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author | Minteck <contact@minteck.org> | 2022-06-04 08:51:01 +0200 |
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committer | Minteck <contact@minteck.org> | 2022-06-04 08:51:01 +0200 |
commit | 383285ecd5292bf9a825e05904955b937de84cc9 (patch) | |
tree | 0a53b6f02c1604b078044567c03dc1b6c944c8c2 /node_modules/readdirp/index.js | |
download | equestriadb-383285ecd5292bf9a825e05904955b937de84cc9.tar.gz equestriadb-383285ecd5292bf9a825e05904955b937de84cc9.tar.bz2 equestriadb-383285ecd5292bf9a825e05904955b937de84cc9.zip |
Initial commit
Diffstat (limited to 'node_modules/readdirp/index.js')
-rw-r--r-- | node_modules/readdirp/index.js | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/node_modules/readdirp/index.js b/node_modules/readdirp/index.js new file mode 100644 index 0000000..cf739b2 --- /dev/null +++ b/node_modules/readdirp/index.js @@ -0,0 +1,287 @@ +'use strict'; + +const fs = require('fs'); +const { Readable } = require('stream'); +const sysPath = require('path'); +const { promisify } = require('util'); +const picomatch = require('picomatch'); + +const readdir = promisify(fs.readdir); +const stat = promisify(fs.stat); +const lstat = promisify(fs.lstat); +const realpath = promisify(fs.realpath); + +/** + * @typedef {Object} EntryInfo + * @property {String} path + * @property {String} fullPath + * @property {fs.Stats=} stats + * @property {fs.Dirent=} dirent + * @property {String} basename + */ + +const BANG = '!'; +const RECURSIVE_ERROR_CODE = 'READDIRP_RECURSIVE_ERROR'; +const NORMAL_FLOW_ERRORS = new Set(['ENOENT', 'EPERM', 'EACCES', 'ELOOP', RECURSIVE_ERROR_CODE]); +const FILE_TYPE = 'files'; +const DIR_TYPE = 'directories'; +const FILE_DIR_TYPE = 'files_directories'; +const EVERYTHING_TYPE = 'all'; +const ALL_TYPES = [FILE_TYPE, DIR_TYPE, FILE_DIR_TYPE, EVERYTHING_TYPE]; + +const isNormalFlowError = error => NORMAL_FLOW_ERRORS.has(error.code); +const [maj, min] = process.versions.node.split('.').slice(0, 2).map(n => Number.parseInt(n, 10)); +const wantBigintFsStats = process.platform === 'win32' && (maj > 10 || (maj === 10 && min >= 5)); + +const normalizeFilter = filter => { + if (filter === undefined) return; + if (typeof filter === 'function') return filter; + + if (typeof filter === 'string') { + const glob = picomatch(filter.trim()); + return entry => glob(entry.basename); + } + + if (Array.isArray(filter)) { + const positive = []; + const negative = []; + for (const item of filter) { + const trimmed = item.trim(); + if (trimmed.charAt(0) === BANG) { + negative.push(picomatch(trimmed.slice(1))); + } else { + positive.push(picomatch(trimmed)); + } + } + + if (negative.length > 0) { + if (positive.length > 0) { + return entry => + positive.some(f => f(entry.basename)) && !negative.some(f => f(entry.basename)); + } + return entry => !negative.some(f => f(entry.basename)); + } + return entry => positive.some(f => f(entry.basename)); + } +}; + +class ReaddirpStream extends Readable { + static get defaultOptions() { + return { + root: '.', + /* eslint-disable no-unused-vars */ + fileFilter: (path) => true, + directoryFilter: (path) => true, + /* eslint-enable no-unused-vars */ + type: FILE_TYPE, + lstat: false, + depth: 2147483648, + alwaysStat: false + }; + } + + constructor(options = {}) { + super({ + objectMode: true, + autoDestroy: true, + highWaterMark: options.highWaterMark || 4096 + }); + const opts = { ...ReaddirpStream.defaultOptions, ...options }; + const { root, type } = opts; + + this._fileFilter = normalizeFilter(opts.fileFilter); + this._directoryFilter = normalizeFilter(opts.directoryFilter); + + const statMethod = opts.lstat ? lstat : stat; + // Use bigint stats if it's windows and stat() supports options (node 10+). + if (wantBigintFsStats) { + this._stat = path => statMethod(path, { bigint: true }); + } else { + this._stat = statMethod; + } + + this._maxDepth = opts.depth; + this._wantsDir = [DIR_TYPE, FILE_DIR_TYPE, EVERYTHING_TYPE].includes(type); + this._wantsFile = [FILE_TYPE, FILE_DIR_TYPE, EVERYTHING_TYPE].includes(type); + this._wantsEverything = type === EVERYTHING_TYPE; + this._root = sysPath.resolve(root); + this._isDirent = ('Dirent' in fs) && !opts.alwaysStat; + this._statsProp = this._isDirent ? 