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Diffstat (limited to 'dev/lint/global-declarations.js')
-rw-r--r-- | dev/lint/global-declarations.js | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/dev/lint/global-declarations.js b/dev/lint/global-declarations.js deleted file mode 100644 index 648ad368..00000000 --- a/dev/lint/global-declarations.js +++ /dev/null @@ -1,157 +0,0 @@ -/* - * Copyright (C) 2023 Yomitan Authors - * Copyright (C) 2020-2022 Yomichan Authors - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <https://www.gnu.org/licenses/>. - */ - -const fs = require('fs'); -const path = require('path'); -const assert = require('assert'); -const {getAllFiles} = require('../util'); - - -/** - * @param {string} string - * @returns {string} - */ -function escapeRegExp(string) { - return string.replace(/[.*+\-?^${}()|[\]\\]/g, '\\$&'); -} - -/** - * @param {string} string - * @param {RegExp} pattern - * @returns {number} - */ -function countOccurences(string, pattern) { - return (string.match(pattern) || []).length; -} - -/** - * @param {string} string - * @returns {'\r'|'\n'|'\r\n'} - */ -function getNewline(string) { - const count1 = countOccurences(string, /(?:^|[^\r])\n/g); - const count2 = countOccurences(string, /\r\n/g); - const count3 = countOccurences(string, /\r(?:[^\n]|$)/g); - if (count2 > count1) { - return (count3 > count2) ? '\r' : '\r\n'; - } else { - return (count3 > count1) ? '\r' : '\n'; - } -} - -/** - * @param {string} string - * @param {string} substring - * @returns {number} - */ -function getSubstringCount(string, substring) { - let count = 0; - const pattern = new RegExp(`\\b${escapeRegExp(substring)}\\b`, 'g'); - while (true) { - const match = pattern.exec(string); - if (match === null) { break; } - ++count; - } - return count; -} - - -/** - * @param {string} fileName - * @param {boolean} fix - * @returns {boolean} - */ -function validateGlobals(fileName, fix) { - const pattern = /\/\*\s*global\s+([\w\W]*?)\*\//g; - const trimPattern = /^[\s,*]+|[\s,*]+$/g; - const splitPattern = /[\s,*]+/; - const source = fs.readFileSync(fileName, {encoding: 'utf8'}); - let match; - let first = true; - let endIndex = 0; - let newSource = ''; - const allGlobals = []; - const newline = getNewline(source); - while ((match = pattern.exec(source)) !== null) { - if (!first) { - console.error(`Encountered more than one global declaration in ${fileName}`); - return false; - } - first = false; - - const parts = match[1].replace(trimPattern, '').split(splitPattern); - parts.sort(); - - const actual = match[0]; - const expected = `/* global${parts.map((v) => `${newline} * ${v}`).join('')}${newline} */`; - - try { - assert.strictEqual(actual, expected); - } catch (e) { - console.error(`Global declaration error encountered in ${fileName}:`); - console.error(e instanceof Error ? e.message : `${e}`); - if (!fix) { - return false; - } - } - - newSource += source.substring(0, match.index); - newSource += expected; - endIndex = match.index + match[0].length; - - allGlobals.push(...parts); - } - - newSource += source.substring(endIndex); - - // This is an approximate check to see if a global variable is unused. - // If the global appears in a comment, string, or similar, the check will pass. - let errorCount = 0; - for (const global of allGlobals) { - if (getSubstringCount(newSource, global) <= 1) { - console.error(`Global variable ${global} appears to be unused in ${fileName}`); - ++errorCount; - } - } - - if (fix) { - fs.writeFileSync(fileName, newSource, {encoding: 'utf8'}); - } - - return errorCount === 0; -} - - -/** */ -function main() { - const fix = (process.argv.length >= 2 && process.argv[2] === '--fix'); - const directory = path.resolve(__dirname, '..', '..', 'ext'); - const pattern = /\.js$/; - const ignorePattern = /^lib[\\/]/; - const fileNames = getAllFiles(directory, (f) => pattern.test(f) && !ignorePattern.test(f)); - for (const fileName of fileNames) { - if (!validateGlobals(path.join(directory, fileName), fix)) { - process.exit(-1); - return; - } - } - process.exit(0); -} - - -if (require.main === module) { main(); } |