Simple python script to download all GitHub branches for a given repo.

all-git-branches.py

#!/usr/bin/python

# python3 ./all-git-branches.py -u <user> -d <directory> -r <repo> -n <number of commits>
#
# Tool to inspect Github and pull local copies of all commits for
# for the given user.
#
# Why?  Every ask yourself the question 'I know I did this before, but
#       which repos commit was it in?'
# With all files local, you can use any serach-in-files app to look.
#
# Companion App: all-gethub.py to get all repos for a user.

import getopt
import json
import os
import shutil
import subprocess
import sys
from urllib.request import urlopen

def Usage():
  print("Usage: %s -u <github user> -d <directory> -r <repo>" % sys.argv[0])
  print("  -u <github user>  github user name")
  print("  -d <directory>    local directory for repos commits")
  print("  -r <repo>         specific repo")
  print("  -l <listonly>     (optional) list only, no checkout")

def main():

  githubUser  = ''
  destDirectory = ''
  currentRepo = ''
  numberCommits = 10000000
  listOnly = False
  try:
    # process command arguments
    ouropts, args = getopt.getopt(sys.argv[1:],"u:d:r:n:lh")
    for o, a in ouropts:
      if   o == '-u':
        githubUser = a
      if   o == '-d':
        destDirectory = a
      if   o == '-r':
        currentRepo = a
      if   o == '-l':
        listOnly = True
      elif o == '-h':
        Usage()
        sys.exit(0)
  except getopt.GetoptError as e:
    print(str(e))
    Usage()
    sys.exit(2)

  if type(githubUser) != str or len(githubUser) <= 0:
      print("please use -u for github user")
      Usage()
      sys.exit(0)
  if type(destDirectory) != str or len(destDirectory) <= 0:
      print("please use -d for local directory")
      Usage()
      sys.exit(0)
  if type(currentRepo) != str or len(currentRepo) <= 0:
      print("please use -r for repo")
      Usage()
      sys.exit(0)

  branchesLink = "https://api.github.com/repos/{0}/{1}/branches".format(githubUser, currentRepo)
  f = urlopen(branchesLink)
  branches = json.loads(f.readline())
  print("repo: '{0}' ; total branches: {1}".format(currentRepo, len(branches)))

  os.mkdir(destDirectory)
  os.chdir(destDirectory)

  repoLink = "https://github.com/{0}/{1}.git".format(githubUser, currentRepo)
  count = 0
  for brnch in branches:
    name = brnch['name']
    #sha = brnch['commit']['sha']
    subdir = "{0}-{1}".format(currentRepo, name)
    print(subdir)
    if not listOnly:
      subprocess.call(['git', 'clone', repoLink, subdir])
      os.chdir(subdir)
      subprocess.call(['git', 'checkout', name])
      os.chdir(os.path.join('..'))


if __name__ == "__main__":
  main()