Re: [kvm-unit-tests RFC v2 3/4] run_tests/mkstandalone: add arch dependent function to `for_each_unittest`

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On Fri, Aug 14, 2020 at 03:29 PM +0200, Andrew Jones <drjones@xxxxxxxxxx> wrote:
> On Fri, Aug 14, 2020 at 03:06:36PM +0200, Marc Hartmayer wrote:
>> On Thu, Aug 13, 2020 at 10:30 AM +0200, Andrew Jones <drjones@xxxxxxxxxx> wrote:
>> > On Wed, Aug 12, 2020 at 11:27:04AM +0200, Marc Hartmayer wrote:
>> >> This allows us, for example, to auto generate a new test case based on
>> >> an existing test case.
>> >> 
>> >> Signed-off-by: Marc Hartmayer <mhartmay@xxxxxxxxxxxxx>
>> >> ---
>> >>  run_tests.sh            |  2 +-
>> >>  scripts/common.bash     | 13 +++++++++++++
>> >>  scripts/mkstandalone.sh |  2 +-
>> >>  3 files changed, 15 insertions(+), 2 deletions(-)
>> >> 
>> >> diff --git a/run_tests.sh b/run_tests.sh
>> >> index 24aba9cc3a98..23658392c488 100755
>> >> --- a/run_tests.sh
>> >> +++ b/run_tests.sh
>> >> @@ -160,7 +160,7 @@ trap "wait; exit 130" SIGINT
>> >>     # preserve stdout so that process_test_output output can write TAP to it
>> >>     exec 3>&1
>> >>     test "$tap_output" == "yes" && exec > /dev/null
>> >> -   for_each_unittest $config run_task
>> >> +   for_each_unittest $config run_task arch_cmd
>> >
>> > Let's just require that arch cmd hook be specified by the "$arch_cmd"
>> > variable. Then we don't need to pass it to for_each_unittest.
>> 
>> Where is it then specified?
>
> Just using it that way in the source is enough. We should probably call
> it $ARCH_CMD to indicate that it's a special variable. Also, we could
> return it from a $(arch_cmd) function, which is how $(migration_cmd) and
> $(timeout_cmd) work.

My first approach was different…

First we source the (common) functions that could be overridden by
architecture dependent code, and then source the architecture dependent
code. But I’m not sure which approach is cleaner - if you prefer your
proposed solution with the global variables I can change it.

Thanks for the feedback!

[…snip]

-- 
Kind regards / Beste Grüße
   Marc Hartmayer

IBM Deutschland Research & Development GmbH
Vorsitzender des Aufsichtsrats: Gregor Pillen 
Geschäftsführung: Dirk Wittkopp
Sitz der Gesellschaft: Böblingen
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