109 lines
2.4 KiB
JavaScript
109 lines
2.4 KiB
JavaScript
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import process from 'node:process';
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import fs from 'node:fs';
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import path from 'node:path';
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import fastGlob from 'fast-glob';
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import gitIgnore from 'ignore';
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import slash from 'slash';
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import toPath from './to-path.js';
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const DEFAULT_IGNORE = [
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'**/node_modules/**',
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'**/flow-typed/**',
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'**/coverage/**',
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'**/.git',
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];
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const mapGitIgnorePatternTo = base => ignore => {
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if (ignore.startsWith('!')) {
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return '!' + path.posix.join(base, ignore.slice(1));
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}
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return path.posix.join(base, ignore);
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};
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const parseGitIgnore = (content, options) => {
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const base = slash(path.relative(options.cwd, path.dirname(options.fileName)));
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return content
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.split(/\r?\n/)
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.filter(Boolean)
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.filter(line => !line.startsWith('#'))
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.map(mapGitIgnorePatternTo(base));
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};
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const reduceIgnore = files => {
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const ignores = gitIgnore();
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for (const file of files) {
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ignores.add(parseGitIgnore(file.content, {
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cwd: file.cwd,
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fileName: file.filePath,
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}));
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}
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return ignores;
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};
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const ensureAbsolutePathForCwd = (cwd, p) => {
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cwd = slash(cwd);
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if (path.isAbsolute(p)) {
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if (slash(p).startsWith(cwd)) {
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return p;
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}
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throw new Error(`Path ${p} is not in cwd ${cwd}`);
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}
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return path.join(cwd, p);
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};
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const getIsIgnoredPredicate = (ignores, cwd) => p => ignores.ignores(slash(path.relative(cwd, ensureAbsolutePathForCwd(cwd, toPath(p.path || p)))));
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const getFile = async (file, cwd) => {
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const filePath = path.join(cwd, file);
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const content = await fs.promises.readFile(filePath, 'utf8');
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return {
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cwd,
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filePath,
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content,
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};
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};
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const getFileSync = (file, cwd) => {
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const filePath = path.join(cwd, file);
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const content = fs.readFileSync(filePath, 'utf8');
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return {
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cwd,
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filePath,
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content,
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};
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};
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const normalizeOptions = ({
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ignore = [],
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cwd = slash(process.cwd()),
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} = {}) => ({ignore: [...DEFAULT_IGNORE, ...ignore], cwd: toPath(cwd)});
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export const isGitIgnored = async options => {
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options = normalizeOptions(options);
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const paths = await fastGlob('**/.gitignore', options);
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const files = await Promise.all(paths.map(file => getFile(file, options.cwd)));
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const ignores = reduceIgnore(files);
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return getIsIgnoredPredicate(ignores, options.cwd);
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};
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export const isGitIgnoredSync = options => {
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options = normalizeOptions(options);
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const paths = fastGlob.sync('**/.gitignore', options);
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const files = paths.map(file => getFileSync(file, options.cwd));
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const ignores = reduceIgnore(files);
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return getIsIgnoredPredicate(ignores, options.cwd);
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};
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