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Enable anti-unwrap lints

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This commit is contained in:
Félix Saparelli 2019-10-28 01:10:54 +13:00
parent 5f7123ecbe
commit e563ae8fc1
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GPG key ID: 25940898BB90EA51
8 changed files with 81 additions and 63 deletions
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19
src/cli.rs
View file

@ -11,7 +11,7 @@
//! .cmd(vec!["echo hello world".into()])
//! .paths(vec![".".into()])
//! .build()
//! .unwrap();
//! .expect("mission failed");
//! ```
use crate::error;
@ -25,8 +25,9 @@ use std::{
/// Arguments to the watcher
#[derive(Builder, Clone, Debug)]
#[builder(setter(into, strip_option))]
#[builder(build_fn(validate = "Self::validate"))]
pub struct Args {
/// List of commands to be executed on change. Will be joined with `&&`.
/// Command to execute in popen3 format (first program, rest arguments).
pub cmd: Vec<String>,
/// List of paths to watch for changes.
pub paths: Vec<PathBuf>,
@ -75,6 +76,20 @@ pub struct Args {
pub poll_interval: u32,
}
impl ArgsBuilder {
fn validate(&self) -> Result<(), String> {
if self.cmd.as_ref().map_or(true, Vec::is_empty) {
return Err("cmd must not be empty".into());
}
if self.paths.as_ref().map_or(true, Vec::is_empty) {
return Err("paths must not be empty".into());
}
Ok(())
}
}
#[cfg(target_family = "windows")]
pub fn clear_screen() {
let _ = Command::new("cmd")

24
src/gitignore.rs
View file

@ -117,7 +117,7 @@ impl GitignoreFile {
file.read_to_string(&mut contents)?;
let lines: Vec<_> = contents.lines().collect();
let root = path.parent().unwrap();
let root = path.parent().expect("gitignore file is at filesystem root");
Self::from_strings(&lines, root)
}
@ -156,13 +156,8 @@ impl GitignoreFile {
}
fn matches(&self, path: &Path) -> MatchResult {
let stripped = path.strip_prefix(&self.root);
if stripped.is_err() {
return MatchResult::None;
}
let matches = self.set.matches(stripped.unwrap());
if let Ok(stripped) = path.strip_prefix(&self.root) {
let matches = self.set.matches(stripped);
if let Some(i) = matches.iter().rev().next() {
let pattern = &self.patterns[*i];
return match pattern.pattern_type {
@ -170,6 +165,7 @@ impl GitignoreFile {
PatternType::Ignore => MatchResult::Ignore,
};
}
}
MatchResult::None
}
@ -248,7 +244,8 @@ mod tests {
}
fn build_gitignore(pattern: &str) -> GitignoreFile {
GitignoreFile::from_strings(&[pattern], &base_dir()).unwrap()
GitignoreFile::from_strings(&[pattern], &base_dir())
.expect("test gitignore file invalid")
}
#[test]
@ -332,7 +329,8 @@ mod tests {
#[test]
fn test_empty_file_never_excludes() {
let file = GitignoreFile::from_strings(&[], &base_dir()).unwrap();
let file = GitignoreFile::from_strings(&[], &base_dir())
.expect("test gitignore file invalid");
assert!(!file.is_excluded(&base_dir().join("target")));
}
@ -340,7 +338,8 @@ mod tests {
#[test]
fn test_checks_all_patterns() {
let patterns = vec!["target", "target2"];
let file = GitignoreFile::from_strings(&patterns, &base_dir()).unwrap();
let file = GitignoreFile::from_strings(&patterns, &base_dir())
.expect("test gitignore file invalid");
assert!(file.is_excluded(&base_dir().join("target").join("foo.txt")));
assert!(file.is_excluded(&base_dir().join("target2").join("bar.txt")));
@ -349,7 +348,8 @@ mod tests {
#[test]
fn test_handles_whitelisting() {
let patterns = vec!["target", "!target/foo.txt"];
let file = GitignoreFile::from_strings(&patterns, &base_dir()).unwrap();
let file = GitignoreFile::from_strings(&patterns, &base_dir())
.expect("test gitignore file invalid");
assert!(!file.is_excluded(&base_dir().join("target").join("foo.txt")));
assert!(file.is_excluded(&base_dir().join("target").join("blah.txt")));

