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Re: [Qemu-devel] [PATCH 1/6] tests/docker/Makefile.include: fix diff-ind
From: |
Fam Zheng |
Subject: |
Re: [Qemu-devel] [PATCH 1/6] tests/docker/Makefile.include: fix diff-index call |
Date: |
Tue, 1 Nov 2016 18:38:48 +0800 |
User-agent: |
Mutt/1.7.1 (2016-10-04) |
On Tue, 11/01 10:02, Alex Bennée wrote:
>
> Fam Zheng <address@hidden> writes:
>
> > On Fri, 10/28 17:33, Alex Bennée wrote:
> >> The whole thing is wrapped inside a call quiet-command as well as being
> >> the actual call taking a --quiet argument so the redirect is
> >> superfluous. For reasons I have yet to determine this also seems to be
> >> causing the source preparation step to skip stashing work tree stuff.
> >>
> >> Signed-off-by: Alex Bennée <address@hidden>
> >>
> >> ---
> >> TODO:
> >> - properly understand the failure
> >
> > Yep, I don't see the bug on my machine (Fedora 24, git 2.7.4). What about
> > the
> > removed "--"? Does that make a difference for you?
>
> Nope - it seems to be the &>/dev/null that triggers the problem - but
> only in the Makefile. Running the commands from the command line works
> as expected.
>
> However why do we need the redirect here anyway considering the call
> quiet-command?
It's to force suppressing output, while quiet-command only suppresses the
echoing of the command itself. Since we have "--quiet" here, does "2>/dev/null"
work for you?
Fam
>
> >
> >> ---
> >> tests/docker/Makefile.include | 2 +-
> >> 1 file changed, 1 insertion(+), 1 deletion(-)
> >>
> >> diff --git a/tests/docker/Makefile.include b/tests/docker/Makefile.include
> >> index 3f15d5a..d91e28b 100644
> >> --- a/tests/docker/Makefile.include
> >> +++ b/tests/docker/Makefile.include
> >> @@ -20,7 +20,7 @@ IMAGES ?= %
> >> # Make archive from git repo $1 to tar.gz $2
> >> make-archive-maybe = $(if $(wildcard $1/*), \
> >> $(call quiet-command, \
> >> - (cd $1; if git diff-index --quiet HEAD -- &>/dev/null; then \
> >> + (cd $1; if git diff-index --quiet HEAD; then \
> >> git archive -1 HEAD --format=tar.gz; \
> >> else \
> >> git archive -1 $$(git stash create) --format=tar.gz; \
> >> --
> >> 2.10.1
> >>
> >>
>
>
> --
> Alex Bennée