gulpfile.js

var _             = require('lodash'),
    concat        = require('gulp-concat'),
    debug         = require('gulp-debug'),
    gulp          = require('gulp'),
    ignore        = require('gulp-ignore'),
    jshint        = require('gulp-jshint'),
    karma         = require('karma').server,
    htmlmin       = require('gulp-htmlmin'),
    includeSource = require('gulp-include-source'),
    minifyCss     = require('gulp-minify-css'),
    minifyHtml    = require('gulp-minify-html'),
    mocha         = require('gulp-mocha'),
    ngtemplates   = require('gulp-ngtemplates'),
    nodemon       = require('gulp-nodemon'),
    rev           = require('gulp-rev'),
    rimraf        = require('gulp-rimraf'),
    sass          = require('gulp-sass'),
    uglify        = require('gulp-uglify'),
    usemin        = require('gulp-usemin');

var paths = {
  scripts: ['app/assets/javascripts/**/*.js'],
  server: {
    index: 'server.js',
    specs: ['test/models/**/*.js', 'test/features/**/*.js']
  },
  karma: {
    config: 'test/support/karma.conf.js'
  },
  clean: ['.tmp', 'build'],
  assets: {
    dest: 'build/assets/',
    vendorDest: 'build/assets/vendor/'
  },
  ngtemplates: {
    build: {
      js: 'build/assets/javascripts/config/template-cache.js'
    }
  }
};

var pkg = require('./package.json')

gulp.task('serve', ['prepare', 'watch'], function() {
  nodemon({script: paths.server.index});
});

gulp.task('clean', function() {
  gulp.src(paths.clean)
    .pipe(ignore('node_modules/**'))
    .pipe(rimraf({ force: true }));
});

gulp.task('includeSource', function() {
 gulp.src('app/views/**/*.html')
  .pipe(includeSource({basePath: paths.assets.dest, baseUrl: '/'}))
  .pipe(gulp.dest('build/views/'));
});

gulp.task('mochaTest', function() {
  gulp.src(paths.server.specs)
    .pipe(mocha({reporter: 'spec'}))
});

gulp.task('karmaTest', function(done) {
  karma.start(_.assign({}, paths.karma.config), done);
});

gulp.task('concat', function() {
  gulp.src(paths.scripts)
    .pipe(concat('build.js'))
    .pipe(gulp.dest('build'))
});

gulp.task('jshint', function() {
  gulp.src(paths.scripts)
    .pipe(jshint())
    .pipe(jshint.reporter('default'))
});

gulp.task('usemin', function() {
  gulp.src('**/*.css')
    .pipe(usemin({
      css: [minifyCss(), 'concat'],
      html: [minifyHtml({empty: true})],
      js: [uglify(), rev()]
    }))
    .pipe(gulp.dest('build'));
});

gulp.task('sass', function() {
  gulp.src('app/assets/stylesheets/*.scss')
    .pipe(sass({
      includePaths: require('node-neat').includePaths
    }))
    .pipe(gulp.dest('build'));
});

gulp.task('compile-templates', function() {
  gulp.src('app/assets/templates/**/*.html')
    .pipe(ngtemplates({module: pkg.name, prefix: '/'}))
    .pipe(gulp.dest(paths.ngtemplates.build.js));
});

gulp.task('copyAssets', function() {
  gulp.src('app/assets/{images,javascripts}/**')
    .pipe(gulp.dest(paths.assets.dest));
});

gulp.task('copyVendor', function() {
  gulp.src('vendor/**')
    .pipe(gulp.dest(paths.assets.vendorDest));
});

gulp.task('copyDist', function() {
  gulp.src([
    'app/**',
    'build/**',
    'config/**',
    'doc/**',
    'server.js',
    'vendor/**'
  ])
    .pipe(gulp.dest('dist/'));
});

gulp.task('copyAll', ['copyAssets', 'copyVendor', 'copyDist']);

gulp.task('prepare', [
  'clean',
  'copyAssets',
  'copyVendor',
  'compile-templates',
  'includeSource',
  'sass'
  ]
);

gulp.task('build', [
  'prepare',
  'jshint',
  'concat',
  'usemin'
  ]
);

gulp.task('watch', function() {
  gulp.watch(paths.scripts, ['build']);
});

gulp.task('test', ['karmaTest', 'mochaTest']);

gulp.task('default', ['build', 'test', 'prepare']);