@jimdo/webpack-stats-diff - npm Package Compare versions

Comparing version 1.0.0 to 1.0.2

src/index.js

package.json

		{
		"name": "@jimdo/webpack-stats-diff",
		"version": "1.0.0",
		"version": "1.0.2",
		"description": "Diffs two webpack stats outputs (e.g. via [stats-webpack-plugin](https://www.npmjs.com/package/stats-webpack-plugin)) and gives back an object with file size changes in a human readable format",
		@@ -5,0 +5,0 @@ "bin": {

webpack-stats-diff.js

		#! /usr/bin/env node
		const path = require('path');
		const jsondiffpatch = require('jsondiffpatch');
		const bytes = require('bytes');

		const differ = require('./src/index.js');

		const baseFile = path.resolve(process.argv.slice(2)[0]);
		@@ -12,74 +13,23 @@ const base = require(baseFile);

		const isExtractTextGarbage = /\.css\..*\.js/;
		const isSourcemap = /\.map$/;
		const threshold = 4000;

		function mapStatsToEntriesWithSize(assets) {
		return assets.reduce((mem, asset) => {
		if (isExtractTextGarbage.test(asset.name)) {
		return mem;
		}

		if (isSourcemap.test(asset.name)) {
		return mem;
		}

		const entryName = asset.chunkNames[0];

		return Object.assign(
		{},
		mem,
		{
		[entryName]: {
		size: asset.size,
		name: asset.name
		}
		}
		);
		function asHumanReadable(diff) {
		return Object.keys(diff).reduce((mem, asset) => {
		mem[asset] = bytes(diff[asset]);
		return mem;
		}, {});
		}

		const resultBase = mapStatsToEntriesWithSize(base.assets);
		const resultChanged = mapStatsToEntriesWithSize(changed.assets);
		function run() {

		const diff = jsondiffpatch.diff(resultBase, resultChanged);
		const result = differ(base, changed);

		if (!diff) {
		return;
		}
		if (Object.keys(result).length === 0) {
		process.stdout.write('\nWebpack Stats Diff: No filesize changes found\n');
		return;
		}

		function diffToFileSizeChange(diff) {
		return Object.keys(diff).reduce((mem, asset) => {
		if (!diff[asset].size) {
		return mem;
		}
		mem[asset] = diff[asset].size.reduce((mem, val, i) => i === 0 ? mem - val : mem + val, 0);

		return mem;
		}, {});
		process.stdout.write('\nWebpack Stats Diff: The following files have a different file size\n');
		process.stdout.write(JSON.stringify(asHumanReadable(result), null, 2));
		process.stdout.write('\n');
		}

		function filterIrrelevant(diff) {
		return Object.keys(diff).reduce((mem, asset) => {
		if (Math.abs(diff[asset]) < threshold) {
		return mem;
		}
		mem[asset] = diff[asset];
		return mem;
		}, {});
		}

		function asHumanReadable(diff) {
		return Object.keys(diff).reduce((mem, asset) => {
		mem[asset] = bytes(diff[asset]);
		return mem;
		}, {});
		}

		process.stdout.write(JSON.stringify(
		asHumanReadable(
		filterIrrelevant(
		diffToFileSizeChange(diff)
		)
		), null, 2
		));
		run();

branch-stats.json

run.sh

stable-stats.json

@jimdo/webpack-stats-diff - npm Package Compare versions

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