Gulp Script to flatten Bannertime files into a single directory.

flatten.js

'use strict';

var config = require('../config');
var gulp = require('gulp');
var flatten = require('gulp-flatten');
var del = require('del');
var fs = require('fs');
var path = require('path');
var dir = require('node-dir');
var replace = require('gulp-replace-path');
var rename = require('gulp-rename');


gulp.task('replace-html', function() {
  dir.subdirs(config.root.dest , function(err, subdirs) {
    if (err) throw err;
    var tasks = subdirs.map(function(folder) {
      var patt = new RegExp(/[0-9]*x[0-9]*(-flat)$/);
      if (patt.test(folder)) {
        var parsep = path.basename(folder);
        var basePath = path.relative(config.root.dest, path.dirname(folder));
        var relativeFilePath = path.join(path.sep, basePath, parsep);
        return gulp.src(path.join(folder, '/**/*.html'))
          .pipe(replace(/(styles|images|js)\/(.*?(jpe?g|png|gif|css|js))/gi, '$2'))
          .pipe(rename({dirname: ''}))
          .pipe(gulp.dest(path.join(config.root.dest, relativeFilePath)));
      }
    });
    return tasks;
  });
});

gulp.task('replace-js', function() {
  dir.subdirs(config.root.dest , function(err, subdirs) {
    if (err) throw err;
    var tasks = subdirs.map(function(folder) {
      var patt = new RegExp(/[0-9]*x[0-9]*(-flat)$/);
      if (patt.test(folder)) {
        var parsep = path.basename(folder);
        var basePath = path.relative(config.root.dest, path.dirname(folder));
        var relativeFilePath = path.join(path.sep, basePath, parsep);
        return gulp.src(path.join(folder, '/**/js/*.js'))
          .pipe(replace(/(images)\/(.*?(jpe?g|png|gif))/gi, '$2'))
          .pipe(rename({dirname: ''}))
          .pipe(gulp.dest(path.join(config.root.dest, relativeFilePath)));
      }
    });
    return tasks;
  });
});

gulp.task('replace-css', function() {
  dir.subdirs(config.root.dest , function(err, subdirs) {
    if (err) throw err;
    var tasks = subdirs.map(function(folder) {
      var patt = new RegExp(/[0-9]*x[0-9]*(-flat)$/);
      if (patt.test(folder)) {
        var parsep = path.basename(folder);
        var basePath = path.relative(config.root.dest, path.dirname(folder));
        var relativeFilePath = path.join(path.sep, basePath, parsep);
        return gulp.src(path.join(folder, '/**/styles/*.css'))
          .pipe(replace(/(\.\.\/images)\/(.*(jpe?g|png|gif))/gi, '$2'))
          .pipe(rename({dirname: ''}))
          .pipe(gulp.dest(path.join(config.root.dest, relativeFilePath)));
      }
    });
    return tasks;
  });
});

gulp.task('flatten', ['replace-css', 'replace-js', 'replace-html'], function() {
  dir.subdirs(config.root.dest , function(err, subdirs) {
    if (err) throw err;
    var tasks = subdirs.map(function(folder) {
      var patt = new RegExp(/[0-9]*x[0-9]*(-flat)$/);
      if (patt.test(folder)) {
        var parsep = path.basename(folder);
        var basePath = path.relative(config.root.dest, path.dirname(folder));
        var relativeFilePath = path.join(path.sep, basePath, parsep);
        return gulp.src(path.join(folder, '/**/images/*'))
        .pipe(flatten())
        .pipe(gulp.dest(path.join(config.root.dest, relativeFilePath)))
        .on('end', function(){
          del([
            path.join(config.root.dest, relativeFilePath, 'images'),
            path.join(config.root.dest, relativeFilePath, 'styles'),
            path.join(config.root.dest, relativeFilePath, 'js'),
          ])
        });
      }
    });
    return tasks;
  });
});