lila/tasks/dist/html/backup.js

An automatic building tool of web frontend, for teamwork.

const fs = require('fs');
const fse = require('fs-extra');
const moment = require('moment');
const rd = require('rd');

const logger = require('../../../util/logger');

const projectConfig = require('../../../project_config');
const pathUtil = require('../../../util/path');
const current = require('../current');

/**
 * Backup html or file converted from html with time suffix.
 *
 * @example
 *
 * ```
 * dist/html/test/index.html -> dist/html/test/index-2016-07-01-12-12-12.html
 * ```
 *
 * @param cb
 */
module.exports = function backupHtml(cb) {
  logger.log('Backing up html files.', { prefix: !0, preLn: !0, postLn: !0 });

  if (current.config.backupHtml && fs.existsSync(projectConfig.buildPaths.dist.html)) {
    const suffix = moment().format('YYYY-MM-DD-HH-mm-ss');

    rd.eachFileFilterSync(projectConfig.buildPaths.dist.html, file => {
      // Source file path.
      const sourcePath = pathUtil.replaceBackSlash(file);

      const lastSlashIndex = sourcePath.lastIndexOf('/');
      const dir = sourcePath.slice(0, lastSlashIndex);
      const fileName = sourcePath.slice(lastSlashIndex + 1);

      const lastDotIndex = fileName.lastIndexOf('.');
      const baseFileName = fileName.slice(0, lastDotIndex);
      const extName = fileName.slice(lastDotIndex + 1);

      const targetPath = `${dir}/${baseFileName}-${suffix}.${extName}`;

      fse.copySync(sourcePath, targetPath);
    });
  }

  cb();
};