mirror of
https://github.com/zulip/zulip.git
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95 lines
2.6 KiB
Python
Executable File
95 lines
2.6 KiB
Python
Executable File
#!/usr/bin/env python
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from __future__ import print_function
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import datetime
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import errno
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import os
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import pwd
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import shutil
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import subprocess
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import sys
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import time
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if False:
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from typing import Sequence
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DEPLOYMENTS_DIR = "/home/zulip/deployments"
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LOCK_DIR = os.path.join(DEPLOYMENTS_DIR, "lock")
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TIMESTAMP_FORMAT = '%Y-%m-%d-%H-%M-%S'
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# Color codes
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OKBLUE = '\033[94m'
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OKGREEN = '\033[92m'
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WARNING = '\033[93m'
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FAIL = '\033[91m'
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ENDC = '\033[0m'
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def subprocess_text_output(args):
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# type: (Sequence[str]) -> str
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return subprocess.check_output(args, universal_newlines=True).strip()
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def su_to_zulip():
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# type: () -> None
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pwent = pwd.getpwnam("zulip")
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os.setgid(pwent.pw_gid)
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os.setuid(pwent.pw_uid)
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os.environ['HOME'] = os.path.abspath(os.path.join(DEPLOYMENTS_DIR, '..'))
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def make_deploy_path():
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# type: () -> str
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timestamp = datetime.datetime.now().strftime(TIMESTAMP_FORMAT)
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return os.path.join(DEPLOYMENTS_DIR, timestamp)
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if __name__ == '__main__':
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cmd = sys.argv[1]
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if cmd == 'make_deploy_path':
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print(make_deploy_path())
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def mkdir_p(path):
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# type: (str) -> None
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# Python doesn't have an analog to `mkdir -p` < Python 3.2.
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try:
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os.makedirs(path)
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except OSError as e:
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if e.errno == errno.EEXIST and os.path.isdir(path):
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pass
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else:
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raise
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def get_deployment_lock(error_rerun_script):
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# type: (str) -> None
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start_time = time.time()
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got_lock = False
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while time.time() - start_time < 300:
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try:
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os.mkdir(LOCK_DIR)
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got_lock = True
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break
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except OSError:
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print(WARNING + "Another deployment in progress; waiting for lock... "
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+ "(If no deployment is running, rmdir %s)" % (LOCK_DIR,) + ENDC)
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sys.stdout.flush()
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time.sleep(3)
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if not got_lock:
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print(FAIL + "Deployment already in progress. Please run\n"
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+ " %s\n" % (error_rerun_script,)
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+ "manually when the previous deployment finishes, or run\n"
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+ " rmdir %s\n" % (LOCK_DIR,)
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+ "if the previous deployment crashed."
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+ ENDC)
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sys.exit(1)
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def release_deployment_lock():
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# type: () -> None
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shutil.rmtree(LOCK_DIR)
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def run(args):
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# type: (Sequence[str]) -> int
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# Output what we're doing in the `set -x` style
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print("+ %s" % (" ".join(args)))
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process = subprocess.Popen(args)
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rc = process.wait()
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if rc:
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raise subprocess.CalledProcessError(rc, args) # type: ignore # https://github.com/python/typeshed/pull/329
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return 0
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