Input AND output size

[Mark Beech]

Would showing the input AND output size of files be in the scope of the plugin?

I've hacked together the functionality for my dev machine (never written a plugin before), but it is a bit flakey depending on what pipes the files are run through previously, mainly gulp-ruby-sass.

This is where i got to. The main problem when passing through gulp-ruby-sass is that the original file size isn't available

'use strict';
var gutil = require('gulp-util');
var through = require('through2');
var prettyBytes = require('pretty-bytes');

module.exports = function (options) {
    options = options || {};

    var totalSize = 0;
    var totalOriginalSize = 0;

    return through.obj(function (file, enc, cb) {
        if (file.isNull()) {
            this.push(file);
            return cb();
        }

        if (file.isStream()) {
            this.emit('error', new gutil.PluginError('gulp-size', 'Streaming not supported'));
            return cb();
        }

        var size = file.contents.length;
        totalSize += size;

        if(file.stat) {
            var originalSize = file.stat.size;
            totalOriginalSize += originalSize;
        }

        if (options.showFiles === true) {
            if(file.stat) {
                var perc = Math.round(100-(size/originalSize*100)).toFixed(2) + '%';
                gutil.log('gulp-size: ' + gutil.colors.blue(file.relative) + ' ' + prettyBytes(originalSize) + ' -> ' + prettyBytes(size) + ' ' + gutil.colors.green(perc));
            } else {
                gutil.log('gulp-size: ' + gutil.colors.blue(file.relative) + ' ' + prettyBytes(size));
            }
        }

        this.push(file);
        cb();
    }, function (cb) {
        gutil.log('gulp-size: ' + gutil.colors.green('total ') + prettyBytes(totalOriginalSize) + ' -> ' + prettyBytes(totalSize));
        cb();
    });

[Sindre Sorhus]

Not something i want built-in, but you could put the plugin first in the chain and last to show both before and after, though not the difference.

[Sindre Sorhus]

Actually, see https://github.com/ben-eb/gulp-bytediff

[Mark Beech]

@sindresorhus i tested gulp-bytediff earlier, but it seems gul-ruby-sass stops is from working. Not at my dev machine at moment, so can't post the message...will do tomorrow

[Mark Beech]

I've posted the error message on the gulp-bytediff issue tracker as im not sure which plugin is causing the issue...

ben-eb/gulp-bytediff#2