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# Copyright 2012 Hewlett-Packard Development Company, L.P.
#
# 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.
import re
import urllib
import logging
import voluptuous as vs
from urllib.parse import urlparse
from zuul.source import BaseSource
from zuul.model import Project
from zuul.driver.gerrit.gerritmodel import GerritRefFilter
from zuul.driver.util import scalar_or_list, to_list
from zuul.lib.dependson import find_dependency_headers
from zuul.zk.change_cache import ChangeKey
class GerritSource(BaseSource):
name = 'gerrit'
log = logging.getLogger("zuul.source.Gerrit")
def __init__(self, driver, connection, config=None):
hostname = connection.canonical_hostname
super(GerritSource, self).__init__(driver, connection,
hostname, config)
prefix_ui = urlparse(self.connection.baseurl).path
if prefix_ui:
prefix_ui = prefix_ui.lstrip('/').rstrip('/')
prefix_ui += '/'
self.change_re = re.compile(
r"/%s(\#\/c\/|c\/.*\/\+\/)?(\d+)[\w]*" % prefix_ui)
def getRefSha(self, project, ref):
return self.connection.getRefSha(project, ref)
def isMerged(self, change, head=None):
return self.connection.isMerged(change, head)
def canMerge(self, change, allow_needs, event=None, allow_refresh=False):
# Gerrit changes have no volatile data that cannot be updated via
# events and thus needs not to act on allow_refresh.
return self.connection.canMerge(change, allow_needs, event=event)
def postConfig(self):
pass
def getChangeKey(self, event):
connection_name = self.connection.connection_name
if event.change_number:
return ChangeKey(connection_name, None,
'GerritChange',
str(event.change_number),
str(event.patch_number))
revision = f'{event.oldrev}..{event.newrev}'
if event.ref and event.ref.startswith('refs/tags/'):
tag = event.ref[len('refs/tags/'):]
return ChangeKey(connection_name, event.project_name,
'Tag', tag, revision)
if event.ref and not event.ref.startswith('refs/'):
# Pre 2.13 Gerrit ref-updated events don't have branch prefixes.
return ChangeKey(connection_name, event.project_name,
'Branch', event.ref, revision)
if event.ref and event.ref.startswith('refs/heads/'):
# From the timer trigger or Post 2.13 Gerrit
branch = event.ref[len('refs/heads/'):]
return ChangeKey(connection_name, event.project_name,
'Branch', branch, revision)
if event.ref:
# catch-all ref (ie, not a branch or head)
return ChangeKey(connection_name, event.project_name,
'Ref', event.ref, revision)
self.log.warning("Unable to format change key for %s" % (event,))
def getChange(self, change_key, refresh=False, event=None):
return self.connection.getChange(change_key, refresh=refresh,
event=event)
def getChangeByURL(self, url, event):
try:
parsed = urllib.parse.urlparse(url)
except ValueError:
return None
path = parsed.path
if parsed.fragment:
path += '#' + parsed.fragment
m = self.change_re.match(path)
if not m:
return None
try:
change_no = int(m.group(2))
except ValueError:
return None
query = "change:%s" % (change_no,)
results = self.connection.simpleQuery(query, event=event)
if not results:
return None
change_key = ChangeKey(self.connection.connection_name, None,
'GerritChange',
str(results[0].number),
str(results[0].current_patchset))
change = self.connection._getChange(change_key, event=event)
return change
def getChangesDependingOn(self, change, projects, tenant):
changes = []
if not change.uris:
return changes
queries = set()
for uri in change.uris:
queries.add('message:{Depends-On: %s}' % uri)
query = '(' + ' OR '.join(queries) + ')'
results = self.connection.simpleQuery(query)
self.log.debug('%s possible depending changes found', len(results))
seen = set()
for result in results:
for match in find_dependency_headers(result.message):
found = False
for uri in change.uris:
if uri in match:
found = True
break
if not found:
continue
key = (result.number, result.current_patchset)
if key in seen:
continue
seen.add(key)
change_key = ChangeKey(self.connection.connection_name, None,
'GerritChange',
str(result.number),
str(result.current_patchset))
change = self.connection._getChange(change_key)
changes.append(change)
return changes
def getChangesByTopic(self, topic, changes=None):
if not topic:
return []
if changes is None:
changes = {}
query = 'status:open topic:%s' % topic
results = self.connection.simpleQuery(query)
for result in results:
change_key = ChangeKey(self.connection.connection_name, None,
'GerritChange',
str(result.number),
str(result.current_patchset))
if change_key in changes:
continue
change = self.connection._getChange(change_key)
changes[change_key] = change
for change in changes.values():
for git_key in change.git_needs_changes:
if git_key in changes:
continue
git_change = self.getChange(git_key)
if not git_change.topic or git_change.topic == topic:
continue
self.getChangesByTopic(git_change.topic, changes)
return list(changes.values())
def getCachedChanges(self):
yield from self.connection._change_cache
def getProject(self, name):
p = self.connection.getProject(name)
if not p:
p = Project(name, self)
self.connection.addProject(p)
return p
def getProjectOpenChanges(self, project):
return self.connection.getProjectOpenChanges(project)
def getProjectDefaultMergeMode(self, project):
# The gerrit jgit merge operation is most closely approximated
# by "git merge -s resolve", so we return that as the default
# for the Gerrit driver.
return 'merge-resolve'
def getProjectBranches(self, project, tenant, min_ltime=-1):
return self.connection.getProjectBranches(project, tenant, min_ltime)
def getProjectBranchCacheLtime(self):
return self.connection._branch_cache.ltime
def getGitUrl(self, project):
return self.connection.getGitUrl(project)
def _getGitwebUrl(self, project, sha=None):
return self.connection._getGitwebUrl(project, sha)
def getRequireFilters(self, config):
f = GerritRefFilter(
connection_name=self.connection.connection_name,
open=config.get('open'),
current_patchset=config.get('current-patchset'),
wip=config.get('wip'),
statuses=to_list(config.get('status')),
required_approvals=to_list(config.get('approval')),
)
return [f]
def getRejectFilters(self, config):
f = GerritRefFilter(
connection_name=self.connection.connection_name,
reject_approvals=to_list(config.get('approval')),
)
return [f]
def getRefForChange(self, change):
partial = str(change).zfill(2)[-2:]
return "refs/changes/%s/%s/.*" % (partial, change)
def setChangeAttributes(self, change, **attrs):
return self.connection.updateChangeAttributes(change, **attrs)
approval = vs.Schema({'username': str,
'email': str,
'older-than': str,
'newer-than': str,
}, extra=vs.ALLOW_EXTRA)
def getRequireSchema():
require = {'approval': scalar_or_list(approval),
'open': bool,
'current-patchset': bool,
'wip': bool,
'status': scalar_or_list(str)}
return require
def getRejectSchema():
reject = {'approval': scalar_or_list(approval)}
return reject
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