Add git_staged CLI functionality.

Cargo.lock

@@ -453,6 +453,7 @@ dependencies = [
  "assert_cmd",
  "clap",
  "color-eyre",
+ "globset",
  "hooked-config",
  "insta",
  "owo-colors",

hooked-cli/Cargo.toml

@@ -16,6 +16,7 @@ path = "source/main.rs"
 
 [dependencies]
 color-eyre = "0.6.2"
+globset = "0.4.9"
 owo-colors = "3.5.0"
 subprocess = "0.2.9"
 supports-color = "1.3.0"

hooked-cli/source/cli/run.rs

@@ -4,6 +4,7 @@ use std::{io::Read, process::exit};
 
 use {
   color_eyre::{eyre::eyre, Result},
+  globset::{Glob, GlobSetBuilder},
   hooked_config::{Config, ExitAction},
   owo_colors::{OwoColorize, Style},
   subprocess::{Exec, Redirection},
@@ -14,16 +15,17 @@ use crate::utilities::plural;
 
 /// The `run` subcommand.
 pub fn hooked_run(config: Config, hook_type: String) -> Result<()> {
-  let (success_style, warn_style, error_style) =
+  let (success_style, warn_style, error_style, skipped_style) =
     if let Some(_support) = supports_color::on(Stream::Stdout) {
       let shared_style = Style::new().bold();
       (
         shared_style.green(),
         shared_style.yellow(),
         shared_style.red(),
+        shared_style.blue(),
       )
     } else {
-      (Style::new(), Style::new(), Style::new())
+      (Style::new(), Style::new(), Style::new(), Style::new())
     };
 
   if hook_type == "pre-commit" {
@@ -34,9 +36,35 @@ pub fn hooked_run(config: Config, hook_type: String) -> Result<()> {
       plural(hook_count, "hook", None)
     );
 
-    for hook in config.pre_commit {
+    'hook_loop: for hook in config.pre_commit {
       let hook_name = hook.name.unwrap_or_else(|| "Unnamed Hook".to_string());
 
+      if !hook.git_staged.is_empty() {
+        let globs = {
+          let mut builder = GlobSetBuilder::new();
+          for glob in hook.git_staged {
+            builder.add(Glob::new(&glob)?);
+          }
+
+          builder.build()?
+        };
+
+        let staged_files = Exec::cmd("git")
+          .args(&["diff", "--name-only", "--cached"])
+          .capture()?
+          .stdout_str();
+        for line in staged_files.lines() {
+          if globs.is_match(line) {
+            println!(
+              "\t{} {}",
+              "≫".style(skipped_style),
+              hook_name.style(skipped_style)
+            );
+            continue 'hook_loop;
+          }
+        }
+      }
+
       let command = match (hook.task.command, hook.task.script) {
         (Some(command), _) => Ok(Exec::shell(command)),
 

hooked-config/source/config/pre_commit.rs

@@ -8,6 +8,10 @@ use crate::{ExitAction, Task};
 #[derive(Debug, Deserialize, Serialize)]
 #[serde(deny_unknown_fields)]
 pub struct PreCommit {
+  /// List of globs to check against staged files.
+  #[serde(default)]
+  pub git_staged: Vec<String>,
+
   /// Display name for this hook.
   pub name: Option<String>,
 

hooked-config/tests/parsing/with-hooks.toml

@@ -5,6 +5,7 @@ template = "test.sh"
 [[pre_commit]]
 name = "Pre Commit 1"
 command = "exit 0"
+git_staged = ["*.txt"]
 on_failure = "continue"
 
 [[pre_commit]]

hooked-config/tests/serialize.rs

@@ -8,6 +8,7 @@ use insta::assert_snapshot;
 #[test]
 fn test_serialize() {
   let pre_commit_command = PreCommit {
+    git_staged: vec!["*.txt".to_string()],
     name: Some("Command Test".to_string()),
     on_failure: ExitAction::Continue,
     task: Task {
@@ -17,6 +18,7 @@ fn test_serialize() {
   };
 
   let pre_commit_script = PreCommit {
+    git_staged: vec![],
     name: Some("Script Test".to_string()),
     on_failure: ExitAction::Stop,
     task: Task {

hooked-config/tests/snapshots/parsing__defaults.snap

@@ -10,6 +10,7 @@ Config {
     },
     pre_commit: [
         PreCommit {
+            git_staged: [],
             name: None,
             on_failure: Stop,
             task: Task {

hooked-config/tests/snapshots/parsing__with-hooks.snap

@@ -12,6 +12,9 @@ Config {
     },
     pre_commit: [
         PreCommit {
+            git_staged: [
+                "*.txt",
+            ],
             name: Some(
                 "Pre Commit 1",
             ),
@@ -24,6 +27,7 @@ Config {
             },
         },
         PreCommit {
+            git_staged: [],
             name: Some(
                 "Pre Commit 2",
             ),

hooked-config/tests/snapshots/serialize__serialize.snap

@@ -7,11 +7,13 @@ config = 'Hooked.toml'
 directory = 'hooks'
 
 [[pre_commit]]
+git_staged = ['*.txt']
 name = 'Command Test'
 on_failure = 'continue'
 command = 'exit 0'
 
 [[pre_commit]]
+git_staged = []
 name = 'Script Test'
 on_failure = 'stop'
 script = 'test.sh'