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[PATCH v3 3/4] qemu-img: allow qemu-img measure --object without a filen


From: Stefan Hajnoczi
Subject: [PATCH v3 3/4] qemu-img: allow qemu-img measure --object without a filename
Date: Tue, 11 Feb 2020 16:03:17 +0000

In most qemu-img sub-commands the --object option only makes sense when
there is a filename.  qemu-img measure is an exception because objects
may be referenced from the image creation options instead of an existing
image file.  Allow --object without a filename.

Signed-off-by: Stefan Hajnoczi <address@hidden>
---
 qemu-img.c                       | 6 ++----
 tests/qemu-iotests/178           | 2 +-
 tests/qemu-iotests/178.out.qcow2 | 8 ++++----
 tests/qemu-iotests/178.out.raw   | 8 ++++----
 4 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/qemu-img.c b/qemu-img.c
index 2b4562b9d9..0cee7bed8b 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -4912,10 +4912,8 @@ static int img_measure(int argc, char **argv)
         filename = argv[optind];
     }
 
-    if (!filename &&
-        (object_opts || image_opts || fmt || snapshot_name || sn_opts)) {
-        error_report("--object, --image-opts, -f, and -l "
-                     "require a filename argument.");
+    if (!filename && (image_opts || fmt || snapshot_name || sn_opts)) {
+        error_report("--image-opts, -f, and -l require a filename argument.");
         goto out;
     }
     if (filename && img_size != UINT64_MAX) {
diff --git a/tests/qemu-iotests/178 b/tests/qemu-iotests/178
index 51a70fe669..7cf0e27154 100755
--- a/tests/qemu-iotests/178
+++ b/tests/qemu-iotests/178
@@ -50,7 +50,7 @@ _make_test_img 1G
 $QEMU_IMG measure # missing arguments
 $QEMU_IMG measure --size 2G "$TEST_IMG" # only one allowed
 $QEMU_IMG measure "$TEST_IMG" a # only one filename allowed
-$QEMU_IMG measure --object secret,id=sec0,data=MTIzNDU2,format=base64 # 
missing filename
+$QEMU_IMG measure --object secret,id=sec0,data=MTIzNDU2,format=base64 # size 
or filename needed
 $QEMU_IMG measure --image-opts # missing filename
 $QEMU_IMG measure -f qcow2 # missing filename
 $QEMU_IMG measure -l snap1 # missing filename
diff --git a/tests/qemu-iotests/178.out.qcow2 b/tests/qemu-iotests/178.out.qcow2
index 9e7d8c44df..f59bf4b2fb 100644
--- a/tests/qemu-iotests/178.out.qcow2
+++ b/tests/qemu-iotests/178.out.qcow2
@@ -5,10 +5,10 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 qemu-img: Either --size N or one filename must be specified.
 qemu-img: --size N cannot be used together with a filename.
 qemu-img: At most one filename argument is allowed.
-qemu-img: --object, --image-opts, -f, and -l require a filename argument.
-qemu-img: --object, --image-opts, -f, and -l require a filename argument.
-qemu-img: --object, --image-opts, -f, and -l require a filename argument.
-qemu-img: --object, --image-opts, -f, and -l require a filename argument.
+qemu-img: Either --size N or one filename must be specified.
+qemu-img: --image-opts, -f, and -l require a filename argument.
+qemu-img: --image-opts, -f, and -l require a filename argument.
+qemu-img: --image-opts, -f, and -l require a filename argument.
 qemu-img: Invalid option list: ,
 qemu-img: Invalid parameter 'snapshot.foo'
 qemu-img: Failed in parsing snapshot param 'snapshot.foo'
diff --git a/tests/qemu-iotests/178.out.raw b/tests/qemu-iotests/178.out.raw
index 6478365905..404ca908d8 100644
--- a/tests/qemu-iotests/178.out.raw
+++ b/tests/qemu-iotests/178.out.raw
@@ -5,10 +5,10 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
 qemu-img: Either --size N or one filename must be specified.
 qemu-img: --size N cannot be used together with a filename.
 qemu-img: At most one filename argument is allowed.
-qemu-img: --object, --image-opts, -f, and -l require a filename argument.
-qemu-img: --object, --image-opts, -f, and -l require a filename argument.
-qemu-img: --object, --image-opts, -f, and -l require a filename argument.
-qemu-img: --object, --image-opts, -f, and -l require a filename argument.
+qemu-img: Either --size N or one filename must be specified.
+qemu-img: --image-opts, -f, and -l require a filename argument.
+qemu-img: --image-opts, -f, and -l require a filename argument.
+qemu-img: --image-opts, -f, and -l require a filename argument.
 qemu-img: Invalid option list: ,
 qemu-img: Invalid parameter 'snapshot.foo'
 qemu-img: Failed in parsing snapshot param 'snapshot.foo'
-- 
2.24.1


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