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[libvirt] [PATCH 3/3] storage: Add virsh support for fs pool formating



---
 tools/virsh.c   |   14 ++++++++++++--
 tools/virsh.pod |   11 ++++++++++-
 2 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/tools/virsh.c b/tools/virsh.c
index 49034ae..cd87107 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -7134,6 +7134,8 @@ static const vshCmdInfo info_pool_build[] = {
 
 static const vshCmdOptDef opts_pool_build[] = {
     {"pool", VSH_OT_DATA, VSH_OFLAG_REQ, N_("pool name or uuid")},
+    {"no-overwrite", VSH_OT_BOOL, 0, N_("do not overwrite an existing pool of this type")},
+    {"overwrite", VSH_OT_BOOL, 0, N_("overwrite any existing data")},
     {NULL, 0, 0, NULL}
 };
 
@@ -7143,6 +7145,7 @@ cmdPoolBuild(vshControl *ctl, const vshCmd *cmd)
     virStoragePoolPtr pool;
     bool ret = true;
     const char *name;
+    unsigned int flags = 0;
 
     if (!vshConnectionUsability(ctl, ctl->conn))
         return false;
@@ -7150,7 +7153,15 @@ cmdPoolBuild(vshControl *ctl, const vshCmd *cmd)
     if (!(pool = vshCommandOptPool(ctl, cmd, "pool", &name)))
         return false;
 
-    if (virStoragePoolBuild(pool, 0) == 0) {
+    if (vshCommandOptBool (cmd, "no-overwrite")) {
+        flags |= VIR_STORAGE_POOL_BUILD_NO_OVERWRITE;
+    }
+
+    if (vshCommandOptBool (cmd, "overwrite")) {
+        flags |= VIR_STORAGE_POOL_BUILD_OVERWRITE;
+    }
+
+    if (virStoragePoolBuild(pool, flags) == 0) {
         vshPrint(ctl, _("Pool %s built\n"), name);
     } else {
         vshError(ctl, _("Failed to build pool %s"), name);
@@ -7162,7 +7173,6 @@ cmdPoolBuild(vshControl *ctl, const vshCmd *cmd)
     return ret;
 }
 
-
 /*
  * "pool-destroy" command
  */
diff --git a/tools/virsh.pod b/tools/virsh.pod
index 2cd0f73..27e6f05 100644
--- a/tools/virsh.pod
+++ b/tools/virsh.pod
@@ -1274,10 +1274,19 @@ where the query is performed.
 
 Configure whether I<pool> should automatically start at boot.
 
-=item B<pool-build> I<pool-or-uuid>
+=item B<pool-build> I<pool-or-uuid> [I<--overwrite>] [I<--no-overwrite>]
 
 Build a given pool.
 
+Options I<--overwrite> and I<--no-overwrite> can only be used for
+B<pool-build> a filesystem pool. If neither of them is specified,
+B<pool-build> on a filesystem pool only makes the directory; If
+I<--no-overwrite> is specified, it probes to determine if a
+filesystem already exists on the target device, returning an error
+if exists, or using mkfs to format the target device if not; If
+I<--overwrite> is specified, mkfs is always executed, any existed
+data on the target device is overwritten unconditionally.
+
 =item B<pool-create> I<file>
 
 Create and start a pool object from the XML I<file>.
-- 
1.7.6


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