Breaks a gulp stream if a duplicate files (duplicate meaning identical contents) are piped through it. Similar to gulp-dedupe, but intended to be used when the duplicate has to be removed by a human, rather than automatically.
It couldn't be simpler -- just add it to your pipe.
var gulp = require('gulp');
var nodupe = require('nodupe');
gulp.task('breakOnDuplicates', function() {
gulp.src('path/to/*.glob')
.pipe(nodupe())
.pipe(gulp.dest('path/to/dist'));
});
Takes no options.