diff options
-rw-r--r-- | writeexts.py | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/writeexts.py b/writeexts.py index 31e7a0b6..7030c0b5 100644 --- a/writeexts.py +++ b/writeexts.py @@ -24,6 +24,7 @@ import time import tempfile import errno import stat +import contextlib import morphlib @@ -147,25 +148,39 @@ class WriteExtension(cliapp.Application): def create_local_system(self, temp_root, raw_disk): '''Create a raw system image locally.''' + + with self.created_disk_image(raw_disk): + self.format_btrfs(raw_disk) + self.create_system(temp_root, raw_disk) + + @contextlib.contextmanager + def created_disk_image(self, location): size = self.get_disk_size() if not size: raise cliapp.AppException('DISK_SIZE is not defined') - self.create_raw_disk_image(raw_disk, size) + self.create_raw_disk_image(location, size) + try: + yield + except BaseException: + os.unlink(location) + raise + + def format_btrfs(self, raw_disk): try: self.mkfs_btrfs(raw_disk) - mp = self.mount(raw_disk) except BaseException: sys.stderr.write('Error creating disk image') - os.remove(raw_disk) raise + + def create_system(self, temp_root, raw_disk): try: + mp = self.mount(raw_disk) self.create_btrfs_system_layout( temp_root, mp, version_label='factory', disk_uuid=self.get_uuid(raw_disk)) except BaseException, e: sys.stderr.write('Error creating Btrfs system layout') self.unmount(mp) - os.remove(raw_disk) raise else: self.unmount(mp) |