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Rather than having to do: $ virsh snapshot-revert dom $(virsh snapshot-current dom --name) I thought it would be nice to do: $ virsh snapshot-revert dom --current I didn't add 'virsh snapshot-dumpxml --current' since we already have 'virsh snapshot-current' for the same task. snapshot-list accepted a name but did not require it, and that remains the case, with --current serving in place of that name. For all other commands, name used to be required, and can now be replaced by --current; I intentionally made it so that omitting both --current and a name is an error (having the absence of a name imply --current seems just a bit too magic, so --current must be explicit). I also had to keep snapshot-edit backwards-compatible, as the only command that already had a --current argument alongside a name, which still works to both edit a named snapshot and make it current. * tools/virsh.c (vshLookupSnapshot): New helper function. (cmdSnapshotEdit, cmdSnapshotList, cmdSnapshotParent) (cmdSnapshotDelete, cmdDomainSnapshotRevert): Use it, adding an option where needed. * tools/virsh.pod (snapshot-delete, snapshot-edit) (snapshot-list, snapshot-parent, snapshot-revert): Document use of --current. (snapshot-dumpxml): Mention alternative.
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>