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- #!/usr/bin/env python3
- #
- # This file is part of GCC.
- #
- # GCC is free software; you can redistribute it and/or modify it under
- # the terms of the GNU General Public License as published by the Free
- # Software Foundation; either version 3, or (at your option) any later
- # version.
- #
- # GCC is distributed in the hope that it will be useful, but WITHOUT ANY
- # WARRANTY; without even the implied warranty of MERCHANTABILITY or
- # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- # for more details.
- #
- # You should have received a copy of the GNU General Public License
- # along with GCC; see the file COPYING3. If not see
- # <http://www.gnu.org/licenses/>. */
- import argparse
- import datetime
- import os
- from git import Repo
- from git_repository import parse_git_revisions
- current_timestamp = datetime.datetime.now().strftime('%Y%m%d\n')
- # Skip the following commits, they cannot be correctly processed
- IGNORED_COMMITS = (
- 'c2be82058fb40f3ae891c68d185ff53e07f14f45',
- '04a040d907a83af54e0a98bdba5bfabc0ef4f700',
- '2e96b5f14e4025691b57d2301d71aa6092ed44bc',
- '3ab5c8cd03d92bf4ec41e351820349d92fbc40c4',
- '86d8e0c0652ef5236a460b75c25e4f7093cc0651')
- def read_timestamp(path):
- with open(path) as f:
- return f.read()
- def prepend_to_changelog_files(repo, folder, git_commit, add_to_git):
- if not git_commit.success:
- for error in git_commit.errors:
- print(error)
- raise AssertionError()
- for entry, output in git_commit.to_changelog_entries(use_commit_ts=True):
- full_path = os.path.join(folder, entry, 'ChangeLog')
- print('writing to %s' % full_path)
- if os.path.exists(full_path):
- with open(full_path) as f:
- content = f.read()
- else:
- content = ''
- with open(full_path, 'w+') as f:
- f.write(output)
- if content:
- f.write('\n\n')
- f.write(content)
- if add_to_git:
- repo.git.add(full_path)
- active_refs = ['master', 'releases/gcc-9', 'releases/gcc-10',
- 'releases/gcc-11']
- parser = argparse.ArgumentParser(description='Update DATESTAMP and generate '
- 'ChangeLog entries')
- parser.add_argument('-g', '--git-path', default='.',
- help='Path to git repository')
- parser.add_argument('-p', '--push', action='store_true',
- help='Push updated active branches')
- parser.add_argument('-d', '--dry-mode',
- help='Generate patch for ChangeLog entries and do it'
- ' even if DATESTAMP is unchanged; folder argument'
- ' is expected')
- parser.add_argument('-c', '--current', action='store_true',
- help='Modify current branch (--push argument is ignored)')
- args = parser.parse_args()
- repo = Repo(args.git_path)
- origin = repo.remotes['origin']
- def update_current_branch(ref_name):
- commit = repo.head.commit
- commit_count = 1
- while commit:
- if (commit.author.email == 'gccadmin@gcc.gnu.org'
- and commit.message.strip() == 'Daily bump.'):
- break
- # We support merge commits but only with 2 parensts
- assert len(commit.parents) <= 2
- commit = commit.parents[-1]
- commit_count += 1
- print('%d revisions since last Daily bump' % commit_count)
- datestamp_path = os.path.join(args.git_path, 'gcc/DATESTAMP')
- if (read_timestamp(datestamp_path) != current_timestamp
- or args.dry_mode or args.current):
- head = repo.head.commit
- # if HEAD is a merge commit, start with second parent
- # (branched that is being merged into the current one)
- assert len(head.parents) <= 2
- if len(head.parents) == 2:
- head = head.parents[1]
- commits = parse_git_revisions(args.git_path, '%s..%s'
- % (commit.hexsha, head.hexsha), ref_name)
- commits = [c for c in commits if c.info.hexsha not in IGNORED_COMMITS]
- for git_commit in reversed(commits):
- prepend_to_changelog_files(repo, args.git_path, git_commit,
- not args.dry_mode)
- if args.dry_mode:
- diff = repo.git.diff('HEAD')
- patch = os.path.join(args.dry_mode,
- branch.name.split('/')[-1] + '.patch')
- with open(patch, 'w+') as f:
- f.write(diff)
- print('branch diff written to %s' % patch)
- repo.git.checkout(force=True)
- else:
- # update timestamp
- print('DATESTAMP will be changed:')
- with open(datestamp_path, 'w+') as f:
- f.write(current_timestamp)
- repo.git.add(datestamp_path)
- if not args.current:
- repo.index.commit('Daily bump.')
- if args.push:
- repo.git.push('origin', branch)
- print('branch is pushed')
- else:
- print('DATESTAMP unchanged')
- if args.current:
- print('=== Working on the current branch ===', flush=True)
- update_current_branch()
- else:
- for ref in origin.refs:
- assert ref.name.startswith('origin/')
- name = ref.name[len('origin/'):]
- if name in active_refs:
- if name in repo.branches:
- branch = repo.branches[name]
- else:
- branch = repo.create_head(name, ref).set_tracking_branch(ref)
- print('=== Working on: %s ===' % branch, flush=True)
- branch.checkout()
- origin.pull(rebase=True)
- print('branch pulled and checked out')
- update_current_branch(name)
- assert not repo.index.diff(None)
- print('branch is done\n', flush=True)
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