A script to pull all git repositories in sub directories.

pullall.sh

#!/usr/bin/env python3
import threading
import glob
import os.path
import time

class myThread (threading.Thread):
    def __init__(self, threadID, name, repo):
        threading.Thread.__init__(self)
        self.threadID = threadID
        self.name = name
        self.repo = repo

    def run(self):
        print("Starting " + self.name)
        # Get lock to synchronize threads
        threadLock.acquire()
        pull_repo(self.name, self.repo)
        # Free lock to release next thread
        threadLock.release()

def pull_repo(threadName, repo):
    os.system('bash -c "cd ' + repo + ' && git pull"')

directories = glob.glob('./*')
repos = [x for x in directories if os.path.isdir(x) and os.path.isdir(x + "/.git")]

threadLock = threading.Lock()
threads = []

for i in range(len(repos)):
    while threading.activeCount() > 3:
        time.sleep(0.05)
    t = myThread(i, "Job " + str(i), repos[i])
    t.start()
    threads.append(t)

# Wait for all threads to complete
for t in threads:
    t.join()

print("Done. Have a nice day!")