X-Git-Url: https://code.grnet.gr/git/snf-image-creator/blobdiff_plain/a803b4490becbb6ef99a6ed2a49d01e1145c55d8..6523456eff0071b3e87af2b7ee7465ebf49d527b:/image_creator/disk.py

diff --git a/image_creator/disk.py b/image_creator/disk.py
index 70c7f87..deafb95 100644
--- a/image_creator/disk.py
+++ b/image_creator/disk.py
@@ -34,6 +34,7 @@
 from image_creator.util import get_command
 from image_creator.util import FatalError
 from image_creator.gpt import GPTPartitionTable
+from image_creator.bundle_volume import bundle_volume
 import stat
 import os
 import tempfile
@@ -77,20 +78,24 @@ class Disk(object):
         return loop
 
     def _dir_to_disk(self):
-        raise FatalError("Using a directory as media source is not supported "
-                         "yet!")
+        if self.source == '/':
+            return bundle_volume(self.out)
+        raise FatalError("Using a directory as media source is supported")
 
     def cleanup(self):
         """Cleanup internal data. This needs to be called before the
         program ends.
         """
-        while len(self._devices):
-            device = self._devices.pop()
-            device.destroy()
-
-        while len(self._cleanup_jobs):
-            job, args = self._cleanup_jobs.pop()
-            job(*args)
+        try:
+            while len(self._devices):
+                device = self._devices.pop()
+                device.destroy()
+        finally:
+            # Make sure those are executed even if one of the device.destroy
+            # methods throws exeptions.
+            while len(self._cleanup_jobs):
+                job, args = self._cleanup_jobs.pop()
+                job(*args)
 
     def snapshot(self):
         """Creates a snapshot of the original source media of the Disk
@@ -225,12 +230,14 @@ class DiskDevice(object):
     def destroy(self):
         """Destroy this DiskDevice instance."""
 
-        if self.guestfs_enabled:
-            self.g.umount_all()
-            self.g.sync()
-
-        # Close the guestfs handler if open
-        self.g.close()
+        # In new guestfs versions, there is a handy shutdown method for this
+        try:
+            if self.guestfs_enabled:
+                self.g.umount_all()
+                self.g.sync()
+        finally:
+            # Close the guestfs handler if open
+            self.g.close()
 
     def progress_callback(self, ev, eh, buf, array):
         position = array[2]
@@ -438,7 +445,8 @@ class DiskDevice(object):
                 progressbar.next()
                 while left > 0:
                     length = min(left, blocksize)
-                    sent = sendfile(dst.fileno(), src.fileno(), offset, length)
+                    _, sent = sendfile(dst.fileno(), src.fileno(), offset,
+                        length)
                     offset += sent
                     left -= sent
                     progressbar.goto((size - left) // MB)