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.cargo Learn some build optimisations from binstall (#416) 2022-09-07 06:00:08 +00:00
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bin Remove obsolete bin/ scripts (#322) 2022-06-16 15:46:32 +00:00
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crates Add apt.cli.rs to install methods (#451) 2022-12-02 22:44:04 +00:00
doc Add openSUSE and MINGW packages (#453) 2022-12-02 23:16:56 +00:00
test Remask received signal after re-raising it 2016-12-15 09:41:10 -05:00
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.rustfmt.toml Apply tabs project-wide 2021-08-24 20:22:25 +12:00
Cargo.lock Add option to exit when stdin ends (#449) 2022-12-01 23:19:04 +00:00
Cargo.toml Learn some build optimisations from binstall (#416) 2022-09-07 06:00:08 +00:00
CITATION.cff release: watchexec-cli v1.20.6 (#415) 2022-09-07 05:30:28 +00:00
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LICENSE Create LICENSE 2016-09-18 16:43:26 -04:00
README.md Add apt.cli.rs to install methods (#451) 2022-12-02 22:44:04 +00:00
release.toml Setup cargo-release 2022-02-10 01:40:32 +13:00

CI status on main branch

Watchexec

Software development often involves running the same commands over and over. Boring!

watchexec is a simple, standalone tool that watches a path and runs a command whenever it detects modifications.

Example use cases:

  • Automatically run unit tests
  • Run linters/syntax checkers

Features

  • Simple invocation and use, does not require a cryptic command line involving xargs
  • Runs on OS X, Linux, and Windows
  • Monitors current directory and all subdirectories for changes
  • Coalesces multiple filesystem events into one, for editors that use swap/backup files during saving
  • Loads .gitignore and .ignore files
  • Uses process groups to keep hold of forking programs
  • Provides the paths that changed in environment variables
  • Does not require a language runtime, not tied to any particular language or ecosystem
  • And more!

Quick start

Watch all JavaScript, CSS and HTML files in the current directory and all subdirectories for changes, running npm run build when a change is detected:

$ watchexec -e js,css,html npm run build

Call/restart python server.py when any Python file in the current directory (and all subdirectories) changes:

$ watchexec -r -e py -- python server.py

More usage examples: in the CLI README!

Install

Packaging status

All options in detail: in the CLI README and in the manual page.

Augment

Watchexec pairs well with:

  • checkexec: to run only when source files are newer than a target file
  • just: a modern alternative to make
  • systemfd: socket-passing in development

Extend