contrib/gcc-changelog/git_repository.py

   1 #!/usr/bin/env python3
   2 #
   3 # This file is part of GCC.
   4 #
   5 # GCC is free software; you can redistribute it and/or modify it under
   6 # the terms of the GNU General Public License as published by the Free
   7 # Software Foundation; either version 3, or (at your option) any later
   8 # version.
   9 #
  10 # GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  11 # WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13 # for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with GCC; see the file COPYING3.  If not see
  17 # <http://www.gnu.org/licenses/>.  */
  18
  19 from datetime import datetime
  20
  21 try:
  22     from git import Repo
  23 except ImportError:
  24     print('Cannot import GitPython package, please install the package:')
  25     print('  Fedora, openSUSE: python3-GitPython')
  26     print('  Debian, Ubuntu: python3-git')
  27     exit(1)
  28
  29 from git_commit import GitCommit, GitInfo, decode_path
  30
  31
  32 def parse_git_revisions(repo_path, revisions, ref_name=None):
  33     repo = Repo(repo_path)
  34
  35     def commit_to_info(commit):
  36         try:
  37             c = repo.commit(commit)
  38             diff = repo.commit(commit + '~').diff(commit)
  39
  40             modified_files = []
  41             for file in diff:
  42                 if hasattr(file, 'renamed_file'):
  43                     is_renamed = file.renamed_file
  44                 else:
  45                     is_renamed = file.renamed
  46                 if file.new_file:
  47                     t = 'A'
  48                 elif file.deleted_file:
  49                     t = 'D'
  50                 elif is_renamed:
  51                     # Consider that renamed files are two operations:
  52                     # the deletion of the original name
  53                     # and the addition of the new one.
  54                     modified_files.append((decode_path(file.a_path), 'D'))
  55                     t = 'A'
  56                 else:
  57                     t = 'M'
  58                 modified_files.append((decode_path(file.b_path), t))
  59
  60             date = datetime.utcfromtimestamp(c.committed_date)
  61             author = '%s  <%s>' % (c.author.name, c.author.email)
  62             git_info = GitInfo(c.hexsha, date, author,
  63                                c.message.split('\n'), modified_files)
  64             return git_info
  65         except ValueError:
  66             return None
  67
  68     parsed_commits = []
  69     if '..' in revisions:
  70         commits = list(repo.iter_commits(revisions))
  71     else:
  72         commits = [repo.commit(revisions)]
  73
  74     for commit in commits:
  75         git_commit = GitCommit(commit_to_info(commit.hexsha),
  76                                commit_to_info_hook=commit_to_info,
  77                                ref_name=ref_name)
  78         parsed_commits.append(git_commit)
  79     return parsed_commits