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node_modules/readdirp/index.js

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+'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);
+
+/**
+ * @typedef {Object} EntryInfo
+ * @property {String} path
+ * @property {String} fullPath
+ * @property {fs.Stats=} stats
+ * @property {fs.Dirent=} dirent
+ * @property {String} basename
+ */
+
+const BANG = '!';
+const NORMAL_FLOW_ERRORS = new Set(['ENOENT', 'EPERM', 'EACCES', 'ELOOP']);
+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 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 (process.platform === 'win32' && stat.length === 3) {
+      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.
+    try {
+      this.parents = [this._exploreDir(root, 1)];
+    } catch (error) {
+      this.destroy(error);
+    }
+    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._isDirAndMatchesFilter(entry)) {
+              if (depth <= this._maxDepth) {
+                this.parents.push(this._exploreDir(entry.fullPath, depth + 1));
+              }
+
+              if (this._wantsDir) {
+                this.push(entry);
+                batch--;
+              }
+            } else if (this._isFileAndMatchesFilter(entry)) {
+              if (this._wantsFile) {
+                this.push(entry);
+                batch--;
+              }
+            }
+          }
+        } else {
+          const parent = this.parents.pop();
+          if (!parent) {
+            this.push(null);
+            break;
+          }
+          this.parent = await parent;
+        }
+      }
+    } 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) {
+    const basename = this._isDirent ? dirent.name : dirent;
+    const fullPath = sysPath.resolve(sysPath.join(path, basename));
+    const entry = {path: sysPath.relative(this._root, fullPath), fullPath, basename};
+    try {
+      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 {
+      throw err;
+    }
+  }
+
+  _isDirAndMatchesFilter(entry) {
+    // entry may be undefined, because a warning or an error were emitted
+    // and the statsProp is undefined
+    const stats = entry && entry[this._statsProp];
+    return stats && stats.isDirectory() && this._directoryFilter(entry);
+  }
+
+  _isFileAndMatchesFilter(entry) {
+    const stats = entry && entry[this._statsProp];
+    const isFileType = stats && (
+      (this._wantsEverything && !stats.isDirectory()) ||
+      (stats.isFile() || stats.isSymbolicLink())
+    );
+    return isFileType && this._fileFilter(entry);
+  }
+}
+
+/**
+ * @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;