Warning: Unable to read "undefined" file (Error code: ENOENT) when compiling coffeescript from watch

[tschaub]

First, thank you for putting this plugin together. I spent a good portion of my day trying various approaches to having grunt coffee compile only changed files and then livereloading those changes.

With that being said, I am running into the following error (with verbose output):

Running tasks: newer:coffee:dist

Running "newer:coffee:dist" (newer) task
Files: app/application.coffee -> .tmp/application.js
Files: app/boot.coffee -> .tmp/boot.js
Files: app/bower_components/backbone/test/model.coffee -> .tmp/bower_components/backbone/test/model.js
Files: app/config.coffee -> .tmp/config.js
Files: app/controllers/base/authenticated.coffee -> .tmp/controllers/base/authenticated.js
Files: app/controllers/base/controller.coffee -> .tmp/controllers/base/controller.js
Files: app/controllers/home_controller.coffee -> .tmp/controllers/home_controller.js
Files: app/controllers/session_controller.coffee -> .tmp/controllers/session_controller.js
Files: app/lib/GCS.coffee -> .tmp/lib/GCS.js
Files: app/models/base/grid_model.coffee -> .tmp/models/base/grid_model.js
Files: app/models/connect.coffee -> .tmp/models/connect.js
Files: app/models/user.coffee -> .tmp/models/user.js
Files: app/routes.coffee -> .tmp/routes.js
Files: app/vendor.coffee -> .tmp/vendor.js
Files: app/views/base/view.coffee -> .tmp/views/base/view.js
Files: app/views/home/main.coffee -> .tmp/views/home/main.js
Files: app/views/session/signin.coffee -> .tmp/views/session/signin.js

Running "coffee:dist" (coffee) task
Verifying property coffee.dist exists in config...OK
Files: [no src] -> .tmp/application.js
Files: [no src] -> .tmp/boot.js
Files: [no src] -> .tmp/bower_components/backbone/test/model.js
Files: [no src] -> .tmp/config.js
Files: [no src] -> .tmp/controllers/base/authenticated.js
Files: [no src] -> .tmp/controllers/base/controller.js
Files: [no src] -> .tmp/controllers/home_controller.js
Files: [no src] -> .tmp/controllers/session_controller.js
Files: [no src] -> .tmp/lib/GCS.js
Files: [no src] -> .tmp/models/base/grid_model.js
Files: [no src] -> .tmp/models/connect.js
Files: app/models/user.coffee -> .tmp/models/user.js
Files: [no src] -> .tmp/routes.js
Files: [no src] -> .tmp/vendor.js
Files: [no src] -> .tmp/views/base/view.js
Files: [no src] -> .tmp/views/home/main.js
Files: [no src] -> .tmp/views/session/signin.js
Options: bare, join=false, sourceMap, separator="\n", sourceRoot=""
Reading undefined...ERROR
Warning: Unable to read "undefined" file (Error code: ENOENT). Use --force to continue.

And the relevant portion of my Gruntfile.coffee:

# monitor for changes
  watch:
    coffee:
        files: 'app/**/*.coffee'
        tasks: ['newer:coffee:dist']

Works if I use any-newer but then it is compiling every file. Am I simply misinterpreting the docs?

[roparz]

+1 ;-)

[tschaub]

@tritonrc - can you post the files config for your coffee:dist target?

Here's a complete configuration that works for me:

  grunt.initConfig({
    watch: {
      coffee: {
        files: 'app/**/*.coffee',
        tasks: ['newer:coffee:dist']
      }
    },
    coffee: {
      dist: {
        expand: true,
        src: 'app/**/*.coffee',
        dest: 'dist',
        ext: '.js'
      }
    }
  });

[tritonrc]

Sure thing:

# in lieu of javascript
    coffee:
      options:
        bare: true
        sourceMap: true
        sourceRoot: ''
      dist:
        files: [
          expand: true,
          cwd: 'app'
          src: '**/*.coffee'
          dest: '.tmp'
          ext: '.js'
        ]

The only difference being my use of cwd which is interesting. I am going to try without the cwd

[tschaub]

Ok, it's the sourceMap option. I can reproduce it here (works with false, fails with true). I'll dig into this a bit later. Thanks for the report.

[tschaub]

@tritonrc - the change in 2f34b01 fixes it for me. If you're able to apply the same change to your installed grunt-newer, I'd be interested to hear how it works for you.

If it is easier to test with a release or I don't hear back shortly, I'll cut a new release with this fix.

[tritonrc]

@tschaub -- Worked liked a charm, thank you so much for you quick response and effort.

[tschaub]

Good news. Published as [email protected].