I]PHRASE\f[].
.RS
.RE
.TP
-t, \[en]tag=\f[I]TAG\f[R]
Filter only to sheets tagged with \f[I]TAG\f[R].
.B \-t, \-\-tag=\f[I]TAG\f[]
Filter only to sheets tagged with \f[I]TAG\f[].
.RS
.RE
.TP
-T, \[en]tags
.B \-T, \-\-tags
List all tags in use.
.RS
.RE
.TP
-v, \[en]version
.B \-v, \-\-version
Print the version number.
.RS
.RE
.TP
\[en]rm=\f[I]CHEATSHEET\f[R]
Remove (deletes) \f[I]CHEATSHEET\f[R].
.B \-\-rm=\f[I]CHEATSHEET\f[]
Remove (deletes) \f[I]CHEATSHEET\f[].
.RS
.RE
.SH EXAMPLES
.TP
To view the foo cheatsheet:
cheat \f[I]foo\f[R]
.B To view the foo cheatsheet:
cheat \f[I]foo\f[]
.RS
.RE
.TP
To edit (or create) the foo cheatsheet:
cheat -e \f[I]foo\f[R]
.B To edit (or create) the foo cheatsheet:
cheat \-e \f[I]foo\f[]
.RS
.RE
.TP
To edit (or create) the foo/bar cheatsheet on the `work' cheatpath:
cheat -p \f[I]work\f[R] -e \f[I]foo/bar\f[R]
.B To edit (or create) the foo/bar cheatsheet on the \[aq]work\[aq] cheatpath:
cheat \-p \f[I]work\f[] \-e \f[I]foo/bar\f[]
.RS
.RE
.TP
To view all cheatsheet directories:
cheat -d
.B To view all cheatsheet directories:
cheat \-d
.RS
.RE
.TP
To list all available cheatsheets:
cheat -l
.B To list all available cheatsheets:
cheat \-l
.RS
.RE
.TP
To list all cheatsheets whose titles match `apt':
cheat -l \f[I]apt\f[R]
.B To list all cheatsheets whose titles match \[aq]apt\[aq]:
cheat \-l \f[I]apt\f[]
.RS
.RE
.TP
To list all tags in use:
cheat -T
.B To list all tags in use:
cheat \-T
.RS
.RE
.TP
To list available cheatsheets that are tagged as `personal':
cheat -l -t \f[I]personal\f[R]
.B To list available cheatsheets that are tagged as \[aq]personal\[aq]:
cheat \-l \-t \f[I]personal\f[]
.RS
.RE
.TP
To search for `ssh' among all cheatsheets, and colorize matches:
cheat -c -s \f[I]ssh\f[R]
.B To search for \[aq]ssh\[aq] among all cheatsheets, and colorize matches:
cheat \-c \-s \f[I]ssh\f[]
.RS
.RE
.TP
To search (by regex) for cheatsheets that contain an IP address:
cheat -c -r -s \f[I]`(?:[0-9]{1,3}.){3}[0-9]{1,3}'\f[R]
.B To search (by regex) for cheatsheets that contain an IP address:
cheat \-c \-r \-s \f[I]\[aq](?:[0\-9]{1,3}.){3}[0\-9]{1,3}\[aq]\f[]
.RS
.RE
.TP
To remove (delete) the foo/bar cheatsheet:
cheat \[en]rm \f[I]foo/bar\f[R]
.B To remove (delete) the foo/bar cheatsheet:
cheat \-\-rm \f[I]foo/bar\f[]
.RS
.RE
.SH FILES
.SS Configuration
.PP
\f[B]cheat\f[R] is configured via a YAML file that is conventionally
named \f[I]conf.yaml\f[R].
\f[B]cheat\f[R] will search for \f[I]conf.yaml\f[R] in varying
locations, depending upon your platform:
\f[B]cheat\f[] is configured via a YAML file that is conventionally
named \f[I]conf.yaml\f[].
\f[B]cheat\f[] will search for \f[I]conf.yaml\f[] in varying locations,
depending upon your platform:
.SS Linux, OSX, and other Unixes
.IP "1." 3
\f[B]CHEAT_CONFIG_PATH\f[R]
\f[B]CHEAT_CONFIG_PATH\f[]
.IP "2." 3
\f[B]XDG_CONFIG_HOME\f[R]/cheat/conf.yaml
\f[B]XDG_CONFIG_HOME\f[]/cheat/conf.yaml
.IP "3." 3
\f[B]$HOME\f[R]/.config/cheat/conf.yml
\f[B]$HOME\f[]/.config/cheat/conf.yml
.IP "4." 3
\f[B]$HOME\f[R]/.cheat/conf.yml
\f[B]$HOME\f[]/.cheat/conf.yml
.SS Windows
.IP "1." 3
\f[B]CHEAT_CONFIG_PATH\f[R]
\f[B]CHEAT_CONFIG_PATH\f[]
.IP "2." 3
\f[B]APPDATA\f[R]/cheat/conf.yml
\f[B]APPDATA\f[]/cheat/conf.yml
.IP "3." 3
\f[B]PROGRAMDATA\f[R]/cheat/conf.yml
\f[B]PROGRAMDATA\f[]/cheat/conf.yml
.PP
\f[B]cheat\f[R] will search in the order specified above.
The first \f[I]conf.yaml\f[R] encountered will be respected.
\f[B]cheat\f[] will search in the order specified above.
The first \f[I]conf.yaml\f[] encountered will be respected.
.PP
If \f[B]cheat\f[R] cannot locate a config file, it will ask if you\[cq]d
If \f[B]cheat\f[] cannot locate a config file, it will ask if you\[aq]d
like to generate one automatically.
Alternatively, you may also generate a config file manually by running
\f[B]cheat \[en]init\f[R] and saving its output to the appropriate
\f[B]cheat \-\-init\f[] and saving its output to the appropriate
location for your platform.
.SS Cheatpaths
.PP
\f[B]cheat\f[R] reads its cheatsheets from \[lq]cheatpaths\[rq], which
are the directories in which cheatsheets are stored.
Cheatpaths may be configured in \f[I]conf.yaml\f[R], and viewed via
\f[B]cheat -d\f[R].
\f[B]cheat\f[] reads its cheatsheets from "cheatpaths", which are the
directories in which cheatsheets are stored.
Cheatpaths may be configured in \f[I]conf.yaml\f[], and viewed via
\f[B]cheat \-d\f[].
.PP
For detailed instructions on how to configure cheatpaths, please refer
to the comments in conf.yml.
.SS Autocompletion
.PP
Autocompletion scripts for \f[B]bash\f[R], \f[B]zsh\f[R], and
\f[B]fish\f[R] are available for download:
Autocompletion scripts for \f[B]bash\f[], \f[B]zsh\f[], and
\f[B]fish\f[] are available for download:
.IP \[bu] 2
<https://github.com/cheat/cheat/blob/master/scripts/cheat.bash>
.IP \[bu] 2
@ -152,29 +184,25 @@ Autocompletion scripts for \f[B]bash\f[R], \f[B]zsh\f[R], and
.IP \[bu] 2
<https://github.com/cheat/cheat/blob/master/scripts/cheat.zsh>
.PP
The \f[B]bash\f[R] and \f[B]zsh\f[R] scripts provide optional
integration with \f[B]fzf\f[R], if the latter is available on your
\f[B]PATH\f[R].
The \f[B]bash\f[] and \f[B]zsh\f[] scripts provide optional integration
with \f[B]fzf\f[], if the latter is available on your \f[B]PATH\f[].
.PP
The installation process will vary per system and shell configuration,
and thus will not be discussed here.
.SH ENVIRONMENT
.TP
\f[B]CHEAT_CONFIG_PATH\f[R]
.B \f[B]CHEAT_CONFIG_PATH\f[]
The path at which the config file is available.
If \f[B]CHEAT_CONFIG_PATH\f[R] is set, all other config paths will be
If \f[B]CHEAT_CONFIG_PATH\f[] is set, all other config paths will be
ignored.
.RS
.RE
.TP
\f[B]CHEAT_USE_FZF\f[R]
.B \f[B]CHEAT_USE_FZF\f[]
If set, autocompletion scripts will attempt to integrate with
\f[B]fzf\f[R].
.SH RETURN VALUES
.IP "0." 3
Successful termination
.IP "1." 3
Application error
.IP "2." 3
Cheatsheet(s) not found
\f[B]fzf\f[].
.RS
.RE
.SH BUGS
.PP
See GitHub issues: <https://github.com/cheat/cheat/issues>
@ -183,4 +211,4 @@ See GitHub issues: <https://github.com/cheat/cheat/issues>
Christopher Allen Lane <chris@chris-allen-lane.com>
.SH SEE ALSO
.PP
\f[B]fzf(1)\f[R]
\f[B]fzf(1)\f[]

View File

@ -163,15 +163,6 @@ set, all other config paths will be ignored.
: If set, autocompletion scripts will attempt to integrate with **fzf**.
RETURN VALUES
=============
0. Successful termination
1. Application error
2. Cheatsheet(s) not found
BUGS
====

39
go.mod
View File

@ -1,38 +1,17 @@
module github.com/cheat/cheat
go 1.19
go 1.14
require (
github.com/alecthomas/chroma/v2 v2.12.0
github.com/alecthomas/chroma v0.7.3
github.com/davecgh/go-spew v1.1.1
github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815
github.com/go-git/go-git/v5 v5.11.0
github.com/mattn/go-isatty v0.0.20
github.com/kr/text v0.2.0 // indirect
github.com/mattn/go-isatty v0.0.12
github.com/mitchellh/go-homedir v1.1.0
gopkg.in/yaml.v3 v3.0.1
)
require (
dario.cat/mergo v1.0.0 // indirect
github.com/Microsoft/go-winio v0.6.1 // indirect
github.com/ProtonMail/go-crypto v0.0.0-20230923063757-afb1ddc0824c // indirect
github.com/cloudflare/circl v1.3.7 // indirect
github.com/cyphar/filepath-securejoin v0.2.4 // indirect
github.com/dlclark/regexp2 v1.10.0 // indirect
github.com/emirpasic/gods v1.18.1 // indirect
github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
github.com/go-git/go-billy/v5 v5.5.0 // indirect
github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
github.com/kevinburke/ssh_config v1.2.0 // indirect
github.com/pjbgf/sha1cd v0.3.0 // indirect
github.com/sergi/go-diff v1.3.1 // indirect
github.com/skeema/knownhosts v1.2.1 // indirect
github.com/xanzy/ssh-agent v0.3.3 // indirect
golang.org/x/crypto v0.17.0 // indirect
golang.org/x/mod v0.14.0 // indirect
golang.org/x/net v0.19.0 // indirect
golang.org/x/sys v0.15.0 // indirect
golang.org/x/tools v0.16.1 // indirect
gopkg.in/warnings.v0 v0.1.2 // indirect
github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
github.com/sergi/go-diff v1.1.0 // indirect
gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0
gopkg.in/yaml.v2 v2.2.8
)

167
go.sum
View File

@ -1,143 +1,64 @@
dario.cat/mergo v1.0.0 h1:AGCNq9Evsj31mOgNPcLyXc+4PNABt905YmuqPYYpBWk=
dario.cat/mergo v1.0.0/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
github.com/Microsoft/go-winio v0.5.2/go.mod h1:WpS1mjBmmwHBEWmogvA2mj8546UReBk4v8QkMxJ6pZY=
github.com/Microsoft/go-winio v0.6.1 h1:9/kr64B9VUZrLm5YYwbGtUJnMgqWVOdUAXu6Migciow=
github.com/Microsoft/go-winio v0.6.1/go.mod h1:LRdKpFKfdobln8UmuiYcKPot9D2v6svN5+sAH+4kjUM=
github.com/ProtonMail/go-crypto v0.0.0-20230923063757-afb1ddc0824c h1:kMFnB0vCcX7IL/m9Y5LO+KQYv+t1CQOiFe6+SV2J7bE=
github.com/ProtonMail/go-crypto v0.0.0-20230923063757-afb1ddc0824c/go.mod h1:EjAoLdwvbIOoOQr3ihjnSoLZRtE8azugULFRteWMNc0=
github.com/alecthomas/assert/v2 v2.2.1 h1:XivOgYcduV98QCahG8T5XTezV5bylXe+lBxLG2K2ink=
github.com/alecthomas/chroma/v2 v2.12.0 h1:Wh8qLEgMMsN7mgyG8/qIpegky2Hvzr4By6gEF7cmWgw=
github.com/alecthomas/chroma/v2 v2.12.0/go.mod h1:4TQu7gdfuPjSh76j78ietmqh9LiurGF0EpseFXdKMBw=
github.com/alecthomas/repr v0.2.0 h1:HAzS41CIzNW5syS8Mf9UwXhNH1J9aix/BvDRf1Ml2Yk=
github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be h1:9AeTilPcZAjCFIImctFaOjnTIavg87rW78vTPkQqLI8=
github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPdPJAN/hZIm0C4OItdklCFmMRWYpio=
github.com/bwesterb/go-ristretto v1.2.3/go.mod h1:fUIoIZaG73pV5biE2Blr2xEzDoMj7NFEuV9ekS419A0=
github.com/cloudflare/circl v1.3.3/go.mod h1:5XYMA4rFBvNIrhs50XuiBJ15vF2pZn4nnUKZrLbUZFA=
github.com/cloudflare/circl v1.3.7 h1:qlCDlTPz2n9fu58M0Nh1J/JzcFpfgkFHHX3O35r5vcU=
github.com/cloudflare/circl v1.3.7/go.mod h1:sRTcRWXGLrKw6yIGJ+l7amYJFfAXbZG0kBSc8r4zxgA=
github.com/cyphar/filepath-securejoin v0.2.4 h1:Ugdm7cg7i6ZK6x3xDF1oEu1nfkyfH53EtKeQYTC3kyg=
github.com/cyphar/filepath-securejoin v0.2.4/go.mod h1:aPGpWjXOXUn2NCNjFvBE6aRxGGx79pTxQpKOJNYHHl4=
github.com/alecthomas/assert v0.0.0-20170929043011-405dbfeb8e38 h1:smF2tmSOzy2Mm+0dGI2AIUHY+w0BUc+4tn40djz7+6U=
github.com/alecthomas/assert v0.0.0-20170929043011-405dbfeb8e38/go.mod h1:r7bzyVFMNntcxPZXK3/+KdruV1H5KSlyVY0gc+NgInI=
github.com/alecthomas/chroma v0.7.3 h1:NfdAERMy+esYQs8OXk0I868/qDxxCEo7FMz1WIqMAeI=
github.com/alecthomas/chroma v0.7.3/go.mod h1:sko8vR34/90zvl5QdcUdvzL3J8NKjAUx9va9jPuFNoM=
github.com/alecthomas/colour v0.0.0-20160524082231-60882d9e2721 h1:JHZL0hZKJ1VENNfmXvHbgYlbUOvpzYzvy2aZU5gXVeo=
github.com/alecthomas/colour v0.0.0-20160524082231-60882d9e2721/go.mod h1:QO9JBoKquHd+jz9nshCh40fOfO+JzsoXy8qTHF68zU0=
github.com/alecthomas/kong v0.2.4/go.mod h1:kQOmtJgV+Lb4aj+I2LEn40cbtawdWJ9Y8QLq+lElKxE=
github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897 h1:p9Sln00KOTlrYkxI1zYWl1QLnEqAqEARBEYa8FQnQcY=
github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897/go.mod h1:xTS7Pm1pD1mvyM075QCDSRqH6qRLXylzS24ZTpRiSzQ=
github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
github.com/danwakefield/fnmatch v0.0.0-20160403171240-cbb64ac3d964 h1:y5HC9v93H5EPKqaS1UYVg1uYah5Xf51mBfIoWehClUQ=
github.com/danwakefield/fnmatch v0.0.0-20160403171240-cbb64ac3d964/go.mod h1:Xd9hchkHSWYkEqJwUGisez3G1QY8Ryz0sdWrLPMGjLk=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dlclark/regexp2 v1.10.0 h1:+/GIL799phkJqYW+3YbOd8LCcbHzT0Pbo8zl70MHsq0=
github.com/dlclark/regexp2 v1.10.0/go.mod h1:DHkYz0B9wPfa6wondMfaivmHpzrQ3v9q8cnmRbL6yW8=
github.com/dlclark/regexp2 v1.2.0 h1:8sAhBGEM0dRWogWqWyQeIJnxjWO6oIjl8FKqREDsGfk=
github.com/dlclark/regexp2 v1.2.0/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815 h1:bWDMxwH3px2JBh6AyO7hdCn/PkvCZXii8TGj7sbtEbQ=
github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815/go.mod h1:WwZ+bS3ebgob9U8Nd0kOddGdZWjyMGR8Wziv+TBNwSE=
github.com/elazarl/goproxy v0.0.0-20230808193330-2592e75ae04a h1:mATvB/9r/3gvcejNsXKSkQ6lcIaNec2nyfOdlTBR2lU=
github.com/emirpasic/gods v1.18.1 h1:FXtiHYKDGKCW2KzwZKx0iC0PQmdlorYgdFG9jPXJ1Bc=
github.com/emirpasic/gods v1.18.1/go.mod h1:8tpGGwCnJ5H4r6BWwaV6OrWmMoPhUl5jm/FMNAnJvWQ=
github.com/gliderlabs/ssh v0.3.5 h1:OcaySEmAQJgyYcArR+gGGTHCyE7nvhEMTlYY+Dp8CpY=
github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 h1:+zs/tPmkDkHx3U66DAb0lQFJrpS6731Oaa12ikc+DiI=
github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376/go.mod h1:an3vInlBmSxCcxctByoQdvwPiA7DTK7jaaFDBTtu0ic=
github.com/go-git/go-billy/v5 v5.5.0 h1:yEY4yhzCDuMGSv83oGxiBotRzhwhNr8VZyphhiu+mTU=
github.com/go-git/go-billy/v5 v5.5.0/go.mod h1:hmexnoNsr2SJU1Ju67OaNz5ASJY3+sHgFRpCtpDCKow=
github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20231010084843-55a94097c399 h1:eMje31YglSBqCdIqdhKBW8lokaMrL3uTkpGYlE2OOT4=
github.com/go-git/go-git/v5 v5.11.0 h1:XIZc1p+8YzypNr34itUfSvYJcv+eYdTnTvOZ2vD3cA4=
github.com/go-git/go-git/v5 v5.11.0/go.mod h1:6GFcX2P3NM7FPBfpePbpLd21XxsgdAt+lKqXmCUiUCY=
github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da h1:oI5xCqsCo564l8iNU+DwB5epxmsaqB+rhGL0m5jtYqE=
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github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM=
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github.com/onsi/gomega v1.27.10 h1:naR28SdDFlqrG6kScpT8VWpu1xWY5nJRCF3XaYyBjhI=
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github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
github.com/skeema/knownhosts v1.2.1 h1:SHWdIUa82uGZz+F+47k8SY4QhhI291cXCpopT1lK2AQ=
github.com/skeema/knownhosts v1.2.1/go.mod h1:xYbVRSPxqBZFrdmDyMmsOs+uX1UZC3nTN3ThzgDxUwo=
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github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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github.com/xanzy/ssh-agent v0.3.3 h1:+/15pJfg/RsTxqYcX6fHqOXZwwMP+2VyYWJeWM2qQFM=
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github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
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golang.org/x/tools v0.16.1 h1:TLyB3WofjdOEepBHAU20JdNC1Zbg87elYofWYAY5oZA=
golang.org/x/tools v0.16.1/go.mod h1:kYVVN6I1mBNoB1OX+noeBjbRk4IUEPa7JJ+TJMEooJ0=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20200413165638-669c56c373c4 h1:opSr2sbRXk5X5/givKrrKj9HXxFpW2sdCiP8MJSKLQY=
golang.org/x/sys v0.0.0-20200413165638-669c56c373c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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gopkg.in/warnings.v0 v0.1.2 h1:wFXVbFY8DY5/xOe1ECiWdKCzZlxgshcYVNkBHstARME=
gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0 h1:POO/ycCATvegFmVuPpQzZFJ+pGZeX22Ufu6fibxDVjU=
gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0/go.mod h1:WDnlLJ4WF5VGsH/HVa3CI79GS0ol3YnhVnKP89i0kNg=
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gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