24
src/ignore.rs
View file

@ -110,7 +110,7 @@ impl IgnoreFile {
file.read_to_string(&mut contents)?;
let lines: Vec<_> = contents.lines().collect();
let root = path.parent().unwrap();
let root = path.parent().expect("ignore file is at filesystem root");
Self::from_strings(&lines, root)
}
@ -149,13 +149,8 @@ impl IgnoreFile {
}
fn matches(&self, path: &Path) -> MatchResult {
let stripped = path.strip_prefix(&self.root);
if stripped.is_err() {
return MatchResult::None;
}
let matches = self.set.matches(stripped.unwrap());
if let Ok(stripped) = path.strip_prefix(&self.root) {
let matches = self.set.matches(stripped);
if let Some(i) = matches.iter().rev().next() {
let pattern = &self.patterns[*i];
return match pattern.pattern_type {
@ -163,6 +158,7 @@ impl IgnoreFile {
PatternType::Ignore => MatchResult::Ignore,
};
}
}
MatchResult::None
}
@ -241,7 +237,8 @@ mod tests {
}
fn build_ignore(pattern: &str) -> IgnoreFile {
IgnoreFile::from_strings(&[pattern], &base_dir()).unwrap()
IgnoreFile::from_strings(&[pattern], &base_dir())
.expect("test ignore file invalid")
}
#[test]
@ -325,7 +322,8 @@ mod tests {
#[test]
fn test_empty_file_never_excludes() {
let file = IgnoreFile::from_strings(&[], &base_dir()).unwrap();
let file = IgnoreFile::from_strings(&[], &base_dir())
.expect("test ignore file invalid");
assert!(!file.is_excluded(&base_dir().join("target")));
}
@ -333,7 +331,8 @@ mod tests {
#[test]
fn test_checks_all_patterns() {
let patterns = vec!["target", "target2"];
let file = IgnoreFile::from_strings(&patterns, &base_dir()).unwrap();
let file = IgnoreFile::from_strings(&patterns, &base_dir())
.expect("test ignore file invalid");
assert!(file.is_excluded(&base_dir().join("target").join("foo.txt")));
assert!(file.is_excluded(&base_dir().join("target2").join("bar.txt")));
@ -342,7 +341,8 @@ mod tests {
#[test]
fn test_handles_whitelisting() {
let patterns = vec!["target", "!target/foo.txt"];
let file = IgnoreFile::from_strings(&patterns, &base_dir()).unwrap();
let file = IgnoreFile::from_strings(&patterns, &base_dir())
.expect("test ignore file invalid");
assert!(!file.is_excluded(&base_dir().join("target").join("foo.txt")));
assert!(file.is_excluded(&base_dir().join("target").join("blah.txt")));

4
src/lib.rs
View file

@ -15,8 +15,8 @@
deprecated,
intra_doc_link_resolution_failure,
// missing_docs,
// clippy::option_unwrap_used,
// clippy::result_unwrap_used,
clippy::option_unwrap_used,
clippy::result_unwrap_used,
)]
#![deny(unsafe_code, clippy::missing_const_for_fn)]
#![allow(clippy::default_trait_access, clippy::cognitive_complexity)]

15
src/notification_filter.rs
View file

@ -31,7 +31,7 @@ impl NotificationFilter {
if ignore_path.is_relative() && !i.starts_with('*') {
ignore_path = Path::new("**").join(&ignore_path);
}
let pattern = ignore_path.to_str().unwrap();
let pattern = ignore_path.to_str().expect("corrupted memory (string -> path -> string)");
ignore_set_builder.add(Glob::new(pattern)?);
debug!("Adding ignore: \"{}\"", pattern);
}
@ -83,7 +83,8 @@ mod tests {
#[test]
fn test_allows_everything_by_default() {
let filter =
NotificationFilter::new(&[], &[], gitignore::load(&[]), ignore::load(&[])).unwrap();
NotificationFilter::new(&[], &[], gitignore::load(&[]), ignore::load(&[]))
.expect("test filter errors");
assert!(!filter.is_excluded(Path::new("foo")));
}
@ -96,7 +97,7 @@ mod tests {
gitignore::load(&[]),
ignore::load(&[]),
)
.unwrap();
.expect("test filter errors");
assert!(filter.is_excluded(Path::new("/path/to/test.json")));
assert!(filter.is_excluded(Path::new("test.json")));
@ -106,7 +107,8 @@ mod tests {
fn test_multiple_filters() {
let filters = &["*.rs".into(), "*.toml".into()];
let filter =
NotificationFilter::new(filters, &[], gitignore::load(&[]), ignore::load(&[])).unwrap();
NotificationFilter::new(filters, &[], gitignore::load(&[]), ignore::load(&[]))
.expect("test filter errors");
assert!(!filter.is_excluded(Path::new("hello.rs")));
assert!(!filter.is_excluded(Path::new("Cargo.toml")));
@ -117,7 +119,8 @@ mod tests {
fn test_multiple_ignores() {
let ignores = &["*.rs".into(), "*.toml".into()];
let filter =
NotificationFilter::new(&[], ignores, gitignore::load(&[]), ignore::load(&[])).unwrap();
NotificationFilter::new(&[], ignores, gitignore::load(&[]), ignore::load(&[]))
.expect("test filter errors");
assert!(filter.is_excluded(Path::new("hello.rs")));
assert!(filter.is_excluded(Path::new("Cargo.toml")));
@ -129,7 +132,7 @@ mod tests {
let ignores = &["*.rs".into(), "*.toml".into()];
let filter =
NotificationFilter::new(ignores, ignores, gitignore::load(&[]), ignore::load(&[]))
.unwrap();
.expect("test filter errors");
assert!(filter.is_excluded(Path::new("hello.rs")));
assert!(filter.is_excluded(Path::new("Cargo.toml")));

