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virsh: Two new fields for command domblklist

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Disk "type" and "device" are generally interesting stuff the
user may want to known, too. To not break any scripts which
parsed the output field, a new option "--details" is introduced
to output the two introduced fields.
This commit is contained in:
Osier Yang 2012-01-13 18:03:12 +08:00
parent 5edfcaae6f
commit 5b4071333b
2 changed files with 38 additions and 11 deletions
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32
tools/virsh.c
View File

@ -1906,7 +1906,7 @@ cmdDomblkinfo(vshControl *ctl, const vshCmd *cmd)
*/
static const vshCmdInfo info_domblklist[] = {
{"help", N_("list all domain blocks")},
{"desc", N_("Get the names of block devices for a domain.")},
{"desc", N_("Get the summary of block devices for a domain.")},
{NULL, NULL}
};
@ -1914,6 +1914,8 @@ static const vshCmdOptDef opts_domblklist[] = {
{"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or uuid")},
{"inactive", VSH_OT_BOOL, 0,
N_("get inactive rather than running configuration")},
{"details", VSH_OT_BOOL, 0,
N_("additionally display the type and device value")},
{NULL, 0, 0, NULL}
};
@ -1929,10 +1931,13 @@ cmdDomblklist(vshControl *ctl, const vshCmd *cmd)
int ndisks;
xmlNodePtr *disks = NULL;
int i;
bool details = false;
if (vshCommandOptBool(cmd, "inactive"))
flags |= VIR_DOMAIN_XML_INACTIVE;
details = vshCommandOptBool(cmd, "details");
if (!vshConnectionUsability(ctl, ctl->conn))
return false;
@ -1951,14 +1956,27 @@ cmdDomblklist(vshControl *ctl, const vshCmd *cmd)
if (ndisks < 0)
goto cleanup;
vshPrint(ctl, "%-10s %s\n", _("Target"), _("Source"));
if (details)
vshPrint(ctl, "%-10s %-10s %-10s %s\n", _("Type"),
_("Device"), _("Target"), _("Source"));
else
vshPrint(ctl, "%-10s %s\n", _("Target"), _("Source"));
vshPrint(ctl, "------------------------------------------------\n");
for (i = 0; i < ndisks; i++) {
char *type;
char *device;
char *target;
char *source;
ctxt->node = disks[i];
if (details) {
type = virXPathString("string(./@type)", ctxt);
device = virXPathString("string(./@device)", ctxt);
}
target = virXPathString("string(./target/@dev)", ctxt);
if (!target) {
vshError(ctl, "unable to query block list");
@ -1968,7 +1986,15 @@ cmdDomblklist(vshControl *ctl, const vshCmd *cmd)
"|./source/@dev"
"|./source/@dir"
"|./source/@name)", ctxt);
vshPrint(ctl, "%-10s %s\n", target, source ? source : "-");
if (details) {
vshPrint(ctl, "%-10s %-10s %-10s %s\n", type, device,
target, source ? source : "-");
VIR_FREE(type);
VIR_FREE(device);
} else {
vshPrint(ctl, "%-10s %s\n", target, source ? source : "-");
}
VIR_FREE(target);
VIR_FREE(source);
}

17
tools/virsh.pod
View File

@ -512,15 +512,16 @@ to a unique target name (<target dev='name'/>) or source file (<source
file='name'/>) for one of the disk devices attached to I<domain> (see
also B<domblklist> for listing these names).
=item B<domblklist> I<domain> [I<--inactive>]
=item B<domblklist> I<domain> [I<--inactive>] [I<--details>]
Print a table showing the names of all block devices associated with
I<domain>, as well as the path to the source of each device. If
I<--inactive> is specified, query the block devices that will be used
on the next boot, rather than those currently in use by a running
domain. Other contexts that require a block device name (such as
I<domblkinfo> or I<snapshot-create> for disk snapshots) will accept
either target or unique source names printed by this command.
Print a table showing the brief information of all block devices
associated with I<domain>. If I<--inactive> is specified, query the
block devices that will be used on the next boot, rather than those
currently in use by a running domain. If I<--details> is specified,
disk type and device value will also be printed. Other contexts
that require a block device name (such as I<domblkinfo> or
I<snapshot-create> for disk snapshots) will accept either target
or unique source names printed by this command.
=item B<domiflist> I<domain> [I<--inactive>]