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author | Richard Maw <richard.maw@codethink.co.uk> | 2012-03-23 14:46:14 +0000 |
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committer | Richard Maw <richard.maw@codethink.co.uk> | 2012-03-23 14:46:14 +0000 |
commit | 2987b637a787cb12a345e4f33bd7c47dd5e54e64 (patch) | |
tree | 5182a8af19db608444b108bc5ca2a4c0bba2fd44 /morphlib/builder.py | |
parent | 336177cd946a89a791c487fd20fb521f69da1156 (diff) | |
download | morph-2987b637a787cb12a345e4f33bd7c47dd5e54e64.tar.gz |
morphlib: move filesystem stuff out of builder
The system images will later need to be read, so useful commands
want to be shared
Diffstat (limited to 'morphlib/builder.py')
-rw-r--r-- | morphlib/builder.py | 47 |
1 files changed, 8 insertions, 39 deletions
diff --git a/morphlib/builder.py b/morphlib/builder.py index 74bcbab0..6b7a9983 100644 --- a/morphlib/builder.py +++ b/morphlib/builder.py @@ -450,54 +450,27 @@ class SystemBuilder(BlobBuilder): # pragma: no cover def _create_image(self, image_name): with self.build_watch('create-image'): - # FIXME: This could be done in pure python, no need to run dd - self.ex.runv(['dd', 'if=/dev/zero', 'of=' + image_name, 'bs=1', - 'seek=%d' % self.blob.morph.disk_size, - 'count=0']) + morphlib.fsutils.create_image(self.ex, image_name, self.blob.morph.disk_size) def _partition_image(self, image_name): with self.build_watch('partition-image'): - self.ex.runv(['sfdisk', image_name], feed_stdin='1,,83,*\n') + morphlib.fsutils.partition_image(self.ex, image_name) def _install_mbr(self, image_name): with self.build_watch('install-mbr'): - for path in ['/usr/lib/extlinux/mbr.bin', - '/usr/share/syslinux/mbr.bin']: - if os.path.exists(path): - self.ex.runv(['dd', 'if=' + path, 'of=' + image_name, - 'conv=notrunc']) - break + morphlib.fsutils.install_mbr(self.ex, image_name) def _setup_device_mapping(self, image_name): with self.build_watch('setup-device-mapper'): - out = self.ex.runv(['sfdisk', '-d', image_name]) - for line in out.splitlines(): - words = line.split() - if (len(words) >= 4 and - words[2] == 'start=' and - words[3] != '0,'): - n = int(words[3][:-1]) # skip trailing comma - start = n * 512 - break - - self.ex.runv(['losetup', '-o', str(start), '-f', image_name]) - - out = self.ex.runv(['losetup', '-j', image_name]) - line = out.strip() - i = line.find(':') - return line[:i] + morphlib.fsutils.setup_device_mapping(self.ex, image_name) def _create_fs(self, partition): with self.build_watch('create-filesystem'): - # FIXME: the hardcoded size of 4GB is icky but the default broke - # when we used mkfs -t ext4 - self.ex.runv(['mkfs', '-t', 'btrfs', '-L', 'baserock', - '-b', '4294967296', partition]) + morphlib.fsutils.create_fs(self.ex, partition) def _mount(self, partition, mount_point): with self.build_watch('mount-filesystem'): - os.mkdir(mount_point) - self.ex.runv(['mount', partition, mount_point]) + morphlib.fsutils.mount(self.ex, partition, mount_point) def _create_subvolume(self, path): with self.build_watch('create-factory-subvolume'): @@ -556,15 +529,11 @@ class SystemBuilder(BlobBuilder): # pragma: no cover def _unmount(self, mount_point): if mount_point is not None: with self.build_watch('unmount-filesystem'): - self.ex.runv(['umount', mount_point]) + morphlib.fsutils.unmount(self.ex, mount_point) def _undo_device_mapping(self, image_name): with self.build_watch('undo-device-mapper'): - out = self.ex.runv(['losetup', '-j', image_name]) - for line in out.splitlines(): - i = line.find(':') - device = line[:i] - self.ex.runv(['losetup', '-d', device]) + morphlib.fsutils.undo_device_mapping(self.ex, image_name) def _move_image_to_cache(self, image_name): with self.build_watch('cache-image'): |