qemu-img: resize: refresh options/--help

Add missing long options and --help output,
reorder options for consistency.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Message-ID: <20250531171609.197078-21-mjt@tls.msk.ru>
[kwolf: Fixed up qemu-iotests]
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

2 files changed, 42 insertions, 22 deletions

diff --git a/qemu-img.c b/qemu-img.c
index 36ef998..c16de26 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -4329,36 +4329,48 @@ static int img_resize(const img_cmd_t *ccmd, int argc, char **argv)
     for(;;) {
         static const struct option long_options[] = {
             {"help", no_argument, 0, 'h'},
-            {"object", required_argument, 0, OPTION_OBJECT},
+            {"format", required_argument, 0, 'f'},
             {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
             {"preallocation", required_argument, 0, OPTION_PREALLOCATION},
             {"shrink", no_argument, 0, OPTION_SHRINK},
+            {"quiet", no_argument, 0, 'q'},
+            {"object", required_argument, 0, OPTION_OBJECT},
             {0, 0, 0, 0}
         };
-        c = getopt_long(argc, argv, "-:f:hq",
+        c = getopt_long(argc, argv, "-hf:q",
                         long_options, NULL);
         if (c == -1) {
             break;
         }
         switch(c) {
-        case ':':
-            missing_argument(argv[optind - 1]);
-            break;
-        case '?':
-            unrecognized_option(argv[optind - 1]);
-            break;
         case 'h':
-            help();
-            break;
+            cmd_help(ccmd, "[-f FMT | --image-opts] [--preallocation PREALLOC] [--shrink]\n"
+"        [-q] [--object OBJDEF] FILE [+-]SIZE[bkKMGTPE]\n"
+,
+"  -f, --format FMT\n"
+"     specify FILE format explicitly (default: probing is used)\n"
+"  --image-opts\n"
+"     treat FILE as an option string (key=value,...), not a file name\n"
+"     (incompatible with -f|--format)\n"
+"  --shrink\n"
+"     allow operation when the new size is smaller than the original\n"
+"  --preallocation PREALLOC\n"
+"     specify FMT-specific preallocation type for the new areas\n"
+"  -q, --quiet\n"
+"     quiet mode (produce only error messages if any)\n"
+"  --object OBJDEF\n"
+"     defines QEMU user-creatable object\n"
+"  FILE\n"
+"     name of the image file, or option string (key=value,..)\n"
+"     with --image-opts, to operate on\n"
+"  [+-]SIZE[bkKMGTPE]\n"
+"     new image size or amount by which to shrink (-)/grow (+),\n"
+"     with optional multiplier suffix (powers of 1024, default is bytes)\n"
+);
+            return 0;
         case 'f':
             fmt = optarg;
             break;
-        case 'q':
-            quiet = true;
-            break;
-        case OPTION_OBJECT:
-            user_creatable_process_cmdline(optarg);
-            break;
         case OPTION_IMAGE_OPTS:
             image_opts = true;
             break;
@@ -4373,6 +4385,12 @@ static int img_resize(const img_cmd_t *ccmd, int argc, char **argv)
         case OPTION_SHRINK:
             shrink = true;
             break;
+        case 'q':
+            quiet = true;
+            break;
+        case OPTION_OBJECT:
+            user_creatable_process_cmdline(optarg);
+            break;
         case 1: /* a non-optional argument */
             if (!filename) {
                 filename = optarg;
@@ -4391,6 +4409,8 @@ static int img_resize(const img_cmd_t *ccmd, int argc, char **argv)
                 error_exit(argv[0], "Extra argument(s) in command line");
             }
             break;
+        default:
+            tryhelp(argv[0]);
         }
     }
     if (!filename && optind < argc) {
diff --git a/tests/qemu-iotests/153.out b/tests/qemu-iotests/153.out
index a8ffd01..ac3e340 100644
--- a/tests/qemu-iotests/153.out
+++ b/tests/qemu-iotests/153.out
@@ -128,8 +128,8 @@ qemu-img commit: invalid option -- 'U'
 Try 'qemu-img commit --help' for more information
 
 _qemu_img_wrapper resize -U TEST_DIR/t.qcow2 32M
-qemu-img: unrecognized option '-U'
-Try 'qemu-img --help' for more information
+qemu-img resize: invalid option -- 'U'
+Try 'qemu-img resize --help' for more information
 
 _qemu_img_wrapper rebase -U TEST_DIR/t.qcow2 -b TEST_DIR/t.qcow2.base -F qcow2
 qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock
@@ -252,8 +252,8 @@ qemu-img commit: invalid option -- 'U'
 Try 'qemu-img commit --help' for more information
 
 _qemu_img_wrapper resize -U TEST_DIR/t.qcow2 32M
-qemu-img: unrecognized option '-U'
-Try 'qemu-img --help' for more information
+qemu-img resize: invalid option -- 'U'
+Try 'qemu-img resize --help' for more information
 
 _qemu_img_wrapper rebase -U TEST_DIR/t.qcow2 -b TEST_DIR/t.qcow2.base -F qcow2
 qemu-img: Could not open 'TEST_DIR/t.qcow2': Failed to get "write" lock
@@ -357,8 +357,8 @@ qemu-img commit: invalid option -- 'U'
 Try 'qemu-img commit --help' for more information
 
 _qemu_img_wrapper resize -U TEST_DIR/t.qcow2 32M
-qemu-img: unrecognized option '-U'
-Try 'qemu-img --help' for more information
+qemu-img resize: invalid option -- 'U'
+Try 'qemu-img resize --help' for more information
 
 _qemu_img_wrapper rebase -U TEST_DIR/t.qcow2 -b TEST_DIR/t.qcow2.base -F qcow2