virsh: Introduce virshNodeDeviceNameCompleter

Yet again, we don't need listing by device capabilities, so flags
are unused.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>

tools/virsh-completer.c

@@ -342,3 +342,48 @@ virshNetworkNameCompleter(vshControl *ctl,
     VIR_FREE(ret);
     return NULL;
 }
+
+
+char **
+virshNodeDeviceNameCompleter(vshControl *ctl,
+                             const vshCmd *cmd ATTRIBUTE_UNUSED,
+                             unsigned int flags)
+{
+    virshControlPtr priv = ctl->privData;
+    virNodeDevicePtr *devs = NULL;
+    int ndevs = 0;
+    size_t i = 0;
+    char **ret = NULL;
+
+    virCheckFlags(0, NULL);
+
+    if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
+        return NULL;
+
+    if ((ndevs = virConnectListAllNodeDevices(priv->conn, &devs, flags)) < 0)
+        return NULL;
+
+    if (VIR_ALLOC_N(ret, ndevs + 1) < 0)
+        goto error;
+
+    for (i = 0; i < ndevs; i++) {
+        const char *name = virNodeDeviceGetName(devs[i]);
+
+        if (VIR_STRDUP(ret[i], name) < 0)
+            goto error;
+
+        virNodeDeviceFree(devs[i]);
+    }
+    VIR_FREE(devs);
+
+    return ret;
+
+ error:
+    for (; i < ndevs; i++)
+        virNodeDeviceFree(devs[i]);
+    VIR_FREE(devs);
+    for (i = 0; i < ndevs; i++)
+        VIR_FREE(ret[i]);
+    VIR_FREE(ret);
+    return NULL;
+}

tools/virsh-completer.h

@@ -54,4 +54,8 @@ char ** virshNetworkNameCompleter(vshControl *ctl,
                                   const vshCmd *cmd,
                                   unsigned int flags);
 
+char ** virshNodeDeviceNameCompleter(vshControl *ctl,
+                                     const vshCmd *cmd,
+                                     unsigned int flags);
+
 #endif

tools/virsh-nodedev.c

@@ -109,7 +109,8 @@ static const vshCmdOptDef opts_node_device_destroy[] = {
     {.name = "device",
      .type = VSH_OT_DATA,
      .flags = VSH_OFLAG_REQ,
-     .help = N_("device name or wwn pair in 'wwnn,wwpn' format")
+     .help = N_("device name or wwn pair in 'wwnn,wwpn' format"),
+     .completer = virshNodeDeviceNameCompleter,
     },
     {.name = NULL}
 };
@@ -534,6 +535,7 @@ static const vshCmdOptDef opts_node_device_dumpxml[] = {
      .type = VSH_OT_DATA,
      .flags = VSH_OFLAG_REQ,
      .help = N_("device name or wwn pair in 'wwnn,wwpn' format"),
+     .completer = virshNodeDeviceNameCompleter,
     },
     {.name = NULL}
 };
@@ -604,7 +606,8 @@ static const vshCmdOptDef opts_node_device_detach[] = {
     {.name = "device",
      .type = VSH_OT_DATA,
      .flags = VSH_OFLAG_REQ,
-     .help = N_("device key")
+     .help = N_("device key"),
+     .completer = virshNodeDeviceNameCompleter,
     },
     {.name = "driver",
      .type = VSH_OT_STRING,
@@ -670,7 +673,8 @@ static const vshCmdOptDef opts_node_device_reattach[] = {
     {.name = "device",
      .type = VSH_OT_DATA,
      .flags = VSH_OFLAG_REQ,
-     .help = N_("device key")
+     .help = N_("device key"),
+     .completer = virshNodeDeviceNameCompleter,
     },
     {.name = NULL}
 };
@@ -720,7 +724,8 @@ static const vshCmdOptDef opts_node_device_reset[] = {
     {.name = "device",
      .type = VSH_OT_DATA,
      .flags = VSH_OFLAG_REQ,
-     .help = N_("device key")
+     .help = N_("device key"),
+     .completer = virshNodeDeviceNameCompleter,
     },
     {.name = NULL}
 };
@@ -866,7 +871,8 @@ static const vshCmdInfo info_node_device_event[] = {
 static const vshCmdOptDef opts_node_device_event[] = {
     {.name = "device",
      .type = VSH_OT_STRING,
-     .help = N_("filter by node device name")
+     .help = N_("filter by node device name"),
+     .completer = virshNodeDeviceNameCompleter,
     },
     {.name = "event",
      .type = VSH_OT_STRING,