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Replace old extract-errors script with new one
Deletes the old extract-errors in favor of extract-errors2
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,105 +1,74 @@ | ||
| /** | ||
| * Copyright (c) Facebook, Inc. and its affiliates. | ||
| * | ||
| * This source code is licensed under the MIT license found in the | ||
| * LICENSE file in the root directory of this source tree. | ||
| */ | ||
| 'use strict'; | ||
|
|
||
| const parser = require('@babel/parser'); | ||
| const fs = require('fs'); | ||
| const path = require('path'); | ||
| const traverse = require('@babel/traverse').default; | ||
| const {evalStringConcat} = require('../shared/evalToString'); | ||
| const invertObject = require('./invertObject'); | ||
| const {execSync} = require('child_process'); | ||
|
|
||
| const babylonOptions = { | ||
| sourceType: 'module', | ||
| // As a parser, babylon has its own options and we can't directly | ||
| // import/require a babel preset. It should be kept **the same** as | ||
| // the `babel-plugin-syntax-*` ones specified in | ||
| // https://github.com/facebook/fbjs/blob/master/packages/babel-preset-fbjs/configure.js | ||
| plugins: [ | ||
| 'classProperties', | ||
| 'flow', | ||
| 'jsx', | ||
| 'trailingFunctionCommas', | ||
| 'objectRestSpread', | ||
| ], | ||
| }; | ||
|
|
||
| module.exports = function(opts) { | ||
| if (!opts || !('errorMapFilePath' in opts)) { | ||
| throw new Error( | ||
| 'Missing options. Ensure you pass an object with `errorMapFilePath`.' | ||
| ); | ||
| async function main() { | ||
| const originalJSON = JSON.parse( | ||
| fs.readFileSync(path.resolve(__dirname, '../error-codes/codes.json')) | ||
| ); | ||
| const existingMessages = new Set(); | ||
| const codes = Object.keys(originalJSON); | ||
| let nextCode = 0; | ||
| for (let i = 0; i < codes.length; i++) { | ||
| const codeStr = codes[i]; | ||
| const message = originalJSON[codeStr]; | ||
| const code = parseInt(codeStr, 10); | ||
| existingMessages.add(message); | ||
| if (code >= nextCode) { | ||
| nextCode = code + 1; | ||
| } | ||
| } | ||
|
|
||
| const errorMapFilePath = opts.errorMapFilePath; | ||
| let existingErrorMap; | ||
| console.log('Searching `build` directory for unminified errors...\n'); | ||
|
|
||
| let out; | ||
| try { | ||
| // Using `fs.readFileSync` instead of `require` here, because `require()` | ||
| // calls are cached, and the cache map is not properly invalidated after | ||
| // file changes. | ||
| existingErrorMap = JSON.parse( | ||
| fs.readFileSync( | ||
| path.join(__dirname, path.basename(errorMapFilePath)), | ||
| 'utf8' | ||
| ) | ||
| ); | ||
| out = execSync( | ||
| "git --no-pager grep -n --untracked --no-exclude-standard '/*! <expected-error-format>' -- build" | ||
| ).toString(); | ||
| } catch (e) { | ||
| existingErrorMap = {}; | ||
| } | ||
|
|
||
| const allErrorIDs = Object.keys(existingErrorMap); | ||
| let currentID; | ||
|
|
||
| if (allErrorIDs.length === 0) { | ||
| // Map is empty | ||
| currentID = 0; | ||
| } else { | ||
| currentID = Math.max.apply(null, allErrorIDs) + 1; | ||
| if (e.status === 1 && e.stdout.toString() === '') { | ||
| // No unminified errors found. | ||
| return; | ||
| } | ||
| throw e; | ||
| } | ||
|
|
||
| // Here we invert the map object in memory for faster error code lookup | ||
| existingErrorMap = invertObject(existingErrorMap); | ||
|
|
||
| function transform(source) { | ||
| const ast = parser.parse(source, babylonOptions); | ||
|
|
||
| traverse(ast, { | ||
| CallExpression: { | ||
| exit(astPath) { | ||
| if (astPath.get('callee').isIdentifier({name: 'invariant'})) { | ||
| const node = astPath.node; | ||
| let newJSON = null; | ||
| const regex = /\<expected-error-format\>"(.+?)"\<\/expected-error-format\>/g; | ||
| do { | ||
| const match = regex.exec(out); | ||
| if (match === null) { | ||
| break; | ||
| } else { | ||
| const message = match[1].trim(); | ||
| if (existingMessages.has(message)) { | ||
| // This probably means you ran the script twice. | ||
| continue; | ||
| } | ||
| existingMessages.add(message); | ||
|
|
||
| // error messages can be concatenated (`+`) at runtime, so here's a | ||
| // trivial partial evaluator that interprets the literal value | ||
| const errorMsgLiteral = evalStringConcat(node.arguments[1]); | ||
| addToErrorMap(errorMsgLiteral); | ||
| } | ||
| }, | ||
| }, | ||
| }); | ||
| } | ||
|
|
||
| function addToErrorMap(errorMsgLiteral) { | ||
| if (existingErrorMap.hasOwnProperty(errorMsgLiteral)) { | ||
| return; | ||
| // Add to json map | ||
| if (newJSON === null) { | ||
| newJSON = Object.assign({}, originalJSON); | ||
| } | ||
| console.log(`"${nextCode}": "${message}"`); | ||
| newJSON[nextCode] = message; | ||
| nextCode += 1; | ||
| } | ||
| existingErrorMap[errorMsgLiteral] = '' + currentID++; | ||
| } | ||
| } while (true); | ||
|
|
||
| function flush(cb) { | ||
| if (newJSON) { | ||
| fs.writeFileSync( | ||
| errorMapFilePath, | ||
| JSON.stringify(invertObject(existingErrorMap), null, 2) + '\n', | ||
| 'utf-8' | ||
| path.resolve(__dirname, '../error-codes/codes.json'), | ||
| JSON.stringify(newJSON, null, 2) | ||
| ); | ||
| } | ||
| } | ||
|
|
||
| return function extractErrors(source) { | ||
| transform(source); | ||
| flush(); | ||
| }; | ||
| }; | ||
| main().catch(error => { | ||
| console.error(error); | ||
| process.exit(1); | ||
| }); |
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