View File

@ -1,5 +1,3 @@
// Package cheatpath implements functions pertaining to cheatsheet file path
// management.
package cheatpath
// Cheatpath encapsulates cheatsheet path information

View File

@ -46,7 +46,7 @@ func TestFilterFailure(t *testing.T) {
}
// filter the paths
_, err := Filter(paths, "qux")
paths, err := Filter(paths, "qux")
if err == nil {
t.Errorf("failed to return an error on non-existent cheatpath")
}

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@ -11,10 +11,12 @@ func Writeable(cheatpaths []Cheatpath) (Cheatpath, error) {
// NB: we're going backwards because we assume that the most "local"
// cheatpath will be specified last in the configs
for i := len(cheatpaths) - 1; i >= 0; i-- {
// if the cheatpath is not read-only, it is writeable, and thus returned
if !cheatpaths[i].ReadOnly {
if cheatpaths[i].ReadOnly == false {
return cheatpaths[i], nil
}
}
// otherwise, return an error

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@ -1,22 +0,0 @@
package config
import (
"testing"
)
// TestColor asserts that colorization rules are properly respected
func TestColor(t *testing.T) {
// mock a config
conf := Config{}
opts := map[string]interface{}{"--colorize": false}
if conf.Color(opts) {
t.Errorf("failed to respect --colorize (false)")
}
opts = map[string]interface{}{"--colorize": true}
if !conf.Color(opts) {
t.Errorf("failed to respect --colorize (true)")
}
}

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@ -1,16 +1,15 @@
// Package config implements functions pertaining to configuration management.
package config
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
cp "github.com/cheat/cheat/internal/cheatpath"
"github.com/mitchellh/go-homedir"
"gopkg.in/yaml.v3"
"gopkg.in/yaml.v2"
)
// Config encapsulates configuration parameters
@ -20,15 +19,13 @@ type Config struct {
Cheatpaths []cp.Cheatpath `yaml:"cheatpaths"`
Style string `yaml:"style"`
Formatter string `yaml:"formatter"`
Pager string `yaml:"pager"`
Path string
}
// New returns a new Config struct
func New(_ map[string]interface{}, confPath string, resolve bool) (Config, error) {
func New(opts map[string]interface{}, confPath string, resolve bool) (Config, error) {
// read the config file
buf, err := os.ReadFile(confPath)
buf, err := ioutil.ReadFile(confPath)
if err != nil {
return Config{}, fmt.Errorf("could not read config file: %v", err)
}
@ -36,11 +33,8 @@ func New(_ map[string]interface{}, confPath string, resolve bool) (Config, error
// initialize a config object
conf := Config{}
// store the config path
conf.Path = confPath
// unmarshal the yaml
err = yaml.Unmarshal(buf, &conf)
err = yaml.UnmarshalStrict(buf, &conf)
if err != nil {
return Config{}, fmt.Errorf("could not unmarshal yaml: %v", err)
}
@ -96,11 +90,14 @@ func New(_ map[string]interface{}, confPath string, resolve bool) (Config, error
conf.Cheatpaths[i].Path = expanded
}
// if an editor was not provided in the configs, attempt to choose one
// that's appropriate for the environment
// if an editor was not provided in the configs, look to envvars
if conf.Editor == "" {
if conf.Editor, err = Editor(); err != nil {
return Config{}, err
if os.Getenv("VISUAL") != "" {
conf.Editor = os.Getenv("VISUAL")
} else if os.Getenv("EDITOR") != "" {
conf.Editor = os.Getenv("EDITOR")
} else {
return Config{}, fmt.Errorf("no editor set")
}
}
@ -111,11 +108,8 @@ func New(_ map[string]interface{}, confPath string, resolve bool) (Config, error
// if a chroma formatter was not provided, set a default
if conf.Formatter == "" {
conf.Formatter = "terminal"
conf.Formatter = "terminal16m"
}
// load the pager
conf.Pager = strings.TrimSpace(conf.Pager)
return conf, nil
}

View File

@ -39,17 +39,17 @@ func TestConfigSuccessful(t *testing.T) {
// assert that the cheatpaths are correct
want := []cheatpath.Cheatpath{
cheatpath.Cheatpath{
Path: filepath.Join(home, ".dotfiles", "cheat", "community"),
Path: filepath.Join(home, ".dotfiles/cheat/community"),
ReadOnly: true,
Tags: []string{"community"},
},
cheatpath.Cheatpath{
Path: filepath.Join(home, ".dotfiles", "cheat", "work"),
Path: filepath.Join(home, ".dotfiles/cheat/work"),
ReadOnly: false,
Tags: []string{"work"},
},
cheatpath.Cheatpath{
Path: filepath.Join(home, ".dotfiles", "cheat", "personal"),
Path: filepath.Join(home, ".dotfiles/cheat/personal"),
ReadOnly: false,
Tags: []string{"personal"},
},
@ -85,8 +85,8 @@ func TestEmptyEditor(t *testing.T) {
// initialize a config
conf, err := New(map[string]interface{}{}, mock.Path("conf/empty.yml"), false)
if err != nil {
t.Errorf("failed to initialize test: %v", err)
if err == nil {
t.Errorf("failed to return an error on empty editor")
}
// set editor, and assert that it is respected

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@ -1,41 +0,0 @@
package config
import (
"fmt"
"os"
"os/exec"
"runtime"
)
// Editor attempts to locate an editor that's appropriate for the environment.
func Editor() (string, error) {
// default to `notepad.exe` on Windows
if runtime.GOOS == "windows" {
return "notepad", nil
}
// look for `nano` and `vim` on the `PATH`
def, _ := exec.LookPath("editor") // default `editor` wrapper
nano, _ := exec.LookPath("nano")
vim, _ := exec.LookPath("vim")
// set editor priority
editors := []string{
os.Getenv("VISUAL"),
os.Getenv("EDITOR"),
def,
nano,
vim,
}
// return the first editor that was found per the priority above
for _, editor := range editors {
if editor != "" {
return editor, nil
}
}
// return an error if no path is found
return "", fmt.Errorf("no editor set")
}

View File

@ -2,6 +2,7 @@ package config
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
)
@ -15,7 +16,7 @@ func Init(confpath string, configs string) error {
}
// write the config file
if err := os.WriteFile(confpath, []byte(configs), 0644); err != nil {
if err := ioutil.WriteFile(confpath, []byte(configs), 0644); err != nil {
return fmt.Errorf("failed to create file: %v", err)
}

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@ -1,37 +0,0 @@
package config
import (
"os"
"testing"
)
// TestInit asserts that configs are properly initialized
func TestInit(t *testing.T) {
// initialize a temporary config file
confFile, err := os.CreateTemp("", "cheat-test")
if err != nil {
t.Errorf("failed to create temp file: %v", err)
}
// clean up the temp file
defer os.Remove(confFile.Name())
// initialize the config file
conf := "mock config data"
if err = Init(confFile.Name(), conf); err != nil {
t.Errorf("failed to init config file: %v", err)
}
// read back the config file contents
bytes, err := os.ReadFile(confFile.Name())
if err != nil {
t.Errorf("failed to read config file: %v", err)
}
// assert that the contents were written correctly
got := string(bytes)
if got != conf {
t.Errorf("failed to write configs: want: %s, got: %s", conf, got)
}
}

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@ -1,32 +0,0 @@
package config
import (
"os"
"os/exec"
"runtime"
)
// Pager attempts to locate a pager that's appropriate for the environment.
func Pager() string {
// default to `more` on Windows
if runtime.GOOS == "windows" {
return "more"
}
// if $PAGER is set, return the corresponding pager
if os.Getenv("PAGER") != "" {
return os.Getenv("PAGER")
}
// Otherwise, search for `pager`, `less`, and `more` on the `$PATH`. If
// none are found, return an empty pager.
for _, pager := range []string{"pager", "less", "more"} {
if path, err := exec.LookPath(pager); err != nil {
return path
}
}
// default to no pager
return ""
}

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@ -1,52 +0,0 @@
package config
import (
"os"
"testing"
)
// TestPathConfigNotExists asserts that `Path` identifies non-existent config
// files
func TestPathConfigNotExists(t *testing.T) {
// package (invalid) cheatpaths
paths := []string{"/cheat-test-conf-does-not-exist"}
// assert
if _, err := Path(paths); err == nil {
t.Errorf("failed to identify non-existent config file")
}
}
// TestPathConfigExists asserts that `Path` identifies existent config files
func TestPathConfigExists(t *testing.T) {
// initialize a temporary config file
confFile, err := os.CreateTemp("", "cheat-test")
if err != nil {
t.Errorf("failed to create temp file: %v", err)
}
// clean up the temp file
defer os.Remove(confFile.Name())
// package cheatpaths
paths := []string{
"/cheat-test-conf-does-not-exist",
confFile.Name(),
}
// assert
got, err := Path(paths)
if err != nil {
t.Errorf("failed to identify config file: %v", err)
}
if got != confFile.Name() {
t.Errorf(
"failed to return config path: want: %s, got: %s",
confFile.Name(),
got,
)
}
}

View File

@ -2,7 +2,7 @@ package config
import (
"fmt"
"path/filepath"
"path"
"github.com/mitchellh/go-homedir"
)
@ -28,30 +28,25 @@ func Paths(
}
switch sys {
// darwin/linux/unix
case "aix", "android", "darwin", "dragonfly", "freebsd", "illumos", "ios",
"linux", "netbsd", "openbsd", "plan9", "solaris":
case "darwin", "linux", "freebsd":
paths := []string{}
// don't include the `XDG_CONFIG_HOME` path if that envvar is not set
if xdgpath, ok := envvars["XDG_CONFIG_HOME"]; ok {
paths = append(paths, filepath.Join(xdgpath, "cheat", "conf.yml"))
paths = append(paths, path.Join(xdgpath, "/cheat/conf.yml"))
}
// if `XDG_CONFIG_HOME` is not set, search the user's home directory
paths = append(paths, []string{
filepath.Join(home, ".config", "cheat", "conf.yml"),
filepath.Join(home, ".cheat", "conf.yml"),
"/etc/cheat/conf.yml",
path.Join(home, ".config/cheat/conf.yml"),
path.Join(home, ".cheat/conf.yml"),
}...)
return paths, nil
// windows
case "windows":
return []string{
filepath.Join(envvars["APPDATA"], "cheat", "conf.yml"),
filepath.Join(envvars["PROGRAMDATA"], "cheat", "conf.yml"),
path.Join(envvars["APPDATA"], "/cheat/conf.yml"),
path.Join(envvars["PROGRAMDATA"], "/cheat/conf.yml"),
}, nil
default:
return []string{}, fmt.Errorf("unsupported os: %s", sys)

View File

@ -21,7 +21,6 @@ func TestValidatePathsNix(t *testing.T) {
// specify the platforms to test
oses := []string{
"android",
"darwin",
"freebsd",
"linux",
@ -40,7 +39,6 @@ func TestValidatePathsNix(t *testing.T) {
"/home/bar/cheat/conf.yml",
"/home/foo/.config/cheat/conf.yml",
"/home/foo/.cheat/conf.yml",
"/etc/cheat/conf.yml",
}
// assert that output matches expectations
@ -83,7 +81,6 @@ func TestValidatePathsNixNoXDG(t *testing.T) {
want := []string{
"/home/foo/.config/cheat/conf.yml",
"/home/foo/.cheat/conf.yml",
"/etc/cheat/conf.yml",
}
// assert that output matches expectations

View File

@ -1,21 +0,0 @@
// Package display implement functions pertaining to writing formatted
// cheatsheet content to stdout, or alternatively the system pager.
package display
import (
"fmt"
"github.com/cheat/cheat/internal/config"
)
// Faint returns a faintly-colored string that's used to de-prioritize text
// written to stdout
func Faint(str string, conf config.Config) string {
// make `str` faint only if colorization has been requested
if conf.Colorize {
return fmt.Sprintf("\033[2m%s\033[0m", str)
}
// otherwise, return the string unmodified
return str
}

View File

@ -1,27 +0,0 @@
package display
import (
"testing"
"github.com/cheat/cheat/internal/config"
)
// TestFaint asserts that Faint applies faint formatting
func TestFaint(t *testing.T) {
// case: apply colorization
conf := config.Config{Colorize: true}
want := "\033[2mfoo\033[0m"
got := Faint("foo", conf)
if want != got {
t.Errorf("failed to faint: want: %s, got: %s", want, got)
}
// case: do not apply colorization
conf.Colorize = false
want = "foo"
got = Faint("foo", conf)
if want != got {
t.Errorf("failed to faint: want: %s, got: %s", want, got)
}
}

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@ -1,21 +0,0 @@
package display
import (
"fmt"
"strings"
)
// Indent prepends each line of a string with a tab
func Indent(str string) string {
// trim superfluous whitespace
str = strings.TrimSpace(str)
// prepend each line with a tab character
out := ""
for _, line := range strings.Split(str, "\n") {
out += fmt.Sprintf("\t%s\n", line)
}
return out
}

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@ -1,12 +0,0 @@
package display
import "testing"
// TestIndent asserts that Indent prepends a tab to each line
func TestIndent(t *testing.T) {
got := Indent("foo\nbar\nbaz")
want := "\tfoo\n\tbar\n\tbaz\n"
if got != want {
t.Errorf("failed to indent: want: %s, got: %s", want, got)
}
}

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@ -1,36 +0,0 @@
package display
import (
"fmt"
"os"
"os/exec"
"strings"
"github.com/cheat/cheat/internal/config"
)
// Write writes output either directly to stdout, or through a pager,
// depending upon configuration.
func Write(out string, conf config.Config) {
// if no pager was configured, print the output to stdout and exit
if conf.Pager == "" {
fmt.Print(out)
os.Exit(0)
}
// otherwise, pipe output through the pager
parts := strings.Split(conf.Pager, " ")
pager := parts[0]
args := parts[1:]
// configure the pager
cmd := exec.Command(pager, args...)
cmd.Stdin = strings.NewReader(out)
cmd.Stdout = os.Stdout
// run the pager and handle errors
if err := cmd.Run(); err != nil {
fmt.Fprintf(os.Stderr, "failed to write to pager: %v\n", err)
os.Exit(1)
}
}

