thumbsup/src/index.js

var _           = require('lodash');
var fs          = require('fs-extra');
var os          = require('os');
var path        = require('path');
var wrench      = require('wrench');
var gulp        = require('gulp');
var newer       = require('gulp-newer');
var rename      = require("gulp-rename");
var imageResize = require('gulp-image-resize');
var parallel    = require('concurrent-transform');
var exec        = require('exec-sync');
var gm          = require('gm');
var glob        = require('glob');
var async       = require('async');

var galleries   = require('./galleries');
var render      = require('./render');
var thumbs      = require('./thumbs');

exports.build = function(opts) {

  opts.size = opts.size || 100;

  fs.mkdirp(opts.output);
  var thumbsFolder = path.join(path.resolve(opts.output), 'thumbs');
  console.log('thumbs=', thumbsFolder)
  var list = galleries.fromDisk(opts.input, opts.mediaPrefix);
  
  gulp.task('thumbs-photos', function() {
    var dest = opts.output + '/thumbs';
    gulp
    .src(opts.input + '/**/*.{jpg,png}')
    .pipe(newer(dest))
    .pipe(parallel(imageResize({width: opts.size, height: opts.size, crop: true}), os.cpus().length))
    .pipe(gulp.dest(dest));
  });

  gulp.task('thumbs-videos', function() {
    glob('**/*.{mp4,mov}', {cwd: opts.input, nonull:false}, function (er, files) {
      var fns = files.map(function(file) {
        return function(next) {
          thumbs.video({
            input: path.resolve(path.join(opts.input, file)),
            thumbnail: path.join(thumbsFolder, file.replace(/\.[a-z0-9]+$/, '.jpg')),
            poster: path.join(thumbsFolder, file.replace(/\.[a-z0-9]+$/, '_poster.jpg')),
            size: opts.size
          }, next);
        };
      });
      async.parallel(fns, function(err) {
        console.log(err ? ('Videos: ' + err) : 'Videos [OK]');
      });
    });

    // var files = wrench.readdirSyncRecursive(opts.input);
    // var videos = files.filter(function(f) {
    //   return f.match(/\.(mp4|mov)$/);
    // });
    
    // videos.forEach(function(videoPath) {

    //   var input  = path.join(opts.input, videoPath);
    //   var thumb  = path.join(opts.output, 'thumbs', videoPath.replace(/\.[a-z0-9]+$/, '.jpg'));
    //   var poster = path.join(opts.output, 'thumbs', videoPath.replace(/\.[a-z0-9]+$/, '_poster.jpg'));

    //   var ffmpeg = 'ffmpeg -itsoffset -1 -i "' + input + '" -ss 0.1 -vframes 1 -y "' + poster + '"';

    //   var exec = require('child_process').exec
    //   exec(ffmpeg, function(err, stdout, stderr) {
    //     if (err) {
    //       console.error('ffmpeg:', err);
    //     }
    //     gm(poster)
    //     .resize(opts.size, opts.size, "^")
    //     .gravity('Center')
    //     .crop(opts.size, opts.size)
    //     .write(thumb, function (err) {
    //       if (err) console.error(err);
    //     });
    //   });

    // });
  });

  gulp.task('index', function() {
    var rendered = render.gallery(list, list[0]);
    var outputPath = path.join(opts.output, 'index.html');
    fs.writeFileSync(outputPath, rendered);
  });
  
  gulp.task('public', function() {
    var dest = opts.output + '/public';
    gulp
    .src(path.join(__dirname, '..', 'public', '**'))
    .pipe(newer(dest))
    .pipe(gulp.dest(dest));
  });
  
  gulp.task('galleries', function() {
    list.forEach(function(folder) {
      var rendered = render.gallery(list, folder);
      var outputPath = path.join(opts.output, folder.url);
      fs.writeFileSync(outputPath, rendered);
    });
  });
  
  gulp.run('thumbs-photos', 'thumbs-videos', 'public', 'index', 'galleries');

};