06a7257b40
Bug: skia:8932 Change-Id: Ic7414a6fdfbd8f6a822d1c4c09465843889bb885 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209161 Reviewed-by: Heather Miller <hcm@google.com> Commit-Queue: Eric Boren <borenet@google.com>
105 lines
3.4 KiB
Python
105 lines
3.4 KiB
Python
#!/usr/bin/env python
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#
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# Copyright 2019 Google Inc.
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#
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import os
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import re
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import subprocess
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import sys
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from infra import git
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from infra import go
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_TOOLS_DIR = os.path.dirname(os.path.abspath(__file__))
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_REPO_ROOT = os.path.realpath(os.path.join(_TOOLS_DIR, os.pardir))
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_INFRA_BOTS = os.path.join(_REPO_ROOT, 'infra', 'bots')
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sys.path.insert(0, _INFRA_BOTS)
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import git_utils
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REFS_HEADS_PREFIX = 'refs/heads/'
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CHROME_REF_PREFIX = REFS_HEADS_PREFIX + 'chrome/m'
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SK_MILESTONE_H = os.path.join('include', 'core', 'SkMilestone.h')
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SK_MILESTONE_TMPL = r'#define SK_MILESTONE %s'
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SK_MILESTONE_RE = SK_MILESTONE_TMPL % r'(\d+)'
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SKIA_REPO = 'https://skia.googlesource.com/skia.git'
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SUPPORTED_CHROME_BRANCHES = 2 # Per infra policy; see skbug.com/8940
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UPDATE_MILESTONE_COMMIT_MSG = '''Update Skia milestone to %d'''
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def get_current_milestone():
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'''Read SkMilestone.h and parse out the current milestone.'''
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sk_milestone = os.path.join(_REPO_ROOT, SK_MILESTONE_H)
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with open(sk_milestone, 'r') as f:
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contents = f.read()
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for line in contents.splitlines():
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m = re.match(SK_MILESTONE_RE, line)
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if m:
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return int(m.groups()[0])
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print >> sys.stderr, (
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'Failed to parse %s; has the format changed?' % SK_MILESTONE_H)
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sys.exit(1)
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def create_new_branch(new_branch, branch_at):
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'''Create a temporary checkout of the repo, create the new branch and push.'''
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b = new_branch[len(REFS_HEADS_PREFIX):]
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with git_utils.NewGitCheckout(SKIA_REPO, local=_REPO_ROOT):
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git.git('checkout', '-b', b)
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git.git('reset', '--hard', branch_at)
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git.git('push', '--set-upstream', 'origin', b)
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def update_milestone(m):
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'''Update SkMilestone.h to match the given milestone number.'''
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with git_utils.NewGitCheckout(SKIA_REPO, local=_REPO_ROOT):
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with git_utils.GitBranch(
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'update_milestone', UPDATE_MILESTONE_COMMIT_MSG % m):
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with open(SK_MILESTONE_H, 'r+') as f:
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contents = re.sub(
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SK_MILESTONE_RE, SK_MILESTONE_TMPL % str(m), f.read(), flags=re.M)
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f.seek(0)
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f.write(contents)
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f.truncate()
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git.git('diff')
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def update_infra_config(old_branch, new_branch):
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'''Create a CL to add infra support for the new branch and remove the old.'''
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owner = git.git('config', 'user.email').rstrip()
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if not owner:
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print >> sys.stderr, ('No configured git user; please run '
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'"git config user.email <your email>".')
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sys.exit(1)
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go.get(go.INFRA_GO+'/go/supported_branches/cmd/new-branch')
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subprocess.check_call(['new-branch',
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'--branch', new_branch,
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'--delete', old_branch,
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'--owner', owner,
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'--exclude-trybots=chromium.*',
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'--exclude-trybots=.*Android_Framework.*'])
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def main():
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if len(sys.argv) != 2:
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print >> sys.stderr, 'Usage: %s <commit hash for branch>' % sys.argv[0]
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sys.exit(1)
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go.check()
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branch_at = sys.argv[1]
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m = get_current_milestone()
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new_branch = '%s%d' % (CHROME_REF_PREFIX, m)
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old_branch = '%s%d' % (CHROME_REF_PREFIX, m-SUPPORTED_CHROME_BRANCHES)
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print 'Creating branch %s and removing support (eg. CQ) for %s' % (
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new_branch, old_branch)
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create_new_branch(new_branch, branch_at)
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update_milestone(m+1)
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update_infra_config(old_branch, new_branch)
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if __name__ == '__main__':
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main()
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