bc990ff880
When the latest branch cut is from the very same hash as the previous branch was cut from, then the rev-list gives an empty list. Originally the last item from the list should have been taken. Since the list is empty the splitlines()[-1] gives "IndexError: list index out of range". This patch fixes this case with returning None early. Change-Id: If5ea4a356b0c7620e2de1d2ab77951d8b76bb5e2
469 lines
16 KiB
Python
469 lines
16 KiB
Python
# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging
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import os
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import os.path
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import subprocess
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from openstack_releases import links
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from openstack_releases import processutils
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# Disable warnings about insecure connections.
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from requests.packages import urllib3
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urllib3.disable_warnings()
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LOG = logging.getLogger(__name__)
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GIT_TAG_TEMPLATE = 'https://opendev.org/%s/src/tag/%s'
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def find_modified_deliverable_files():
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"Return a list of files modified by the most recent commit."
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results = processutils.check_output(
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['git', 'diff', '--name-only', '--pretty=format:', 'HEAD^']
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).decode('utf-8')
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filenames = [
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line.strip()
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for line in results.splitlines()
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if (line.startswith('deliverables/'))
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]
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return filenames
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def changes_since(workdir, repo, ref):
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"""Get all changes between the last ref and the current point.
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:param workdir: The git repo working directory.
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:param repo: The name of the repo.
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:param ref: The starting ref.
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:returns: Merged commits between the two points.
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"""
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try:
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changes = processutils.check_output(
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['git', 'log', '--decorate', '--no-merges', '--pretty=oneline',
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"%s..HEAD" % ref],
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cwd=os.path.join(workdir, repo),
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).decode('utf-8').strip()
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except processutils.CalledProcessError as err:
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LOG.error('Could not find {}: {}'.format(ref, err))
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changes = ''
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return changes
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def commit_exists(workdir, repo, ref):
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"""Return boolean specifying whether the reference exists in the repository.
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The commit must have been merged into the repository, but this
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check does not enforce any branch membership.
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"""
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try:
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processutils.check_output(
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['git', 'show', ref],
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cwd=os.path.join(workdir, repo),
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).decode('utf-8')
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except processutils.CalledProcessError as err:
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LOG.error('Could not find {}: {}'.format(ref, err))
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return False
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return True
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def tag_exists(repo, ref):
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"""Return boolean specifying whether the reference exists in the repository.
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Uses a cgit query instead of looking locally to avoid cloning a
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repository or having Depends-On settings in a commit message allow
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someone to fool the check.
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"""
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url = GIT_TAG_TEMPLATE % (repo, ref)
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return links.link_exists(url)
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def ensure_basic_git_config(workdir, repo, settings):
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"""Make sure git config is set.
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Given a repo directory and a settings dict, set local config values
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if those settings are not already defined.
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"""
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dest = os.path.join(workdir, repo)
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for key, value in settings.items():
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LOG.info('looking for git config {}'.format(key))
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try:
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existing = processutils.check_output(
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['git', 'config', '--get', key],
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cwd=dest,
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).decode('utf-8').strip()
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LOG.info('using existing setting of {}: {!r}'.format(key, existing))
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except processutils.CalledProcessError:
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LOG.info('updating setting of {} to {!r}'.format(key, value))
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processutils.check_call(
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['git', 'config', key, value],
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cwd=dest,
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)
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def clone_repo(workdir, repo, ref=None, branch=None):
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"Check out the code."
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LOG.debug('Checking out repository {} to {}'.format(
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repo, branch or ref or 'master'))
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cmd = [
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'./tools/clone_repo.sh',
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'--workspace', workdir,
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]
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if ref:
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cmd.extend(['--ref', ref])
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if branch:
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cmd.extend(['--branch', branch])
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cmd.append(repo)
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processutils.check_call(cmd)
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dest = os.path.join(workdir, repo)
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return dest
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def safe_clone_repo(workdir, repo, ref, messages):
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"""Clone a git repo and report success or failure.
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Ensure we have a local copy of the repository so we can scan for values
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that are more difficult to get remotely.
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"""
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try:
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clone_repo(workdir, repo, ref)
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except Exception as err:
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messages.error(
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'Could not clone repository %s at %s: %s' % (
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repo, ref, err))
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return False
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return True
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def checkout_ref(workdir, repo, ref, messages=None):
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"""Checkout a specific ref in the repo."""
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LOG.debug('Resetting the repository %s to HEAD', repo)
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# Reset the repo to HEAD just in case any ot the previous steps
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# updated a checked in file. If this fails we continue to try the
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# requested ref as that shoudl give us a more complete error log.
