crowdin-helper/lib/commands/delete-old-branches.js

Unofficial Crowdin client to automate continuous integration workflow

const spawn = require('child_process').spawnSync;

const configManager = require('../utilities/config-manager');
const COLORS = require('../utilities/colors');
const CrowdinApi = require('../utilities/crowdin-api');

async function deleteOldBranches() {
  const minutesFromLastMasterMerge = _getDateDiffInMinutes(
    _getLastCommitToMasterDate(),
    new Date(),
  );
  const minutesSinceLastMasterMergeToPurgeSafely = configManager.get(
    'minutesSinceLastMasterMergeToPurgeSafely',
  );

  if (minutesFromLastMasterMerge < minutesSinceLastMasterMergeToPurgeSafely) {
    console.log(
      'Last merge to master was performed less than ' +
        minutesSinceLastMasterMergeToPurgeSafely +
        ' minutes ago. It is not safe to purge crowdin branches now',
    );

    console.log(`${COLORS.GREEN}Please retry later${COLORS.WHITE}`);

    process.exit(1);
  }

  const crowdinBranches = await CrowdinApi.getBranches().then((branchesData) =>
    branchesData.data.map((branchData) => ({
      name: branchData.data.name,
      id: branchData.data.id,
    })),
  );

  const gitBranchesConverted = _getGitRemoteBranches().map((gitBranch) =>
    gitBranch.replace(/\//g, '--'),
  );

  let isSomeBranchesDeleted = false;

  // we have to process requests to crowdin sequentially
  await crowdinBranches.reduce(async (sequentialPromise, branch) => {
    await sequentialPromise;

    if (!gitBranchesConverted.includes(branch.name)) {
      isSomeBranchesDeleted = true;

      return CrowdinApi.deleteBranch(branch.id)
        .then(() => {
          console.log(`Branch "${branch.name}" is removed from crowdin`);
        })
        .catch((e) => {
          console.log(`Failed to remove branch ${branch.name} from crowdin`, e);
        });
    }
  }, Promise.resolve());

  if (!isSomeBranchesDeleted) {
    console.log('All branches are actual. Nothing to delete');
  }
}

function _getGitRemoteBranches() {
  const child = spawn('git', ['ls-remote', '--heads']);

  return child.stdout
    .toString()
    .match(/refs\/heads\/.+/g)
    .map((s) => s.replace('refs/heads/', ''));
}

function _getDateDiff(date1, date2, ms) {
  const utc1 = Date.UTC(
    date1.getFullYear(),
    date1.getMonth(),
    date1.getDate(),
    date1.getHours(),
    date1.getMinutes(),
  );
  const utc2 = Date.UTC(
    date2.getFullYear(),
    date2.getMonth(),
    date2.getDate(),
    date2.getHours(),
    date2.getMinutes(),
  );

  return Math.floor((utc2 - utc1) / ms);
}

function _getDateDiffInDays(date1, date2) {
  const _MS_PER_DAY = 1000 * 60 * 60 * 24;

  return _getDateDiff(date1, date2, _MS_PER_DAY);
}

function _getDateDiffInMinutes(date1, date2) {
  const _MS_PER_MINUTE = 1000 * 60;

  return _getDateDiff(date1, date2, _MS_PER_MINUTE);
}

function _getLastCommitToMasterDate() {
  spawn('git', ['fetch']);
  const child = spawn('git', ['log', '-1', '--format=%cd', 'origin/master']);

  return new Date(child.stdout.toString());
}

module.exports = deleteOldBranches;