qemu/qemu-img-cmds.hx
edison 51ef67270b Copy snapshots out of QCOW2 disk
In order to backup snapshots, created from QCOW2 iamge, we want to copy snapshots out of QCOW2 disk to a seperate storage.
The following patch adds a new option in "qemu-img": qemu-img convert -f qcow2 -O qcow2 -s snapshot_name src_img bck_img.
Right now, it only supports to copy the full snapshot, delta snapshot is on the way.

Changes from V1: all the comments from Kevin are addressed:
Add read-only checking
Fix coding style
Change the name from bdrv_snapshot_load to bdrv_snapshot_load_tmp

Signed-off-by: Disheng Su <edison@cloud.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-10-22 14:49:35 +02:00

60 lines
1.7 KiB
Haxe

HXCOMM Use DEFHEADING() to define headings in both help text and texi
HXCOMM Text between STEXI and ETEXI are copied to texi version and
HXCOMM discarded from C version
HXCOMM DEF(command, callback, arg_string) is used to construct
HXCOMM command structures and help message.
HXCOMM HXCOMM can be used for comments, discarded from both texi and C
STEXI
@table @option
ETEXI
DEF("check", img_check,
"check [-f fmt] filename")
STEXI
@item check [-f @var{fmt}] @var{filename}
ETEXI
DEF("create", img_create,
"create [-f fmt] [-o options] filename [size]")
STEXI
@item create [-f @var{fmt}] [-o @var{options}] @var{filename} [@var{size}]
ETEXI
DEF("commit", img_commit,
"commit [-f fmt] filename")
STEXI
@item commit [-f @var{fmt}] @var{filename}
ETEXI
DEF("convert", img_convert,
"convert [-c] [-f fmt] [-O output_fmt] [-o options] [-s snapshot_name] filename [filename2 [...]] output_filename")
STEXI
@item convert [-c] [-f @var{fmt}] [-O @var{output_fmt}] [-o @var{options}] [-s @var{snapshot_name}] @var{filename} [@var{filename2} [...]] @var{output_filename}
ETEXI
DEF("info", img_info,
"info [-f fmt] filename")
STEXI
@item info [-f @var{fmt}] @var{filename}
ETEXI
DEF("snapshot", img_snapshot,
"snapshot [-l | -a snapshot | -c snapshot | -d snapshot] filename")
STEXI
@item snapshot [-l | -a @var{snapshot} | -c @var{snapshot} | -d @var{snapshot}] @var{filename}
ETEXI
DEF("rebase", img_rebase,
"rebase [-f fmt] [-u] -b backing_file [-F backing_fmt] filename")
STEXI
@item rebase [-f @var{fmt}] [-u] -b @var{backing_file} [-F @var{backing_fmt}] @var{filename}
ETEXI
DEF("resize", img_resize,
"resize filename [+ | -]size")
STEXI
@item resize @var{filename} [+ | -]@var{size}
@end table
ETEXI