def paged_diffs()

in ForgeGit/forgegit/model/git_repo.py [0:0]

• 59 lines of code
• 6 McCabe index (conditional complexity)

    def paged_diffs(self, commit_id, start=0, end=None, onlyChangedFiles=False):
        result = {'added': [], 'removed': [], 'changed': [], 'copied': [], 'renamed': []}
        cmd_args = ['--no-commit-id',
                    '--name-status',
                    '--no-abbrev',
                    '--root',
                    # show tree entry itself as well as subtrees (Commit.added_paths relies on this)
                    '-t',
                    '-z'  # don't escape filenames and use \x00 as fields delimiter
                    ]
        if onlyChangedFiles:
            cmd_args[4] = '-r'
        if asbool(tg.config.get('scm.commit.git.detect_copies', True)):
            cmd_args += ['-M', '-C']

        cmd_output = self._git.git.diff_tree(commit_id, *cmd_args).split('\x00')[:-1]  # don't escape filenames and use \x00 as fields delimiter

        ''' cmd_output will be like:
        [
        'A',
        'filename',
        'D',
        'another filename',
        'M',
        'po',
        'R100',  # <-- These next three lines would only show up with 'detect_copies' enabled
        'po/sr.po',
        'po/sr_Latn.po',
        ]
        '''

        x = 0
        files = []
        while x < len(cmd_output):
            status = cmd_output[x][0]
            if status in ('R', 'C'):
                ratio = float(cmd_output[x][1:4]) / 100.0
                files.append((status, {
                    'new': h.really_unicode(cmd_output[x + 2]),
                    'old': h.really_unicode(cmd_output[x + 1]),
                    'ratio': ratio,
                }))
                x += 3
            else:
                files.append((status, h.really_unicode(cmd_output[x + 1])))
                x += 2

        for status, name in files[start:end]:
            change_list_types = {
                'R': result['renamed'],
                'C': result['copied'],
                'A': result['added'],
                'D': result['removed'],
                'M': result['changed'],
                'T': result['changed'],
            }
            if status in change_list_types:
                change_list = change_list_types[status]
                change_list.append(name)
            else:
                log.error('Unexpected git change status: "%s" on file %s commit %s repo %s',
                          status, name, commit_id, self._repo.full_fs_path)

        result['total'] = len(files)

        return result