View File

@ -0,0 +1,44 @@
package frontmatter
import (
"fmt"
"strings"
"gopkg.in/yaml.v1"
)
// Frontmatter encapsulates cheatsheet frontmatter data
type Frontmatter struct {
Tags []string
Syntax string
}
// Parse parses cheatsheet frontmatter
func Parse(markdown string) (string, Frontmatter, error) {
// specify the frontmatter delimiter
delim := "---"
// initialize a frontmatter struct
var fm Frontmatter
// if the markdown does not contain frontmatter, pass it through unmodified
if !strings.HasPrefix(markdown, delim) {
return strings.TrimSpace(markdown), fm, nil
}
// otherwise, split the frontmatter and cheatsheet text
parts := strings.SplitN(markdown, delim, 3)
// return an error if the frontmatter parses into the wrong number of parts
if len(parts) != 3 {
return markdown, fm, fmt.Errorf("failed to delimit frontmatter")
}
// return an error if the YAML cannot be unmarshalled
if err := yaml.Unmarshal([]byte(parts[1]), &fm); err != nil {
return markdown, fm, fmt.Errorf("failed to unmarshal frontmatter: %v", err)
}
return strings.TrimSpace(parts[2]), fm, nil
}

View File

@ -0,0 +1,95 @@
package frontmatter
import (
"testing"
)
// TestHasFrontmatter asserts that markdown is properly parsed when it contains
// frontmatter
func TestHasFrontmatter(t *testing.T) {
// stub our cheatsheet content
markdown := `---
syntax: go
tags: [ test ]
---
To foo the bar: baz`
// parse the frontmatter
text, fm, err := Parse(markdown)
// assert expectations
if err != nil {
t.Errorf("failed to parse markdown: %v", err)
}
want := "To foo the bar: baz"
if text != want {
t.Errorf("failed to parse text: want: %s, got: %s", want, text)
}
want = "go"
if fm.Syntax != want {
t.Errorf("failed to parse syntax: want: %s, got: %s", want, fm.Syntax)
}
want = "test"
if fm.Tags[0] != want {
t.Errorf("failed to parse tags: want: %s, got: %s", want, fm.Tags[0])
}
if len(fm.Tags) != 1 {
t.Errorf("failed to parse tags: want: len 0, got: len %d", len(fm.Tags))
}
}
// TestHasFrontmatter asserts that markdown is properly parsed when it does not
// contain frontmatter
func TestHasNoFrontmatter(t *testing.T) {
// stub our cheatsheet content
markdown := "To foo the bar: baz"
// parse the frontmatter
text, fm, err := Parse(markdown)
// assert expectations
if err != nil {
t.Errorf("failed to parse markdown: %v", err)
}
if text != markdown {
t.Errorf("failed to parse text: want: %s, got: %s", markdown, text)
}
if fm.Syntax != "" {
t.Errorf("failed to parse syntax: want: '', got: %s", fm.Syntax)
}
if len(fm.Tags) != 0 {
t.Errorf("failed to parse tags: want: len 0, got: len %d", len(fm.Tags))
}
}
// TestHasInvalidFrontmatter asserts that markdown is properly parsed when it
// contains invalid frontmatter
func TestHasInvalidFrontmatter(t *testing.T) {
// stub our cheatsheet content (with invalid frontmatter)
markdown := `---
syntax: go
tags: [ test ]
To foo the bar: baz`
// parse the frontmatter
text, _, err := Parse(markdown)
// assert that an error was returned
if err == nil {
t.Error("failed to error on invalid frontmatter")
}
// assert that the "raw" markdown was returned
if text != markdown {
t.Errorf("failed to parse text: want: %s, got: %s", markdown, text)
}
}

View File

@ -0,0 +1,24 @@
package installer
import (
"fmt"
"os"
"os/exec"
)
const cloneURL = "https://github.com/cheat/cheatsheets.git"
// Clone clones the community cheatsheets
func Clone(path string) error {
// perform the clone in a shell
cmd := exec.Command("git", "clone", cloneURL, path)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
err := cmd.Run()
if err != nil {
return fmt.Errorf("failed to clone cheatsheets: %v", err)
}
return nil
}

View File

@ -1,5 +1,3 @@
// Package installer implements functions that provide a first-time
// installation wizard.
package installer
import (
@ -16,7 +14,7 @@ func Prompt(prompt string, def bool) (bool, error) {
reader := bufio.NewReader(os.Stdin)
// display the prompt
fmt.Printf("%s: ", prompt)
fmt.Print(fmt.Sprintf("%s: ", prompt))
// read the answer
ans, err := reader.ReadString('\n')
@ -25,7 +23,7 @@ func Prompt(prompt string, def bool) (bool, error) {
}
// normalize the answer
ans = strings.ToLower(strings.TrimSpace(ans))
ans = strings.ToLower(strings.TrimRight(ans, "\n"))
// return the appropriate response
switch ans {

View File

@ -1,66 +0,0 @@
package installer
import (
"fmt"
"os"
"path/filepath"
"strings"
"github.com/cheat/cheat/internal/config"
"github.com/cheat/cheat/internal/repo"
)
// Run runs the installer
func Run(configs string, confpath string) error {
// determine the appropriate paths for config data and (optional) community
// cheatsheets based on the user's platform
confdir := filepath.Dir(confpath)
// create paths for community and personal cheatsheets
community := filepath.Join(confdir, "cheatsheets", "community")
personal := filepath.Join(confdir, "cheatsheets", "personal")
// set default cheatpaths
configs = strings.Replace(configs, "COMMUNITY_PATH", community, -1)
configs = strings.Replace(configs, "PERSONAL_PATH", personal, -1)
// locate and set a default pager
configs = strings.Replace(configs, "PAGER_PATH", config.Pager(), -1)
// locate and set a default editor
if editor, err := config.Editor(); err == nil {
configs = strings.Replace(configs, "EDITOR_PATH", editor, -1)
}
// prompt the user to download the community cheatsheets
yes, err := Prompt(
"Would you like to download the community cheatsheets? [Y/n]",
true,
)
if err != nil {
return fmt.Errorf("failed to prompt: %v", err)
}
// clone the community cheatsheets if so instructed
if yes {
// clone the community cheatsheets
fmt.Printf("Cloning community cheatsheets to %s.\n", community)
if err := repo.Clone(community); err != nil {
return fmt.Errorf("failed to clone cheatsheets: %v", err)
}
// also create a directory for personal cheatsheets
fmt.Printf("Cloning personal cheatsheets to %s.\n", personal)
if err := os.MkdirAll(personal, os.ModePerm); err != nil {
return fmt.Errorf("failed to create directory: %v", err)
}
}
// the config file does not exist, so we'll try to create one
if err = config.Init(confpath, configs); err != nil {
return fmt.Errorf("failed to create config file: %v", err)
}
return nil
}

View File

@ -1,4 +1,3 @@
// Package mock implements mock functions used in unit-tests.
package mock
import (
@ -14,7 +13,7 @@ func Path(filename string) string {
// determine the path of this file during runtime
_, thisfile, _, _ := runtime.Caller(0)
// compute the mock path
// compute the config path
file, err := filepath.Abs(
path.Join(
filepath.Dir(thisfile),
@ -23,7 +22,7 @@ func Path(filename string) string {
),
)
if err != nil {
panic(fmt.Errorf("failed to resolve mock path: %v", err))
panic(fmt.Errorf("failed to resolve config path: %v", err))
}
return file

View File

@ -1,26 +0,0 @@
// Package repo implements functions pertaining to the management of git repos.
package repo
import (
"fmt"
"os"
"github.com/go-git/go-git/v5"
)
// Clone clones the repo available at `url`
func Clone(url string) error {
// clone the community cheatsheets
_, err := git.PlainClone(url, false, &git.CloneOptions{
URL: "https://github.com/cheat/cheatsheets.git",
Depth: 1,
Progress: os.Stdout,
})
if err != nil {
return fmt.Errorf("failed to clone cheatsheets: %v", err)
}
return nil
}

View File

@ -1,110 +0,0 @@
package repo
import (
"fmt"
"os"
"strings"
)
// GitDir returns `true` if we are iterating over a directory contained within
// a repositories `.git` directory.
func GitDir(path string) (bool, error) {
/*
A bit of context is called for here, because this functionality has
previously caused a number of tricky, subtle bugs.
Fundamentally, here we are simply trying to avoid walking over the
contents of the `.git` directory. Doing so potentially makes
hundreds/thousands of needless syscalls, and can noticeably harm
performance on machines with slow disks.
The earliest effort to solve this problem involved simply returning
`fs.SkipDir` when the cheatsheet file path began with `.`, signifying a
hidden directory. This, however, caused two problems:
1. The `.cheat` directory was ignored
2. Cheatsheets installed by `brew` (which were by default installed to
`~/.config/cheat`) were ignored
See: https://github.com/cheat/cheat/issues/690
To remedy this, the exclusion criteria were narrowed, and the search
for a literal `.` was replaced with a search for a literal `.git`.
This, however, broke user installations that stored cheatsheets in
`git` submodules, because such an installation would contain a `.git`
file that pointed to the upstream repository.
See: https://github.com/cheat/cheat/issues/694
The next attempt at solving this was to search for a `.git` literal
string in the cheatsheet file path. If a match was not found, we would
continue to walk the directory, as before.
If a match *was* found, we determined whether `.git` referred to a file
or directory, and would only stop walking the path in the latter case.
This, however, caused crashes if a cheatpath contained a `.gitignore`
file. (Presumably, a crash would likewise occur on the presence of
`.gitattributes`, `.gitmodules`, etc.)
See: https://github.com/cheat/cheat/issues/699
Accounting for all of the above (hopefully?), the current solution is
not to search for `.git`, but `.git/` (including the directory
separator), and then only ceasing to walk the directory on a match.
To summarize, this code must account for the following possibilities:
1. A cheatpath is not a repository
2. A cheatpath is a repository
3. A cheatpath is a repository, and contains a `.git*` file
4. A cheatpath is a submodule
5. A cheatpath is a hidden directory
Care must be taken to support the above on both Unix and Windows
systems, which have different directory separators and line-endings.
There is a lot of nuance to all of this, and it would be worthwhile to
do two things to stop writing bugs here:
1. Build integration tests around all of this
2. Discard string-matching solutions entirely, and use `go-git` instead
NB: A reasonable smoke-test for ensuring that skipping is being applied
correctly is to run the following command:
make && strace ./dist/cheat -l | wc -l
That check should be run twice: once normally, and once after
commenting out the "skip" check in `sheets.Load`.
The specific line counts don't matter; what matters is that the number
of syscalls should be significantly lower with the skip check enabled.
*/
// determine if the literal string `.git` appears within `path`
pos := strings.Index(path, fmt.Sprintf(".git%s", string(os.PathSeparator)))
// if it does not, we know for certain that we are not within a `.git`
// directory.
if pos == -1 {
return false, nil
}
// If `path` does contain the string `.git`, we need to determine if we're
// inside of a `.git` directory, or if `path` points to a cheatsheet that's
// stored within a `git` submodule.
//
// See: https://github.com/cheat/cheat/issues/694
// truncate `path` to the occurrence of `.git`
f, err := os.Stat(path[:pos+5])
if err != nil {
return false, fmt.Errorf("failed to stat path %s: %v", path, err)
}
// return true or false depending on whether the truncated path is a
// directory
return f.Mode().IsDir(), nil
}

View File

@ -1 +0,0 @@
package repo

View File

@ -5,7 +5,7 @@ import (
"github.com/cheat/cheat/internal/config"
"github.com/alecthomas/chroma/v2/quick"
"github.com/alecthomas/chroma/quick"
)
// Colorize applies syntax-highlighting to a cheatsheet's Text.

View File

@ -1,34 +0,0 @@
package sheet
import (
"testing"
"github.com/cheat/cheat/internal/config"
)
// TestColorize asserts that syntax-highlighting is correctly applied
func TestColorize(t *testing.T) {
// mock configs
conf := config.Config{
Formatter: "terminal16m",
Style: "solarized-dark",
}
// mock a sheet
s := Sheet{
Text: "echo 'foo'",
}
// colorize the sheet text
s.Colorize(conf)
// initialize expectations
want := "echo"
want += " 'foo'"
// assert
if s.Text != want {
t.Errorf("failed to colorize sheet: want: %s, got: %s", want, s.Text)
}
}

View File

@ -4,7 +4,7 @@ import (
"fmt"
"io"
"os"
"path/filepath"
"path"
)
// Copy copies a cheatsheet to a new location
@ -22,7 +22,7 @@ func (s *Sheet) Copy(dest string) error {
defer infile.Close()
// create any necessary subdirectories
dirs := filepath.Dir(dest)
dirs := path.Dir(dest)
if dirs != "." {
if err := os.MkdirAll(dirs, 0755); err != nil {
return fmt.Errorf("failed to create directory: %s, %v", dirs, err)

View File

@ -1,6 +1,7 @@
package sheet
import (
"io/ioutil"
"os"
"path"
"testing"
@ -12,7 +13,7 @@ func TestCopyFlat(t *testing.T) {
// mock a cheatsheet file
text := "this is the cheatsheet text"
src, err := os.CreateTemp("", "foo-src")
src, err := ioutil.TempFile("", "foo-src")
if err != nil {
t.Errorf("failed to mock cheatsheet: %v", err)
}
@ -24,7 +25,7 @@ func TestCopyFlat(t *testing.T) {
}
// mock a cheatsheet struct
sheet, err := New("foo", "community", src.Name(), []string{}, false)
sheet, err := New("foo", src.Name(), []string{}, false)
if err != nil {
t.Errorf("failed to init cheatsheet: %v", err)
}
@ -40,7 +41,7 @@ func TestCopyFlat(t *testing.T) {
}
// assert that the destination file contains the correct text
got, err := os.ReadFile(outpath)
got, err := ioutil.ReadFile(outpath)
if err != nil {
t.Errorf("failed to read destination file: %v", err)
}
@ -59,7 +60,7 @@ func TestCopyDeep(t *testing.T) {
// mock a cheatsheet file
text := "this is the cheatsheet text"
src, err := os.CreateTemp("", "foo-src")
src, err := ioutil.TempFile("", "foo-src")
if err != nil {
t.Errorf("failed to mock cheatsheet: %v", err)
}
@ -71,13 +72,7 @@ func TestCopyDeep(t *testing.T) {
}
// mock a cheatsheet struct
sheet, err := New(
"/cheat-tests/alpha/bravo/foo",
"community",
src.Name(),
[]string{},
false,
)
sheet, err := New("/cheat-tests/alpha/bravo/foo", src.Name(), []string{}, false)
if err != nil {
t.Errorf("failed to init cheatsheet: %v", err)
}
@ -93,7 +88,7 @@ func TestCopyDeep(t *testing.T) {
}
// assert that the destination file contains the correct text
got, err := os.ReadFile(outpath)
got, err := ioutil.ReadFile(outpath)
if err != nil {
t.Errorf("failed to read destination file: %v", err)
}

View File

@ -1,45 +0,0 @@
package sheet
import (
"fmt"
"runtime"
"strings"
"gopkg.in/yaml.v3"
)
// Parse parses cheatsheet frontmatter
func parse(markdown string) (frontmatter, string, error) {
// determine the appropriate line-break for the platform
linebreak := "\n"
if runtime.GOOS == "windows" {
linebreak = "\r\n"
}
// specify the frontmatter delimiter
delim := fmt.Sprintf("---%s", linebreak)
// initialize a frontmatter struct
var fm frontmatter
// if the markdown does not contain frontmatter, pass it through unmodified
if !strings.HasPrefix(markdown, delim) {
return fm, markdown, nil
}
// otherwise, split the frontmatter and cheatsheet text
parts := strings.SplitN(markdown, delim, 3)
// return an error if the frontmatter parses into the wrong number of parts
if len(parts) != 3 {
return fm, markdown, fmt.Errorf("failed to delimit frontmatter")
}
// return an error if the YAML cannot be unmarshalled
if err := yaml.Unmarshal([]byte(parts[1]), &fm); err != nil {
return fm, markdown, fmt.Errorf("failed to unmarshal frontmatter: %v", err)
}
return fm, parts[2], nil
}

View File

@ -1,95 +0,0 @@
package sheet
import (
"testing"
)
// TestHasFrontmatter asserts that markdown is properly parsed when it contains
// frontmatter
func TestHasFrontmatter(t *testing.T) {
// stub our cheatsheet content
markdown := `---
syntax: go
tags: [ test ]
---
To foo the bar: baz`
// parse the frontmatter
fm, text, err := parse(markdown)
// assert expectations
if err != nil {
t.Errorf("failed to parse markdown: %v", err)
}
want := "To foo the bar: baz"
if text != want {
t.Errorf("failed to parse text: want: %s, got: %s", want, text)
}
want = "go"
if fm.Syntax != want {
t.Errorf("failed to parse syntax: want: %s, got: %s", want, fm.Syntax)
}
want = "test"
if fm.Tags[0] != want {
t.Errorf("failed to parse tags: want: %s, got: %s", want, fm.Tags[0])
}
if len(fm.Tags) != 1 {
t.Errorf("failed to parse tags: want: len 0, got: len %d", len(fm.Tags))
}
}
// TestHasFrontmatter asserts that markdown is properly parsed when it does not
// contain frontmatter
func TestHasNoFrontmatter(t *testing.T) {
// stub our cheatsheet content
markdown := "To foo the bar: baz"
// parse the frontmatter
fm, text, err := parse(markdown)
// assert expectations
if err != nil {
t.Errorf("failed to parse markdown: %v", err)
}
if text != markdown {
t.Errorf("failed to parse text: want: %s, got: %s", markdown, text)
}
if fm.Syntax != "" {
t.Errorf("failed to parse syntax: want: '', got: %s", fm.Syntax)
}
if len(fm.Tags) != 0 {
t.Errorf("failed to parse tags: want: len 0, got: len %d", len(fm.Tags))
}
}
// TestHasInvalidFrontmatter asserts that markdown is properly parsed when it
// contains invalid frontmatter
func TestHasInvalidFrontmatter(t *testing.T) {
// stub our cheatsheet content (with invalid frontmatter)
markdown := `---
syntax: go
tags: [ test ]
To foo the bar: baz`
// parse the frontmatter
_, text, err := parse(markdown)
// assert that an error was returned
if err == nil {
t.Error("failed to error on invalid frontmatter")
}
// assert that the "raw" markdown was returned
if text != markdown {
t.Errorf("failed to parse text: want: %s, got: %s", markdown, text)
}
}

