Script for exporting WPT

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

Index: third_party/WebKit/Tools/Scripts/webkitpy/w3c/sync.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/w3c/sync.py b/third_party/WebKit/Tools/Scripts/webkitpy/w3c/sync.py
new file mode 100644
index 0000000000000000000000000000000000000000..3ee0a0d136697bff4d01619a6fd0bebad934a268
--- /dev/null
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/w3c/sync.py
@@ -0,0 +1,94 @@
+# 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 argparse
+import base64
+import os
+import httplib2
+import json
+from webkitpy.common.host import Host
+from webkitpy.w3c.local_wpt import LocalWPT
+from webkitpy.w3c.chromium_wpt import ChromiumWPT
+from webkitpy.common.system.executive import ScriptError
+
+
+def main():
+    parser = argparse.ArgumentParser(description='WPT Sync')
+    parser.add_argument('--no-fetch', action='store_true')
+    options = parser.parse_args()
+
+    host = Host()
+
+    # TODO: the script does not handle reverted changes right now
+
+    local_wpt = LocalWPT(host, no_fetch=options.no_fetch)
+    chromium_wpt = ChromiumWPT(host)
+    wpt_commit, cr_commit = local_wpt.most_recent_cr_commit()
+
+    if cr_commit:
+        host.print_('## Found last exported WPT commit:')
+        host.print_('##   web-platform-tests@{0}'.format(wpt_commit))
+        host.print_('##   chromium@{0}'.format(cr_commit))
+    else:
+        host.print_('## No Chromium export commits found in WPT, stopping.')
+        return
+
+    host.print_('## Finding exportable commits in Chromium since {}...'.format(cr_commit))
+    exportable_commits = chromium_wpt.exportable_commits_since(cr_commit)
+
+    if exportable_commits:
+        host.print_('## Found {0} exportable commits in chromium:'.format(len(exportable_commits)))
+        for commit in exportable_commits:
+            host.print_('##  - {0} {1}'.format(commit, chromium_wpt.subject(commit)))
+    else:
+        host.print_('## No exportable commits found in Chromium, stopping.')
+        return
+
+    for commit in exportable_commits:
+        try:
+            host.print_('## Uploading {}'.format(chromium_wpt.subject(commit)))
+            patch = chromium_wpt.wpt_diff_patch(commit)
+            message = chromium_wpt.message(commit)
+            # TODO: this is a placeholder until we land actual commits on chromium master
+            message += '\n\nCr-Commit-Position: refs/heads/master@{#427719}'
+            branch_name = 'chromium-try-{}'.format(commit)
+            local_wpt.create_branch_with_patch(branch_name, message, patch)
+
+            print 'would have created PR'
+            # desc_title = chromium_wpt.subject(commit)
+            # user = os.environ.get('GH_USER')
+            # assert user
+            # pr_branch_name = '{}:{}'.format(user, branch_name)
+            # github_create_pr(pr_branch_name, desc_title)
+        except ScriptError as exp:
+            host.print_('## Upload failed with error:\n{}'.format(exp))

[foolip, 2016/11/01 22:07:45]

Should it rethrow the exception, or what will happen if it tries the next
commit?

[jeffcarp, 2016/11/01 23:21:18]

I was imagining that even if one patch couldn't apply cleanly, others would
still be able to. However, maybe for the sake of not creating complex error
states it should just bail out immediately.

[foolip, 2016/11/02 13:15:32]

Right, if we don't always apply patches in order, then it becomes more
complicated to figure out just from the state of the trees what should be
exported next.

+
+
+def github_auth_token():
+    user = os.environ.get('GH_USER')
+    token = os.environ.get('GH_TOKEN')
+    assert user and token
+    return base64.encodestring('{}:{}'.format(user, token))
+
+
+def github_create_pr(branch_name, desc_title):
+    # https://developer.github.com/v3/pulls/#create-a-pull-request
+    conn = httplib2.Http()
+    headers = {
+        "Accept": "application/vnd.github.v3+json",
+        "Authorization": "Basic " + github_auth_token()
+    }
+    body = {
+        "title": desc_title,
+        "body": "Test PR - testing export from Chromium",
+        "head": branch_name,
+        "base": "master"
+    }
+    resp, content = conn.request("https://api.github.com/repos/w3c/web-platform-tests/pulls",
+                                 "POST", body=json.JSONEncoder().encode(body), headers=headers)
+    print "GitHub response:"
+    print content
+    if resp["status"] != "201":
+        return None
+    return json.loads(content)