Index: chrome/common/extensions/docs/server2/features_utility.py |
diff --git a/chrome/common/extensions/docs/server2/features_utility.py b/chrome/common/extensions/docs/server2/features_utility.py |
new file mode 100644 |
index 0000000000000000000000000000000000000000..e95b2c4f707c4af0baa740abf6e2ced1e31f5fc4 |
--- /dev/null |
+++ b/chrome/common/extensions/docs/server2/features_utility.py |
@@ -0,0 +1,64 @@ |
+# Copyright 2013 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. |
+ |
+def FeaturesFromJson(features_json): |
not at google - send to devlin
2013/08/08 16:31:19
let's go with Parse here and Merge below, then cal
jshumway
2013/08/14 23:38:39
Done.
|
+ '''Standardize the raw features file json |features_json| into a more regular |
+ format. Return a dictionary of features, keyed by name. Each feature is |
+ guaranteed to have a 'name' attribute and a 'platforms' attribute that is a |
+ list of platforms the feature is relevant to. Valid platforms are 'app' or |
+ 'extension'. Other optional keys may be present in each feature. |
+ |
+ Features with a 'whitelist' are only relevant to apps or extensions on that |
+ whitelist and are filtered out. |
+ ''' |
+ features = {} |
+ |
+ for name, value in features_json.iteritems(): |
+ # Some feature names corrispond to a list; force a list down to a single |
+ # feature by removing entries that have a 'whitelist'. |
+ if isinstance(value, list): |
+ values = [subvalue for subvalue in value if not 'whitelist' in subvalue] |
+ if values: |
+ value = values[0] |
+ else: |
+ continue |
+ |
+ if 'whitelist' in value: |
+ continue |
+ |
+ features[name] = { 'platforms': [] } |
+ |
+ platforms = value.pop('extension_types') |
+ if platforms == 'all' or 'platform_app' in platforms: |
+ features[name]['platforms'].append('app') |
+ if platforms == 'all' or 'extension' in platforms: |
+ features[name]['platforms'].append('extension') |
+ |
+ features[name]['name'] = name |
+ features[name].update(value) |
+ |
+ return features |
+ |
+def Filter(features, platform=None): |
+ '''Remove items from standardized |features| that are not relevant to |
+ |platform|. Returns the mutated features. |
+ ''' |
not at google - send to devlin
2013/08/08 16:31:19
How about this idiom: python has "sort" for in-pla
jshumway
2013/08/14 23:38:39
Done.
|
+ for name, feature in features.items(): |
+ if platform and not platform in feature['platforms']: |
+ del features[name] |
+ |
+ return features |
+ |
+def MergeFeatures(features, other): |
+ '''Merge additional information into |features| from |other|. Merge features |
+ with the same name with a standard dictionary update, instead of overwritting |
+ features present in both dictionaries. Mutates and returns features. |
+ ''' |
+ for key, value in other.iteritems(): |
+ if key in features: |
+ features[key].update(value) |
+ else: |
+ features[key] = value |
+ |
+ return features |