View File

@ -1,47 +1,39 @@
// Package sheet implements functions pertaining to parsing, searching, and
// displaying cheatsheets.
package sheet
import (
"fmt"
"os"
"io/ioutil"
"sort"
)
// Frontmatter encapsulates cheatsheet frontmatter data
type frontmatter struct {
Tags []string
Syntax string
}
"github.com/cheat/cheat/internal/frontmatter"
)
// Sheet encapsulates sheet information
type Sheet struct {
Title string
CheatPath string
Path string
Text string
Tags []string
Syntax string
ReadOnly bool
Title string
Path string
Text string
Tags []string
Syntax string
ReadOnly bool
}
// New initializes a new Sheet
func New(
title string,
cheatpath string,
path string,
tags []string,
readOnly bool,
) (Sheet, error) {
// read the cheatsheet file
markdown, err := os.ReadFile(path)
markdown, err := ioutil.ReadFile(path)
if err != nil {
return Sheet{}, fmt.Errorf("failed to read file: %s, %v", path, err)
}
// parse the raw cheatsheet text
fm, text, err := parse(string(markdown))
// parse the cheatsheet frontmatter
text, fm, err := frontmatter.Parse(string(markdown))
if err != nil {
return Sheet{}, fmt.Errorf("failed to parse front-matter: %v", err)
}
@ -54,12 +46,11 @@ func New(
// initialize and return a sheet
return Sheet{
Title: title,
CheatPath: cheatpath,
Path: path,
Text: text,
Tags: tags,
Syntax: fm.Syntax,
ReadOnly: readOnly,
Title: title,
Path: path,
Text: text + "\n",
Tags: tags,
Syntax: fm.Syntax,
ReadOnly: readOnly,
}, nil
}

View File

@ -13,7 +13,6 @@ func TestSheetSuccess(t *testing.T) {
// initialize a sheet
sheet, err := New(
"foo",
"community",
mock.Path("sheet/foo"),
[]string{"alpha", "bravo"},
false,
@ -62,7 +61,6 @@ func TestSheetFailure(t *testing.T) {
// initialize a sheet
_, err := New(
"foo",
"community",
mock.Path("/does-not-exist"),
[]string{"alpha", "bravo"},
false,
@ -71,20 +69,3 @@ func TestSheetFailure(t *testing.T) {
t.Errorf("failed to return an error on unreadable sheet")
}
}
// TestSheetFrontMatterFailure asserts that an error is returned if the sheet's
// frontmatter cannot be parsed.
func TestSheetFrontMatterFailure(t *testing.T) {
// initialize a sheet
_, err := New(
"foo",
"community",
mock.Path("sheet/bad-fm"),
[]string{"alpha", "bravo"},
false,
)
if err == nil {
t.Errorf("failed to return an error on malformed front-matter")
}
}

View File

@ -1,5 +1,3 @@
// Package sheets implements functions pertaining to loading, sorting,
// filtering, and tagging cheatsheets.
package sheets
import (

View File

@ -2,13 +2,11 @@ package sheets
import (
"fmt"
"io/fs"
"os"
"path/filepath"
"strings"
cp "github.com/cheat/cheat/internal/cheatpath"
"github.com/cheat/cheat/internal/repo"
"github.com/cheat/cheat/internal/sheet"
)
@ -50,25 +48,18 @@ func Load(cheatpaths []cp.Cheatpath) ([]map[string]sheet.Sheet, error) {
string(os.PathSeparator),
)
// Don't walk the `.git` directory. Doing so creates
// hundreds/thousands of needless syscalls and could
// potentially harm performance on machines with slow disks.
skip, err := repo.GitDir(path)
if err != nil {
return fmt.Errorf("failed to identify .git directory: %v", err)
}
if skip {
return fs.SkipDir
// ignore hidden files and directories. Otherwise, we'll likely load
// .git/* and .DS_Store.
//
// NB: this is still somewhat brittle in that it will miss files
// contained within hidden directories in the middle of a path, though
// that should not realistically occur.
if strings.HasPrefix(title, ".") || strings.HasPrefix(info.Name(), ".") {
return nil
}
// parse the cheatsheet file into a `sheet` struct
s, err := sheet.New(
title,
cheatpath.Name,
path,
cheatpath.Tags,
cheatpath.ReadOnly,
)
s, err := sheet.New(title, path, cheatpath.Tags, cheatpath.ReadOnly)
if err != nil {
return fmt.Errorf(
"failed to load sheet: %s, path: %s, err: %v",

View File

@ -1,62 +1,3 @@
package sheets
import (
"path"
"testing"
"github.com/cheat/cheat/internal/cheatpath"
"github.com/cheat/cheat/internal/mock"
)
// TestLoad asserts that sheets on valid cheatpaths can be loaded successfully
func TestLoad(t *testing.T) {
// mock cheatpaths
cheatpaths := []cheatpath.Cheatpath{
{
Name: "community",
Path: path.Join(mock.Path("cheatsheets"), "community"),
ReadOnly: true,
},
{
Name: "personal",
Path: path.Join(mock.Path("cheatsheets"), "personal"),
ReadOnly: false,
},
}
// load cheatsheets
sheets, err := Load(cheatpaths)
if err != nil {
t.Errorf("failed to load cheatsheets: %v", err)
}
// assert that the correct number of sheets loaded
// (sheet load details are tested in `sheet_test.go`)
want := 4
if len(sheets) != want {
t.Errorf(
"failed to load correct number of cheatsheets: want: %d, got: %d",
want,
len(sheets),
)
}
}
// TestLoadBadPath asserts that an error is returned if a cheatpath is invalid
func TestLoadBadPath(t *testing.T) {
// mock a bad cheatpath
cheatpaths := []cheatpath.Cheatpath{
{
Name: "badpath",
Path: "/cheat/test/path/does/not/exist",
ReadOnly: true,
},
}
// attempt to load the cheatpath
if _, err := Load(cheatpaths); err == nil {
t.Errorf("failed to reject invalid cheatpath")
}
}
// TODO

View File

@ -9,7 +9,7 @@ import (
"github.com/cheat/cheat/internal/sheet"
)
// TestTags asserts that cheatsheet tags are properly returned
// TestTags asserts that cheetsheet tags are properly returned
func TestTags(t *testing.T) {
// mock cheatsheets available on multiple cheatpaths

View File

@ -1,4 +0,0 @@
---
tags: [ community ]
---
This is the bar cheatsheet.

View File

@ -1,4 +0,0 @@
---
tags: [ community ]
---
This is the foo cheatsheet.

View File

@ -1,4 +0,0 @@
---
tags: [ personal ]
---
This is the bat cheatsheet.

View File

@ -1,4 +0,0 @@
---
tags: [ personal ]
---
This is the baz cheatsheet.

View File

@ -1,4 +0,0 @@
---
syntax: sh
This is malformed frontmatter.

View File

@ -40,7 +40,8 @@ _cheat() {
'(-t --tag)'{-t,--tag}'[Return only sheets matching <tag>]: :->taglist' \
'(-T --tags)'{-T,--tags}'[List all tags in use]: :->none' \
'(-v --version)'{-v,--version}'[Print the version number]: :->none' \
'(--rm)--rm[Remove (delete) <sheet>]: :->personal'
'(--rm)--rm[Remove (delete) <sheet>]: :->personal' \
'(-)*: :->full'
case $state in
(none)
@ -62,4 +63,4 @@ _cheat() {
esac
}
compdef _cheat cheat
_cheat

View File

@ -1,46 +0,0 @@
#!/bin/sh -e
pull() {
for d in `cheat -d | awk '{print $2}'`;
do
echo "Update $d"
cd "$d"
[ -d ".git" ] && git pull || :
done
echo
echo "Finished update"
}
push() {
for d in `cheat -d | grep -v "community" | awk '{print $2}'`;
do
cd "$d"
if [ -d ".git" ]
then
echo "Push modifications $d"
files=$(git ls-files -mo | tr '\n' ' ')
git add -A && git commit -m "Edited files: $files" && git push || :
else
echo "$(pwd) is not a git managed folder"
echo "First connect this to your personal git repository"
fi
done
echo
echo "Finished push operation"
}
if [ "$1" = "pull" ]; then
pull
elif [ "$1" = "push" ]; then
push
else
echo "Usage:
# pull changes
cheatsheets pull
# push changes
cheatsheets push"
fi

View File

@ -1,12 +0,0 @@
version = 1
test_patterns = [
"*_test.go"
]
[[analyzers]]
name = "go"
enabled = true
[analyzers.meta]
import_path = "dario.cat/mergo"

View File

@ -1,33 +0,0 @@
#### joe made this: http://goel.io/joe
#### go ####
# Binaries for programs and plugins
*.exe
*.dll
*.so
*.dylib
# Test binary, build with `go test -c`
*.test
# Output of the go coverage tool, specifically when used with LiteIDE
*.out
# Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736
.glide/
#### vim ####
# Swap
[._]*.s[a-v][a-z]
[._]*.sw[a-p]
[._]s[a-v][a-z]
[._]sw[a-p]
# Session
Session.vim
# Temporary
.netrwhist
*~
# Auto-generated tag files
tags

View File

@ -1,12 +0,0 @@
language: go
arch:
- amd64
- ppc64le
install:
- go get -t
- go get golang.org/x/tools/cmd/cover
- go get github.com/mattn/goveralls
script:
- go test -race -v ./...
after_script:
- $HOME/gopath/bin/goveralls -service=travis-ci -repotoken $COVERALLS_TOKEN

View File

@ -1,46 +0,0 @@
# Contributor Covenant Code of Conduct
## Our Pledge
In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.
## Our Standards
Examples of behavior that contributes to creating a positive environment include:
* Using welcoming and inclusive language
* Being respectful of differing viewpoints and experiences
* Gracefully accepting constructive criticism
* Focusing on what is best for the community
* Showing empathy towards other community members
Examples of unacceptable behavior by participants include:
* The use of sexualized language or imagery and unwelcome sexual attention or advances
* Trolling, insulting/derogatory comments, and personal or political attacks
* Public or private harassment
* Publishing others' private information, such as a physical or electronic address, without explicit permission
* Other conduct which could reasonably be considered inappropriate in a professional setting
## Our Responsibilities
Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
## Scope
This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community. Examples of representing a project or community include using an official project e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event. Representation of a project may be further defined and clarified by project maintainers.
## Enforcement
Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at i@dario.im. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership.
## Attribution
This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version]
[homepage]: http://contributor-covenant.org
[version]: http://contributor-covenant.org/version/1/4/

View File

@ -1,112 +0,0 @@
<!-- omit in toc -->
# Contributing to mergo
First off, thanks for taking the time to contribute! ❤️
All types of contributions are encouraged and valued. See the [Table of Contents](#table-of-contents) for different ways to help and details about how this project handles them. Please make sure to read the relevant section before making your contribution. It will make it a lot easier for us maintainers and smooth out the experience for all involved. The community looks forward to your contributions. 🎉
> And if you like the project, but just don't have time to contribute, that's fine. There are other easy ways to support the project and show your appreciation, which we would also be very happy about:
> - Star the project
> - Tweet about it
> - Refer this project in your project's readme
> - Mention the project at local meetups and tell your friends/colleagues
<!-- omit in toc -->
## Table of Contents
- [Code of Conduct](#code-of-conduct)
- [I Have a Question](#i-have-a-question)
- [I Want To Contribute](#i-want-to-contribute)
- [Reporting Bugs](#reporting-bugs)
- [Suggesting Enhancements](#suggesting-enhancements)
## Code of Conduct
This project and everyone participating in it is governed by the
[mergo Code of Conduct](https://github.com/imdario/mergoblob/master/CODE_OF_CONDUCT.md).
By participating, you are expected to uphold this code. Please report unacceptable behavior
to <>.
## I Have a Question
> If you want to ask a question, we assume that you have read the available [Documentation](https://pkg.go.dev/github.com/imdario/mergo).
Before you ask a question, it is best to search for existing [Issues](https://github.com/imdario/mergo/issues) that might help you. In case you have found a suitable issue and still need clarification, you can write your question in this issue. It is also advisable to search the internet for answers first.
If you then still feel the need to ask a question and need clarification, we recommend the following:
- Open an [Issue](https://github.com/imdario/mergo/issues/new).
- Provide as much context as you can about what you're running into.
- Provide project and platform versions (nodejs, npm, etc), depending on what seems relevant.
We will then take care of the issue as soon as possible.
## I Want To Contribute
> ### Legal Notice <!-- omit in toc -->
> When contributing to this project, you must agree that you have authored 100% of the content, that you have the necessary rights to the content and that the content you contribute may be provided under the project license.
### Reporting Bugs
<!-- omit in toc -->
#### Before Submitting a Bug Report
A good bug report shouldn't leave others needing to chase you up for more information. Therefore, we ask you to investigate carefully, collect information and describe the issue in detail in your report. Please complete the following steps in advance to help us fix any potential bug as fast as possible.
- Make sure that you are using the latest version.
- Determine if your bug is really a bug and not an error on your side e.g. using incompatible environment components/versions (Make sure that you have read the [documentation](). If you are looking for support, you might want to check [this section](#i-have-a-question)).
- To see if other users have experienced (and potentially already solved) the same issue you are having, check if there is not already a bug report existing for your bug or error in the [bug tracker](https://github.com/imdario/mergoissues?q=label%3Abug).
- Also make sure to search the internet (including Stack Overflow) to see if users outside of the GitHub community have discussed the issue.
- Collect information about the bug:
- Stack trace (Traceback)
- OS, Platform and Version (Windows, Linux, macOS, x86, ARM)
- Version of the interpreter, compiler, SDK, runtime environment, package manager, depending on what seems relevant.
- Possibly your input and the output
- Can you reliably reproduce the issue? And can you also reproduce it with older versions?
<!-- omit in toc -->
#### How Do I Submit a Good Bug Report?
> You must never report security related issues, vulnerabilities or bugs including sensitive information to the issue tracker, or elsewhere in public. Instead sensitive bugs must be sent by email to .
<!-- You may add a PGP key to allow the messages to be sent encrypted as well. -->
We use GitHub issues to track bugs and errors. If you run into an issue with the project:
- Open an [Issue](https://github.com/imdario/mergo/issues/new). (Since we can't be sure at this point whether it is a bug or not, we ask you not to talk about a bug yet and not to label the issue.)
- Explain the behavior you would expect and the actual behavior.
- Please provide as much context as possible and describe the *reproduction steps* that someone else can follow to recreate the issue on their own. This usually includes your code. For good bug reports you should isolate the problem and create a reduced test case.
- Provide the information you collected in the previous section.
Once it's filed:
- The project team will label the issue accordingly.
- A team member will try to reproduce the issue with your provided steps. If there are no reproduction steps or no obvious way to reproduce the issue, the team will ask you for those steps and mark the issue as `needs-repro`. Bugs with the `needs-repro` tag will not be addressed until they are reproduced.
- If the team is able to reproduce the issue, it will be marked `needs-fix`, as well as possibly other tags (such as `critical`), and the issue will be left to be implemented by someone.
### Suggesting Enhancements
This section guides you through submitting an enhancement suggestion for mergo, **including completely new features and minor improvements to existing functionality**. Following these guidelines will help maintainers and the community to understand your suggestion and find related suggestions.
<!-- omit in toc -->
#### Before Submitting an Enhancement
- Make sure that you are using the latest version.
- Read the [documentation]() carefully and find out if the functionality is already covered, maybe by an individual configuration.
- Perform a [search](https://github.com/imdario/mergo/issues) to see if the enhancement has already been suggested. If it has, add a comment to the existing issue instead of opening a new one.
- Find out whether your idea fits with the scope and aims of the project. It's up to you to make a strong case to convince the project's developers of the merits of this feature. Keep in mind that we want features that will be useful to the majority of our users and not just a small subset. If you're just targeting a minority of users, consider writing an add-on/plugin library.
<!-- omit in toc -->
#### How Do I Submit a Good Enhancement Suggestion?
Enhancement suggestions are tracked as [GitHub issues](https://github.com/imdario/mergo/issues).
- Use a **clear and descriptive title** for the issue to identify the suggestion.
- Provide a **step-by-step description of the suggested enhancement** in as many details as possible.
- **Describe the current behavior** and **explain which behavior you expected to see instead** and why. At this point you can also tell which alternatives do not work for you.
- You may want to **include screenshots and animated GIFs** which help you demonstrate the steps or point out the part which the suggestion is related to. You can use [this tool](https://www.cockos.com/licecap/) to record GIFs on macOS and Windows, and [this tool](https://github.com/colinkeenan/silentcast) or [this tool](https://github.com/GNOME/byzanz) on Linux. <!-- this should only be included if the project has a GUI -->
- **Explain why this enhancement would be useful** to most mergo users. You may also want to point out the other projects that solved it better and which could serve as inspiration.
<!-- omit in toc -->
## Attribution
This guide is based on the **contributing-gen**. [Make your own](https://github.com/bttger/contributing-gen)!

