vng: arch: list supported arch in case of errors

Instead of only listing the one passed by the user: most likely, the user will want to know what to use. While at it, add a comment at the end of ARCH_MAPPING to think about updating get_host_arch() when adding a new arch. Signed-off-by: Matthieu Baerts (NGI0) <[email protected]>
arighi · Feb 10, 2025 · 1168b36 · 1168b36
1 parent d8910f7
commit 1168b36
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/virtme_ng/run.py b/virtme_ng/run.py
@@ -596,6 +596,7 @@ def arg_fail(message, show_usage=True):
         "kernel_target": "Image",
         "kernel_image": "Image",
     },
+    # adding a new arch? Please also update get_host_arch().
 }
 
 MAKE_COMMAND = "make LOCALVERSION=-virtme"
@@ -911,7 +912,11 @@ def _get_virtme_user(self, args):
     def _get_virtme_arch(self, args):
         if args.arch is not None:
             if args.arch not in ARCH_MAPPING:
-                arg_fail(f"unsupported architecture: {args.arch}")
+                arg_fail(
+                    f"unsupported architecture ({args.arch}), "
+                    f"available: {' '.join(ARCH_MAPPING)}",
+                    show_usage=False
+                )
             if args.root is None and get_host_arch() != args.arch:
                 arg_fail("--arch used without --root")
             if "max-cpus" in ARCH_MAPPING[args.arch]: