mirror of
https://github.com/astral-sh/ruff.git
synced 2025-10-31 12:05:57 +00:00
90 lines
3.1 KiB
Rust
90 lines
3.1 KiB
Rust
use std::{
|
|
fs,
|
|
path::{Path, PathBuf},
|
|
process::Command,
|
|
};
|
|
|
|
fn main() {
|
|
// The workspace root directory is not available without walking up the tree
|
|
// https://github.com/rust-lang/cargo/issues/3946
|
|
let workspace_root = Path::new(&std::env::var("CARGO_MANIFEST_DIR").unwrap())
|
|
.join("..")
|
|
.join("..");
|
|
|
|
commit_info(&workspace_root);
|
|
}
|
|
|
|
/// Retrieve commit information from the Git repository.
|
|
fn commit_info(workspace_root: &Path) {
|
|
// If not in a git repository, do not attempt to retrieve commit information
|
|
let git_dir = workspace_root.join(".git");
|
|
if !git_dir.exists() {
|
|
return;
|
|
}
|
|
|
|
if let Some(git_head_path) = git_head(&git_dir) {
|
|
println!("cargo:rerun-if-changed={}", git_head_path.display());
|
|
|
|
let git_head_contents = fs::read_to_string(git_head_path);
|
|
if let Ok(git_head_contents) = git_head_contents {
|
|
// The contents are either a commit or a reference in the following formats
|
|
// - "<commit>" when the head is detached
|
|
// - "ref <ref>" when working on a branch
|
|
// If a commit, checking if the HEAD file has changed is sufficient
|
|
// If a ref, we need to add the head file for that ref to rebuild on commit
|
|
let mut git_ref_parts = git_head_contents.split_whitespace();
|
|
git_ref_parts.next();
|
|
if let Some(git_ref) = git_ref_parts.next() {
|
|
let git_ref_path = git_dir.join(git_ref);
|
|
println!("cargo:rerun-if-changed={}", git_ref_path.display());
|
|
}
|
|
}
|
|
}
|
|
|
|
let output = match Command::new("git")
|
|
.arg("log")
|
|
.arg("-1")
|
|
.arg("--date=short")
|
|
.arg("--abbrev=9")
|
|
.arg("--format=%H %h %cd %(describe:tags)")
|
|
.current_dir(workspace_root)
|
|
.output()
|
|
{
|
|
Ok(output) if output.status.success() => output,
|
|
_ => return,
|
|
};
|
|
|
|
let stdout = String::from_utf8(output.stdout).unwrap();
|
|
|
|
let mut parts = stdout.split_whitespace();
|
|
let mut next = || parts.next().unwrap();
|
|
let _commit_hash = next();
|
|
println!("cargo::rustc-env=TY_WASM_COMMIT_SHORT_HASH={}", next());
|
|
}
|
|
|
|
fn git_head(git_dir: &Path) -> Option<PathBuf> {
|
|
// The typical case is a standard git repository.
|
|
let git_head_path = git_dir.join("HEAD");
|
|
if git_head_path.exists() {
|
|
return Some(git_head_path);
|
|
}
|
|
if !git_dir.is_file() {
|
|
return None;
|
|
}
|
|
// If `.git/HEAD` doesn't exist and `.git` is actually a file,
|
|
// then let's try to attempt to read it as a worktree. If it's
|
|
// a worktree, then its contents will look like this, e.g.:
|
|
//
|
|
// gitdir: /home/andrew/astral/uv/main/.git/worktrees/pr2
|
|
//
|
|
// And the HEAD file we want to watch will be at:
|
|
//
|
|
// /home/andrew/astral/uv/main/.git/worktrees/pr2/HEAD
|
|
let contents = fs::read_to_string(git_dir).ok()?;
|
|
let (label, worktree_path) = contents.split_once(':')?;
|
|
if label != "gitdir" {
|
|
return None;
|
|
}
|
|
let worktree_path = worktree_path.trim();
|
|
Some(PathBuf::from(worktree_path))
|
|
}
|