Updates the default branch of a users repos to something less impactful.

.Master-To-Main.md

Master To Main

A simple script to convert the default name of a user's branches from 'master' to 'main' (or another name specified)

Installing

Place both the main.py and requirements.txt in a directory and run pip install -r requirements.txt.

Usage

main.py -t <token> -r <repos> -n <new_name>

Flag	Default	Description
"-t", "--token"	None	A personal access token for a users account. If omitted, an interactive login prompt will be shown
"-r", "--repos"	None	A comma separated list of repos to use. If omitted, all repos will be converted.
"-n", "--name"	'main'	The new name for all primary branches.

main.py

import sys
import getopt
import getpass

from github import Github

def token_login(token=''):
    while (not token):
        while(True):
            token = raw_input("Token: ")
            try:
                github_object = Github(token)
                print("Authenticated as {0}".format(github_object.get_user().login))
                return github_object
            except:
                print("Token Login Failed, Try again.")

def switch_to_new_branch(repo, new_name='main'):
    try:
        sb = repo.get_branch("master")
        
        # Create new branch
        repo.create_git_ref(ref='refs/heads/main', sha=sb.commit.sha)

        # Set new branch to default
        repo.edit(name=repo.name, default_branch='main')

        # Delete Master Branch
        ref = repo.get_git_ref("heads/master")
        ref.delete()
        print("Successfully converted {0}".format(repo.name))
    except Exception as e:
        print("Error converting {0}: {1}".format(repo.name, e.data["message"]))

def main(argv):
    token = ''
    repos = ''
    new_name = ''
    github_object = {}
    try:
        opts, args = getopt.getopt(argv,"t:r:n:",["token=","repos=","name="])
    except getopt.GetoptError:
        print 'main.py -t <token> -r <repos> -n <new_name>'
        sys.exit(2)
    for opt, arg in opts:
        if opt == '-h':
            print 'main.py -t <token> -r <repos> -n <new_name>'
            sys.exit()
        elif opt in ("-t", "--token"):
            token = arg
        elif opt in ("-r", "--repos"):
            repos = arg
        elif opt in ("-n", "--name"):
            new_name = arg

    if (token):
        github_object = token_login(token)
    else:
        github_object = token_login()

    if (repos):
        for repo in repos.split(','):
            print("Switching {0}".format(repo))
            repo = github_object.get_user().get_repo(repo)
            switch_to_new_branch(repo, new_name=new_name)
    else:
        confirm = raw_input("Convert all repos? [Y/n]")
        if (confirm == "n"):
            sys.exit(1)
        for repo in github_object.get_user().get_repos():
            if(repo.owner.login == github_object.get_user().login):
                switch_to_new_branch(repo, new_name=new_name)

if __name__ == "__main__":
   main(sys.argv[1:])

requirements.txt

asn1crypto==0.24.0
asyncio==3.4.3
aws-shell==0.2.1
awscli==1.18.84
backports.functools-lru-cache==1.6.1
boto3==1.14.7
botocore==1.17.7
certifi==2020.6.20
chardet==3.0.4
colorama==0.4.3
configobj==5.0.6
cryptography==2.1.4
Deprecated==1.2.10
docutils==0.15.2
dotenv==0.0.5
enum34==1.1.6
futures==3.3.0
gitdb2==2.0.6
idna==2.10
ipaddress==1.0.17
jmespath==0.10.0
keyring==10.6.0
keyrings.alt==3.0
lxml==4.5.0
prompt-toolkit==1.0.18
pyasn1==0.4.8
pycrypto==2.6.1
PyGithub==1.45
Pygments==2.5.2
pygobject==3.26.1
PyJWT==1.7.1
python-dateutil==2.8.1
pyxdg==0.25
PyYAML==5.3.1
requests==2.24.0
rsa==3.4.2
s3transfer==0.3.3
SecretStorage==2.3.1
six==1.15.0
smmap==3.0.4
smmap2==3.0.1
urllib3==1.25.10
wcwidth==0.2.4
wrapt==1.12.1