matrix-public-archive/build-scripts/write-version-files.js

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'use strict';
const path = require('path');
const { mkdir, writeFile } = require('fs').promises;
const util = require('util');
const exec = util.promisify(require('child_process').exec);
async function mkdirp(path) {
try {
await mkdir(path, { recursive: true });
} catch (err) {
console.log('mkdirp err', err);
// no-op, the directory is already created
}
}
async function writeVersionFiles() {
let commit;
let branch;
try {
commit = (await exec(`git rev-parse HEAD`)).stdout;
branch = (await exec(`git rev-parse --abbrev-ref HEAD`)).stdout;
} catch (err) {
console.log(
`Failed to use \`git\` to find the commit and branch.` +
` Falling back to using environment variables assuming we're running in GitHub CI. The error encountered:`,
err
);
// Pull these values from environment variables provided by GitHub CI
commit = process.env.GITHUB_SHA;
branch = process.env.GITHUB_REF;
}
if (!commit || !branch) {
throw new Error(
`Unable to get a suitable commit=${commit} or branch=${branch} while writing version files`
);
}
await mkdirp(path.join(__dirname, '../public/'));
await writeFile(path.join(__dirname, '../public/GIT_COMMIT'), commit);
await writeFile(path.join(__dirname, '../public/VERSION'), branch);
await writeFile(path.join(__dirname, '../public/VERSION_DATE'), new Date().toISOString());
}
module.exports = writeVersionFiles;