How can I pass arguments into a gulp task callback?

coffeescript, gulp

Solution

The `coffee` task need not be a gulp task. Just make it a JavaScript function.

gulp       = require 'gulp'
gutil      = require 'gulp-util'
clean      = require 'gulp-clean'
coffee     = require 'gulp-coffee'

gulp.task 'clean', ->
  gulp.src('./lib/*', read: false)
      .pipe clean()

compile = (map) ->
  gutil.log('sourceMap', map)
  gulp.src('./src/*.coffee')
    .pipe coffee({sourceMap: map}).on('error', gutil.log)
    .pipe gulp.dest('./lib/')

# build app
gulp.task 'watch', ->
  gulp.watch './src/*.coffee', =>
    compile(false)

# build app
gulp.task 'build', ['clean'], ->
  compile(true)

# The default task (called when you run `gulp` from cli)
gulp.task 'default', ['clean', 'build', 'watch']

Problem

I am trying to make two tasks, a watch and build task. The watch task calls my 'coffee' task wich compiles my `.coffee` files into javascript. The build task should basically do the same, except that I wanna parse a boolean into the function, so that I can compile the code including source maps. ``` gulp = require 'gulp' gutil = require 'gulp-util' clean = require 'gulp-clean' coffee = require 'gulp-coffee' gulp.task 'clean', -> gulp.src('./lib/*', read: false) .pipe clean() gulp.task 'coffee', (map) -> gutil.log('sourceMap', map) gulp.src('./src/*.coffee') .pipe coffee({sourceMap: map}).on('error', gutil.log) .pipe gulp.dest('./lib/') # build app gulp.task 'watch', -> gulp.watch './src/*.coffee', ['coffee'] # build app gulp.task 'build', -> gulp.tasks.clean.fn() gulp.tasks.coffee.fn(true) # The default task (called when you run `gulp` from cli) gulp.task 'default', ['clean', 'coffee', 'watch'] ``` Does somebody have a solution for my problem? Am I doing something in principle wrong? Thanks in advance.

Original source