github-add-hooks.py

   1 #!/usr/bin/python3
   2 import random, string, argparse, os.path, subprocess, shutil
   3 import requests, json
   4 from git_mirror import *
   5
   6 def random_string(length):
   7     alphabet = string.digits + string.ascii_letters
   8     r = random.SystemRandom()
   9     result = ""
  10     for i in range(length):
  11         result += r.choice(alphabet)
  12     return result
  13
  14 def generate_ssh_key(name, bits):
  15     subprocess.check_call(["ssh-keygen", "-f", name, "-C", name, "-b", str(bits), "-q", "-N", ""])
  16
  17 def add_deploy_key(key_name, repo_owner, repo_name, access_token):
  18     url = "https://api.github.com/repos/{owner}/{repo}/keys?access_token={token}".format(owner=repo_owner, repo=repo_name, token=access_token)
  19     data = { 'title': os.path.basename(key_name), 'key': open(key_name+".pub").read() }
  20     r = requests.post(url, data=json.dumps(data))
  21     if r.status_code >= 300:
  22         raise Exception(str(json.loads(r.content.decode('utf-8'))))
  23
  24 def add_web_hook(webhook_url, hmac_secret, repo_owner, repo_name, access_token):
  25     url = 'https://api.github.com/repos/{owner}/{repo}/hooks?access_token={token}'.format(owner=repo_owner, repo=repo_name, token=access_token)
  26     data = {
  27         'name': "web",
  28         'active': True,
  29         'events': ['push'],
  30         'config': {
  31             'url': webhook_url,
  32             'content_type': "json",
  33             'secret': hmac_secret,
  34         }
  35     }
  36     r = requests.post(url, data=json.dumps(data))
  37     if r.status_code >= 300:
  38         raise Exception(str(json.loads(r.content.decode('utf-8'))))
  39
  40 # get config and user arguments
  41 conf = read_config()
  42 parser = argparse.ArgumentParser(description='Update and build a bunch of stuff')
  43 parser.add_argument("-o", "--owner",
  44                     dest="owner",
  45                     help="The username of the owner of this hook on GitHub")
  46 parser.add_argument("-e", "--email",
  47                     dest="email",
  48                     help="An email address that gets notified in case of trouble with the hook")
  49 parser.add_argument("-l", "--local",
  50                     dest="local",
  51                     help="The local directory of the repository")
  52 parser.add_argument("-n", "--name",
  53                     dest="name", default=None,
  54                     help="The name of the repository on GitHub (defaults to the basename of the local directory)")
  55 args = parser.parse_args()
  56 args.local = os.path.abspath(args.local)
  57 assert os.path.isdir(args.local), "Local repository has to be a directory"
  58 if args.name is None:
  59     args.name = os.path.basename(args.local)
  60     if args.name.endswith(".git"):
  61         args.name = args.name[:-4]
  62 hmac_secret = random_string(64)
  63 ssh_deploy_key = os.path.join(os.path.expanduser('~/.ssh'), args.name+"-github")
  64 github_token = conf['DEFAULT']['github-token']
  65 webhook_url = conf['DEFAULT']['webhook-url']
  66
  67 # append to the configuration (after making a backup)
  68 shutil.copy(config_file, config_file+".bak")
  69 with open(config_file, 'a') as f:
  70     f.write('\n[{}]\n'.format(args.name))
  71     f.write('owner={}\n'.format(args.email))
  72     f.write('local={}\n'.format(args.local))
  73     f.write('deploy-key={}\n'.format(os.path.basename(ssh_deploy_key)))
  74     f.write('hmac-secret={}\n'.format(hmac_secret))
  75     f.write('mirror-github=git@github.com:{}/{}.git\n'.format(args.owner, args.name))
  76
  77 try:
  78     generate_ssh_key(ssh_deploy_key, 4*1024)
  79     add_deploy_key(ssh_deploy_key, args.owner, args.name, github_token)
  80     add_web_hook(webhook_url+"?repository="+args.name, hmac_secret, args.owner, args.name, github_token)
  81     print("Done! Your GitHub repository is set up.\nRemember to configure the git-mirror hook for the local repository {}, e.g. in your gitolite configuration!".format(args.local))
  82 except Exception as E:
  83     shutil.copy(config_file+".bak", config_file)
  84     raise
  85