mati_core/scaffold/
mod.rs

1// Scaffold files written by mati init (M-06-I/J)
2// CLAUDE.md Vector C stub, .claude/settings.json, mati.json MCP config
3
4use std::path::Path;
5
6use anyhow::Result;
7
8pub mod claude_md;
9pub mod codex;
10pub mod settings;
11
12pub use claude_md::write_claude_md_stub;
13pub use codex::install_codex;
14pub use settings::install_hooks;
15
16/// Resolve the absolute path to the running mati binary.
17///
18/// Used by scaffold installers to pin both MCP config and hook scripts to the
19/// same binary. Falls back to `"mati"` if resolution fails (e.g. during tests).
20pub fn mati_binary_path() -> String {
21    std::env::current_exe()
22        .ok()
23        .and_then(|p| p.canonicalize().ok())
24        .map(|p| p.to_string_lossy().into_owned())
25        .unwrap_or_else(|| "mati".to_owned())
26}
27
28/// Write a `mati` wrapper script into `hooks_dir` that execs the resolved binary.
29///
30/// This ensures all hook scripts call the same mati binary used by the MCP server,
31/// regardless of what `mati` is on PATH. Each hook prepends its own directory to
32/// PATH so this wrapper is found first.
33pub fn write_mati_wrapper(hooks_dir: &Path) -> Result<()> {
34    let bin = mati_binary_path();
35    let content = format!(
36        "#!/usr/bin/env bash\n\
37         # mati binary wrapper — written by mati init.\n\
38         # Ensures hooks use the same binary as the MCP server.\n\
39         # DO NOT EDIT — regenerated on each mati init.\n\
40         [ -x \"{bin}\" ] || exit 0\n\
41         exec \"{bin}\" \"$@\"\n"
42    );
43    let path = hooks_dir.join("mati");
44    write_if_changed(&path, &content)?;
45    make_executable(&path)?;
46    Ok(())
47}
48
49pub(crate) fn write_if_changed(path: &Path, content: &str) -> Result<()> {
50    if path.exists() {
51        if let Ok(existing) = std::fs::read_to_string(path) {
52            if existing == content {
53                return Ok(());
54            }
55        }
56    }
57    std::fs::write(path, content)?;
58    Ok(())
59}
60
61#[cfg(unix)]
62pub(crate) fn make_executable(path: &Path) -> Result<()> {
63    use std::os::unix::fs::PermissionsExt;
64    let mut perms = std::fs::metadata(path)?.permissions();
65    perms.set_mode(0o755);
66    std::fs::set_permissions(path, perms)?;
67    Ok(())
68}
69
70#[cfg(not(unix))]
71pub(crate) fn make_executable(_path: &Path) -> Result<()> {
72    Ok(())
73}
mati_core/scaffold/mod.rs

mati_core/scaffold/
mod.rs
