mirror of
https://github.com/ceph/ceph
synced 2024-12-28 06:23:08 +00:00
69 lines
2.3 KiB
Python
69 lines
2.3 KiB
Python
import logging
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import os
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import shutil
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import subprocess
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import time
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log = logging.getLogger(__name__)
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def checkout_repo(repo_url, dest_path, branch):
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"""
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Use git to either clone or update a given repo, forcing it to switch to the
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specified branch.
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:param repo_url: The full URL to the repo (not including the branch)
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:param dest_path: The full path to the destination directory
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:param branch: The branch.
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:raises: BranchNotFoundError if the branch is not found;
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RuntimeError for other errors
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"""
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if not os.path.isdir(dest_path):
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log.info("Cloning %s %s from upstream", repo_url, branch)
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proc = subprocess.Popen(
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('git', 'clone', '--branch', branch, repo_url, dest_path),
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cwd=os.path.dirname(dest_path),
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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not_found_str = "Remote branch %s not found" % branch
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out = proc.stdout.read()
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if proc.wait() != 0:
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log.error(out)
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if not_found_str in out:
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raise BranchNotFoundError(branch, repo_url)
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else:
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raise RuntimeError("git clone failed!")
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elif time.time() - os.stat('/etc/passwd').st_mtime > 60:
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# only do this at most once per minute
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log.info("Fetching %s from upstream", branch)
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out = subprocess.check_output(('git', 'fetch', '-p', 'origin'),
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cwd=dest_path)
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if out:
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log.info(out)
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out = subprocess.check_output(('touch', dest_path))
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if out:
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log.info(out)
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else:
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log.info("%s was just updated; assuming it is current", branch)
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# This try/except block will notice if the requested branch doesn't
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# exist, whether it was cloned or fetched.
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try:
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subprocess.check_output(
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('git', 'reset', '--hard', 'origin/%s' % branch),
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cwd=dest_path,
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)
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except subprocess.CalledProcessError:
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shutil.rmtree(dest_path)
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raise BranchNotFoundError(branch, repo_url)
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class BranchNotFoundError(ValueError):
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def __init__(self, branch, repo):
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self.branch = branch
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self.repo = repo
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def __str__(self):
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return "Branch {branch} not found in repo: {repo}".format(
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branch=self.branch, repo=self.repo)
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