Script for exporting WPT

third_party/WebKit/Tools/Scripts/webkitpy/w3c/chromium_wpt.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/w3c/chromium_wpt.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/w3c/chromium_wpt.py b/third_party/WebKit/Tools/Scripts/webkitpy/w3c/chromium_wpt.py
new file mode 100644
index 0000000000000000000000000000000000000000..42466e5b4ca1e6a70331bb0bb0fc283a2d27c3bb
--- /dev/null
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/w3c/chromium_wpt.py
@@ -0,0 +1,55 @@
+# Copyright 2016 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
+
+CR_WPT_DIR = 'third_party/WebKit/LayoutTests/imported/wpt/'
+
+
+class ChromiumWPT(object):
+
+    def __init__(self, host):
+        self.host = host
+        self.absolute_chromium_wpt_dir = os.path.abspath(os.path.join('..', '..', 'LayoutTests', 'imported', 'wpt'))
+
+    def exportable_commits_since(self, sha):
+        cr_commits = self.cr_commits_since(sha)
+        return filter(self.has_changes_in_wpt, cr_commits)
+
+    def has_changes_in_wpt(self, sha):
+        """Returns if a Chromium sha has changed files in
+        LayoutTests/imported/wpt unless they're expectations
+        """
+        assert sha
+
+        diff_files = self.host.executive.run_command([
+            'git', 'diff-tree', '--no-commit-id',
+            '--name-only', '-r', '{}'.format(sha)
+        ])
+
+        files = [f.strip() for f in filter(bool, diff_files.split('\n'))]
+        return any([f.startswith(CR_WPT_DIR) and '-expected' not in f for f in files])
+
+    def cr_commits_since(self, sha):
+        commits = self.host.executive.run_command([
+            'git', 'rev-list', '--reverse', '{}..HEAD'.format(sha)
+        ])
+        return filter(bool, commits.split('\n'))
+
+    def subject(self, sha):
+        return self.host.executive.run_command([
+            'git', 'show', sha, '--format=%s', '--no-patch'
+        ])
+
+    def message(self, sha):
+        return self.host.executive.run_command([
+            'git', 'show', sha, '--format=%B', '--no-patch'
+        ])
+
+    def wpt_diff_patch(self, sha):
+        """Get patch but only for files in LayoutTests/imported/wpt"""
+        return self.host.executive.run_command([
+            'git', 'format-patch', '-1', '--stdout',
+            '{}'.format(sha), self.absolute_chromium_wpt_dir
+        ])