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1# Copyright (c) 2010 Google Inc. All rights reserved.
2#
3# Redistribution and use in source and binary forms, with or without
4# modification, are permitted provided that the following conditions are
5# met:
6#
7#     * Redistributions of source code must retain the above copyright
8# notice, this list of conditions and the following disclaimer.
9#     * Redistributions in binary form must reproduce the above
10# copyright notice, this list of conditions and the following disclaimer
11# in the documentation and/or other materials provided with the
12# distribution.
13#     * Neither the name of Google Inc. nor the names of its
14# contributors may be used to endorse or promote products derived from
15# this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29from webkitpy.common.config.committervalidator import CommitterValidator
30from webkitpy.common.system.deprecated_logging import log
31from webkitpy.tool.grammar import pluralize
32
33
34class AbstractFeeder(object):
35    def __init__(self, tool):
36        self._tool = tool
37
38    def feed(self):
39        raise NotImplementedError("subclasses must implement")
40
41
42class CommitQueueFeeder(AbstractFeeder):
43    queue_name = "commit-queue"
44
45    def __init__(self, tool):
46        AbstractFeeder.__init__(self, tool)
47        self.committer_validator = CommitterValidator(self._tool.bugs)
48
49    def _update_work_items(self, item_ids):
50        # FIXME: This is the last use of update_work_items, the commit-queue
51        # should move to feeding patches one at a time like the EWS does.
52        self._tool.status_server.update_work_items(self.queue_name, item_ids)
53        log("Feeding %s items %s" % (self.queue_name, item_ids))
54
55    def feed(self):
56        patches = self._validate_patches()
57        patches = self._patches_with_acceptable_review_flag(patches)
58        patches = sorted(patches, self._patch_cmp)
59        patch_ids = [patch.id() for patch in patches]
60        self._update_work_items(patch_ids)
61
62    def _patches_for_bug(self, bug_id):
63        return self._tool.bugs.fetch_bug(bug_id).commit_queued_patches(include_invalid=True)
64
65    # Filters out patches with r? or r-, only r+ or no review are OK to land.
66    def _patches_with_acceptable_review_flag(self, patches):
67        return [patch for patch in patches if patch.review() in [None, '+']]
68
69    def _validate_patches(self):
70        # Not using BugzillaQueries.fetch_patches_from_commit_queue() so we can reject patches with invalid committers/reviewers.
71        bug_ids = self._tool.bugs.queries.fetch_bug_ids_from_commit_queue()
72        all_patches = sum([self._patches_for_bug(bug_id) for bug_id in bug_ids], [])
73        return self.committer_validator.patches_after_rejecting_invalid_commiters_and_reviewers(all_patches)
74
75    def _patch_cmp(self, a, b):
76        # Sort first by is_rollout, then by attach_date.
77        # Reversing the order so that is_rollout is first.
78        rollout_cmp = cmp(b.is_rollout(), a.is_rollout())
79        if rollout_cmp != 0:
80            return rollout_cmp
81        return cmp(a.attach_date(), b.attach_date())
82
83
84class EWSFeeder(AbstractFeeder):
85    def __init__(self, tool):
86        self._ids_sent_to_server = set()
87        AbstractFeeder.__init__(self, tool)
88
89    def feed(self):
90        ids_needing_review = set(self._tool.bugs.queries.fetch_attachment_ids_from_review_queue())
91        new_ids = ids_needing_review.difference(self._ids_sent_to_server)
92        log("Feeding EWS (%s, %s new)" % (pluralize("r? patch", len(ids_needing_review)), len(new_ids)))
93        for attachment_id in new_ids:  # Order doesn't really matter for the EWS.
94            self._tool.status_server.submit_to_ews(attachment_id)
95            self._ids_sent_to_server.add(attachment_id)
96