Example:
var gulp = require('gulp');
var sass = require('gulp-sass');
gulp.task('sass', function() {
gulp.src('**/*.{scss,sass}')
.pipe(sass({
sourceComments: true,
outputStyle: 'expanded',
errLogToConsole: true
}))
.pipe(gulp.dest('screen.css'));
});
gulp.task('watch', ['sass'], function() {
var sassWatcher = gulp.watch('**/*.{scss,sass}', ['sass']);
});
When I call gulp sass it generates source comments, as expected. But when I run gulp watch no source comments get generated.