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@ -1,28 +0,0 @@
Copyright (c) 2013 Dario Castañé. All rights reserved.
Copyright (c) 2012 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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@ -1,248 +0,0 @@
# Mergo
[![GitHub release][5]][6]
[![GoCard][7]][8]
[![Test status][1]][2]
[![OpenSSF Scorecard][21]][22]
[![OpenSSF Best Practices][19]][20]
[![Coverage status][9]][10]
[![Sourcegraph][11]][12]
[![FOSSA status][13]][14]
[![GoDoc][3]][4]
[![Become my sponsor][15]][16]
[![Tidelift][17]][18]
[1]: https://github.com/imdario/mergo/workflows/tests/badge.svg?branch=master
[2]: https://github.com/imdario/mergo/actions/workflows/tests.yml
[3]: https://godoc.org/github.com/imdario/mergo?status.svg
[4]: https://godoc.org/github.com/imdario/mergo
[5]: https://img.shields.io/github/release/imdario/mergo.svg
[6]: https://github.com/imdario/mergo/releases
[7]: https://goreportcard.com/badge/imdario/mergo
[8]: https://goreportcard.com/report/github.com/imdario/mergo
[9]: https://coveralls.io/repos/github/imdario/mergo/badge.svg?branch=master
[10]: https://coveralls.io/github/imdario/mergo?branch=master
[11]: https://sourcegraph.com/github.com/imdario/mergo/-/badge.svg
[12]: https://sourcegraph.com/github.com/imdario/mergo?badge
[13]: https://app.fossa.io/api/projects/git%2Bgithub.com%2Fimdario%2Fmergo.svg?type=shield
[14]: https://app.fossa.io/projects/git%2Bgithub.com%2Fimdario%2Fmergo?ref=badge_shield
[15]: https://img.shields.io/github/sponsors/imdario
[16]: https://github.com/sponsors/imdario
[17]: https://tidelift.com/badges/package/go/github.com%2Fimdario%2Fmergo
[18]: https://tidelift.com/subscription/pkg/go-github.com-imdario-mergo
[19]: https://bestpractices.coreinfrastructure.org/projects/7177/badge
[20]: https://bestpractices.coreinfrastructure.org/projects/7177
[21]: https://api.securityscorecards.dev/projects/github.com/imdario/mergo/badge
[22]: https://api.securityscorecards.dev/projects/github.com/imdario/mergo
A helper to merge structs and maps in Golang. Useful for configuration default values, avoiding messy if-statements.
Mergo merges same-type structs and maps by setting default values in zero-value fields. Mergo won't merge unexported (private) fields. It will do recursively any exported one. It also won't merge structs inside maps (because they are not addressable using Go reflection).
Also a lovely [comune](http://en.wikipedia.org/wiki/Mergo) (municipality) in the Province of Ancona in the Italian region of Marche.
## Status
It is ready for production use. [It is used in several projects by Docker, Google, The Linux Foundation, VMWare, Shopify, Microsoft, etc](https://github.com/imdario/mergo#mergo-in-the-wild).
### Important notes
#### 1.0.0
In [1.0.0](//github.com/imdario/mergo/releases/tag/1.0.0) Mergo moves to a vanity URL `dario.cat/mergo`.
#### 0.3.9
Please keep in mind that a problematic PR broke [0.3.9](//github.com/imdario/mergo/releases/tag/0.3.9). I reverted it in [0.3.10](//github.com/imdario/mergo/releases/tag/0.3.10), and I consider it stable but not bug-free. Also, this version adds support for go modules.
Keep in mind that in [0.3.2](//github.com/imdario/mergo/releases/tag/0.3.2), Mergo changed `Merge()`and `Map()` signatures to support [transformers](#transformers). I added an optional/variadic argument so that it won't break the existing code.
If you were using Mergo before April 6th, 2015, please check your project works as intended after updating your local copy with ```go get -u dario.cat/mergo```. I apologize for any issue caused by its previous behavior and any future bug that Mergo could cause in existing projects after the change (release 0.2.0).
### Donations
If Mergo is useful to you, consider buying me a coffee, a beer, or making a monthly donation to allow me to keep building great free software. :heart_eyes:
<a href='https://ko-fi.com/B0B58839' target='_blank'><img height='36' style='border:0px;height:36px;' src='https://az743702.vo.msecnd.net/cdn/kofi1.png?v=0' border='0' alt='Buy Me a Coffee at ko-fi.com' /></a>
<a href="https://liberapay.com/dario/donate"><img alt="Donate using Liberapay" src="https://liberapay.com/assets/widgets/donate.svg"></a>
<a href='https://github.com/sponsors/imdario' target='_blank'><img alt="Become my sponsor" src="https://img.shields.io/github/sponsors/imdario?style=for-the-badge" /></a>
### Mergo in the wild
- [moby/moby](https://github.com/moby/moby)
- [kubernetes/kubernetes](https://github.com/kubernetes/kubernetes)
- [vmware/dispatch](https://github.com/vmware/dispatch)
- [Shopify/themekit](https://github.com/Shopify/themekit)
- [imdario/zas](https://github.com/imdario/zas)
- [matcornic/hermes](https://github.com/matcornic/hermes)
- [OpenBazaar/openbazaar-go](https://github.com/OpenBazaar/openbazaar-go)
- [kataras/iris](https://github.com/kataras/iris)
- [michaelsauter/crane](https://github.com/michaelsauter/crane)
- [go-task/task](https://github.com/go-task/task)
- [sensu/uchiwa](https://github.com/sensu/uchiwa)
- [ory/hydra](https://github.com/ory/hydra)
- [sisatech/vcli](https://github.com/sisatech/vcli)
- [dairycart/dairycart](https://github.com/dairycart/dairycart)
- [projectcalico/felix](https://github.com/projectcalico/felix)
- [resin-os/balena](https://github.com/resin-os/balena)
- [go-kivik/kivik](https://github.com/go-kivik/kivik)
- [Telefonica/govice](https://github.com/Telefonica/govice)
- [supergiant/supergiant](supergiant/supergiant)
- [SergeyTsalkov/brooce](https://github.com/SergeyTsalkov/brooce)
- [soniah/dnsmadeeasy](https://github.com/soniah/dnsmadeeasy)
- [ohsu-comp-bio/funnel](https://github.com/ohsu-comp-bio/funnel)
- [EagerIO/Stout](https://github.com/EagerIO/Stout)
- [lynndylanhurley/defsynth-api](https://github.com/lynndylanhurley/defsynth-api)
- [russross/canvasassignments](https://github.com/russross/canvasassignments)
- [rdegges/cryptly-api](https://github.com/rdegges/cryptly-api)
- [casualjim/exeggutor](https://github.com/casualjim/exeggutor)
- [divshot/gitling](https://github.com/divshot/gitling)
- [RWJMurphy/gorl](https://github.com/RWJMurphy/gorl)
- [andrerocker/deploy42](https://github.com/andrerocker/deploy42)
- [elwinar/rambler](https://github.com/elwinar/rambler)
- [tmaiaroto/gopartman](https://github.com/tmaiaroto/gopartman)
- [jfbus/impressionist](https://github.com/jfbus/impressionist)
- [Jmeyering/zealot](https://github.com/Jmeyering/zealot)
- [godep-migrator/rigger-host](https://github.com/godep-migrator/rigger-host)
- [Dronevery/MultiwaySwitch-Go](https://github.com/Dronevery/MultiwaySwitch-Go)
- [thoas/picfit](https://github.com/thoas/picfit)
- [mantasmatelis/whooplist-server](https://github.com/mantasmatelis/whooplist-server)
- [jnuthong/item_search](https://github.com/jnuthong/item_search)
- [bukalapak/snowboard](https://github.com/bukalapak/snowboard)
- [containerssh/containerssh](https://github.com/containerssh/containerssh)
- [goreleaser/goreleaser](https://github.com/goreleaser/goreleaser)
- [tjpnz/structbot](https://github.com/tjpnz/structbot)
## Install
go get dario.cat/mergo
// use in your .go code
import (
"dario.cat/mergo"
)
## Usage
You can only merge same-type structs with exported fields initialized as zero value of their type and same-types maps. Mergo won't merge unexported (private) fields but will do recursively any exported one. It won't merge empty structs value as [they are zero values](https://golang.org/ref/spec#The_zero_value) too. Also, maps will be merged recursively except for structs inside maps (because they are not addressable using Go reflection).
```go
if err := mergo.Merge(&dst, src); err != nil {
// ...
}
```
Also, you can merge overwriting values using the transformer `WithOverride`.
```go
if err := mergo.Merge(&dst, src, mergo.WithOverride); err != nil {
// ...
}
```
Additionally, you can map a `map[string]interface{}` to a struct (and otherwise, from struct to map), following the same restrictions as in `Merge()`. Keys are capitalized to find each corresponding exported field.
```go
if err := mergo.Map(&dst, srcMap); err != nil {
// ...
}
```
Warning: if you map a struct to map, it won't do it recursively. Don't expect Mergo to map struct members of your struct as `map[string]interface{}`. They will be just assigned as values.
Here is a nice example:
```go
package main
import (
"fmt"
"dario.cat/mergo"
)
type Foo struct {
A string
B int64
}
func main() {
src := Foo{
A: "one",
B: 2,
}
dest := Foo{
A: "two",
}
mergo.Merge(&dest, src)
fmt.Println(dest)
// Will print
// {two 2}
}
```
Note: if test are failing due missing package, please execute:
go get gopkg.in/yaml.v3
### Transformers
Transformers allow to merge specific types differently than in the default behavior. In other words, now you can customize how some types are merged. For example, `time.Time` is a struct; it doesn't have zero value but IsZero can return true because it has fields with zero value. How can we merge a non-zero `time.Time`?
```go
package main
import (
"fmt"
"dario.cat/mergo"
"reflect"
"time"
)
type timeTransformer struct {
}
func (t timeTransformer) Transformer(typ reflect.Type) func(dst, src reflect.Value) error {
if typ == reflect.TypeOf(time.Time{}) {
return func(dst, src reflect.Value) error {
if dst.CanSet() {
isZero := dst.MethodByName("IsZero")
result := isZero.Call([]reflect.Value{})
if result[0].Bool() {
dst.Set(src)
}
}
return nil
}
}
return nil
}
type Snapshot struct {
Time time.Time
// ...
}
func main() {
src := Snapshot{time.Now()}
dest := Snapshot{}
mergo.Merge(&dest, src, mergo.WithTransformers(timeTransformer{}))
fmt.Println(dest)
// Will print
// { 2018-01-12 01:15:00 +0000 UTC m=+0.000000001 }
}
```
## Contact me
If I can help you, you have an idea or you are using Mergo in your projects, don't hesitate to drop me a line (or a pull request): [@im_dario](https://twitter.com/im_dario)
## About
Written by [Dario Castañé](http://dario.im).
## License
[BSD 3-Clause](http://opensource.org/licenses/BSD-3-Clause) license, as [Go language](http://golang.org/LICENSE).
[![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fimdario%2Fmergo.svg?type=large)](https://app.fossa.io/projects/git%2Bgithub.com%2Fimdario%2Fmergo?ref=badge_large)

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@ -1,14 +0,0 @@
# Security Policy
## Supported Versions
| Version | Supported |
| ------- | ------------------ |
| 0.3.x | :white_check_mark: |
| < 0.3 | :x: |
## Security contact information
To report a security vulnerability, please use the
[Tidelift security contact](https://tidelift.com/security).
Tidelift will coordinate the fix and disclosure.

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@ -1,148 +0,0 @@
// Copyright 2013 Dario Castañé. All rights reserved.
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
/*
A helper to merge structs and maps in Golang. Useful for configuration default values, avoiding messy if-statements.
Mergo merges same-type structs and maps by setting default values in zero-value fields. Mergo won't merge unexported (private) fields. It will do recursively any exported one. It also won't merge structs inside maps (because they are not addressable using Go reflection).
# Status
It is ready for production use. It is used in several projects by Docker, Google, The Linux Foundation, VMWare, Shopify, etc.
# Important notes
1.0.0
In 1.0.0 Mergo moves to a vanity URL `dario.cat/mergo`.
0.3.9
Please keep in mind that a problematic PR broke 0.3.9. We reverted it in 0.3.10. We consider 0.3.10 as stable but not bug-free. . Also, this version adds suppot for go modules.
Keep in mind that in 0.3.2, Mergo changed Merge() and Map() signatures to support transformers. We added an optional/variadic argument so that it won't break the existing code.
If you were using Mergo before April 6th, 2015, please check your project works as intended after updating your local copy with go get -u dario.cat/mergo. I apologize for any issue caused by its previous behavior and any future bug that Mergo could cause in existing projects after the change (release 0.2.0).
# Install
Do your usual installation procedure:
go get dario.cat/mergo
// use in your .go code
import (
"dario.cat/mergo"
)
# Usage
You can only merge same-type structs with exported fields initialized as zero value of their type and same-types maps. Mergo won't merge unexported (private) fields but will do recursively any exported one. It won't merge empty structs value as they are zero values too. Also, maps will be merged recursively except for structs inside maps (because they are not addressable using Go reflection).
if err := mergo.Merge(&dst, src); err != nil {
// ...
}
Also, you can merge overwriting values using the transformer WithOverride.
if err := mergo.Merge(&dst, src, mergo.WithOverride); err != nil {
// ...
}
Additionally, you can map a map[string]interface{} to a struct (and otherwise, from struct to map), following the same restrictions as in Merge(). Keys are capitalized to find each corresponding exported field.
if err := mergo.Map(&dst, srcMap); err != nil {
// ...
}
Warning: if you map a struct to map, it won't do it recursively. Don't expect Mergo to map struct members of your struct as map[string]interface{}. They will be just assigned as values.
Here is a nice example:
package main
import (
"fmt"
"dario.cat/mergo"
)
type Foo struct {
A string
B int64
}
func main() {
src := Foo{
A: "one",
B: 2,
}
dest := Foo{
A: "two",
}
mergo.Merge(&dest, src)
fmt.Println(dest)
// Will print
// {two 2}
}
# Transformers
Transformers allow to merge specific types differently than in the default behavior. In other words, now you can customize how some types are merged. For example, time.Time is a struct; it doesn't have zero value but IsZero can return true because it has fields with zero value. How can we merge a non-zero time.Time?
package main
import (
"fmt"
"dario.cat/mergo"
"reflect"
"time"
)
type timeTransformer struct {
}
func (t timeTransformer) Transformer(typ reflect.Type) func(dst, src reflect.Value) error {
if typ == reflect.TypeOf(time.Time{}) {
return func(dst, src reflect.Value) error {
if dst.CanSet() {
isZero := dst.MethodByName("IsZero")
result := isZero.Call([]reflect.Value{})
if result[0].Bool() {
dst.Set(src)
}
}
return nil
}
}
return nil
}
type Snapshot struct {
Time time.Time
// ...
}
func main() {
src := Snapshot{time.Now()}
dest := Snapshot{}
mergo.Merge(&dest, src, mergo.WithTransformers(timeTransformer{}))
fmt.Println(dest)
// Will print
// { 2018-01-12 01:15:00 +0000 UTC m=+0.000000001 }
}
# Contact me
If I can help you, you have an idea or you are using Mergo in your projects, don't hesitate to drop me a line (or a pull request): https://twitter.com/im_dario
# About
Written by Dario Castañé: https://da.rio.hn
# License
BSD 3-Clause license, as Go language.
*/
package mergo

