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[PATCH 14/27] qemu-img: snapshot: allow specifying -f fmt


From: Michael Tokarev
Subject: [PATCH 14/27] qemu-img: snapshot: allow specifying -f fmt
Date: Wed, 24 Apr 2024 11:50:22 +0300

For consistency with other commands, and since it already
accepts --image-opts, allow specifying -f fmt too.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
---
 docs/tools/qemu-img.rst | 2 +-
 qemu-img-cmds.hx        | 4 ++--
 qemu-img.c              | 9 ++++++---
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/docs/tools/qemu-img.rst b/docs/tools/qemu-img.rst
index 3653adb963..9b628c4da5 100644
--- a/docs/tools/qemu-img.rst
+++ b/docs/tools/qemu-img.rst
@@ -663,7 +663,7 @@ Command description:
   bitmap support, or 0 if bitmaps are supported but there is nothing
   to copy.
 
-.. option:: snapshot [--object OBJECTDEF] [--image-opts] [-U] [-q] [-l | -a 
SNAPSHOT | -c SNAPSHOT | -d SNAPSHOT] FILENAME
+.. option:: snapshot [--object OBJECTDEF] [-f FMT | --image-opts] [-U] [-q] 
[-l | -a SNAPSHOT | -c SNAPSHOT | -d SNAPSHOT] FILENAME
 
   List, apply, create or delete snapshots in image *FILENAME*.
 
diff --git a/qemu-img-cmds.hx b/qemu-img-cmds.hx
index c9dd70a892..2c5a8a28f9 100644
--- a/qemu-img-cmds.hx
+++ b/qemu-img-cmds.hx
@@ -84,9 +84,9 @@ SRST
 ERST
 
 DEF("snapshot", img_snapshot,
-    "snapshot [--object objectdef] [--image-opts] [-U] [-q] [-l | -a snapshot 
| -c snapshot | -d snapshot] filename")
+    "snapshot [--object objectdef] [-f fmt | --image-opts] [-U] [-q] [-l | -a 
snapshot | -c snapshot | -d snapshot] filename")
 SRST
-.. option:: snapshot [--object OBJECTDEF] [--image-opts] [-U] [-q] [-l | -a 
SNAPSHOT | -c SNAPSHOT | -d SNAPSHOT] FILENAME
+.. option:: snapshot [--object OBJECTDEF] [-f FMT | --image-opts] [-U] [-q] 
[-l | -a SNAPSHOT | -c SNAPSHOT | -d SNAPSHOT] FILENAME
 ERST
 
 DEF("rebase", img_rebase,
diff --git a/qemu-img.c b/qemu-img.c
index 84e2e53fb7..8adc324496 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -3595,7 +3595,7 @@ static int img_snapshot(const img_cmd_t *ccmd, int argc, 
char **argv)
     BlockBackend *blk;
     BlockDriverState *bs;
     QEMUSnapshotInfo sn;
-    char *filename, *snapshot_name = NULL;
+    char *filename, *fmt = NULL, *snapshot_name = NULL;
     int c, ret = 0, bdrv_oflags;
     int action = 0;
     bool quiet = false;
@@ -3614,7 +3614,7 @@ static int img_snapshot(const img_cmd_t *ccmd, int argc, 
char **argv)
             {"force-share", no_argument, 0, 'U'},
             {0, 0, 0, 0}
         };
-        c = getopt_long(argc, argv, ":la:c:d:hqU",
+        c = getopt_long(argc, argv, ":la:c:d:f:hqU",
                         long_options, NULL);
         if (c == -1) {
             break;
@@ -3629,6 +3629,9 @@ static int img_snapshot(const img_cmd_t *ccmd, int argc, 
char **argv)
         case 'h':
             help();
             return 0;
+        case 'f':
+            fmt = optarg;
+            break;
         case 'l':
             if (action) {
                 error_exit(argv[0], "Cannot mix '-l', '-a', '-c', '-d'");
@@ -3682,7 +3685,7 @@ static int img_snapshot(const img_cmd_t *ccmd, int argc, 
char **argv)
     filename = argv[optind++];
 
     /* Open the image */
-    blk = img_open(image_opts, filename, NULL, bdrv_oflags, false, quiet,
+    blk = img_open(image_opts, filename, fmt, bdrv_oflags, false, quiet,
                    force_share);
     if (!blk) {
         return 1;
-- 
2.39.2




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