my_repositories/__scripts__/init.py

import json
import os


class repo(dict):
    KEY_URL = "URL"
    KEY_TARGET = "TARGET"

    INIT_SCRIPTNAME = "reposinit"

    def __init__(self, data, base_url):
        self.__base_url__ = base_url
        dict.__init__(self, data)

    def print_gn(self, txt):
        print("\033[1;32m" + txt + "\033[00m")

    def print_ye(self, txt):
        print("\033[1;33m" + txt + "\033[00m")

    def init_repo(self):
        if os.path.exists(self.target_path()):
            self.print_ye("skip:  Cloning repository %s (already exists)..." % self.repo_url())
        else:
            self.print_gn("clone: Cloning repository %s..." % self.repo_url())
            os.system("git clone %s %s" % (self.url(), self.target_path()))
            if os.path.exists(os.path.join(self.target_path(), self.INIT_SCRIPTNAME)):
                self.print_gn("exec: Executing init script for repository %s..." % self.repo_url())
                os.system("cd %s; ./%s" % (self.target_path(), self.INIT_SCRIPTNAME))
        print()

    def submodules(self):
        return self[self.KEY_SUBMODULES]

    def url(self):
        return self.__base_url__ + '/' + self.repo_url()

    def repo_url(self):
        return self[self.KEY_URL]

    def target_path(self):
        return os.path.join(self[self.KEY_TARGET], os.path.basename(self.url()) if not os.path.basename(self.url()).lower().endswith('.git') else os.path.basename(self.url())[:-4])


class repositories(dict):
    KEY_BASEURL = "BASE_URL"
    KEY_REPOS = "REPO_LIST"

    def __init__(self, filename):
        with open(filename, 'r') as fh:
            data = json.loads(fh.read())
        for i in range(0, len(data[self.KEY_REPOS])):
            data[self.KEY_REPOS][i] = repo(data[self.KEY_REPOS][i], data[self.KEY_BASEURL])
        dict.__init__(self, data)

    def repolist(self):
        return self[self.KEY_REPOS]

if __name__ == "__main__":
    rl = repositories("repos.json")
    for r in rl.repolist():
        r.init_repo()