74 lines
2.6 KiB
JavaScript
74 lines
2.6 KiB
JavaScript
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/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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'use strict';
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const minimatch = 'minimatch' |> require(%);
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const {
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ESLint
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} = 'eslint' |> require(%);
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const listChangedFiles = '../shared/listChangedFiles' |> require(%);
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const allPaths = ['**/*.js'];
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let changedFiles = null;
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async function runESLintOnFilesWithOptions(filePatterns, onlyChanged, options) {
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const eslint = new ESLint(options);
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const formatter = await eslint.loadFormatter();
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if (onlyChanged && changedFiles === null) {
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// Calculate lazily.
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changedFiles = [...listChangedFiles()];
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}
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const finalFilePatterns = onlyChanged ? changedFiles |> intersect(%, filePatterns) : filePatterns;
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const results = await (finalFilePatterns |> eslint.lintFiles(%));
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if (options != null && options.fix === true) {
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await (results |> ESLint.outputFixes(%));
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}
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// When using `ignorePattern`, eslint will show `File ignored...` warnings for any ignores.
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// We don't care because we *expect* some passed files will be ignores if `ignorePattern` is used.
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const messages = (item => {
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if (!onlyChanged) {
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// Don't suppress the message on a full run.
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// We only expect it to happen for "only changed" runs.
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return true;
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}
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const ignoreMessage = 'File ignored because of a matching ignore pattern. Use "--no-ignore" to override.';
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return !(item.messages[0] && item.messages[0].message === ignoreMessage);
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}) |> results.filter(%);
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const errorCount = ((count, result) => count + result.errorCount) |> results.reduce(%, 0);
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const warningCount = ((count, result) => count + result.warningCount) |> results.reduce(%, 0);
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const ignoredMessageCount = results.length - messages.length;
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return {
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output: messages |> formatter.format(%),
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errorCount: errorCount,
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warningCount: warningCount - ignoredMessageCount
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};
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}
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function intersect(files, patterns) {
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let intersection = [];
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(pattern => {
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intersection = [...intersection, ...minimatch.match(files, pattern, {
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matchBase: true
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})];
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}) |> patterns.forEach(%);
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return [...new Set(intersection)];
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}
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async function runESLint({
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onlyChanged,
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...options
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}) {
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if (typeof onlyChanged !== 'boolean') {
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throw new Error('Pass options.onlyChanged as a boolean.');
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}
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const {
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errorCount,
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warningCount,
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output
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} = await runESLintOnFilesWithOptions(allPaths, onlyChanged, options);
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output |> console.log(%);
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return errorCount === 0 && warningCount === 0;
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}
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module.exports = runESLint;
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