diff options
| -rwxr-xr-x | utils/checkstyle.py | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/utils/checkstyle.py b/utils/checkstyle.py index a11d95cc..78645410 100755 --- a/utils/checkstyle.py +++ b/utils/checkstyle.py @@ -352,6 +352,68 @@ class HeaderAddChecker(CommitChecker): return issues +class TitleChecker(CommitChecker): + prefix_regex = re.compile(r'[0-9a-f]+ (([a-zA-Z0-9_.-]+: )+)') + release_regex = re.compile(r'libcamera v[0-9]+\.[0-9]+\.[0-9]+') + + @classmethod + def check(cls, commit, top_level): + title = commit.title + + # Ignore release commits, they don't need a prefix. + if TitleChecker.release_regex.fullmatch(title): + return [] + + prefix_pos = title.find(': ') + if prefix_pos != -1 and prefix_pos != len(title) - 2: + return [] + + # Find prefix candidates by searching the git history + msgs = subprocess.run(['git', 'log', '--no-decorate', '--oneline', '-n100', '--'] + commit.files(), + stdout=subprocess.PIPE).stdout.decode('utf-8') + prefixes = {} + prefixes_count = 0 + for msg in msgs.splitlines(): + prefix = TitleChecker.prefix_regex.match(msg) + if not prefix: + continue + + prefix = prefix.group(1) + if prefix in prefixes: + prefixes[prefix] += 1 + else: + prefixes[prefix] = 1 + + prefixes_count += 1 + + if not prefixes: + return [CommitIssue('Commit title is missing prefix')] + + # Sort the candidates by number of occurrences and pick the best ones. + # When multiple prefixes are possible without a clear winner, we want to + # display the most common options to the user, but without the most + # unlikely options to avoid too long messages. As a heuristic, select + # enough candidates to cover at least 2/3 of the possible prefixes, but + # never more than 4 candidates. + prefixes = list(prefixes.items()) + prefixes.sort(key=lambda x: x[1], reverse=True) + + candidates = [] + candidates_count = 0 + for prefix in prefixes: + candidates.append(f"`{prefix[0]}'") + candidates_count += prefix[1] + if candidates_count >= prefixes_count * 2 / 3 or \ + len(candidates) == 4: + break + + candidates = candidates[:-2] + [' or '.join(candidates[-2:])] + candidates = ', '.join(candidates) + + return [CommitIssue('Commit title is missing prefix, ' + 'possible candidates are ' + candidates)] + + # ------------------------------------------------------------------------------ # Style Checkers # |