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import os
import subprocess
from devbot import command
def _chdir(func):
def wrapped(*args, **kwargs):
orig_cwd = os.getcwd()
os.chdir(args[0].local)
result = func(*args, **kwargs)
os.chdir(orig_cwd)
return result
return wrapped
class Module:
def __init__(self, path=None, name=None, remote=None,
branch="master", tag=None, retry=10):
if path is None or name is None or remote is None:
raise RuntimeError("path, name and remote are required")
self.remote = remote
self.local = os.path.join(path, name)
self.tag = tag
self._path = path
self._name = name
self._branch = branch
self._retry = 10
def _clone(self):
os.chdir(self._path)
command.run(["git", "clone", "--progress", self.remote, self._name],
retry=self._retry)
os.chdir(self.local)
if self.tag:
command.run(["git", "checkout", self.tag])
else:
command.run(["git", "checkout", self._branch])
def update(self):
if not os.path.exists(os.path.join(self.local, ".git")):
self._clone()
return
os.chdir(self.local)
command.run(["git", "fetch"], retry=self._retry)
if self.tag:
command.run(["git", "checkout", self.tag])
else:
command.run(["git", "merge", "--ff-only",
"origin/%s" % self._branch])
@_chdir
def checkout(self, revision=None):
if revision is None:
revision = self.tag
if revision is None:
revision = self._branch
command.run(["git", "checkout", revision])
@_chdir
def describe(self):
return subprocess.check_output(["git", "describe"]).strip()
@_chdir
def diff(self):
return subprocess.check_output(["git", "diff"])
@_chdir
def get_annotation(self, tag):
# FIXME this is fragile, there must be a better way
show = subprocess.check_output(["git", "show", tag])
annotation = []
for line in show.split("\n"):
ignore = False
for start in ["tag ", "Tagger: ", "Date: "]:
if line.startswith(start):
ignore = True
if line.startswith("commit "):
break
if not ignore:
annotation.append(line)
return "\n".join(annotation)
def clean(self):
try:
os.chdir(self.local)
except OSError:
return False
command.run(["git", "clean", "-fdx"])
return True
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