@dapplion/benchmark/lib/esm/utils/git.js

Ensures that new code does not introduce performance regressions with CI. Tracks:

import { shell } from "./shell.js";
export async function getCurrentCommitInfo() {
    const commitSha = await shell("git show -s --format=%H");
    const timestampStr = await shell("git show -s --format=%ct");
    const timestamp = parseInt(timestampStr, 10);
    if (!timestamp || isNaN(timestamp)) {
        throw Error(`Invalid timestampStr ${timestampStr}`);
    }
    return {
        commitSha,
        timestamp,
    };
}
/**
 * Returns a chornological list of commits from `$branch`.
 *
 * - `--format=format:%H`: Print the full commit hash only
 * - `-n`: Display up to n commits
 * - `--no-pager` suppress interactive mode
 *
 * (from git-log docs):
 * List commits that are reachable by following the parent links from the given commit(s),
 * but exclude commits that are reachable from the one(s) given with a ^ in front of them.
 * The output is given in reverse chronological order by default.
 */
export async function getBranchCommitList(branch, n = 50) {
    await ensureBranchExists(branch);
    const commitsStr = await shell(`git --no-pager log --format=format:%H -n ${n} ${branch}`);
    return commitsStr.trim().split("\n");
}
/**
 * Resolve a heads ref
 */
export async function getBranchLatestCommit(branch) {
    await ensureBranchExists(branch);
    const res = await shell(`git rev-parse refs/heads/${branch}`);
    return res.trim();
}
/**
 * Ensure branch exists locally or try to fetch it from origin.
 * When using actions/checkout users normally only clone a single commit.
 * Getting the entire git history for all branches is a bit more tricky than this.
 */
async function ensureBranchExists(branch) {
    const refExists = await shell(`git show-ref --verify --quiet refs/heads/${branch}`).then(() => true, () => false);
    if (!refExists) {
        await shell(`git fetch origin ${branch}`);
    }
}