def add_pack(self):
"""Add a new pack to this object store.
:return: Fileobject to write to and a commit function to
call when the pack is finished.
"""
fd, path = tempfile.mkstemp(dir=self.pack_dir, suffix=".pack")
f = fs.open(path, 'wb', OSError)
def commit():
os.fsync(fd)
f.close()
if os.path.getsize(path) > 0:
return self.move_in_pack(path)
else:
os.remove(path)
return None
return f, commit
def add_thin_pack(self):
"""Add a new thin pack to this object store.
Thin packs are packs that contain deltas with parents that exist
in a different pack.
"""
fd, path = tempfile.mkstemp(dir=self.pack_dir, suffix=".pack")
f = fs.open(path, 'wb', OSError)
def commit():
os.fsync(fd)
f.close()
if os.path.getsize(path) > 0:
return self.move_in_thin_pack(path)
else:
os.remove(path)
return None
return f, commit
def GitFile(filename, mode='rb', bufsize=-1):
"""Create a file object that obeys the git file locking protocol.
:return: a builtin file object or a _GitFile object
:note: See _GitFile for a description of the file locking protocol.
Only read-only and write-only (binary) modes are supported; r+, w+, and a
are not. To read and write from the same file, you can take advantage of
the fact that opening a file for write does not actually open the file you
request.
"""
if 'a' in mode:
raise IOError('append mode not supported for Git files')
if '+' in mode:
raise IOError('read/write mode not supported for Git files')
if 'b' not in mode:
raise IOError('text mode not supported for Git files')
if 'w' in mode:
return _GitFile(filename, mode, bufsize)
else:
return fs.open(filename, mode, IOError)
