pijul 0.12.2

A patch-based distributed version control system, easy to use and fast. Command-line interface.
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use error::Error;
use libpijul::fs_representation::{RepoRoot, PIJUL_DIR_NAME};
use std::path::Path;
use std::process::Command;

pub fn run_hook(
    repo_root: &RepoRoot<impl AsRef<Path>>,
    hook: &'static str,
    additional_arg: Option<&String>,
) -> Result<(), Error> {
    let repo_root = &repo_root.repo_root;
    let mut cmd = repo_root.as_ref().to_path_buf();
    cmd.push(PIJUL_DIR_NAME);
    cmd.push("hooks");
    cmd.push(hook);

    if cmd.is_file() {
        println!("Running hook: {}", hook);

        let arg = match additional_arg {
            Some(ref arg) => vec![*arg],
            None => vec![],
        };

        let output = Command::new(cmd.as_path())
            .args(arg)
            .current_dir(repo_root)
            .output()?;

        if !output.status.success() {
            if let Ok(err) = String::from_utf8(output.stderr) {
                print!("{}", err);
            }
            return Err(Error::HookFailed {
                cmd: String::from(hook),
            });
        }
    }

    Ok(())
}