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@ -1,178 +0,0 @@
// Copyright 2014 Dario Castañé. All rights reserved.
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Based on src/pkg/reflect/deepequal.go from official
// golang's stdlib.
package mergo
import (
"fmt"
"reflect"
"unicode"
"unicode/utf8"
)
func changeInitialCase(s string, mapper func(rune) rune) string {
if s == "" {
return s
}
r, n := utf8.DecodeRuneInString(s)
return string(mapper(r)) + s[n:]
}
func isExported(field reflect.StructField) bool {
r, _ := utf8.DecodeRuneInString(field.Name)
return r >= 'A' && r <= 'Z'
}
// Traverses recursively both values, assigning src's fields values to dst.
// The map argument tracks comparisons that have already been seen, which allows
// short circuiting on recursive types.
func deepMap(dst, src reflect.Value, visited map[uintptr]*visit, depth int, config *Config) (err error) {
overwrite := config.Overwrite
if dst.CanAddr() {
addr := dst.UnsafeAddr()
h := 17 * addr
seen := visited[h]
typ := dst.Type()
for p := seen; p != nil; p = p.next {
if p.ptr == addr && p.typ == typ {
return nil
}
}
// Remember, remember...
visited[h] = &visit{typ, seen, addr}
}
zeroValue := reflect.Value{}
switch dst.Kind() {
case reflect.Map:
dstMap := dst.Interface().(map[string]interface{})
for i, n := 0, src.NumField(); i < n; i++ {
srcType := src.Type()
field := srcType.Field(i)
if !isExported(field) {
continue
}
fieldName := field.Name
fieldName = changeInitialCase(fieldName, unicode.ToLower)
if v, ok := dstMap[fieldName]; !ok || (isEmptyValue(reflect.ValueOf(v), !config.ShouldNotDereference) || overwrite) {
dstMap[fieldName] = src.Field(i).Interface()
}
}
case reflect.Ptr:
if dst.IsNil() {
v := reflect.New(dst.Type().Elem())
dst.Set(v)
}
dst = dst.Elem()
fallthrough
case reflect.Struct:
srcMap := src.Interface().(map[string]interface{})
for key := range srcMap {
config.overwriteWithEmptyValue = true
srcValue := srcMap[key]
fieldName := changeInitialCase(key, unicode.ToUpper)
dstElement := dst.FieldByName(fieldName)
if dstElement == zeroValue {
// We discard it because the field doesn't exist.
continue
}
srcElement := reflect.ValueOf(srcValue)
dstKind := dstElement.Kind()
srcKind := srcElement.Kind()
if srcKind == reflect.Ptr && dstKind != reflect.Ptr {
srcElement = srcElement.Elem()
srcKind = reflect.TypeOf(srcElement.Interface()).Kind()
} else if dstKind == reflect.Ptr {
// Can this work? I guess it can't.
if srcKind != reflect.Ptr && srcElement.CanAddr() {
srcPtr := srcElement.Addr()
srcElement = reflect.ValueOf(srcPtr)
srcKind = reflect.Ptr
}
}
if !srcElement.IsValid() {
continue
}
if srcKind == dstKind {
if err = deepMerge(dstElement, srcElement, visited, depth+1, config); err != nil {
return
}
} else if dstKind == reflect.Interface && dstElement.Kind() == reflect.Interface {
if err = deepMerge(dstElement, srcElement, visited, depth+1, config); err != nil {
return
}
} else if srcKind == reflect.Map {
if err = deepMap(dstElement, srcElement, visited, depth+1, config); err != nil {
return
}
} else {
return fmt.Errorf("type mismatch on %s field: found %v, expected %v", fieldName, srcKind, dstKind)
}
}
}
return
}
// Map sets fields' values in dst from src.
// src can be a map with string keys or a struct. dst must be the opposite:
// if src is a map, dst must be a valid pointer to struct. If src is a struct,
// dst must be map[string]interface{}.
// It won't merge unexported (private) fields and will do recursively
// any exported field.
// If dst is a map, keys will be src fields' names in lower camel case.
// Missing key in src that doesn't match a field in dst will be skipped. This
// doesn't apply if dst is a map.
// This is separated method from Merge because it is cleaner and it keeps sane
// semantics: merging equal types, mapping different (restricted) types.
func Map(dst, src interface{}, opts ...func(*Config)) error {
return _map(dst, src, opts...)
}
// MapWithOverwrite will do the same as Map except that non-empty dst attributes will be overridden by
// non-empty src attribute values.
// Deprecated: Use Map(…) with WithOverride
func MapWithOverwrite(dst, src interface{}, opts ...func(*Config)) error {
return _map(dst, src, append(opts, WithOverride)...)
}
func _map(dst, src interface{}, opts ...func(*Config)) error {
if dst != nil && reflect.ValueOf(dst).Kind() != reflect.Ptr {
return ErrNonPointerArgument
}
var (
vDst, vSrc reflect.Value
err error
)
config := &Config{}
for _, opt := range opts {
opt(config)
}
if vDst, vSrc, err = resolveValues(dst, src); err != nil {
return err
}
// To be friction-less, we redirect equal-type arguments
// to deepMerge. Only because arguments can be anything.
if vSrc.Kind() == vDst.Kind() {
return deepMerge(vDst, vSrc, make(map[uintptr]*visit), 0, config)
}
switch vSrc.Kind() {
case reflect.Struct:
if vDst.Kind() != reflect.Map {
return ErrExpectedMapAsDestination
}
case reflect.Map:
if vDst.Kind() != reflect.Struct {
return ErrExpectedStructAsDestination
}
default:
return ErrNotSupported
}
return deepMap(vDst, vSrc, make(map[uintptr]*visit), 0, config)
}

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@ -1,409 +0,0 @@
// Copyright 2013 Dario Castañé. All rights reserved.
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Based on src/pkg/reflect/deepequal.go from official
// golang's stdlib.
package mergo
import (
"fmt"
"reflect"
)
func hasMergeableFields(dst reflect.Value) (exported bool) {
for i, n := 0, dst.NumField(); i < n; i++ {
field := dst.Type().Field(i)
if field.Anonymous && dst.Field(i).Kind() == reflect.Struct {
exported = exported || hasMergeableFields(dst.Field(i))
} else if isExportedComponent(&field) {
exported = exported || len(field.PkgPath) == 0
}
}
return
}
func isExportedComponent(field *reflect.StructField) bool {
pkgPath := field.PkgPath
if len(pkgPath) > 0 {
return false
}
c := field.Name[0]
if 'a' <= c && c <= 'z' || c == '_' {
return false
}
return true
}
type Config struct {
Transformers Transformers
Overwrite bool
ShouldNotDereference bool
AppendSlice bool
TypeCheck bool
overwriteWithEmptyValue bool
overwriteSliceWithEmptyValue bool
sliceDeepCopy bool
debug bool
}
type Transformers interface {
Transformer(reflect.Type) func(dst, src reflect.Value) error
}
// Traverses recursively both values, assigning src's fields values to dst.
// The map argument tracks comparisons that have already been seen, which allows
// short circuiting on recursive types.
func deepMerge(dst, src reflect.Value, visited map[uintptr]*visit, depth int, config *Config) (err error) {
overwrite := config.Overwrite
typeCheck := config.TypeCheck
overwriteWithEmptySrc := config.overwriteWithEmptyValue
overwriteSliceWithEmptySrc := config.overwriteSliceWithEmptyValue
sliceDeepCopy := config.sliceDeepCopy
if !src.IsValid() {
return
}
if dst.CanAddr() {
addr := dst.UnsafeAddr()
h := 17 * addr
seen := visited[h]
typ := dst.Type()
for p := seen; p != nil; p = p.next {
if p.ptr == addr && p.typ == typ {
return nil
}
}
// Remember, remember...
visited[h] = &visit{typ, seen, addr}
}
if config.Transformers != nil && !isReflectNil(dst) && dst.IsValid() {
if fn := config.Transformers.Transformer(dst.Type()); fn != nil {
err = fn(dst, src)
return
}
}
switch dst.Kind() {
case reflect.Struct:
if hasMergeableFields(dst) {
for i, n := 0, dst.NumField(); i < n; i++ {
if err = deepMerge(dst.Field(i), src.Field(i), visited, depth+1, config); err != nil {
return
}
}
} else {
if dst.CanSet() && (isReflectNil(dst) || overwrite) && (!isEmptyValue(src, !config.ShouldNotDereference) || overwriteWithEmptySrc) {
dst.Set(src)
}
}
case reflect.Map:
if dst.IsNil() && !src.IsNil() {
if dst.CanSet() {
dst.Set(reflect.MakeMap(dst.Type()))
} else {
dst = src
return
}
}
if src.Kind() != reflect.Map {
if overwrite && dst.CanSet() {
dst.Set(src)
}
return
}
for _, key := range src.MapKeys() {
srcElement := src.MapIndex(key)
if !srcElement.IsValid() {
continue
}
dstElement := dst.MapIndex(key)
switch srcElement.Kind() {
case reflect.Chan, reflect.Func, reflect.Map, reflect.Interface, reflect.Slice:
if srcElement.IsNil() {
if overwrite {
dst.SetMapIndex(key, srcElement)
}
continue
}
fallthrough
default:
if !srcElement.CanInterface() {
continue
}
switch reflect.TypeOf(srcElement.Interface()).Kind() {
case reflect.Struct:
fallthrough
case reflect.Ptr:
fallthrough
case reflect.Map:
srcMapElm := srcElement
dstMapElm := dstElement
if srcMapElm.CanInterface() {
srcMapElm = reflect.ValueOf(srcMapElm.Interface())
if dstMapElm.IsValid() {
dstMapElm = reflect.ValueOf(dstMapElm.Interface())
}
}
if err = deepMerge(dstMapElm, srcMapElm, visited, depth+1, config); err != nil {
return
}
case reflect.Slice:
srcSlice := reflect.ValueOf(srcElement.Interface())
var dstSlice reflect.Value
if !dstElement.IsValid() || dstElement.IsNil() {
dstSlice = reflect.MakeSlice(srcSlice.Type(), 0, srcSlice.Len())
} else {
dstSlice = reflect.ValueOf(dstElement.Interface())
}
if (!isEmptyValue(src, !config.ShouldNotDereference) || overwriteWithEmptySrc || overwriteSliceWithEmptySrc) && (overwrite || isEmptyValue(dst, !config.ShouldNotDereference)) && !config.AppendSlice && !sliceDeepCopy {
if typeCheck && srcSlice.Type() != dstSlice.Type() {
return fmt.Errorf("cannot override two slices with different type (%s, %s)", srcSlice.Type(), dstSlice.Type())
}
dstSlice = srcSlice
} else if config.AppendSlice {
if srcSlice.Type() != dstSlice.Type() {
return fmt.Errorf("cannot append two slices with different type (%s, %s)", srcSlice.Type(), dstSlice.Type())
}
dstSlice = reflect.AppendSlice(dstSlice, srcSlice)
} else if sliceDeepCopy {
i := 0
for ; i < srcSlice.Len() && i < dstSlice.Len(); i++ {
srcElement := srcSlice.Index(i)
dstElement := dstSlice.Index(i)
if srcElement.CanInterface() {
srcElement = reflect.ValueOf(srcElement.Interface())
}
if dstElement.CanInterface() {
dstElement = reflect.ValueOf(dstElement.Interface())
}
if err = deepMerge(dstElement, srcElement, visited, depth+1, config); err != nil {
return
}
}
}
dst.SetMapIndex(key, dstSlice)
}
}
if dstElement.IsValid() && !isEmptyValue(dstElement, !config.ShouldNotDereference) {
if reflect.TypeOf(srcElement.Interface()).Kind() == reflect.Slice {
continue
}
if reflect.TypeOf(srcElement.Interface()).Kind() == reflect.Map && reflect.TypeOf(dstElement.Interface()).Kind() == reflect.Map {
continue
}
}
if srcElement.IsValid() && ((srcElement.Kind() != reflect.Ptr && overwrite) || !dstElement.IsValid() || isEmptyValue(dstElement, !config.ShouldNotDereference)) {
if dst.IsNil() {
dst.Set(reflect.MakeMap(dst.Type()))
}
dst.SetMapIndex(key, srcElement)
}
}
// Ensure that all keys in dst are deleted if they are not in src.
if overwriteWithEmptySrc {
for _, key := range dst.MapKeys() {
srcElement := src.MapIndex(key)
if !srcElement.IsValid() {
dst.SetMapIndex(key, reflect.Value{})
}
}
}
case reflect.Slice:
if !dst.CanSet() {
break
}
if (!isEmptyValue(src, !config.ShouldNotDereference) || overwriteWithEmptySrc || overwriteSliceWithEmptySrc) && (overwrite || isEmptyValue(dst, !config.ShouldNotDereference)) && !config.AppendSlice && !sliceDeepCopy {
dst.Set(src)
} else if config.AppendSlice {
if src.Type() != dst.Type() {
return fmt.Errorf("cannot append two slice with different type (%s, %s)", src.Type(), dst.Type())
}
dst.Set(reflect.AppendSlice(dst, src))
} else if sliceDeepCopy {
for i := 0; i < src.Len() && i < dst.Len(); i++ {
srcElement := src.Index(i)
dstElement := dst.Index(i)
if srcElement.CanInterface() {
srcElement = reflect.ValueOf(srcElement.Interface())
}
if dstElement.CanInterface() {
dstElement = reflect.ValueOf(dstElement.Interface())
}
if err = deepMerge(dstElement, srcElement, visited, depth+1, config); err != nil {
return
}
}
}
case reflect.Ptr:
fallthrough
case reflect.Interface:
if isReflectNil(src) {
if overwriteWithEmptySrc && dst.CanSet() && src.Type().AssignableTo(dst.Type()) {
dst.Set(src)
}
break
}
if src.Kind() != reflect.Interface {
if dst.IsNil() || (src.Kind() != reflect.Ptr && overwrite) {
if dst.CanSet() && (overwrite || isEmptyValue(dst, !config.ShouldNotDereference)) {
dst.Set(src)
}
} else if src.Kind() == reflect.Ptr {
if !config.ShouldNotDereference {
if err = deepMerge(dst.Elem(), src.Elem(), visited, depth+1, config); err != nil {
return
}
} else {
if overwriteWithEmptySrc || (overwrite && !src.IsNil()) || dst.IsNil() {
dst.Set(src)
}
}
} else if dst.Elem().Type() == src.Type() {
if err = deepMerge(dst.Elem(), src, visited, depth+1, config); err != nil {
return
}
} else {
return ErrDifferentArgumentsTypes
}
break
}
if dst.IsNil() || overwrite {
if dst.CanSet() && (overwrite || isEmptyValue(dst, !config.ShouldNotDereference)) {
dst.Set(src)
}
break
}
if dst.Elem().Kind() == src.Elem().Kind() {
if err = deepMerge(dst.Elem(), src.Elem(), visited, depth+1, config); err != nil {
return
}
break
}
default:
mustSet := (isEmptyValue(dst, !config.ShouldNotDereference) || overwrite) && (!isEmptyValue(src, !config.ShouldNotDereference) || overwriteWithEmptySrc)
if mustSet {
if dst.CanSet() {
dst.Set(src)
} else {
dst = src
}
}
}
return
}
// Merge will fill any empty for value type attributes on the dst struct using corresponding
// src attributes if they themselves are not empty. dst and src must be valid same-type structs
// and dst must be a pointer to struct.
// It won't merge unexported (private) fields and will do recursively any exported field.
func Merge(dst, src interface{}, opts ...func(*Config)) error {
return merge(dst, src, opts...)
}
// MergeWithOverwrite will do the same as Merge except that non-empty dst attributes will be overridden by
// non-empty src attribute values.
// Deprecated: use Merge(…) with WithOverride
func MergeWithOverwrite(dst, src interface{}, opts ...func(*Config)) error {
return merge(dst, src, append(opts, WithOverride)...)
}
// WithTransformers adds transformers to merge, allowing to customize the merging of some types.
func WithTransformers(transformers Transformers) func(*Config) {
return func(config *Config) {
config.Transformers = transformers
}
}
// WithOverride will make merge override non-empty dst attributes with non-empty src attributes values.
func WithOverride(config *Config) {
config.Overwrite = true
}
// WithOverwriteWithEmptyValue will make merge override non empty dst attributes with empty src attributes values.
func WithOverwriteWithEmptyValue(config *Config) {
config.Overwrite = true
config.overwriteWithEmptyValue = true
}
// WithOverrideEmptySlice will make merge override empty dst slice with empty src slice.
func WithOverrideEmptySlice(config *Config) {
config.overwriteSliceWithEmptyValue = true
}
// WithoutDereference prevents dereferencing pointers when evaluating whether they are empty
// (i.e. a non-nil pointer is never considered empty).
func WithoutDereference(config *Config) {
config.ShouldNotDereference = true
}
// WithAppendSlice will make merge append slices instead of overwriting it.
func WithAppendSlice(config *Config) {
config.AppendSlice = true
}
// WithTypeCheck will make merge check types while overwriting it (must be used with WithOverride).
func WithTypeCheck(config *Config) {
config.TypeCheck = true
}
// WithSliceDeepCopy will merge slice element one by one with Overwrite flag.
func WithSliceDeepCopy(config *Config) {
config.sliceDeepCopy = true
config.Overwrite = true
}
func merge(dst, src interface{}, opts ...func(*Config)) error {
if dst != nil && reflect.ValueOf(dst).Kind() != reflect.Ptr {
return ErrNonPointerArgument
}
var (
vDst, vSrc reflect.Value
err error
)
config := &Config{}
for _, opt := range opts {
opt(config)
}
if vDst, vSrc, err = resolveValues(dst, src); err != nil {
return err
}
if vDst.Type() != vSrc.Type() {
return ErrDifferentArgumentsTypes
}
return deepMerge(vDst, vSrc, make(map[uintptr]*visit), 0, config)
}
// IsReflectNil is the reflect value provided nil
func isReflectNil(v reflect.Value) bool {
k := v.Kind()
switch k {
case reflect.Interface, reflect.Slice, reflect.Chan, reflect.Func, reflect.Map, reflect.Ptr:
// Both interface and slice are nil if first word is 0.
// Both are always bigger than a word; assume flagIndir.
return v.IsNil()
default:
return false
}
}