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try:
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processutils.check_call(
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['git', 'reset', '--hard'],
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cwd=os.path.join(workdir, repo))
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except processutils.CalledProcessError as err:
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if messages:
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messages.warning(
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'Could not reset repository {} to HEAD: {}'.format(
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repo, err))
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LOG.debug('Checking out repository %s to %s', repo, ref)
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try:
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processutils.check_call(
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['git', 'checkout', ref],
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cwd=os.path.join(workdir, repo))
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except processutils.CalledProcessError as err:
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if messages:
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messages.error(
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'Could not checkout repository {} at {}: {}'.format(
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repo, ref, err))
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return False
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return True
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def sha_for_tag(workdir, repo, version):
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"""Return the SHA for a given tag"""
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# git log 2.3.11 -n 1 --pretty=format:%H
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try:
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actual_sha = processutils.check_output(
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['git', 'log', str(version), '-n', '1', '--pretty=format:%H'],
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cwd=os.path.join(workdir, repo),
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stderr=subprocess.STDOUT,
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).decode('utf-8')
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actual_sha = actual_sha.strip()
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except processutils.CalledProcessError as e:
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LOG.info('ERROR getting SHA for tag %r: %s [%s]',
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version, e, e.output.strip())
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actual_sha = ''
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return actual_sha
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def _filter_branches(output):
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"Strip garbage from branch list output"
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return [
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n
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for n in output.strip().split()
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if '/' in n or n == 'master'
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]
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def branch_exists(workdir, repo, prefix, identifier):
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"""Does the prefix/identifier branch exist.
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Checks if a named branch already exists.
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:param workdir: The working directory for the local clone.
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:param repo: The name of the repo.
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:param prefix: The branch prefix (e.g. "stable" or "bugfix").
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:param idenifier: The branch identifier (series name or version).
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"""
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remote_match = 'remotes/origin/{}/{}'.format(prefix, identifier)
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try:
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containing_branches = _filter_branches(
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processutils.check_output(
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['git', 'branch', '-a'],
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cwd=os.path.join(workdir, repo),
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).decode('utf-8')
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)
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LOG.debug('looking for %s', remote_match)
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LOG.debug('found branches: %s', containing_branches)
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return (remote_match in containing_branches)
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except processutils.CalledProcessError as e:
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LOG.error('failed checking for branch: %s [%s]', e, e.output.strip())
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return False
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def stable_branch_exists(workdir, repo, series):
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"Does the stable/series branch exist?"
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return branch_exists(workdir, repo, 'stable', series)
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def check_branch_sha(workdir, repo, series, sha):
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"""Check if the SHA is in the targeted branch.
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The SHA must appear on a stable/$series branch (if it exists) or
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master (if stable/$series does not exist). It is up to the
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reviewer to verify that releases from master are in a sensible
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location relative to other existing branches.
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We do not compare $series against the existing branches ordering
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because that would prevent us from retroactively creating a stable
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branch for a project after a later stable branch is created (i.e.,
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if stable/N exists we could not create stable/N-1).
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"""
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remote_match = 'remotes/origin/stable/%s' % series
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try:
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containing_branches = _filter_branches(
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processutils.check_output(
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['git', 'branch', '-a', '--contains', sha],
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cwd=os.path.join(workdir, repo),
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).decode('utf-8')
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)
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# If the patch is on the named branch, everything is fine.
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if remote_match in containing_branches:
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LOG.debug('found %s branch', remote_match)
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return True
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LOG.debug('did not find %s in branches containing %s: %s',
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remote_match, sha, containing_branches)
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# If the expected branch does not exist yet, this may be a
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# late release attempt to create that branch or just a project
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# that hasn't branched, yet, and is releasing from master for
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# that series. Allow the release, as long as it is on the
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# master branch.
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all_branches = _filter_branches(
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processutils.check_output(
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['git', 'branch', '-a'],
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cwd=os.path.join(workdir, repo),
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).decode('utf-8')
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)
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if remote_match not in all_branches:
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if 'master' in containing_branches:
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LOG.debug('did not find %s but SHA is on master',
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remote_match)
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return True
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if 'origin/master' in containing_branches:
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LOG.debug('did not find %s but SHA is on origin/master',
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remote_match)
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return True
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# At this point we know the release is not from the required
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# branch and it is not from master, which means it is the
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# wrong branch and should not be allowed.
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LOG.debug('did not find SHA on %s or master or origin/master',
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remote_match)
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return False
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except processutils.CalledProcessError as e:
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LOG.error('failed checking SHA on branch: %s [%s]' % (e, e.output.strip()))
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return False
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def check_ancestry(workdir, repo, old_version, sha):
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"Check if the SHA is in the ancestry of the previous version."
