#!/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 # . */ 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') 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('writting 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-8', 'releases/gcc-9', 'releases/gcc-10'] 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(): 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)) 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() assert not repo.index.diff(None) print('branch is done\n', flush=True)