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@ -1,81 +0,0 @@
// Copyright 2013 Dario Castañé. All rights reserved.
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Based on src/pkg/reflect/deepequal.go from official
// golang's stdlib.
package mergo
import (
"errors"
"reflect"
)
// Errors reported by Mergo when it finds invalid arguments.
var (
ErrNilArguments = errors.New("src and dst must not be nil")
ErrDifferentArgumentsTypes = errors.New("src and dst must be of same type")
ErrNotSupported = errors.New("only structs, maps, and slices are supported")
ErrExpectedMapAsDestination = errors.New("dst was expected to be a map")
ErrExpectedStructAsDestination = errors.New("dst was expected to be a struct")
ErrNonPointerArgument = errors.New("dst must be a pointer")
)
// During deepMerge, must keep track of checks that are
// in progress. The comparison algorithm assumes that all
// checks in progress are true when it reencounters them.
// Visited are stored in a map indexed by 17 * a1 + a2;
type visit struct {
typ reflect.Type
next *visit
ptr uintptr
}
// From src/pkg/encoding/json/encode.go.
func isEmptyValue(v reflect.Value, shouldDereference bool) bool {
switch v.Kind() {
case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
return v.Len() == 0
case reflect.Bool:
return !v.Bool()
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return v.Int() == 0
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
return v.Uint() == 0
case reflect.Float32, reflect.Float64:
return v.Float() == 0
case reflect.Interface, reflect.Ptr:
if v.IsNil() {
return true
}
if shouldDereference {
return isEmptyValue(v.Elem(), shouldDereference)
}
return false
case reflect.Func:
return v.IsNil()
case reflect.Invalid:
return true
}
return false
}
func resolveValues(dst, src interface{}) (vDst, vSrc reflect.Value, err error) {
if dst == nil || src == nil {
err = ErrNilArguments
return
}
vDst = reflect.ValueOf(dst).Elem()
if vDst.Kind() != reflect.Struct && vDst.Kind() != reflect.Map && vDst.Kind() != reflect.Slice {
err = ErrNotSupported
return
}
vSrc = reflect.ValueOf(src)
// We check if vSrc is a pointer to dereference it.
if vSrc.Kind() == reflect.Ptr {
vSrc = vSrc.Elem()
}
return
}

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@ -1 +0,0 @@
* text=auto eol=lf

View File

@ -1,10 +0,0 @@
.vscode/
*.exe
# testing
testdata
# go workspaces
go.work
go.work.sum

View File

@ -1,149 +0,0 @@
run:
skip-dirs:
- pkg/etw/sample
linters:
enable:
# style
- containedctx # struct contains a context
- dupl # duplicate code
- errname # erorrs are named correctly
- nolintlint # "//nolint" directives are properly explained
- revive # golint replacement
- unconvert # unnecessary conversions
- wastedassign
# bugs, performance, unused, etc ...
- contextcheck # function uses a non-inherited context
- errorlint # errors not wrapped for 1.13
- exhaustive # check exhaustiveness of enum switch statements
- gofmt # files are gofmt'ed
- gosec # security
- nilerr # returns nil even with non-nil error
- unparam # unused function params
issues:
exclude-rules:
# err is very often shadowed in nested scopes
- linters:
- govet
text: '^shadow: declaration of "err" shadows declaration'
# ignore long lines for skip autogen directives
- linters:
- revive
text: "^line-length-limit: "
source: "^//(go:generate|sys) "
#TODO: remove after upgrading to go1.18
# ignore comment spacing for nolint and sys directives
- linters:
- revive
text: "^comment-spacings: no space between comment delimiter and comment text"
source: "//(cspell:|nolint:|sys |todo)"
# not on go 1.18 yet, so no any
- linters:
- revive
text: "^use-any: since GO 1.18 'interface{}' can be replaced by 'any'"
# allow unjustified ignores of error checks in defer statements
- linters:
- nolintlint
text: "^directive `//nolint:errcheck` should provide explanation"
source: '^\s*defer '
# allow unjustified ignores of error lints for io.EOF
- linters:
- nolintlint
text: "^directive `//nolint:errorlint` should provide explanation"
source: '[=|!]= io.EOF'
linters-settings:
exhaustive:
default-signifies-exhaustive: true
govet:
enable-all: true
disable:
# struct order is often for Win32 compat
# also, ignore pointer bytes/GC issues for now until performance becomes an issue
- fieldalignment
check-shadowing: true
nolintlint:
allow-leading-space: false
require-explanation: true
require-specific: true
revive:
# revive is more configurable than static check, so likely the preferred alternative to static-check
# (once the perf issue is solved: https://github.com/golangci/golangci-lint/issues/2997)
enable-all-rules:
true
# https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md
rules:
# rules with required arguments
- name: argument-limit
disabled: true
- name: banned-characters
disabled: true
- name: cognitive-complexity
disabled: true
- name: cyclomatic
disabled: true
- name: file-header
disabled: true
- name: function-length
disabled: true
- name: function-result-limit
disabled: true
- name: max-public-structs
disabled: true
# geneally annoying rules
- name: add-constant # complains about any and all strings and integers
disabled: true
- name: confusing-naming # we frequently use "Foo()" and "foo()" together
disabled: true
- name: flag-parameter # excessive, and a common idiom we use
disabled: true
- name: unhandled-error # warns over common fmt.Print* and io.Close; rely on errcheck instead
disabled: true
# general config
- name: line-length-limit
arguments:
- 140
- name: var-naming
arguments:
- []
- - CID
- CRI
- CTRD
- DACL
- DLL
- DOS
- ETW
- FSCTL
- GCS
- GMSA
- HCS
- HV
- IO
- LCOW
- LDAP
- LPAC
- LTSC
- MMIO
- NT
- OCI
- PMEM
- PWSH
- RX
- SACl
- SID
- SMB
- TX
- VHD
- VHDX
- VMID
- VPCI
- WCOW
- WIM

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@ -1 +0,0 @@
* @microsoft/containerplat

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@ -1,22 +0,0 @@
The MIT License (MIT)
Copyright (c) 2015 Microsoft
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

View File

@ -1,89 +0,0 @@
# go-winio [![Build Status](https://github.com/microsoft/go-winio/actions/workflows/ci.yml/badge.svg)](https://github.com/microsoft/go-winio/actions/workflows/ci.yml)
This repository contains utilities for efficiently performing Win32 IO operations in
Go. Currently, this is focused on accessing named pipes and other file handles, and
for using named pipes as a net transport.
This code relies on IO completion ports to avoid blocking IO on system threads, allowing Go
to reuse the thread to schedule another goroutine. This limits support to Windows Vista and
newer operating systems. This is similar to the implementation of network sockets in Go's net
package.
Please see the LICENSE file for licensing information.
## Contributing
This project welcomes contributions and suggestions.
Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that
you have the right to, and actually do, grant us the rights to use your contribution.
For details, visit [Microsoft CLA](https://cla.microsoft.com).
When you submit a pull request, a CLA-bot will automatically determine whether you need to
provide a CLA and decorate the PR appropriately (e.g., label, comment).
Simply follow the instructions provided by the bot.
You will only need to do this once across all repos using our CLA.
Additionally, the pull request pipeline requires the following steps to be performed before
mergining.
### Code Sign-Off
We require that contributors sign their commits using [`git commit --signoff`][git-commit-s]
to certify they either authored the work themselves or otherwise have permission to use it in this project.
A range of commits can be signed off using [`git rebase --signoff`][git-rebase-s].
Please see [the developer certificate](https://developercertificate.org) for more info,
as well as to make sure that you can attest to the rules listed.
Our CI uses the DCO Github app to ensure that all commits in a given PR are signed-off.
### Linting
Code must pass a linting stage, which uses [`golangci-lint`][lint].
The linting settings are stored in [`.golangci.yaml`](./.golangci.yaml), and can be run
automatically with VSCode by adding the following to your workspace or folder settings:
```json
"go.lintTool": "golangci-lint",
"go.lintOnSave": "package",
```
Additional editor [integrations options are also available][lint-ide].
Alternatively, `golangci-lint` can be [installed locally][lint-install] and run from the repo root:
```shell
# use . or specify a path to only lint a package
# to show all lint errors, use flags "--max-issues-per-linter=0 --max-same-issues=0"
> golangci-lint run ./...
```
### Go Generate
The pipeline checks that auto-generated code, via `go generate`, are up to date.
This can be done for the entire repo:
```shell
> go generate ./...
```
## Code of Conduct
This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or
contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.
## Special Thanks
Thanks to [natefinch][natefinch] for the inspiration for this library.
See [npipe](https://github.com/natefinch/npipe) for another named pipe implementation.
[lint]: https://golangci-lint.run/
[lint-ide]: https://golangci-lint.run/usage/integrations/#editor-integration
[lint-install]: https://golangci-lint.run/usage/install/#local-installation
[git-commit-s]: https://git-scm.com/docs/git-commit#Documentation/git-commit.txt--s
[git-rebase-s]: https://git-scm.com/docs/git-rebase#Documentation/git-rebase.txt---signoff
[natefinch]: https://github.com/natefinch

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@ -1,41 +0,0 @@
<!-- BEGIN MICROSOFT SECURITY.MD V0.0.7 BLOCK -->
## Security
Microsoft takes the security of our software products and services seriously, which includes all source code repositories managed through our GitHub organizations, which include [Microsoft](https://github.com/Microsoft), [Azure](https://github.com/Azure), [DotNet](https://github.com/dotnet), [AspNet](https://github.com/aspnet), [Xamarin](https://github.com/xamarin), and [our GitHub organizations](https://opensource.microsoft.com/).
If you believe you have found a security vulnerability in any Microsoft-owned repository that meets [Microsoft's definition of a security vulnerability](https://aka.ms/opensource/security/definition), please report it to us as described below.
## Reporting Security Issues
**Please do not report security vulnerabilities through public GitHub issues.**
Instead, please report them to the Microsoft Security Response Center (MSRC) at [https://msrc.microsoft.com/create-report](https://aka.ms/opensource/security/create-report).
If you prefer to submit without logging in, send email to [secure@microsoft.com](mailto:secure@microsoft.com). If possible, encrypt your message with our PGP key; please download it from the [Microsoft Security Response Center PGP Key page](https://aka.ms/opensource/security/pgpkey).
You should receive a response within 24 hours. If for some reason you do not, please follow up via email to ensure we received your original message. Additional information can be found at [microsoft.com/msrc](https://aka.ms/opensource/security/msrc).
Please include the requested information listed below (as much as you can provide) to help us better understand the nature and scope of the possible issue:
* Type of issue (e.g. buffer overflow, SQL injection, cross-site scripting, etc.)
* Full paths of source file(s) related to the manifestation of the issue
* The location of the affected source code (tag/branch/commit or direct URL)
* Any special configuration required to reproduce the issue
* Step-by-step instructions to reproduce the issue
* Proof-of-concept or exploit code (if possible)
* Impact of the issue, including how an attacker might exploit the issue
This information will help us triage your report more quickly.
If you are reporting for a bug bounty, more complete reports can contribute to a higher bounty award. Please visit our [Microsoft Bug Bounty Program](https://aka.ms/opensource/security/bounty) page for more details about our active programs.
## Preferred Languages
We prefer all communications to be in English.
## Policy
Microsoft follows the principle of [Coordinated Vulnerability Disclosure](https://aka.ms/opensource/security/cvd).
<!-- END MICROSOFT SECURITY.MD BLOCK -->

View File

@ -1,290 +0,0 @@
//go:build windows
// +build windows
package winio
import (
"encoding/binary"
"errors"
"fmt"
"io"
"os"
"runtime"
"syscall"
"unicode/utf16"
"golang.org/x/sys/windows"
)
//sys backupRead(h syscall.Handle, b []byte, bytesRead *uint32, abort bool, processSecurity bool, context *uintptr) (err error) = BackupRead
//sys backupWrite(h syscall.Handle, b []byte, bytesWritten *uint32, abort bool, processSecurity bool, context *uintptr) (err error) = BackupWrite
const (
BackupData = uint32(iota + 1)
BackupEaData
BackupSecurity
BackupAlternateData
BackupLink
BackupPropertyData
BackupObjectId //revive:disable-line:var-naming ID, not Id
BackupReparseData
BackupSparseBlock
BackupTxfsData
)
const (
StreamSparseAttributes = uint32(8)
)
//nolint:revive // var-naming: ALL_CAPS
const (
WRITE_DAC = windows.WRITE_DAC
WRITE_OWNER = windows.WRITE_OWNER
ACCESS_SYSTEM_SECURITY = windows.ACCESS_SYSTEM_SECURITY
)
// BackupHeader represents a backup stream of a file.
type BackupHeader struct {
//revive:disable-next-line:var-naming ID, not Id
Id uint32 // The backup stream ID
Attributes uint32 // Stream attributes
Size int64 // The size of the stream in bytes
Name string // The name of the stream (for BackupAlternateData only).
Offset int64 // The offset of the stream in the file (for BackupSparseBlock only).
}
type win32StreamID struct {
StreamID uint32
Attributes uint32
Size uint64
NameSize uint32
}
// BackupStreamReader reads from a stream produced by the BackupRead Win32 API and produces a series
// of BackupHeader values.
type BackupStreamReader struct {
r io.Reader
bytesLeft int64
}
// NewBackupStreamReader produces a BackupStreamReader from any io.Reader.
func NewBackupStreamReader(r io.Reader) *BackupStreamReader {
return &BackupStreamReader{r, 0}
}
// Next returns the next backup stream and prepares for calls to Read(). It skips the remainder of the current stream if
// it was not completely read.
func (r *BackupStreamReader) Next() (*BackupHeader, error) {
if r.bytesLeft > 0 { //nolint:nestif // todo: flatten this
if s, ok := r.r.(io.Seeker); ok {
// Make sure Seek on io.SeekCurrent sometimes succeeds
// before trying the actual seek.
if _, err := s.Seek(0, io.SeekCurrent); err == nil {
if _, err = s.Seek(r.bytesLeft, io.SeekCurrent); err != nil {
return nil, err
}
r.bytesLeft = 0
}
}
if _, err := io.Copy(io.Discard, r); err != nil {
return nil, err
}
}
var wsi win32StreamID
if err := binary.Read(r.r, binary.LittleEndian, &wsi); err != nil {
return nil, err
}
hdr := &BackupHeader{
Id: wsi.StreamID,
Attributes: wsi.Attributes,
Size: int64(wsi.Size),
}
if wsi.NameSize != 0 {
name := make([]uint16, int(wsi.NameSize/2))
if err := binary.Read(r.r, binary.LittleEndian, name); err != nil {
return nil, err
}
hdr.Name = syscall.UTF16ToString(name)
}
if wsi.StreamID == BackupSparseBlock {
if err := binary.Read(r.r, binary.LittleEndian, &hdr.Offset); err != nil {
return nil, err
}
hdr.Size -= 8
}
r.bytesLeft = hdr.Size
return hdr, nil
}
// Read reads from the current backup stream.
func (r *BackupStreamReader) Read(b []byte) (int, error) {
if r.bytesLeft == 0 {
return 0, io.EOF
}
if int64(len(b)) > r.bytesLeft {
b = b[:r.bytesLeft]
}
n, err := r.r.Read(b)
r.bytesLeft -= int64(n)
if err == io.EOF {
err = io.ErrUnexpectedEOF
} else if r.bytesLeft == 0 && err == nil {
err = io.EOF
}
return n, err
}
// BackupStreamWriter writes a stream compatible with the BackupWrite Win32 API.
type BackupStreamWriter struct {
w io.Writer
bytesLeft int64
}
// NewBackupStreamWriter produces a BackupStreamWriter on top of an io.Writer.
func NewBackupStreamWriter(w io.Writer) *BackupStreamWriter {
return &BackupStreamWriter{w, 0}
}
// WriteHeader writes the next backup stream header and prepares for calls to Write().
func (w *BackupStreamWriter) WriteHeader(hdr *BackupHeader) error {
if w.bytesLeft != 0 {
return fmt.Errorf("missing %d bytes", w.bytesLeft)
}
name := utf16.Encode([]rune(hdr.Name))
wsi := win32StreamID{
StreamID: hdr.Id,
Attributes: hdr.Attributes,
Size: uint64(hdr.Size),
NameSize: uint32(len(name) * 2),
}
if hdr.Id == BackupSparseBlock {
// Include space for the int64 block offset
wsi.Size += 8
}
if err := binary.Write(w.w, binary.LittleEndian, &wsi); err != nil {
return err
}
if len(name) != 0 {
if err := binary.Write(w.w, binary.LittleEndian, name); err != nil {
return err
}
}
if hdr.Id == BackupSparseBlock {
if err := binary.Write(w.w, binary.LittleEndian, hdr.Offset); err != nil {
return err
}
}
w.bytesLeft = hdr.Size
return nil
}
// Write writes to the current backup stream.
func (w *BackupStreamWriter) Write(b []byte) (int, error) {
if w.bytesLeft < int64(len(b)) {
return 0, fmt.Errorf("too many bytes by %d", int64(len(b))-w.bytesLeft)
}
n, err := w.w.Write(b)
w.bytesLeft -= int64(n)
return n, err
}
// BackupFileReader provides an io.ReadCloser interface on top of the BackupRead Win32 API.
type BackupFileReader struct {
f *os.File
includeSecurity bool
ctx uintptr
}
// NewBackupFileReader returns a new BackupFileReader from a file handle. If includeSecurity is true,
// Read will attempt to read the security descriptor of the file.
func NewBackupFileReader(f *os.File, includeSecurity bool) *BackupFileReader {
r := &BackupFileReader{f, includeSecurity, 0}
return r
}
// Read reads a backup stream from the file by calling the Win32 API BackupRead().
func (r *BackupFileReader) Read(b []byte) (int, error) {
var bytesRead uint32
err := backupRead(syscall.Handle(r.f.Fd()), b, &bytesRead, false, r.includeSecurity, &r.ctx)
if err != nil {
return 0, &os.PathError{Op: "BackupRead", Path: r.f.Name(), Err: err}
}
runtime.KeepAlive(r.f)
if bytesRead == 0 {
return 0, io.EOF
}
return int(bytesRead), nil
}
// Close frees Win32 resources associated with the BackupFileReader. It does not close
// the underlying file.
func (r *BackupFileReader) Close() error {
if r.ctx != 0 {
_ = backupRead(syscall.Handle(r.f.Fd()), nil, nil, true, false, &r.ctx)
runtime.KeepAlive(r.f)
r.ctx = 0
}
return nil
}
// BackupFileWriter provides an io.WriteCloser interface on top of the BackupWrite Win32 API.
type BackupFileWriter struct {
f *os.File
includeSecurity bool
ctx uintptr
}
// NewBackupFileWriter returns a new BackupFileWriter from a file handle. If includeSecurity is true,
// Write() will attempt to restore the security descriptor from the stream.
func NewBackupFileWriter(f *os.File, includeSecurity bool) *BackupFileWriter {
w := &BackupFileWriter{f, includeSecurity, 0}
return w
}
// Write restores a portion of the file using the provided backup stream.
func (w *BackupFileWriter) Write(b []byte) (int, error) {
var bytesWritten uint32
err := backupWrite(syscall.Handle(w.f.Fd()), b, &bytesWritten, false, w.includeSecurity, &w.ctx)
if err != nil {
return 0, &os.PathError{Op: "BackupWrite", Path: w.f.Name(), Err: err}
}
runtime.KeepAlive(w.f)
if int(bytesWritten) != len(b) {
return int(bytesWritten), errors.New("not all bytes could be written")
}
return len(b), nil
}
// Close frees Win32 resources associated with the BackupFileWriter. It does not
// close the underlying file.
func (w *BackupFileWriter) Close() error {
if w.ctx != 0 {
_ = backupWrite(syscall.Handle(w.f.Fd()), nil, nil, true, false, &w.ctx)
runtime.KeepAlive(w.f)
w.ctx = 0
}
return nil
}
// OpenForBackup opens a file or directory, potentially skipping access checks if the backup
// or restore privileges have been acquired.
//
// If the file opened was a directory, it cannot be used with Readdir().
func OpenForBackup(path string, access uint32, share uint32, createmode uint32) (*os.File, error) {
winPath, err := syscall.UTF16FromString(path)
if err != nil {
return nil, err
}
h, err := syscall.CreateFile(&winPath[0],
access,
share,
nil,
createmode,
syscall.FILE_FLAG_BACKUP_SEMANTICS|syscall.FILE_FLAG_OPEN_REPARSE_POINT,
0)
if err != nil {
err = &os.PathError{Op: "open", Path: path, Err: err}
return nil, err
}
return os.NewFile(uintptr(h), path), nil
}

