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qemu-img convert: Deprecate using -n and -o together

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bdrv_create options specified with -o have no effect when skipping image
creation with -n, so this doesn't make sense. Warn against the misuse
and deprecate the combination so we can make it a hard error later.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Kevin Wolf 2019-08-09 11:09:21 +02:00
parent cf3129323f
commit ffd8e8ffd5
2 changed files with 12 additions and 0 deletions
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5
qemu-img.c
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@ -2231,6 +2231,11 @@ static int img_convert(int argc, char **argv)
goto fail_getopt;
}
if (skip_create && options) {
warn_report("-o has no effect when skipping image creation");
warn_report("This will become an error in future QEMU versions.");
}
s.src_num = argc - optind - 1;
out_filename = s.src_num >= 1 ? argv[argc - 1] : NULL;