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import os
import shutil
from multiprocessing import cpu_count
from subprocess import call, STDOUT
from tempfile import TemporaryFile
from utils.logging import log
class GitRepository(object):
'a simple management of a git repository / source building'
def __init__(self, url, path):
'url - repository URL, path - local directory for the clone'
self._url = url
self._path = path
def _exists(self):
'check that a local repository clone exists'
# TODO verify that the repository uses the proper upstream url
return os.path.exists(self._path)
def _clone(self):
''
log("cloning repository '%s' to '%s'" % (url, path))
with TemporaryFile() as strout:
call(['git', 'clone', url, path], stdout=strout, stderr=STDOUT)
def _update(self):
'update an existing repository clone'
log("updating repository '%s' from '%s'" % (self._path, self._url))
# simply call git-pull and redirect stdout/stderr
# FIXME should verify that the repository uses the proper upstream url
with TemporaryFile() as strout:
call(['git', 'pull', self._path], stdout=strout, stderr=STDOUT)
def current_commit(self):
'returns current commit hash'
with TemporaryFile() as strout:
call(['git', 'rev-parse', 'HEAD'], cwd=self._path, stdout=strout, stderr=STDOUT)
strout.seek(0)
return strout.read().strip()
def clone_or_update(self):
'refreshes the repository (either clone from scratch or refresh)'
if self._exists():
self._update()
else:
self._clone()
log("current commit '%s'" % (self.current_commit(),))
def build_and_install(self, path, remove=True):
'builds and installs the sources'
# TODO collect output of configure and make commands
if os.path.exists(path):
shutil.rmtree(path)
with TemporaryFile() as strout:
log("configuring sources in '%s' with prefix '%s'" % (self._path, path))
call(['./configure', '--prefix', path], cwd=self._path, stdout=strout, stderr=STDOUT)
with TemporaryFile() as strout:
log("building sources and installing into '%s'" % (path,))
# cleanup and build using multiple cpus
call(['make', '-s', 'clean'], cwd=self._path, stdout=strout, stderr=STDOUT)
call(['make', '-s', '-j', str(cpu_count()), 'install'], cwd=self._path, stdout=strout, stderr=STDOUT)
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