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extract generic build functions to react-dev-utils (facebook#1726)
* Temp rename * Rename to change the case * extract generic build functions to react-dev-utils * tweak package json files and move removeFileNameHash * revert removeFileNameHash * use paths.appBuild in printFileSizes * use paths.appBuild in removeFileNameHash * change curried functions to regular functions * add fs-extra to react-dev-utils deps * move getDifferenceLabel inside printFileSizes * inline copyPublicFolder * combine printFileSizes and removeFileNameHash to fileSizeReporter * fix typo * Tweak APIs and fix issues * Fix heading * Remove missing file * Newline * Newline * Trailing space * Update FileSizeReporter.js * Update build.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,109 @@ | ||
| /** | ||
| * Copyright (c) 2015-present, Facebook, Inc. | ||
| * All rights reserved. | ||
| * | ||
| * This source code is licensed under the BSD-style license found in the | ||
| * LICENSE file in the root directory of this source tree. An additional grant | ||
| * of patent rights can be found in the PATENTS file in the same directory. | ||
| */ | ||
|
|
||
| 'use strict'; | ||
|
|
||
| var fs = require('fs'); | ||
| var path = require('path'); | ||
| var chalk = require('chalk'); | ||
| var filesize = require('filesize'); | ||
| var recursive = require('recursive-readdir'); | ||
| var stripAnsi = require('strip-ansi'); | ||
| var gzipSize = require('gzip-size').sync; | ||
|
|
||
| // Prints a detailed summary of build files. | ||
| function printFileSizesAfterBuild(webpackStats, previousSizeMap) { | ||
| var root = previousSizeMap.root; | ||
| var sizes = previousSizeMap.sizes; | ||
| var assets = webpackStats | ||
| .toJson() | ||
| .assets.filter(asset => /\.(js|css)$/.test(asset.name)) | ||
| .map(asset => { | ||
| var fileContents = fs.readFileSync(path.join(root, asset.name)); | ||
| var size = gzipSize(fileContents); | ||
| var previousSize = sizes[removeFileNameHash(root, asset.name)]; | ||
| var difference = getDifferenceLabel(size, previousSize); | ||
| return { | ||
| folder: path.join('build', path.dirname(asset.name)), | ||
| name: path.basename(asset.name), | ||
| size: size, | ||
| sizeLabel: filesize(size) + (difference ? ' (' + difference + ')' : '') | ||
| }; | ||
| }); | ||
| assets.sort((a, b) => b.size - a.size); | ||
| var longestSizeLabelLength = Math.max.apply( | ||
| null, | ||
| assets.map(a => stripAnsi(a.sizeLabel).length) | ||
| ); | ||
| assets.forEach(asset => { | ||
| var sizeLabel = asset.sizeLabel; | ||
| var sizeLength = stripAnsi(sizeLabel).length; | ||
| if (sizeLength < longestSizeLabelLength) { | ||
| var rightPadding = ' '.repeat(longestSizeLabelLength - sizeLength); | ||
| sizeLabel += rightPadding; | ||
| } | ||
| console.log( | ||
| ' ' + | ||
| sizeLabel + | ||
| ' ' + | ||
| chalk.dim(asset.folder + path.sep) + | ||
| chalk.cyan(asset.name) | ||
| ); | ||
| }); | ||
| } | ||
|
|
||
| function removeFileNameHash(buildFolder, fileName) { | ||
| return fileName | ||
| .replace(buildFolder, '') | ||
| .replace(/\/?(.*)(\.\w+)(\.js|\.css)/, (match, p1, p2, p3) => p1 + p3); | ||
| } | ||
|
|
||
| // Input: 1024, 2048 | ||
| // Output: "(+1 KB)" | ||
| function getDifferenceLabel(currentSize, previousSize) { | ||
| var FIFTY_KILOBYTES = 1024 * 50; | ||
| var difference = currentSize - previousSize; | ||
| var fileSize = !Number.isNaN(difference) ? filesize(difference) : 0; | ||
| if (difference >= FIFTY_KILOBYTES) { | ||
| return chalk.red('+' + fileSize); | ||
| } else if (difference < FIFTY_KILOBYTES && difference > 0) { | ||
| return chalk.yellow('+' + fileSize); | ||
| } else if (difference < 0) { | ||
| return chalk.green(fileSize); | ||
| } else { | ||
| return ''; | ||
| } | ||
| } | ||
|
|
||
| function measureFileSizesBeforeBuild(buildFolder) { | ||
| return new Promise(resolve => { | ||
| recursive(buildFolder, (err, fileNames) => { | ||
| var sizes; | ||
| if (!err && fileNames) { | ||
| sizes = fileNames | ||
| .filter(fileName => /\.(js|css)$/.test(fileName)) | ||
| .reduce((memo, fileName) => { | ||
| var contents = fs.readFileSync(fileName); | ||
| var key = removeFileNameHash(buildFolder, fileName); | ||
| memo[key] = gzipSize(contents); | ||
| return memo; | ||
| }, {}); | ||
| } | ||
| resolve({ | ||
| root: buildFolder, | ||
| sizes: sizes || {}, | ||
| }); | ||
| }); | ||
| }); | ||
| } | ||
|
|
||
| module.exports = { | ||
| measureFileSizesBeforeBuild: measureFileSizesBeforeBuild, | ||
| printFileSizesAfterBuild: printFileSizesAfterBuild, | ||
| }; |
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