Concat causes issues when the CSS has multi-line comments at the beginning of the file about grunt-contrib-concat

[shama]

Could you post your gruntfile and an example of the issue? Thanks!

[doomsbuster]

Please find the Gist below:
https://gist.github.com/doomsbuster/7475676

[shama]

Looking at your gruntfile it appears you're not using the concat task: https://gist.github.com/doomsbuster/7475676#file-gruntfile-js-L136

My guess is uglify is stripping your comments. Check out https://github.com/gruntjs/grunt-contrib-uglify#preservecomments for preserving comments.

[doomsbuster]

It's removing commenrs and also the first style .maincontainer. I am using con cat task in the concurrent area. Please advise.

Thanks,
Ashish Desai
www.ashishdesai.com

-------- Original message --------
From: Kyle ☱☲☳☴☵☷ ☶ Robinson ☱☲ [email protected]
Date:11/16/2013 12:28 PM (GMT-05:00)
To: gruntjs/grunt-contrib-concat [email protected]
Cc: Ashish Desai [email protected]
Subject: Re: [grunt-contrib-concat] Concat causes issues when the CSS has
multi-line comments at the beginning of the file (#51)

Looking at your gruntfile it appears you're not using the concat task: https://gist.github.com/doomsbuster/7475676#file-gruntfile-js-L136

My guess is uglify is stripping your comments. Check out https://github.com/gruntjs/grunt-contrib-uglify#preservecomments for preserving comments.

—
Reply to this email directly or view it on GitHub.

[shama]

According to the gruntfile you linked, there is no configuration for the concat task. You're using a different task.

[doomsbuster]

Here is the concat task. I have 3 CSS files and they are combined into one, concat task is being used. Also, it is removing the first style class if it begins with comments.
grunt.registerTask('build', [
'clean:dist',
'useminPrepare',
'concurrent:dist',
'autoprefixer',
'concat',
'ngmin',
'copy:dist',
'cdnify',
'cssmin',
'uglify',
'rev',
'usemin'
]);

[shama]

Would you mind running grunt build --verbose and posting the result so I can see where the concat task is being ran? Thanks!

[doomsbuster]

Here are the logs:
https://gist.github.com/doomsbuster/7475676#file-gruntverboselogs

Please let me know if you need more information.

[shama]

Ah ha, you're right. You are using the concat task. I see it on this line: https://gist.github.com/doomsbuster/7475676#file-gruntverboselogs-L1065

I created a reduced example showing that the concat task doesn't naturally strip comments: https://gist.github.com/shama/84e57c994f5a14c3fa01

It appears another task is configuring the concat task for you likely with the stripBanners option set. I recommend configuring the concat task yourself rather than relying on other tasks.

I also recommend reducing the code in your Gruntfile to only the necessary parts for your project. Those Gruntfile generators are usually bloated and confusing because they are trying to handle too many use cases.