yumechi-no-kuni/scripts/build-pre.js

/*
 * SPDX-FileCopyrightText: syuilo and misskey-project
 * SPDX-License-Identifier: AGPL-3.0-only
 */

const fs = require('fs');
const child_process = require('child_process');
const packageJsonPath = __dirname + '/../package.json'

function build() {
	try {
		const gitDescribe = child_process.execSync('git describe --tags --always').toString().trim();
		const gitCommit = child_process.execSync('git rev-parse HEAD').toString().trim();
		const json = fs.readFileSync(packageJsonPath, 'utf-8')
		const meta = JSON.parse(json);
		fs.mkdirSync(__dirname + '/../built', { recursive: true });
		fs.writeFileSync(__dirname + '/../built/meta.json', 
			JSON.stringify(
				{ 
					version: meta.version, 
					gitCommit: gitCommit,
					gitDescribe: gitDescribe,
				}), 'utf-8');
	} catch (e) {
		console.error(e)
	}
}

build();

if (process.argv.includes("--watch")) {
	fs.watch(packageJsonPath, (event, filename) => {
		console.log(`update ${filename} ...`)
		build()
	})
}