import os
from git import Repo


COMMITS_TO_PRINT = 5


def print_commit(commit):
    print('----')
    print(str(commit.hexsha))
    print("\"{}\" by {} ({})".format(commit.summary,
                                     commit.author.name,
                                     commit.author.email))
    print(str(commit.authored_datetime))
    print(str("count: {} and size: {}".format(commit.count(),
                                              commit.size)))


def print_repository(repo):
    print('Repo description: {}'.format(repo.description))
    print('Repo active branch is {}'.format(repo.active_branch))
    for remote in repo.remotes:
        print('Remote named "{}" with URL "{}"'.format(remote, remote.url))
    print('Last commit for repo is {}.'.format(str(repo.head.commit.hexsha)))


if __name__ == "__main__":
    repo_path = os.getenv('GIT_REPO_PATH')
    # Repo object used to programmatically interact with Git repositories
    repo = Repo(repo_path)
    # check that the repository loaded correctly
    if not repo.bare:
        print('Repo at {} successfully loaded.'.format(repo_path))
        print_repository(repo)
        # create list of commits then print some of them to stdout
        commits = list(repo.iter_commits('master'))[:COMMITS_TO_PRINT]
        for commit in commits:
            print_commit(commit)
            pass
    else:
        print('Could not load repository at {} :('.format(repo_path))