gulpfile.js

var gulp = require('gulp');
var gutil = require('gulp-util');
var bower = require('bower');
var concat = require('gulp-concat');
var sass = require('gulp-sass');
var minifyCss = require('gulp-minify-css');
var rename = require('gulp-rename');
var sh = require('shelljs');
var karma = require('gulp-karma');
var jshint = require('gulp-jshint');

var paths = {
  sass: ['./scss/**/*.scss'],
  js: ['./www/js/**/*.js', './test/spec/**/*.js']
};

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

gulp.task('jshinter', function() {
  gulp.src(paths.js)
      .pipe(jshint('.jshintrc'))
      .pipe(jshint.reporter('jshint-stylish'));
});

gulp.task('sass', function(done) {
  gulp.src('./scss/ionic.app.scss')
    .pipe(sass())
    .pipe(gulp.dest('./www/css/'))
    .pipe(minifyCss({ keepSpecialComments: 0 }))
    .pipe(rename({ extname: '.min.css' }))
    .pipe(gulp.dest('./www/css/'))
    .on('end', done);
});

gulp.task('watch', function() {
  gulp.watch(paths.sass, ['sass']);
  gulp.watch(paths.js, ['jshinter']);
});

gulp.task('install', ['git-check'], function() {
  return bower.commands.install()
    .on('log', function(data) {
      gutil.log('bower', gutil.colors.cyan(data.id), data.message);
    });
});

gulp.task('git-check', function(done) {
  if (!sh.which('git')) {
    console.log(
      '  ' + gutil.colors.red('Git is not installed.'),
      '\n  Git, the version control system, is required to download Ionic.',
      '\n  Download git here:', gutil.colors.cyan('http://git-scm.com/downloads') + '.',
      '\n  Once git is installed, run \'' + gutil.colors.cyan('gulp install') + '\' again.'
    );
    process.exit(1);
  }
  done();
});

gulp.task('test', function() {
  // Be sure to return the stream
  // NOTE: Using the fake './foobar' so as to run the files
  // listed in karma.conf.js INSTEAD of what was passed to
  // gulp.src !
  return gulp.src('./foobar')
    .pipe(karma({
      configFile: 'karma.conf.js',
      action: 'run'
    }))
    .on('error', function(err) {
      // Make sure failed tests cause gulp to exit non-zero
      console.log(err);
      this.emit('end'); //instead of erroring the stream, end it
    });
});
  
gulp.task('autotest', function() {
  return gulp.watch(['www/js/**/*.js', 'test/spec/*.js'], ['test']);
});