1 files changed, 150 insertions, 0 deletions
diff --git a/node_modules/shelljs/src/rm.js b/node_modules/shelljs/src/rm.js
new file mode 100644
index 000000000..595368114
--- /dev/null
+++ b/node_modules/shelljs/src/rm.js
@@ -0,0 +1,150 @@
+var common = require('./common');
+var fs = require('fs');
+
+common.register('rm', _rm, {
+  cmdOptions: {
+    'f': 'force',
+    'r': 'recursive',
+    'R': 'recursive',
+  },
+});
+
+// Recursively removes 'dir'
+// Adapted from https://github.com/ryanmcgrath/wrench-js
+//
+// Copyright (c) 2010 Ryan McGrath
+// Copyright (c) 2012 Artur Adib
+//
+// Licensed under the MIT License
+// http://www.opensource.org/licenses/mit-license.php
+function rmdirSyncRecursive(dir, force) {
+  var files;
+
+  files = fs.readdirSync(dir);
+
+  // Loop through and delete everything in the sub-tree after checking it
+  for (var i = 0; i < files.length; i++) {
+    var file = dir + '/' + files[i];
+    var currFile = fs.lstatSync(file);
+
+    if (currFile.isDirectory()) { // Recursive function back to the beginning
+      rmdirSyncRecursive(file, force);
+    } else { // Assume it's a file - perhaps a try/catch belongs here?
+      if (force || isWriteable(file)) {
+        try {
+          common.unlinkSync(file);
+        } catch (e) {
+          /* istanbul ignore next */
+          common.error('could not remove file (code ' + e.code + '): ' + file, {
+            continue: true,
+          });
+        }
+      }
+    }
+  }
+
+  // Now that we know everything in the sub-tree has been deleted, we can delete the main directory.
+  // Huzzah for the shopkeep.
+
+  var result;
+  try {
+    // Retry on windows, sometimes it takes a little time before all the files in the directory are gone
+    var start = Date.now();
+
+    // TODO: replace this with a finite loop
+    for (;;) {
+      try {
+        result = fs.rmdirSync(dir);
+        if (fs.existsSync(dir)) throw { code: 'EAGAIN' };
+        break;
+      } catch (er) {
+        /* istanbul ignore next */
+        // In addition to error codes, also check if the directory still exists and loop again if true
+        if (process.platform === 'win32' && (er.code === 'ENOTEMPTY' || er.code === 'EBUSY' || er.code === 'EPERM' || er.code === 'EAGAIN')) {
+          if (Date.now() - start > 1000) throw er;
+        } else if (er.code === 'ENOENT') {
+          // Directory did not exist, deletion was successful
+          break;
+        } else {
+          throw er;
+        }
+      }
+    }
+  } catch (e) {
+    common.error('could not remove directory (code ' + e.code + '): ' + dir, { continue: true });
+  }
+
+  return result;
+} // rmdirSyncRecursive
+
+// Hack to determine if file has write permissions for current user
+// Avoids having to check user, group, etc, but it's probably slow
+function isWriteable(file) {
+  var writePermission = true;
+  try {
+    var __fd = fs.openSync(file, 'a');
+    fs.closeSync(__fd);
+  } catch (e) {
+    writePermission = false;
+  }
+
+  return writePermission;
+}
+
+//@
+//@ ### rm([options,] file [, file ...])
+//@ ### rm([options,] file_array)
+//@ Available options:
+//@
+//@ + `-f`: force
+//@ + `-r, -R`: recursive
+//@
+//@ Examples:
+//@
+//@ ```javascript
+//@ rm('-rf', '/tmp/*');
+//@ rm('some_file.txt', 'another_file.txt');
+//@ rm(['some_file.txt', 'another_file.txt']); // same as above
+//@ ```
+//@
+//@ Removes files.
+function _rm(options, files) {
+  if (!files) common.error('no paths given');
+
+  // Convert to array
+  files = [].slice.call(arguments, 1);
+
+  files.forEach(function (file) {
+    var stats;
+    try {
+      stats = fs.lstatSync(file); // test for existence
+    } catch (e) {
+      // Path does not exist, no force flag given
+      if (!options.force) {
+        common.error('no such file or directory: ' + file, { continue: true });
+      }
+      return; // skip file
+    }
+
+    // If here, path exists
+    if (stats.isFile()) {
+      if (options.force || isWriteable(file)) {
+        // -f was passed, or file is writable, so it can be removed
+        common.unlinkSync(file);
+      } else {
+        common.error('permission denied: ' + file, { continue: true });
+      }
+    } else if (stats.isDirectory()) {
+      if (options.recursive) {
+        // -r was passed, so directory can be removed
+        rmdirSyncRecursive(file, options.force);
+      } else {
+        common.error('path is a directory', { continue: true });
+      }
+    } else if (stats.isSymbolicLink() || stats.isFIFO()) {
+      common.unlinkSync(file);
+    }
+  }); // forEach(file)
+  return '';
+} // rm
+module.exports = _rm;