Re: [PATCH] iotests: Fix test 104 under NBD

["Daniel P. Berrangé" <berrange@redhat.com>]

On Fri, May 19, 2023 at 10:02:16AM -0500, Eric Blake wrote:
> In the past, commit a231cb27 ("iotests: Fix 104 for NBD", v2.3.0)
> added an additional filter to _filter_img_info to rewrite NBD URIs
> into the expected output form.  This recently broke when we tweaked
> tests to run in a per-format directory, which did not match the regex,
> because _img_info itself is now already changing
> SOCK_DIR=/tmp/tmpphjfbphd/raw-nbd-104 into
> /tmp/tmpphjfbphd/IMGFMT-nbd-104 prior to _img_info_filter getting a
> chance to further filter things.
> 
> While diagnosing the problem, I also noticed some filter lines
> rendered completely useless by a typo when we switched from TCP to
> Unix sockets for NBD (in shell, '\\+' is different from "\\+" (one
> gives two backslash to the regex, matching the literal 2-byte sequence
> <\+> after a single digit; the other gives one backslash to the regex,
> as the metacharacter \+ to match one or more of <[0-9]>); since the
> literal string <nbd://127.0.0.1:0\+> is not a valid URI, that regex
> hasn't been matching anything for years so it is fine to just drop it
> rather than fix the typo.
> 
> Fixes: f3923a72 ("iotests: Switch nbd tests to use Unix rather than TCP", v4.2.0)
> Fixes: 5ba7db09 ("iotests: always use a unique sub-directory per test", v8.0.0)
> Signed-off-by: Eric Blake <eblake@redhat.com>
> ---
>  tests/qemu-iotests/common.filter | 4 +---
>  tests/qemu-iotests/common.rc     | 3 ++-
>  2 files changed, 3 insertions(+), 4 deletions(-)

I was about submit something similar to common.rc

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>



With regards,
Daniel
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