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import os
import shutil
import socket
import tempfile
from .git import GitRepo
from tftp.backend import IWriter
from twisted.python import log
from zope import interface
class GitWriter(object):
interface.implements(IWriter)
def __init__(self, file_path, repo, remote):
file_dir = file_path.parent()
if not file_dir.exists():
file_dir.makedirs()
self.file_path = file_path
self.temp_destination = tempfile.TemporaryFile()
self.repo = os.path.abspath(repo)
self.remote = remote
self.state = 'active'
def _get_hostname(self, remote):
try:
flags = socket.NI_DGRAM | socket.NI_NOFQDN | socket.NI_NAMEREQD
(host, _) = socket.getnameinfo(remote, flags)
except:
(host, _) = remote
return host
def _do_git_commit(self):
git_repo = GitRepo(self.repo)
git_repo.stage([self.file_path.path])
if not git_repo.has_changed():
return
msg = 'Automatic commit after tftp upload'
if self.remote is not None:
msg += ' from %s' % self._get_hostname(self.remote)
committer = 'Backup Server <backup@spline.inf.fu-berlin.de>'
git_repo.commit(msg, committer)
git_repo.push('origin')
def write(self, data):
self.temp_destination.write(data)
def finish(self):
if self.state not in ('finished', 'cancelled'):
self.destination_file = self.file_path.open('w')
self.temp_destination.seek(0)
shutil.copyfileobj(self.temp_destination, self.destination_file)
self.temp_destination.close()
self.destination_file.close()
self._do_git_commit()
self.state = 'finished'
def cancel(self):
if self.state not in ('finished', 'cancelled'):
self.temp_destination.close()
self.state = 'cancelled'
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