Eliminating Redundant Styles in Specific CSS Files with Gulp, When They Already Exist in a Shared CSS File

Question

Eliminating Redundant Styles in Specific CSS Files with Gulp, When They Already Exist in a Shared CSS File

Is there a way to eliminate redundant styles in individual css files that are already defined in a common.css file?

common.css contains the following styles.

.nav {
    background-color: red;
}

home.css includes the following styles.

.nav {
    background-color: red;
}

.home {
    width: 300px;
}

I want to update the home.css using a gulp task to remove the duplicate class .nav (since it is already defined in common.css). After making changes to the home.css file, I expect the following output.

.home {
    width: 300px;
}

I do not want to alter the common.css file. Is there a node package you can recommend for this task?

css gulp purge css-purge

Answer 1

Answer №1

Consider combining and optimizing your CSS files by creating a single 'main' file to improve performance.

Removing duplicate files may not provide significant benefits unless they are used together on the same page.

By merging and minifying your CSS files into a single file, you can reduce the number of blocking calls and speed up page rendering.

To concatenate your CSS files, you can use gulp-concat :

var concat = require('gulp-concat');
 
gulp.task('concat-css', function() {
  return gulp.src('./*.css')
    .pipe(concat('main.css'))
    .pipe(gulp.dest('dist'));
});

To remove duplicates, you can utilize clean-css or gulp-clean-css :

gulp.task('minify-css', () => {
  return gulp.src('dist/*.css')
    .pipe(cleanCSS({removeDuplicateRules: 'true'}))
    .pipe(gulp.dest('dist'));
});

By running concat-css followed by minify-css, you can generate a clean main.css file without any duplicates.

Answer 2

Consider combining and optimizing your CSS files by creating a single 'main' file to improve performance.

Removing duplicate files may not provide significant benefits unless they are used together on the same page.

By merging and minifying your CSS files into a single file, you can reduce the number of blocking calls and speed up page rendering.

To concatenate your CSS files, you can use gulp-concat :

var concat = require('gulp-concat');
 
gulp.task('concat-css', function() {
  return gulp.src('./*.css')
    .pipe(concat('main.css'))
    .pipe(gulp.dest('dist'));
});

To remove duplicates, you can utilize clean-css or gulp-clean-css :

gulp.task('minify-css', () => {
  return gulp.src('dist/*.css')
    .pipe(cleanCSS({removeDuplicateRules: 'true'}))
    .pipe(gulp.dest('dist'));
});

By running concat-css followed by minify-css, you can generate a clean main.css file without any duplicates.

Eliminating Redundant Styles in Specific CSS Files with Gulp, When They Already Exist in a Shared CSS File

Answer №1

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