chremote.py: Change https -> ssh remote urls for GitHub repos in a directory

chremote.py

#!/usr/bin/python
"""Changes remote urls for repositories in a given directory to SSH remotes
for repositories in a given directory. Since GitHub removed password based auth.

Run it using: `python chremote.py --d /path/to/directory`

Basic interaction is outlined below;

```
$ ls /path/to/directory
repo1 repo2 repo3 repo4

$ cd repo1

$ git remote get-url origin
https://[email protected]/username/repo1.git

$ python chremote.py --d /path/to/directory

$ cd repo1

$ git remote get-url origin
[email protected]:username/repo1.git
```

@author [zikani03](https://github.com/zikani03)
"""

import argparse
import os
import re
import subprocess

def change_remotes(dir_name, remote_name):
	res = subprocess.run(f'git remote get-url {remote_name}'.split(' '), capture_output=True)
	remote_url = str(res.stdout, encoding='utf-8').strip()
	
	if remote_url.startswith('git@'):
		return True
	
	git_ssh_url = re.sub(r'http(s)?://(\w+@)?', 'git@', remote_url).replace('github.com/', 'github.com:')
	if subprocess.run(f'git remote set-url {remote_name} {git_ssh_url}'.split(' ')):
		return True
		
	return False

def change_remotes_in_dir(dir_name):
	abs_path_to_root_dir = os.path.abspath(dir_name)
	files = [os.path.join(abs_path_to_root_dir, f) for f in os.listdir(abs_path_to_root_dir)]
	
	for f in files:
		if not os.path.isdir(f):
			continue
			
		os.chdir(f)
		if os.path.exists(os.path.join(f, '.git')):
			change_remotes(f, 'origin')

if __name__ == '__main__':
	parser = argparse.ArgumentParser()
	parser.add_argument("--d", help='Directory containing git repos')
	args = parser.parse_args()
	
	change_remotes_in_dir(args.d)