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qwen/nodejs/node_modules/jest-haste-map/build/crawlers/node.js

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+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.nodeCrawl = nodeCrawl;
+function _child_process() {
+  const data = require('child_process');
+  _child_process = function () {
+    return data;
+  };
+  return data;
+}
+function path() {
+  const data = _interopRequireWildcard(require('path'));
+  path = function () {
+    return data;
+  };
+  return data;
+}
+function fs() {
+  const data = _interopRequireWildcard(require('graceful-fs'));
+  fs = function () {
+    return data;
+  };
+  return data;
+}
+var _constants = _interopRequireDefault(require('../constants'));
+var fastPath = _interopRequireWildcard(require('../lib/fast_path'));
+function _interopRequireDefault(obj) {
+  return obj && obj.__esModule ? obj : {default: obj};
+}
+function _getRequireWildcardCache(nodeInterop) {
+  if (typeof WeakMap !== 'function') return null;
+  var cacheBabelInterop = new WeakMap();
+  var cacheNodeInterop = new WeakMap();
+  return (_getRequireWildcardCache = function (nodeInterop) {
+    return nodeInterop ? cacheNodeInterop : cacheBabelInterop;
+  })(nodeInterop);
+}
+function _interopRequireWildcard(obj, nodeInterop) {
+  if (!nodeInterop && obj && obj.__esModule) {
+    return obj;
+  }
+  if (obj === null || (typeof obj !== 'object' && typeof obj !== 'function')) {
+    return {default: obj};
+  }
+  var cache = _getRequireWildcardCache(nodeInterop);
+  if (cache && cache.has(obj)) {
+    return cache.get(obj);
+  }
+  var newObj = {};
+  var hasPropertyDescriptor =
+    Object.defineProperty && Object.getOwnPropertyDescriptor;
+  for (var key in obj) {
+    if (key !== 'default' && Object.prototype.hasOwnProperty.call(obj, key)) {
+      var desc = hasPropertyDescriptor
+        ? Object.getOwnPropertyDescriptor(obj, key)
+        : null;
+      if (desc && (desc.get || desc.set)) {
+        Object.defineProperty(newObj, key, desc);
+      } else {
+        newObj[key] = obj[key];
+      }
+    }
+  }
+  newObj.default = obj;
+  if (cache) {
+    cache.set(obj, newObj);
+  }
+  return newObj;
+}
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+async function hasNativeFindSupport(forceNodeFilesystemAPI) {
+  if (forceNodeFilesystemAPI) {
+    return false;
+  }
+  try {
+    return await new Promise(resolve => {
+      // Check the find binary supports the non-POSIX -iname parameter wrapped in parens.
+      const args = [
+        '.',
+        '-type',
+        'f',
+        '(',
+        '-iname',
+        '*.ts',
+        '-o',
+        '-iname',
+        '*.js',
+        ')'
+      ];
+      const child = (0, _child_process().spawn)('find', args, {
+        cwd: __dirname
+      });
+      child.on('error', () => {
+        resolve(false);
+      });
+      child.on('exit', code => {
+        resolve(code === 0);
+      });
+    });
+  } catch {
+    return false;
+  }
+}
+function find(roots, extensions, ignore, enableSymlinks, callback) {
+  const result = [];
+  let activeCalls = 0;
+  function search(directory) {
+    activeCalls++;
+    fs().readdir(
+      directory,
+      {
+        withFileTypes: true
+      },
+      (err, entries) => {
+        activeCalls--;
+        if (err) {
+          if (activeCalls === 0) {
+            callback(result);
+          }
+          return;
+        }
+        entries.forEach(entry => {
+          const file = path().join(directory, entry.name);
+          if (ignore(file)) {
+            return;
+          }
+          if (entry.isSymbolicLink()) {
+            return;
+          }
+          if (entry.isDirectory()) {
+            search(file);
+            return;
+          }
+          activeCalls++;
+          const stat = enableSymlinks ? fs().stat : fs().lstat;
+          stat(file, (err, stat) => {
+            activeCalls--;
+
+            // This logic is unnecessary for node > v10.10, but leaving it in
+            // since we need it for backwards-compatibility still.
+            if (!err && stat && !stat.isSymbolicLink()) {
+              if (stat.isDirectory()) {
+                search(file);
+              } else {
+                const ext = path().extname(file).substr(1);
+                if (extensions.indexOf(ext) !== -1) {
+                  result.push([file, stat.mtime.getTime(), stat.size]);
+                }
+              }
+            }
+            if (activeCalls === 0) {
+              callback(result);
+            }
+          });
+        });
+        if (activeCalls === 0) {
+          callback(result);
+        }
+      }
+    );
+  }
+  if (roots.length > 0) {
+    roots.forEach(search);
+  } else {
+    callback(result);
+  }
+}
+function findNative(roots, extensions, ignore, enableSymlinks, callback) {
+  const args = Array.from(roots);
+  if (enableSymlinks) {
+    args.push('(', '-type', 'f', '-o', '-type', 'l', ')');
+  } else {
+    args.push('-type', 'f');
+  }
+  if (extensions.length) {
+    args.push('(');
+  }
+  extensions.forEach((ext, index) => {
+    if (index) {
+      args.push('-o');
+    }
+    args.push('-iname');
+    args.push(`*.${ext}`);
+  });
+  if (extensions.length) {
+    args.push(')');
+  }
+  const child = (0, _child_process().spawn)('find', args);
+  let stdout = '';
+  if (child.stdout === null) {
+    throw new Error(
+      'stdout is null - this should never happen. Please open up an issue at https://github.com/jestjs/jest'
+    );
+  }
+  child.stdout.setEncoding('utf-8');
+  child.stdout.on('data', data => (stdout += data));
+  child.stdout.on('close', () => {
+    const lines = stdout
+      .trim()
+      .split('\n')
+      .filter(x => !ignore(x));
+    const result = [];
+    let count = lines.length;
+    if (!count) {
+      callback([]);
+    } else {
+      lines.forEach(path => {
+        fs().stat(path, (err, stat) => {
+          // Filter out symlinks that describe directories
+          if (!err && stat && !stat.isDirectory()) {
+            result.push([path, stat.mtime.getTime(), stat.size]);
+          }
+          if (--count === 0) {
+            callback(result);
+          }
+        });
+      });
+    }
+  });
+}
+async function nodeCrawl(options) {
+  const {
+    data,
+    extensions,
+    forceNodeFilesystemAPI,
+    ignore,
+    rootDir,
+    enableSymlinks,
+    roots
+  } = options;
+  const useNativeFind = await hasNativeFindSupport(forceNodeFilesystemAPI);
+  return new Promise(resolve => {
+    const callback = list => {
+      const files = new Map();
+      const removedFiles = new Map(data.files);
+      list.forEach(fileData => {
+        const [filePath, mtime, size] = fileData;
+        const relativeFilePath = fastPath.relative(rootDir, filePath);
+        const existingFile = data.files.get(relativeFilePath);
+        if (existingFile && existingFile[_constants.default.MTIME] === mtime) {
+          files.set(relativeFilePath, existingFile);
+        } else {
+          // See ../constants.js; SHA-1 will always be null and fulfilled later.
+          files.set(relativeFilePath, ['', mtime, size, 0, '', null]);
+        }
+        removedFiles.delete(relativeFilePath);
+      });
+      data.files = files;
+      resolve({
+        hasteMap: data,
+        removedFiles
+      });
+    };
+    if (useNativeFind) {
+      findNative(roots, extensions, ignore, enableSymlinks, callback);
+    } else {
+      find(roots, extensions, ignore, enableSymlinks, callback);
+    }
+  });
+}