On 02/11/2016 22:05, Andrew Jones wrote:
> On Wed, Nov 02, 2016 at 09:50:29PM +0100, Radim Krčmář wrote:
>> Not doing so hid stderr output when the test was stuck and subsequently
>> killed with ^C.
>>
>> Signed-off-by: Radim Krčmář <rkrcmar@xxxxxxxxxx>
>> ---
>> scripts/arch-run.bash | 3 +--
>> 1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/scripts/arch-run.bash b/scripts/arch-run.bash
>> index 8e75c6ed6e17..326f59484e2b 100644
>> --- a/scripts/arch-run.bash
>> +++ b/scripts/arch-run.bash
>> @@ -30,12 +30,11 @@ run_qemu ()
>>
>> # stdout to {stdout}, stderr to $errors
>> exec {stdout}>&1
>> - errors=$("${@}" 2>&1 1>&${stdout})
>> + errors=$("${@}" 2> >(tee >(cat) >&2) 1>&${stdout})
What about:
# preserve stdout and stderr output, but save stderr to $errors
exec {stdout}>&1 {stderr}>&2
errors=$("$@" 2> >(tee /dev/fd/$stderr) > /dev/fd/$stdout)
exec {stdout}>&- {stderr}>&-
(Tested in the shell but not in arch-run.bash).
Paolo
>
> Lovely...
>
> The comment above could have been changed to
>
> # ... stderr to stdout and $errors
>
>> ret=$?
>> exec {stdout}>&-
>>
>> if [ "$errors" ]; then
>> - printf "%s\n" "$errors" >&2
>> sig=$(grep 'terminating on signal' <<<"$errors")
>> if [ "$sig" ]; then
>> sig=$(sed 's/.*terminating on signal \([0-9][0-9]*\).*/\1/' <<<"$sig")
>> --
>> 2.10.1
>
> Reviewed-by: Andrew Jones <drjones@xxxxxxxxxx>
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