gistfile1.js

var gulp = require('gulp'),
plugins = require('gulp-load-plugins')({lazy:false}),
less = require('gulp-less'),
path = require('path'),
historyApiFallback = require('connect-history-api-fallback'),
inject = require('gulp-inject')
mainBowerFiles = require('main-bower-files')
jshint = require('gulp-jshint');

gulp.task('scripts-dist', ['copy-index-dist'], function() {
    var script_files = ['!./app/**/*_test.js','./app/**/*.js'];
    //combine all js files of the app
    gulp.src(script_files)
    .pipe(plugins.jshint())
    .pipe(plugins.jshint.reporter('default'))
    .pipe(plugins.concat('app.js'))
    .pipe(gulp.dest('./dist'));

    var target = gulp.src('./dist/index.html');
    // It's not necessary to read the files (will speed up things), we're only after their paths:
    var sources = gulp.src(['./dist/app.js'], {read: false});

    return target.pipe(inject(sources)).pipe(gulp.dest('./dist'));
});

gulp.task('jshint', function () {
    var script_files = ['!./app/**/*_test.js','./app/**/*.js'];
    return gulp.src(script_files)
        .pipe(jshint('.jshintrc'))
        .pipe(jshint.reporter('default'));
});

gulp.task('scripts', ['jshint', 'copy-index'], function() {
    var script_files = ['!./app/**/*_test.js','./app/**/*.js'];

    gulp.src(script_files)
        .pipe(gulp.dest('./.tmp/app'));

    var target = gulp.src('./.tmp/index.html');
    // It's not necessary to read the files (will speed up things), we're only after their paths:
    var sources = gulp.src(script_files, {read: false});

    return target.pipe(inject(sources)).pipe(gulp.dest('./.tmp'));
});

gulp.task('templates',function(){
    //combine all template files of the app into a js file
    gulp.src(['!./app/index.html',
        './app/**/*.html'])
        .pipe(plugins.angularTemplatecache('templates.js',{standalone:true}))
        .pipe(gulp.dest('./.tmp'));
});

gulp.task('styles', function () {
    gulp.src(['!./app/styles/**/_*.less', './app/styles/**/*.less'])
        .pipe(less({ paths: [ path.join(__dirname, 'less', 'includes'), path.join(__dirname, 'bower_components', 'bootstrap', 'less') ] }))
        .pipe(gulp.dest('./.tmp'));
});

gulp.task('vendorJS', function(){
    //concatenate vendor JS files
    var files = mainBowerFiles()
        .filter(function (f) { var ext = f.substr(f.length - 3); return ext == '.js'; });
    gulp.src(files)
        .pipe(plugins.concat('lib.js'))
        .pipe(gulp.dest('./.tmp'));
});

gulp.task('fonts', function () {
    gulp.src(['./app/fonts/**'])
    .pipe(gulp.dest('./.tmp/fonts'));
});

gulp.task('fonts-dist', function () {
    gulp.src(['./app/fonts/**'])
    .pipe(gulp.dest('./dist/fonts'));
});

gulp.task('copy-index', function() {
    return gulp.src('./app/index.html')    
        .pipe(gulp.dest('./.tmp'));
});

gulp.task('copy-index-dist', function() {
    gulp.src('./app/index.html')    
    .pipe(gulp.dest('./dist'));
});

gulp.task('watch',function(){
    gulp.watch([
        '.tmp/**/*.html',        
        '.tmp/**/*.js',
        '.tmp/**/*.css'
        ], function(event) {
            return gulp.src(event.path)
            .pipe(plugins.connect.reload());
        });
    gulp.watch(['./app/**/*.js','!./app/**/*test.js'],['scripts', 'copy-index']);
    gulp.watch(['./bower_components/**/*.js','!./app/**/*test.js'],['vendorJS']);
    gulp.watch(['!./app/index.html','./app/**/*.html'],['templates']);
    gulp.watch('./app/**/*.less',['styles']);
    gulp.watch('./app/index.html',['scripts', 'copy-index']);

});

gulp.task('connect', plugins.connect.server({
    root: ['.tmp'],
    port: 8080,
    livereload: true,
    middleware: function(connect, opt) {
        return [ historyApiFallback ];
    }
}));

gulp.task('default',['connect','scripts','templates','styles','fonts','copy-index','vendorJS','watch']);