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1 #!/usr/bin/env python3
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2 #
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3 # This file is part of GCC.
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4 #
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5 # GCC is free software; you can redistribute it and/or modify it under
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6 # the terms of the GNU General Public License as published by the Free
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7 # Software Foundation; either version 3, or (at your option) any later
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8 # version.
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9 #
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10 # GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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11 # WARRANTY; without even the implied warranty of MERCHANTABILITY or
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12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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13 # for more details.
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14 #
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15 # You should have received a copy of the GNU General Public License
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16 # along with GCC; see the file COPYING3. If not see
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17 # <http://www.gnu.org/licenses/>. */
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18
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19 import argparse
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20 import datetime
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21 import os
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22
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23 from git import Repo
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24
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25 from git_repository import parse_git_revisions
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26
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27 current_timestamp = datetime.datetime.now().strftime('%Y%m%d\n')
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28
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29
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30 def read_timestamp(path):
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31 return open(path).read()
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32
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33
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34 def prepend_to_changelog_files(repo, folder, git_commit):
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35 if not git_commit.success:
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36 for error in git_commit.errors:
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37 print(error)
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38 raise AssertionError()
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39 for entry, output in git_commit.to_changelog_entries(use_commit_ts=True):
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40 full_path = os.path.join(folder, entry, 'ChangeLog')
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41 print('writting to %s' % full_path)
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42 if os.path.exists(full_path):
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43 content = open(full_path).read()
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44 else:
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45 content = ''
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46 with open(full_path, 'w+') as f:
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47 f.write(output)
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48 if content:
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49 f.write('\n\n')
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50 f.write(content)
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51 repo.git.add(full_path)
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52
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53
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54 active_refs = ['master', 'releases/gcc-8', 'releases/gcc-9', 'releases/gcc-10']
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55
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56 parser = argparse.ArgumentParser(description='Update DATESTAMP and generate '
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57 'ChangeLog entries')
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58 parser.add_argument('-g', '--git-path', default='.',
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59 help='Path to git repository')
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60 args = parser.parse_args()
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61
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62 repo = Repo(args.git_path)
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63 origin = repo.remotes['origin']
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64
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65 for ref in origin.refs:
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66 assert ref.name.startswith('origin/')
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67 name = ref.name[len('origin/'):]
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68 if name in active_refs:
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69 if name in repo.branches:
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70 branch = repo.branches[name]
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71 else:
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72 branch = repo.create_head(name, ref).set_tracking_branch(ref)
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73 print('=== Working on: %s ===' % branch, flush=True)
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74 origin.pull(rebase=True)
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75 branch.checkout()
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76 print('branch pulled and checked out')
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77 assert not repo.index.diff(None)
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78 commit = branch.commit
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79 commit_count = 1
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80 while commit:
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81 if (commit.author.email == 'gccadmin@gcc.gnu.org'
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82 and commit.message.strip() == 'Daily bump.'):
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83 break
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84 commit = commit.parents[0]
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85 commit_count += 1
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86
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87 print('%d revisions since last Daily bump' % commit_count)
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88 datestamp_path = os.path.join(args.git_path, 'gcc/DATESTAMP')
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89 if read_timestamp(datestamp_path) != current_timestamp:
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90 print('DATESTAMP will be changed:')
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91 commits = parse_git_revisions(args.git_path, '%s..HEAD'
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92 % commit.hexsha)
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93 for git_commit in reversed(commits):
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94 prepend_to_changelog_files(repo, args.git_path, git_commit)
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95 # update timestamp
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96 with open(datestamp_path, 'w+') as f:
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97 f.write(current_timestamp)
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98 repo.git.add(datestamp_path)
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99 repo.index.commit('Daily bump.')
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100 # TODO: push the repository
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101 # repo.git.push('origin', branch)
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102 else:
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103 print('DATESTAMP unchanged')
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104 print('branch is done\n', flush=True)
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