version.js

const {gitDescribeSync} = require('git-describe');
const {version} = require('./package.json');
const {resolve,relative} = require('path');

const {writeFileSync} = require('fs-extra');

const gitInfo = gitDescribeSync({
  dirtyMark: false,
  dirtySemver: false
});

gitInfo.version = version;

const file = resolve(__dirname, './', 'src', 'environments', 'version.ts');
writeFileSync(file,
  `// IMPORTANT: THIS FILE IS AUTO GENERATED! DO NOT MANUALLY EDIT OR CHECKIN!
/* tslint:disable */
export const VERSION = ${JSON.stringify(gitInfo, null, 4)};
/* tslint:enable */
`, {
    encoding: 'utf-8'
  });

console.log(`Wrote version info ${gitInfo.raw} to ${relative(resolve(__dirname, './'), file)}`);