vcs-git 0.3.0

Automate the Git CLI from Rust through process execution.
Documentation 
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//! Shared helpers for `vcs-git` integration tests.
#![allow(dead_code)] // not every test binary uses every helper

use std::path::{Path, PathBuf};
use std::sync::atomic::{AtomicU64, Ordering};

static COUNTER: AtomicU64 = AtomicU64::new(0);

/// A unique temporary directory, removed on drop.
pub struct TempDir(PathBuf);

impl TempDir {
    pub fn new(tag: &str) -> Self {
        let path = std::env::temp_dir().join(format!(
            "vcs-git-test-{tag}-{}-{}",
            std::process::id(),
            COUNTER.fetch_add(1, Ordering::Relaxed)
        ));
        std::fs::create_dir_all(&path).expect("create temp dir");
        TempDir(path)
    }

    pub fn path(&self) -> &Path {
        &self.0
    }
}

impl Drop for TempDir {
    fn drop(&mut self) {
        let _ = std::fs::remove_dir_all(&self.0);
    }
}