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gn_cli/commands/
hook.rs

1use anyhow::{Context, Result};
2use clap::{Args, Subcommand};
3use std::fs;
4use std::path::Path;
5use std::process::Command;
6
7#[derive(Args, Debug)]
8pub struct HookArgs {
9    #[command(subcommand)]
10    pub action: HookAction,
11}
12
13#[derive(Subcommand, Debug)]
14pub enum HookAction {
15    /// Install auto-sync hooks into local .git/hooks/
16    Install,
17    /// Remove auto-sync hooks from local .git/hooks/
18    Uninstall,
19}
20
21pub fn run(args: &HookArgs) -> Result<()> {
22    let root_out = Command::new("git")
23        .args(["rev-parse", "--show-toplevel"])
24        .output()
25        .context("Failed to check git repository")?;
26
27    if !root_out.status.success() {
28        anyhow::bail!("Not inside a Git repository.");
29    }
30
31    let repo_root = String::from_utf8_lossy(&root_out.stdout).trim().to_string();
32    let hooks_dir = Path::new(&repo_root).join(".git").join("hooks");
33
34    let post_merge = hooks_dir.join("post-merge");
35    let pre_push = hooks_dir.join("pre-push");
36
37    match args.action {
38        HookAction::Install => {
39            fs::create_dir_all(&hooks_dir)?;
40            let pm_script = "#!/bin/sh\n# git-notes auto-sync hook\ngit-notes sync pull --quiet 2>/dev/null || true\n";
41            let pp_script = "#!/bin/sh\n# git-notes auto-sync hook\ngit-notes sync push --quiet 2>/dev/null || true\n";
42
43            fs::write(&post_merge, pm_script)?;
44            fs::write(&pre_push, pp_script)?;
45
46            #[cfg(unix)]
47            {
48                use std::os::unix::fs::PermissionsExt;
49                let mut perms = fs::metadata(&post_merge)?.permissions();
50                perms.set_mode(0o755);
51                fs::set_permissions(&post_merge, perms)?;
52
53                let mut perms2 = fs::metadata(&pre_push)?.permissions();
54                perms2.set_mode(0o755);
55                fs::set_permissions(&pre_push, perms2)?;
56            }
57
58            println!("\x1b[32m✔\x1b[0m Successfully installed auto-sync hooks in .git/hooks/");
59        }
60        HookAction::Uninstall => {
61            if post_merge.exists() {
62                let content = fs::read_to_string(&post_merge).unwrap_or_default();
63                if content.contains("git-notes") {
64                    fs::remove_file(&post_merge)?;
65                }
66            }
67            if pre_push.exists() {
68                let content = fs::read_to_string(&pre_push).unwrap_or_default();
69                if content.contains("git-notes") {
70                    fs::remove_file(&pre_push)?;
71                }
72            }
73            println!("\x1b[32m✔\x1b[0m Removed git-notes hooks from .git/hooks/");
74        }
75    }
76
77    Ok(())
78}