def _commit_item(self, rev):
item = rev.item
metadata = {'__timestamp': rev.timestamp}
metadata.update(rev)
md = pickle.dumps(metadata, protocol=PICKLEPROTOCOL)
rev._fs_file_meta.write(md)
self._close_revision_meta(rev)
self._close_revision_data(rev)
data_hash = metadata[HASH_ALGORITHM]
pd = self._make_path('data', data_hash)
if item._fs_item_id is None:
self._add_item_internally(item, revmeta=rev._fs_path_meta, revdata=rev._fs_path_data, revdata_target=pd)
else:
try:
filesys.rename_no_overwrite(rev._fs_path_data, pd, delete_old=True)
except OSError, err:
if err.errno != errno.EEXIST:
raise
pm = self._make_path('meta', item._fs_item_id, '%d.rev' % rev.revno)
try:
filesys.rename_no_overwrite(rev._fs_path_meta, pm, delete_old=True)
except OSError, err:
if err.errno != errno.EEXIST:
raise
raise RevisionAlreadyExistsError("")
def _commit_item(self, rev):
item = rev.item
metadata = {'__timestamp': rev.timestamp}
metadata.update(rev)
md = pickle.dumps(metadata, protocol=PICKLEPROTOCOL)
hasdata = rev._fs_file.tell() > self._revmeta_reserved_space + 4
if hasdata and len(md) > self._revmeta_reserved_space:
oldrp = rev._fs_revpath
oldf = rev._fs_file
fd, rev._fs_revpath = tempfile.mkstemp('-rev', 'tmp-', self._path)
rev._fs_file = f = os.fdopen(fd, 'wb+')
f.write(struct.pack('!I', len(md) + 4))
# write metadata
f.write(md)
# copy already written data
oldf.seek(self._revmeta_reserved_space + 4)
shutil.copyfileobj(oldf, f)
oldf.close()
os.unlink(oldrp)
else:
if not hasdata:
rev._fs_file.seek(0)
rev._fs_file.write(struct.pack('!L', len(md) + 4))
else:
rev._fs_file.seek(4)
rev._fs_file.write(md)
rev._fs_file.close()
if item._fs_item_id is None:
self._add_item_internally(item, newrev=rev._fs_revpath)
else:
rp = os.path.join(self._path, item._fs_item_id, 'rev.%d' % rev.revno)
try:
filesys.rename_no_overwrite(rev._fs_revpath, rp, delete_old=True)
except OSError, err:
if err.errno != errno.EEXIST:
raise
raise RevisionAlreadyExistsError("")
def test_special_rename_notexists(self):
self.makefile(self.src, "src")
filesys.rename_no_overwrite(self.src, self.dst, delete_old=True)
assert not os.path.exists(self.src)
def test_win32_rename_notexists(self):
self.makefile(self.src, "src")
filesys.rename_no_overwrite(self.src, self.dst)
dst_contents = open(self.dst).read()
assert dst_contents == "src"
def test_special_rename_notexists(self):
self.makefile(self.src, "src")
filesys.rename_no_overwrite(self.src, self.dst, delete_old=True)
assert not os.path.exists(self.src)
def test_win32_rename_notexists(self):
self.makefile(self.src, "src")
filesys.rename_no_overwrite(self.src, self.dst)
dst_contents = open(self.dst).read()
assert dst_contents == "src"