Merge "sourcedr: Add manifest split analyzer"

vndk/tools/sourcedr/sourcedr/blueprint/analyze_manifest_split.py

@@ -0,0 +1,162 @@
+#!/usr/bin/env python3
+
+#
+# Copyright (C) 2018 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from __future__ import print_function
+
+import argparse
+import collections
+import os
+import re
+import xml.dom.minidom
+
+from blueprint import RecursiveParser, evaluate_defaults, fill_module_namespaces
+
+
+def parse_manifest_xml(manifest_path):
+    """Build a dictionary that maps directories into projects."""
+    dir_project_dict = {}
+    parsed_xml = xml.dom.minidom.parse(manifest_path)
+    projects = parsed_xml.getElementsByTagName('project')
+    for project in projects:
+        name = project.getAttribute('name')
+        path = project.getAttribute('path')
+        if path:
+            dir_project_dict[path] = name
+        else:
+            dir_project_dict[name] = name
+    return dir_project_dict
+
+
+class DirProjectMatcher(object):
+    def __init__(self, dir_project_dict):
+        self._projects = sorted(dir_project_dict.items(), reverse=True)
+        self._matcher = re.compile(
+            '|'.join('(' + re.escape(path) + '(?:/|$))'
+                     for path, project in self._projects))
+
+    def find(self, path):
+        match = self._matcher.match(path)
+        if match:
+            return self._projects[match.lastindex - 1][1]
+        return None
+
+
+def parse_blueprint(root_bp_path):
+    """Parse Android.bp files."""
+    parser = RecursiveParser()
+    parser.parse_file(root_bp_path)
+    parsed_items = evaluate_defaults(parser.modules)
+    return fill_module_namespaces(root_bp_path, parsed_items)
+
+
+def _get_property(attrs, *names, **kwargs):
+    try:
+        result = attrs
+        for name in names:
+            result = result[name]
+        return result
+    except KeyError:
+        return kwargs.get('default', None)
+
+
+class GitProject(object):
+    def __init__(self):
+        self.system_only = set()
+        self.vendor_only = set()
+        self.both = set()
+
+    def add_module(self, path, rule, attrs):
+        name = _get_property(attrs, 'name')
+        ent = (rule, path, name)
+
+        if rule in {'llndk_library', 'hidl_interface'}:
+            self.both.add(ent)
+        elif rule.endswith('_binary') or \
+             rule.endswith('_library') or \
+             rule.endswith('_library_shared') or \
+             rule.endswith('_library_static') or \
+             rule.endswith('_headers'):
+            if _get_property(attrs, 'vendor') or \
+               _get_property(attrs, 'proprietary') or \
+               _get_property(attrs, 'soc_specific') or \
+               _get_property(attrs, 'device_specific'):
+                self.vendor_only.add(ent)
+            elif _get_property(attrs, 'vendor_available') or \
+                 _get_property(attrs, 'vndk', 'enabled'):
+                self.both.add(ent)
+            else:
+                self.system_only.add(ent)
+
+    def __repr__(self):
+        return ('GitProject(' +
+                'system_only=' + repr(self.system_only) + ', '
+                'vendor_only=' + repr(self.vendor_only) + ', '
+                'both=' + repr(self.both) + ')')
+
+
+def _parse_args():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('-b', '--blueprint', required=True,
+                        help='Path to root Android.bp')
+    parser.add_argument('-m', '--manifest', required=True,
+                        help='Path to repo manifest xml file')
+    parser.add_argument('--skip-no-overlaps', action='store_true',
+                        help='Skip projects without overlaps')
+    return parser.parse_args()
+
+
+def _dump_module_set(name, modules):
+    if not modules:
+        return
+    print('\t' + name)
+    for rule, path, name in sorted(modules):
+        print('\t\t' + rule, path, name)
+
+
+def main():
+    args = _parse_args()
+
+    # Load repo manifest xml file
+    dir_matcher = DirProjectMatcher(parse_manifest_xml(args.manifest))
+
+    # Classify Android.bp modules
+    git_projects = collections.defaultdict(GitProject)
+
+    root_dir = os.path.dirname(os.path.abspath(args.blueprint))
+    root_prefix_len = len(root_dir) + 1
+
+    for rule, attrs in parse_blueprint(args.blueprint):
+        path = _get_property(attrs, '_path')[root_prefix_len:]
+        project = dir_matcher.find(path)
+        git_projects[project].add_module(path, rule, attrs)
+
+    # Print output
+    for project, modules in sorted(git_projects.items()):
+        if args.skip_no_overlaps and (int(len(modules.system_only) > 0) +
+                                      int(len(modules.vendor_only) > 0) +
+                                      int(len(modules.both) > 0)) <= 1:
+            continue
+        print(project, len(modules.system_only), len(modules.vendor_only),
+              len(modules.both))
+        _dump_module_set('system_only', modules.system_only)
+        _dump_module_set('vendor_only', modules.vendor_only)
+        _dump_module_set('both', modules.both)
+
+
+if __name__ == '__main__':
+    main()