20
src/process.rs
View file

@ -94,7 +94,7 @@ mod imp {
// but is a little less performant and can cause trouble when using custom signals
// (e.g. --signal SIGHUP)
let mut command = if no_shell {
let (head, tail) = cmd.split_first().unwrap();
let (head, tail) = cmd.split_first().expect("cmd was empty");
let mut command = Command::new(head);
command.args(tail);
command
@ -117,7 +117,7 @@ mod imp {
}
command.spawn().and_then(|p| {
Ok(Self {
pgid: p.id().try_into().unwrap(),
pgid: p.id().try_into().expect("u32 -> i32 failed in process::new"),
lock: Mutex::new(false),
cvar: Condvar::new(),
})
@ -141,7 +141,7 @@ mod imp {
}
if finished {
let mut done = self.lock.lock().unwrap();
let mut done = self.lock.lock().expect("poisoned lock in process::reap");
*done = true;
self.cvar.notify_one();
}
@ -166,9 +166,9 @@ mod imp {
}
pub fn wait(&self) {
let mut done = self.lock.lock().unwrap();
let mut done = self.lock.lock().expect("poisoned lock in process::wait");
while !*done {
done = self.cvar.wait(done).unwrap();
done = self.cvar.wait(done).expect("poisoned cvar in process::wait");
}
}
}
@ -256,7 +256,7 @@ mod imp {
let mut command;
if no_shell {
let (first, rest) = cmd.split_first().unwrap();
let (first, rest) = cmd.split_first().expect("command is empty");
command = Command::new(first);
command.args(rest);
} else {
@ -521,7 +521,7 @@ mod tests {
#[test]
fn longest_common_path_should_return_correct_value() {
let single_path = vec![PathBuf::from("/tmp/random/")];
let single_result = get_longest_common_path(&single_path).unwrap();
let single_result = get_longest_common_path(&single_path).expect("failed to get longest common path");
assert_eq!(single_result, "/tmp/random/");
let common_paths = vec![
@ -531,12 +531,12 @@ mod tests {
PathBuf::from("/tmp/logs/fly"),
];
let common_result = get_longest_common_path(&common_paths).unwrap();
let common_result = get_longest_common_path(&common_paths).expect("failed to get longest common path");
assert_eq!(common_result, "/tmp/logs");
let diverging_paths = vec![PathBuf::from("/tmp/logs/hi"), PathBuf::from("/var/logs/hi")];
let diverging_result = get_longest_common_path(&diverging_paths).unwrap();
let diverging_result = get_longest_common_path(&diverging_paths).expect("failed to get longest common path");
assert_eq!(diverging_result, "/");
let uneven_paths = vec![
@ -545,7 +545,7 @@ mod tests {
PathBuf::from("/tmp/logs/bye"),
];
let uneven_result = get_longest_common_path(&uneven_paths).unwrap();
let uneven_result = get_longest_common_path(&uneven_paths).expect("failed to get longest common path");
assert_eq!(uneven_result, "/tmp/logs");
}

4
src/run.rs
View file

@ -172,7 +172,7 @@ impl Handler for ExecHandler {
signal::install_handler(move |sig: Signal| {
if let Some(lock) = weak_child.upgrade() {
let strong = lock.read().unwrap();
let strong = lock.read().expect("poisoned lock in install_handler");
if let Some(ref child) = *strong {
match sig {
Signal::SIGCHLD => child.reap(), // SIGCHLD is special, initiate reap()
@ -299,7 +299,7 @@ fn wait_fs(rx: &Receiver<Event>, filter: &NotificationFilter, debounce: u64) ->
// signal_process sends signal to process. It waits for the process to exit if wait is true
fn signal_process(process: &RwLock<Option<Process>>, signal: Option<Signal>, wait: bool) {
let guard = process.read().unwrap();
let guard = process.read().expect("poisoned lock in signal_process");
if let Some(ref child) = *guard {
if let Some(s) = signal {

4
src/signal.rs
View file

@ -165,7 +165,7 @@ where
}
fn invoke(sig: self::Signal) {
if let Some(ref handler) = *CLEANUP.lock().unwrap() {
if let Some(ref handler) = *CLEANUP.lock().expect("poisoned lock in signal::invoke") {
handler(sig)
}
}
@ -174,5 +174,5 @@ fn set_handler<F>(handler: F)
where
F: Fn(self::Signal) + 'static + Send + Sync,
{
*CLEANUP.lock().unwrap() = Some(Box::new(handler));
*CLEANUP.lock().expect("poisoned lock in signal::set_handler") = Some(Box::new(handler));
}