View File

@ -1,22 +0,0 @@
// This package provides utilities for efficiently performing Win32 IO operations in Go.
// Currently, this package is provides support for genreal IO and management of
// - named pipes
// - files
// - [Hyper-V sockets]
//
// This code is similar to Go's [net] package, and uses IO completion ports to avoid
// blocking IO on system threads, allowing Go to reuse the thread to schedule other goroutines.
//
// This limits support to Windows Vista and newer operating systems.
//
// Additionally, this package provides support for:
// - creating and managing GUIDs
// - writing to [ETW]
// - opening and manageing VHDs
// - parsing [Windows Image files]
// - auto-generating Win32 API code
//
// [Hyper-V sockets]: https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/user-guide/make-integration-service
// [ETW]: https://docs.microsoft.com/en-us/windows-hardware/drivers/devtest/event-tracing-for-windows--etw-
// [Windows Image files]: https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/work-with-windows-images
package winio

View File

@ -1,137 +0,0 @@
package winio
import (
"bytes"
"encoding/binary"
"errors"
)
type fileFullEaInformation struct {
NextEntryOffset uint32
Flags uint8
NameLength uint8
ValueLength uint16
}
var (
fileFullEaInformationSize = binary.Size(&fileFullEaInformation{})
errInvalidEaBuffer = errors.New("invalid extended attribute buffer")
errEaNameTooLarge = errors.New("extended attribute name too large")
errEaValueTooLarge = errors.New("extended attribute value too large")
)
// ExtendedAttribute represents a single Windows EA.
type ExtendedAttribute struct {
Name string
Value []byte
Flags uint8
}
func parseEa(b []byte) (ea ExtendedAttribute, nb []byte, err error) {
var info fileFullEaInformation
err = binary.Read(bytes.NewReader(b), binary.LittleEndian, &info)
if err != nil {
err = errInvalidEaBuffer
return ea, nb, err
}
nameOffset := fileFullEaInformationSize
nameLen := int(info.NameLength)
valueOffset := nameOffset + int(info.NameLength) + 1
valueLen := int(info.ValueLength)
nextOffset := int(info.NextEntryOffset)
if valueLen+valueOffset > len(b) || nextOffset < 0 || nextOffset > len(b) {
err = errInvalidEaBuffer
return ea, nb, err
}
ea.Name = string(b[nameOffset : nameOffset+nameLen])
ea.Value = b[valueOffset : valueOffset+valueLen]
ea.Flags = info.Flags
if info.NextEntryOffset != 0 {
nb = b[info.NextEntryOffset:]
}
return ea, nb, err
}
// DecodeExtendedAttributes decodes a list of EAs from a FILE_FULL_EA_INFORMATION
// buffer retrieved from BackupRead, ZwQueryEaFile, etc.
func DecodeExtendedAttributes(b []byte) (eas []ExtendedAttribute, err error) {
for len(b) != 0 {
ea, nb, err := parseEa(b)
if err != nil {
return nil, err
}
eas = append(eas, ea)
b = nb
}
return eas, err
}
func writeEa(buf *bytes.Buffer, ea *ExtendedAttribute, last bool) error {
if int(uint8(len(ea.Name))) != len(ea.Name) {
return errEaNameTooLarge
}
if int(uint16(len(ea.Value))) != len(ea.Value) {
return errEaValueTooLarge
}
entrySize := uint32(fileFullEaInformationSize + len(ea.Name) + 1 + len(ea.Value))
withPadding := (entrySize + 3) &^ 3
nextOffset := uint32(0)
if !last {
nextOffset = withPadding
}
info := fileFullEaInformation{
NextEntryOffset: nextOffset,
Flags: ea.Flags,
NameLength: uint8(len(ea.Name)),
ValueLength: uint16(len(ea.Value)),
}
err := binary.Write(buf, binary.LittleEndian, &info)
if err != nil {
return err
}
_, err = buf.Write([]byte(ea.Name))
if err != nil {
return err
}
err = buf.WriteByte(0)
if err != nil {
return err
}
_, err = buf.Write(ea.Value)
if err != nil {
return err
}
_, err = buf.Write([]byte{0, 0, 0}[0 : withPadding-entrySize])
if err != nil {
return err
}
return nil
}
// EncodeExtendedAttributes encodes a list of EAs into a FILE_FULL_EA_INFORMATION
// buffer for use with BackupWrite, ZwSetEaFile, etc.
func EncodeExtendedAttributes(eas []ExtendedAttribute) ([]byte, error) {
var buf bytes.Buffer
for i := range eas {
last := false
if i == len(eas)-1 {
last = true
}
err := writeEa(&buf, &eas[i], last)
if err != nil {
return nil, err
}
}
return buf.Bytes(), nil
}

View File

@ -1,331 +0,0 @@
//go:build windows
// +build windows
package winio
import (
"errors"
"io"
"runtime"
"sync"
"sync/atomic"
"syscall"
"time"
"golang.org/x/sys/windows"
)
//sys cancelIoEx(file syscall.Handle, o *syscall.Overlapped) (err error) = CancelIoEx
//sys createIoCompletionPort(file syscall.Handle, port syscall.Handle, key uintptr, threadCount uint32) (newport syscall.Handle, err error) = CreateIoCompletionPort
//sys getQueuedCompletionStatus(port syscall.Handle, bytes *uint32, key *uintptr, o **ioOperation, timeout uint32) (err error) = GetQueuedCompletionStatus
//sys setFileCompletionNotificationModes(h syscall.Handle, flags uint8) (err error) = SetFileCompletionNotificationModes
//sys wsaGetOverlappedResult(h syscall.Handle, o *syscall.Overlapped, bytes *uint32, wait bool, flags *uint32) (err error) = ws2_32.WSAGetOverlappedResult
type atomicBool int32
func (b *atomicBool) isSet() bool { return atomic.LoadInt32((*int32)(b)) != 0 }
func (b *atomicBool) setFalse() { atomic.StoreInt32((*int32)(b), 0) }
func (b *atomicBool) setTrue() { atomic.StoreInt32((*int32)(b), 1) }
//revive:disable-next-line:predeclared Keep "new" to maintain consistency with "atomic" pkg
func (b *atomicBool) swap(new bool) bool {
var newInt int32
if new {
newInt = 1
}
return atomic.SwapInt32((*int32)(b), newInt) == 1
}
var (
ErrFileClosed = errors.New("file has already been closed")
ErrTimeout = &timeoutError{}
)
type timeoutError struct{}
func (*timeoutError) Error() string { return "i/o timeout" }
func (*timeoutError) Timeout() bool { return true }
func (*timeoutError) Temporary() bool { return true }
type timeoutChan chan struct{}
var ioInitOnce sync.Once
var ioCompletionPort syscall.Handle
// ioResult contains the result of an asynchronous IO operation.
type ioResult struct {
bytes uint32
err error
}
// ioOperation represents an outstanding asynchronous Win32 IO.
type ioOperation struct {
o syscall.Overlapped
ch chan ioResult
}
func initIO() {
h, err := createIoCompletionPort(syscall.InvalidHandle, 0, 0, 0xffffffff)
if err != nil {
panic(err)
}
ioCompletionPort = h
go ioCompletionProcessor(h)
}
// win32File implements Reader, Writer, and Closer on a Win32 handle without blocking in a syscall.
// It takes ownership of this handle and will close it if it is garbage collected.
type win32File struct {
handle syscall.Handle
wg sync.WaitGroup
wgLock sync.RWMutex
closing atomicBool
socket bool
readDeadline deadlineHandler
writeDeadline deadlineHandler
}
type deadlineHandler struct {
setLock sync.Mutex
channel timeoutChan
channelLock sync.RWMutex
timer *time.Timer
timedout atomicBool
}
// makeWin32File makes a new win32File from an existing file handle.
func makeWin32File(h syscall.Handle) (*win32File, error) {
f := &win32File{handle: h}
ioInitOnce.Do(initIO)
_, err := createIoCompletionPort(h, ioCompletionPort, 0, 0xffffffff)
if err != nil {
return nil, err
}
err = setFileCompletionNotificationModes(h, windows.FILE_SKIP_COMPLETION_PORT_ON_SUCCESS|windows.FILE_SKIP_SET_EVENT_ON_HANDLE)
if err != nil {
return nil, err
}
f.readDeadline.channel = make(timeoutChan)
f.writeDeadline.channel = make(timeoutChan)
return f, nil
}
func MakeOpenFile(h syscall.Handle) (io.ReadWriteCloser, error) {
// If we return the result of makeWin32File directly, it can result in an
// interface-wrapped nil, rather than a nil interface value.
f, err := makeWin32File(h)
if err != nil {
return nil, err
}
return f, nil
}
// closeHandle closes the resources associated with a Win32 handle.
func (f *win32File) closeHandle() {
f.wgLock.Lock()
// Atomically set that we are closing, releasing the resources only once.
if !f.closing.swap(true) {
f.wgLock.Unlock()
// cancel all IO and wait for it to complete
_ = cancelIoEx(f.handle, nil)
f.wg.Wait()
// at this point, no new IO can start
syscall.Close(f.handle)
f.handle = 0
} else {
f.wgLock.Unlock()
}
}
// Close closes a win32File.
func (f *win32File) Close() error {
f.closeHandle()
return nil
}
// IsClosed checks if the file has been closed.
func (f *win32File) IsClosed() bool {
return f.closing.isSet()
}
// prepareIO prepares for a new IO operation.
// The caller must call f.wg.Done() when the IO is finished, prior to Close() returning.
func (f *win32File) prepareIO() (*ioOperation, error) {
f.wgLock.RLock()
if f.closing.isSet() {
f.wgLock.RUnlock()
return nil, ErrFileClosed
}
f.wg.Add(1)
f.wgLock.RUnlock()
c := &ioOperation{}
c.ch = make(chan ioResult)
return c, nil
}
// ioCompletionProcessor processes completed async IOs forever.
func ioCompletionProcessor(h syscall.Handle) {
for {
var bytes uint32
var key uintptr
var op *ioOperation
err := getQueuedCompletionStatus(h, &bytes, &key, &op, syscall.INFINITE)
if op == nil {
panic(err)
}
op.ch <- ioResult{bytes, err}
}
}
// todo: helsaawy - create an asyncIO version that takes a context
// asyncIO processes the return value from ReadFile or WriteFile, blocking until
// the operation has actually completed.
func (f *win32File) asyncIO(c *ioOperation, d *deadlineHandler, bytes uint32, err error) (int, error) {
if err != syscall.ERROR_IO_PENDING { //nolint:errorlint // err is Errno
return int(bytes), err
}
if f.closing.isSet() {
_ = cancelIoEx(f.handle, &c.o)
}
var timeout timeoutChan
if d != nil {
d.channelLock.Lock()
timeout = d.channel
d.channelLock.Unlock()
}
var r ioResult
select {
case r = <-c.ch:
err = r.err
if err == syscall.ERROR_OPERATION_ABORTED { //nolint:errorlint // err is Errno
if f.closing.isSet() {
err = ErrFileClosed
}
} else if err != nil && f.socket {
// err is from Win32. Query the overlapped structure to get the winsock error.
var bytes, flags uint32
err = wsaGetOverlappedResult(f.handle, &c.o, &bytes, false, &flags)
}
case <-timeout:
_ = cancelIoEx(f.handle, &c.o)
r = <-c.ch
err = r.err
if err == syscall.ERROR_OPERATION_ABORTED { //nolint:errorlint // err is Errno
err = ErrTimeout
}
}
// runtime.KeepAlive is needed, as c is passed via native
// code to ioCompletionProcessor, c must remain alive
// until the channel read is complete.
// todo: (de)allocate *ioOperation via win32 heap functions, instead of needing to KeepAlive?
runtime.KeepAlive(c)
return int(r.bytes), err
}
// Read reads from a file handle.
func (f *win32File) Read(b []byte) (int, error) {
c, err := f.prepareIO()
if err != nil {
return 0, err
}
defer f.wg.Done()
if f.readDeadline.timedout.isSet() {
return 0, ErrTimeout
}
var bytes uint32
err = syscall.ReadFile(f.handle, b, &bytes, &c.o)
n, err := f.asyncIO(c, &f.readDeadline, bytes, err)
runtime.KeepAlive(b)
// Handle EOF conditions.
if err == nil && n == 0 && len(b) != 0 {
return 0, io.EOF
} else if err == syscall.ERROR_BROKEN_PIPE { //nolint:errorlint // err is Errno
return 0, io.EOF
} else {
return n, err
}
}
// Write writes to a file handle.
func (f *win32File) Write(b []byte) (int, error) {
c, err := f.prepareIO()
if err != nil {
return 0, err
}
defer f.wg.Done()
if f.writeDeadline.timedout.isSet() {
return 0, ErrTimeout
}
var bytes uint32
err = syscall.WriteFile(f.handle, b, &bytes, &c.o)
n, err := f.asyncIO(c, &f.writeDeadline, bytes, err)
runtime.KeepAlive(b)
return n, err
}
func (f *win32File) SetReadDeadline(deadline time.Time) error {
return f.readDeadline.set(deadline)
}
func (f *win32File) SetWriteDeadline(deadline time.Time) error {
return f.writeDeadline.set(deadline)
}
func (f *win32File) Flush() error {
return syscall.FlushFileBuffers(f.handle)
}
func (f *win32File) Fd() uintptr {
return uintptr(f.handle)
}
func (d *deadlineHandler) set(deadline time.Time) error {
d.setLock.Lock()
defer d.setLock.Unlock()
if d.timer != nil {
if !d.timer.Stop() {
<-d.channel
}
d.timer = nil
}
d.timedout.setFalse()
select {
case <-d.channel:
d.channelLock.Lock()
d.channel = make(chan struct{})
d.channelLock.Unlock()
default:
}
if deadline.IsZero() {
return nil
}
timeoutIO := func() {
d.timedout.setTrue()
close(d.channel)
}
now := time.Now()
duration := deadline.Sub(now)
if deadline.After(now) {
// Deadline is in the future, set a timer to wait
d.timer = time.AfterFunc(duration, timeoutIO)
} else {
// Deadline is in the past. Cancel all pending IO now.
timeoutIO()
}
return nil
}

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