'dirent' : 'stats'; + this._rdOptions = { encoding: 'utf8', withFileTypes: this._isDirent }; + + // Launch stream with one parent, the root dir. + this.parents = [this._exploreDir(root, 1)]; + this.reading = false; + this.parent = undefined; + } + + async _read(batch) { + if (this.reading) return; + this.reading = true; + + try { + while (!this.destroyed && batch > 0) { + const { path, depth, files = [] } = this.parent || {}; + + if (files.length > 0) { + const slice = files.splice(0, batch).map(dirent => this._formatEntry(dirent, path)); + for (const entry of await Promise.all(slice)) { + if (this.destroyed) return; + + const entryType = await this._getEntryType(entry); + if (entryType === 'directory' && this._directoryFilter(entry)) { + if (depth <= this._maxDepth) { + this.parents.push(this._exploreDir(entry.fullPath, depth + 1)); + } + + if (this._wantsDir) { + this.push(entry); + batch--; + } + } else if ((entryType === 'file' || this._includeAsFile(entry)) && this._fileFilter(entry)) { + if (this._wantsFile) { + this.push(entry); + batch--; + } + } + } + } else { + const parent = this.parents.pop(); + if (!parent) { + this.push(null); + break; + } + this.parent = await parent; + if (this.destroyed) return; + } + } + } catch (error) { + this.destroy(error); + } finally { + this.reading = false; + } + } + + async _exploreDir(path, depth) { + let files; + try { + files = await readdir(path, this._rdOptions); + } catch (error) { + this._onError(error); + } + return { files, depth, path }; + } + + async _formatEntry(dirent, path) { + let entry; + try { + const basename = this._isDirent ? dirent.name : dirent; + const fullPath = sysPath.resolve(sysPath.join(path, basename)); + entry = { path: sysPath.relative(this._root, fullPath), fullPath, basename }; + entry[this._statsProp] = this._isDirent ? dirent : await this._stat(fullPath); + } catch (err) { + this._onError(err); + } + return entry; + } + + _onError(err) { + if (isNormalFlowError(err) && !this.destroyed) { + this.emit('warn', err); + } else { + this.destroy(err); + } + } + + async _getEntryType(entry) { + // entry may be undefined, because a warning or an error were emitted + // and the statsProp is undefined + const stats = entry && entry[this._statsProp]; + if (!stats) { + return; + } + if (stats.isFile()) { + return 'file'; + } + if (stats.isDirectory()) { + return 'directory'; + } + if (stats && stats.isSymbolicLink()) { + const full = entry.fullPath; + try { + const entryRealPath = await realpath(full); + const entryRealPathStats = await lstat(entryRealPath); + if (entryRealPathStats.isFile()) { + return 'file'; + } + if (entryRealPathStats.isDirectory()) { + const len = entryRealPath.length; + if (full.startsWith(entryRealPath) && full.substr(len, 1) === sysPath.sep) { + const recursiveError = new Error( + `Circular symlink detected: "${full}" points to "${entryRealPath}"` + ); + recursiveError.code = RECURSIVE_ERROR_CODE; + return this._onError(recursiveError); + } + return 'directory'; + } + } catch (error) { + this._onError(error); + } + } + } + + _includeAsFile(entry) { + const stats = entry && entry[this._statsProp]; + + return stats && this._wantsEverything && !stats.isDirectory(); + } +} + +/** + * @typedef {Object} ReaddirpArguments + * @property {Function=} fileFilter + * @property {Function=} directoryFilter + * @property {String=} type + * @property {Number=} depth + * @property {String=} root + * @property {Boolean=} lstat + * @property {Boolean=} bigint + */ + +/** + * Main function which ends up calling readdirRec and reads all files and directories in given root recursively. + * @param {String} root Root directory + * @param {ReaddirpArguments=} options Options to specify root (start directory), filters and recursion depth + */ +const readdirp = (root, options = {}) => { + let type = options.entryType || options.type; + if (type === 'both') type = FILE_DIR_TYPE; // backwards-compatibility + if (type) options.type = type; + if (!root) { + throw new Error('readdirp: root argument is required. Usage: readdirp(root, options)'); + } else if (typeof root !== 'string') { + throw new TypeError('readdirp: root argument must be a string. Usage: readdirp(root, options)'); + } else if (type && !ALL_TYPES.includes(type)) { + throw new Error(`readdirp: Invalid type passed. Use one of ${ALL_TYPES.join(', ')}`); + } + + options.root = root; + return new ReaddirpStream(options); +}; + +const readdirpPromise = (root, options = {}) => { + return new Promise((resolve, reject) => { + const files = []; + readdirp(root, options) + .on('data', entry => files.push(entry)) + .on('end', () => resolve(files)) + .on('error', error => reject(error)); + }); +}; + +readdirp.promise = readdirpPromise; +readdirp.ReaddirpStream = ReaddirpStream; +readdirp.default = readdirp; + +module.exports = readdirp; |