Get git stats for static site generation.

gitstats.js

const run = require('util').promisify(require('child_process').exec)

async function getGitStats() {
    const {stdout: refHash } = await run('git rev-parse HEAD')
    const {stdout: message } = await run(`git log --format=%B -n 1 ${refHash}`)
    const {stdout: branch } = await run('git rev-parse --abbrev-ref HEAD')

    return { refHash, message, branch }
}

getGitStats().then(console.log)

When executed in a directory located within a git repository, an object is returned with the commit message, commit hash, and branch name. Useful for displaying meta-information in static site builds.

Requires no external dependencies - util and child_process are both core to Node.

Example Output:

➜  example git:(master) ✗ node git.js
{
  refHash: '03046e948c33f96f9ed61939c699e2dbf230bb01\n',
  message: '[ deps ] bump deps\n\n',
  branch: 'master\n'
}