Get git url of file (works for Github and Gitlab)

git_url.py

#!/usr/bin/env python
#
# Show URL of file in git, optionally open URL in browser.
# In contrast to 'hub' this works to Github *and* Gitlab.
#
# Requirements: GitPython, click
import logging
import os
import sys
import webbrowser

import click
import git
from git import Repo
from git.exc import GitCommandError

logger = logging.getLogger(__name__)


@click.command()
@click.argument('filename')
@click.option('-v', '--verbose', count=True)
@click.option('-b', '--browse', is_flag=True, help="Open in webbrowser")
@click.option('-l', '--line', help="Line number")
def git_url(filename, verbose, browse, line):
    if verbose:
        logging.basicConfig(level=logging.DEBUG)
    file_abspath = os.path.abspath(filename)
    repo = Repo(filename, search_parent_directories=True)
    git_root = repo.git.rev_parse("--show-toplevel")
    rel_path = file_abspath.split(git_root + '/')[1]
    branch = repo.active_branch.name

    try:
        git.cmd.Git().show_branch('remotes/origin/{}'.format(branch))
    except GitCommandError:
        sys.exit("Branch '{}' does not exist on remote.".format(branch))

    url = repo.config_reader().get_value('remote "origin"', 'url')
    url = url.replace('git@', '')
    url = url.replace('.git', '')
    url = url.replace(':', '/')

    logger.debug("Git root: {}".format(git_root))
    logger.debug("URL: {}".format(url))
    url = ('https://{url}/blob/{branch}/{rel_path}'
           .format(**{'url': url, 'branch': branch, 'rel_path': rel_path}))

    if line:
        url += '#L{}'.format(line)
    click.echo(url)

    if browse:
        webbrowser.open(url)


if __name__ == '__main__':
    git_url()