Docserver overhaul: Gitiles away from me.

chrome/common/extensions/docs/server2/gcs_file_system_provider.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import os
 import environment
+import logging
 
 from caching_file_system import CachingFileSystem
 from empty_dir_file_system import EmptyDirFileSystem
+from environment import IsTest
 from extensions_paths import LOCAL_GCS_DIR, LOCAL_GCS_DEBUG_CONF
+from gcs_file_system import CloudStorageFileSystem
 from local_file_system import LocalFileSystem
-from path_util import IsDirectory, ToDirectory
+from path_util import ToDirectory
+
 
 class CloudStorageFileSystemProvider(object):
   '''Provides CloudStorageFileSystem bound to a GCS bucket.
   '''
   def __init__(self, object_store_creator):
     self._object_store_creator = object_store_creator
 
   def Create(self, bucket):
     '''Creates a CloudStorageFileSystemProvider.
 
     |bucket| is the name of GCS bucket, eg devtools-docs. It is expected
              that this bucket has Read permission for this app in its ACLs.
 
     Optional configuration can be set in a local_debug/gcs_debug.conf file:
       use_local_fs=True|False
-      access_token=<token>
       remote_bucket_prefix=<prefix>
 
     If running in Preview mode or in Development mode with use_local_fs set to
-    True, buckets and files are looked inside the local_debug folder instead
-    of in the real GCS server. Preview server does not support direct GCS
-    access, so it is always forced to use a LocalFileSystem.
+    True, buckets and files are looked for inside the local_debug folder instead
+    of in the real GCS server.
+    '''
+    if IsTest():
+      return EmptyDirFileSystem()
 
-    For real GCS access in the Development mode (dev_appserver.py),
-    access_token and remote_bucket_prefix options can be
-    used to change the way GCS files are accessed. Both are ignored in a real
-    appengine instance.
-
-    "access_token" is always REQUIRED on dev_appengine, otherwise you will
-    get 404 (auth) errors. You can get one access_token valid for a few minutes
-    by typing:
-      gsutil -d ls 2>&1 | grep "Bearer" |
-         sed "s/.*Bearer \(.*\).r.nUser-Agent.*/access_token=\1/" )"
-
-    A sample output would be:
-      access_token=ya29.1.AADtN_VW5ibbfLHV5cMIK5ss4bHtVzBXpa4byjd
-
-    Now add this line to the local_debug/gcs_debug.conf file and restart the
-    appengine development server.
-
-    Remember that you will need a new access_token every ten minutes or
-    so. If you get 404 errors on log, update it. Access token is not
-    used for a deployed appengine app, only if you use dev_appengine.py.
-
-    remote_bucket_prefix is useful if you want to test on your own GCS buckets
-    before using the real GCS buckets.
-
-    '''
-    if not environment.IsReleaseServer() and not environment.IsDevServer():
-      bucket_local_path = os.path.join(LOCAL_GCS_DIR, bucket)
-      if IsDirectory(bucket_local_path):
-        return LocalFileSystem(bucket_local_path)
-      else:
-        return EmptyDirFileSystem()
-
-    debug_access_token = None
     debug_bucket_prefix = None
     use_local_fs = False
-
-    if environment.IsDevServer() and os.path.exists(LOCAL_GCS_DEBUG_CONF):
+    if os.path.exists(LOCAL_GCS_DEBUG_CONF):
       with open(LOCAL_GCS_DEBUG_CONF, "r") as token_file:
         properties = dict(line.strip().split('=', 1) for line in token_file)
       use_local_fs = properties.get('use_local_fs', 'False')=='True'
-      debug_access_token = properties.get('access_token', None)
       debug_bucket_prefix = properties.get('remote_bucket_prefix', None)
+      logging.debug('gcs: prefixing all bucket names with %s' %
+                    debug_bucket_prefix)
 
-    if environment.IsDevServer() and use_local_fs:
+    if use_local_fs:
       return LocalFileSystem(ToDirectory(os.path.join(LOCAL_GCS_DIR, bucket)))
 
-    # gcs_file_system has strong dependencies on runtime appengine APIs,
-    # so we only import it when we are sure we are not on preview.py or tests.
-    from gcs_file_system import CloudStorageFileSystem
-    return CachingFileSystem(CloudStorageFileSystem(bucket,
-        debug_access_token, debug_bucket_prefix),
-        self._object_store_creator)
+    if debug_bucket_prefix:
+      bucket = debug_bucket_prefix + bucket
+
+    return CachingFileSystem(CloudStorageFileSystem(bucket),
+                             self._object_store_creator)
 
   @staticmethod
   def ForEmpty():
     class EmptyImpl(object):
       def Create(self, bucket):
         return EmptyDirFileSystem()
     return EmptyImpl()