wpt-export-stats script

third_party/WebKit/Tools/Scripts/wpt-export-stats

+#!/usr/bin/env python
+# Copyright 2017 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.
+
+from webkitpy.common.host import Host
+from webkitpy.w3c.chromium_commit import ChromiumCommit
+from webkitpy.w3c.chromium_finder import absolute_chromium_dir
+
+import os.path
+
+# rename to LayoutTests/external/ was on Jan 17
+JAN17 = "6506b8b80db745936336bb88855cd078c083691e"
+JAN31 = "ab70c862d2b27087dd382a65a00001c666550cdd"
+FEB28 = "480fa30589acd71427e3f902fd7916e87c41f5d9"
+MAR31 = "2ce4271d950f61c7c3993ee7af1585df9a0b55c2"
+APR30 = "71f3bd1682b75efac412a7431adae78afb8a903b"
+MAY15 = "e23bdc0201d0327ae578615fda8674842348999a"
+
+NOTEST_DIRS = [
+    'third_party/WebKit/LayoutTests',
+    'third_party/WebKit/LayoutTests/FlagExpectations',
+    'third_party/WebKit/LayoutTests/external',
+    'third_party/WebKit/LayoutTests/external/wpt',
+]
+
+def is_source(path):
+    return path.startswith('third_party/WebKit/Source/')
+
+def is_test(path):
+    if not path.startswith('third_party/WebKit/LayoutTests/'):
+        return False
+    dirname, basename = os.path.split(path)
+    # TestExpectations, MANIFEST.json, etc.
+    if dirname in NOTEST_DIRS:
+        return False
+    return True
+
+def is_in_wpt(path):
+    return path.startswith('third_party/WebKit/LayoutTests/external/wpt/')
+
+def main():
+    host = Host()
+    chromium_dir = absolute_chromium_dir(host)
+
+    lt_revs = host.executive.run_command([
+        'git', 'rev-list', '{}..{}'.format(MAR31, APR30),
+        '--', 'third_party/WebKit/LayoutTests',
+    ], cwd=chromium_dir).strip().split()
+
+    changes = 0
+    wpt_changes = 0
+    for sha in lt_revs:
+        changed_files = host.executive.run_command([
+            'git', 'diff-tree', '--name-only', '--no-commit-id', '-r', sha,
+            '--', 'third_party/WebKit',
+        ], cwd=chromium_dir).splitlines()
+
+        # ignore commits that do not touch the source
+        if not any((is_source(f) for f in changed_files)):
+            continue
+
+        test_files = [f for f in changed_files if is_test(f)]
+
+        if len(test_files) == 0:
+            continue
+
+        print sha
+        for f in changed_files:
+            print f
+        print
+
+        changes += 1
+
+        if any((is_in_wpt(f) for f in test_files)):
+            wpt_changes += 1
+
+    print '{} source+test changes, {} in wpt'.format(changes, wpt_changes)
+
+if __name__ == '__main__':
+    main()