Why does running Google JavaScript Linter via Grunt fail?

Question

We use gjslinter with Grunt to lint all the js files in our project.

The configuration in Gruntfile.js looks like this:

gjslint: {
    options: {
        flags: ['--disable 220,110,200'],
        reporter: {
            name: 'gjslint_xml',
            dest: '<%= pkg.docs %>/gjslint/gjslint.xml'
        }
    },
    all: {
        src: ['<%= pkg.src %>/assets/js/modules/**', '<%= pkg.src %>/assets/js/lib/jquery/plugins/jquery-hse/**']
    }
}

But when I start the linting it fails:

$ grunt gjslint Running "gjslint:all" (gjslint) task
Warning: Task "gjslint:all" failed. Use --force to continue.

Aborted due to warnings.

Why? Paths should be correct. There are no more error messages or reports. How can I debug this?

score 0 · Accepted Answer · answered Jul 11 '16 at 16:29

I found the solution by following these steps (on Windows 10 here):

Installed Python2.7 https://www.python.org/downloads/
Added Python installation directories C:/Python27 as well as C:/Python27/Scripts to PATH and PYTHONPATH env variables
Installed Google JavaScript Linter by running this in command line:

pip install https://github.com/google/closure-linter/zipball/master
Changed reporter setting for Grunt:

(Gruntfile.js):

reporter: {
    name: 'console' //report to console
}

Now I am getting proper error messages in console when running grunt gjslint. It showed me that there was a min.js file which had some invalid code. So, I removed it from Gruntfile.js by adding an exception for min files:

src: [
  '<%= pkg.src %>/assets/js/modules/**/*.js',
  '<%= pkg.src %>/assets/js/lib/jquery/plugins/jquery-hse/**/*.js',
  '!<%= pkg.src %>/assets/js/**/*.min.js'
]

This fixed the issue!

Why does running Google JavaScript Linter via Grunt fail?

1 Answers1