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try:
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ancestors = processutils.check_output(
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['git', 'log', '--oneline', '--ancestry-path',
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'%s..%s' % (old_version, sha)],
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cwd=os.path.join(workdir, repo),
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).decode('utf-8').strip()
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return bool(ancestors)
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except processutils.CalledProcessError as e:
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LOG.error('failed checking ancestry: %s [%s]' % (e, e.output.strip()))
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return False
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def get_head(workdir, repo):
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cmd = ['git', 'log', '-n', '1', '--pretty=tformat:%h']
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try:
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return processutils.check_output(
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cmd,
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cwd=os.path.join(workdir, repo),
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stderr=subprocess.STDOUT,
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).decode('utf-8').strip()
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except processutils.CalledProcessError as e:
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LOG.warning('failed to retrieve HEAD: %s [%s]',
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e, e.output.strip())
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return None
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def get_latest_tag(workdir, repo, sha=None, always=True):
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cmd = ['git', 'describe', '--abbrev=0']
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if always:
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cmd.append('--always')
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if sha is not None:
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cmd.append(sha)
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LOG.debug(' '.join(cmd))
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try:
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return processutils.check_output(
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cmd,
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cwd=os.path.join(workdir, repo),
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stderr=subprocess.STDOUT,
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).decode('utf-8').strip()
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except processutils.CalledProcessError as e:
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LOG.warning('failed to retrieve latest tag: %s [%s]',
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e, e.output.strip())
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return None
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def add_tag(workdir, repo, tag, sha):
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cmd = ['git', 'tag', '-m', 'temporary tag', tag, sha]
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try:
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LOG.info(' '.join(cmd))
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return processutils.check_output(
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cmd,
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cwd=os.path.join(workdir, repo),
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stderr=subprocess.STDOUT,
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).decode('utf-8').strip()
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except processutils.CalledProcessError as e:
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LOG.warning('failed to add tag: %s [%s]',
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e, e.output.strip())
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return None
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def delete_tag(workdir, repo, tag):
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cmd = ['git', 'tag', '-d', tag]
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try:
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LOG.info(' '.join(cmd))
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return processutils.check_output(
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cmd,
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cwd=os.path.join(workdir, repo),
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stderr=subprocess.STDOUT,
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).decode('utf-8').strip()
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except processutils.CalledProcessError as e:
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LOG.warning('failed to delete tag: %s [%s]',
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e, e.output.strip())
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return None
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def get_branches(workdir, repo):
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try:
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output = processutils.check_output(
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['git', 'branch', '-a'],
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cwd=os.path.join(workdir, repo),
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stderr=subprocess.STDOUT,
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).decode('utf-8').strip()
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# Example output:
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# * (no branch)
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# master
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# stable/mitaka
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# stable/newton
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# stable/ocata
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# remotes/origin/HEAD -> origin/master
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# remotes/origin/master
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# remotes/origin/stable/mitaka
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# remotes/origin/stable/newton
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# remotes/origin/stable/ocata
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results = []
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for line in output.splitlines():
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branch = line.strip().lstrip('*').strip()
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if branch.startswith('('):
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continue
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if '->' in branch:
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continue
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results.append(branch)
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return results
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except processutils.CalledProcessError as e:
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LOG.error('failed to retrieve list of branches: %s [%s]',
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e, e.output.strip())
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return []
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def branches_containing(workdir, repo, ref):
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try:
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output = processutils.check_output(
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['git', 'branch', '-r', '--contains', ref],
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cwd=os.path.join(workdir, repo),
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stderr=subprocess.STDOUT,
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).decode('utf-8').strip()
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# Example output:
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# origin/stable/ocata
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results = []
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for line in output.splitlines():
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results.append(line.strip())
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return results
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except processutils.CalledProcessError as e:
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LOG.error('failed to retrieve list of branches containing %s: %s [%s]',
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ref, e, e.output.strip())
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return []
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def get_branch_base(workdir, repo, branch):
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"Return SHA at base of branch."
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# http://stackoverflow.com/questions/1527234/finding-a-branch-point-with-git
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# git rev-list $(git rev-list --first-parent ^origin/stable/newton master | tail -n1)^^!
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#
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# Determine the first parent.
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cmd = [
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'git',
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'rev-list',
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'--first-parent',
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'^origin/{}'.format(branch),
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'master',
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]
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try:
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parents = processutils.check_output(
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cmd,
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cwd=os.path.join(workdir, repo),
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stderr=subprocess.STDOUT,
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).decode('utf-8').strip()
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except processutils.CalledProcessError as e:
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LOG.warning('failed to retrieve branch base: %s [%s]',
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e, e.output.strip())
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return None
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if parents == '':
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LOG.warning('branch base query result was empty for %s repository',
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repo)
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return None
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parent = parents.splitlines()[-1]
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# Now get the ^^! commit
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cmd = [
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'git',
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'rev-list',
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'{}^^!'.format(parent),
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]
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try:
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return processutils.check_output(
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cmd,
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cwd=os.path.join(workdir, repo),
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stderr=subprocess.STDOUT,
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).decode('utf-8').strip()
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except processutils.CalledProcessError as e:
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LOG.warning('failed to retrieve branch base: %s [%s]',
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e, e.output.strip())
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return None
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