gulpfile coffee, less, compile, watch + clean&build

gulpfile.coffee

gulp = require 'gulp'
runSequence = require 'run-sequence'
gutil = require 'gulp-util'
coffee = require 'gulp-coffee'
coffeelint = require 'gulp-coffeelint'
less = require 'gulp-less'
clean = require 'gulp-clean'
uglify = require 'gulp-uglify'
concat = require 'gulp-concat'
minifyCSS = require 'gulp-minify-css'

# config
build= 
  client: 'build'
  server: 'lib'

src=
  client: 'src/client/**/*.coffee'
  server: 'src/server/**/*.coffee'

dist=
  client: 'build/js'
  css:    'build/css'
  server: 'lib'



# this will run in THIS ORDER
# build-clean
# copy tasks cpy* will run in parallel
# compile task compile* will run in parallel
gulp.task "build", (callback) ->
  runSequence "build-clean", [
    "cpyrequire"
    "cpytemplates"
    "cpyfonts"
    "cpycomponents"
    "cpyless_fa"
    "cpyless_bssocial"
    "cpyless_bs"
  ], [
    "compile-less"
    "compile-coffee-client"
    "compile-coffee-server"
  ], callback
  return


# CLEAN TASK 
# delete build folders for client and server projects
gulp.task "build-clean",  ->
  gulp.src [build.client, build.server], read: false
    .pipe clean()



# COPY TASKS
gulp.task 'cpyrequire', ->
  gulp.src 'bower_components/requirejs/require.js'  
    .pipe uglify()
    .pipe gulp.dest 'build/js'

gulp.task 'cpytemplates', ->
  #templates
  gulp.src 'src/client/**/*.htm'
    .pipe gulp.dest 'build/js/'

gulp.task 'cpyfonts', ->
  #fonts
  gulp.src ['bower_components/bootstrap/dist/fonts/**','bower_components/font-awesome/fonts/**' ]
    .pipe gulp.dest 'build/fonts/'

gulp.task 'cpycomponents', ->
  #all client dependencies
  gulp.src 'bower_components/**/*'
    .pipe gulp.dest 'build/bower_components/'


# COPY LESS libs to src/client/less for proper @imports in main.less
gulp.task 'cpyless_fa', ->
  gulp.src 'bower_components/font-awesome/less/*.less'
    .pipe gulp.dest 'src/client/less/font-awesome'

gulp.task 'cpyless_bssocial', ->
  gulp.src 'bower_components/bootstrap-social/bootstrap-social.less'
    .pipe gulp.dest 'src/client/less/bootstrap-social'

gulp.task 'cpyless_bs', ->
  gulp.src 'bower_components/bootstrap/less/*.less'
    .pipe gulp.dest 'src/client/less/bootstrap'


# COMPILE TASKS
#less to css + minifyCSS
gulp.task 'compile-less', ->
  gulp.src 'src/client/less/main.less'  
    .pipe less()
    .pipe minifyCSS()
    .pipe gulp.dest 'build/css'

gulp.task 'compile-coffee-server', ->
  # bare true for server/nodejs modules
  gulp.src src.server
    .pipe coffee bare: true
    .pipe uglify()
    .on 'error', gutil.log
    .pipe gulp.dest dist.server

gulp.task 'compile-coffee-client', ->
  # bare false for AMD client modules wraps modules
  gulp.src src.client
    .pipe coffee bare: false  # wrap js modules
    .on 'error', gutil.log
    .pipe gulp.dest dist.client

gulp.task 'coffee-lint', ->
  #gutil.log "=> linting COFFEE source"
  gulp.src [src.client, src.server]
    .pipe coffeelint()


    
# Define the default task as a sequence of the above tasks
gulp.task "default", ['build'], ->
  gutil.log "=> WATCHING..."
  watcher = gulp.watch(src.client, ['compile-coffee-client'])
  watcher.on 'change', (event) ->
    console.log "File: " + event.path + ": " + event.type + "=>COFFEE cli"

  swatcher = gulp.watch(src.server, ['compile-compile-server'])
  swatcher.on 'change', (event) ->
    console.log "File: " + event.path + ": " + event.type + "=>COFFEE srv"

  twatcher = gulp.watch('src/client/**/*.htm', ['cpytemplates'])
  twatcher.on 'change', (event) ->
    console.log "File: " + event.path + ": " + event.type + "=>CPY tmpl"

  lwatcher = gulp.watch('src/client/less/**/*.less', ['compile-less'])
  lwatcher.on 'change', (event) ->
    console.log "File: " + event.path + ": " + event.type + "=>COMPILE LESS"

gulpfile.js

require('coffee-script/register');
require('./gulpfile.coffee');