gulp-bless

Gulp plugin which splits CSS files suitably for Internet Explorer < 10.

This is the a Gulp wrapper around bless.js (see blesscss.com).

Installation

npm install gulp-bless

Usage

var gulp = require('gulp');
var bless = require('gulp-bless');

gulp.task('css', function() {
    gulp.src('style.css')
        .pipe(bless())
        .pipe(gulp.dest('./splitCSS'));
});

gulp.task('default', ['watch']);

// Rerun the task when a file changes
gulp.task('watch', function () {
  gulp.watch('./css/*.css', ['css']);
});

bless(options).

• imports - A boolean (which defaults to true). Determines whether or not the first chunk / "blessed" file @imports the others.
• cacheBuster - A boolean (which defaults to true). If imports is true, this will add a random query parameter value to prevent against aggressive caching.
• log - A boolean (which defaults to false). Logs a small bit of information about the process.
• suffix - Either a string or a function (which defaults to "-blessed").
  • If it is a string then it will be appended to the original file name before the index. E.g.

    	//Assume you have long.css that is to be splitted into 3 parts, following code will 
    	//produce 3 files: long.css, long-part1.css, long-part2.css    
    	gulp.src('long.css')
    	    .pipe(bless{
    	 		suffix: '-part'
    	    })
    	    .pipe(gulp.dest('./'));
  

  • If it is a function then whatever returned by the function is appended to the original file name. The function takes in a 1-based index E.g.

  	//Assume you have long.css that is to be splitted into 3 parts, following code will 
    	//produce 3 files: long.css, long-functionpart1.css, long-functionpart2.css
    	gulp.src('long.css')
    	    .pipe(bless{
    	 		suffix: function(index) {
    	 			return "-functionpart" + index;
    	 		}
    	    })
    	    .pipe(gulp.dest('./'));

Example:

gulp.src('long.css')
        .pipe(bless({
            imports: false
        }))
        .pipe(gulp.dest('./'))

About minification

You should minify your CSS after it goes through gulp-bless. See BlessCSS/bless#90 as to why.

Does this support sourcemaps?

Yes. This can be used with gulp-sourcemaps.

Team

• Adam Lynch (@adam-lynch) (Creator)
• Alvin Lin (@alvinlin123)