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Date: Wed, 2 Oct 2013 11:42:20 +0200 From: Ingo Molnar <mingo@...nel.org> To: Ramkumar Ramachandra <artagnon@...il.com> Cc: LKML <linux-kernel@...r.kernel.org>, Namhyung Kim <namhyung@...il.com>, Arnaldo Carvalho de Melo <acme@...stprotocols.net> Subject: Re: [PATCH] perf tool: simplify a git command in PERF-VERSION-GEN * Ramkumar Ramachandra <artagnon@...il.com> wrote: > Replace a complex git log invocation with a simpler git rev-parse > invocation. > > Cc: Ingo Molnar <mingo@...nel.org> > Cc: Namhyung Kim <namhyung@...il.com> > Cc: Arnaldo Carvalho de Melo <acme@...stprotocols.net> > Signed-off-by: Ramkumar Ramachandra <artagnon@...il.com> > --- > tools/perf/util/PERF-VERSION-GEN | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/perf/util/PERF-VERSION-GEN b/tools/perf/util/PERF-VERSION-GEN > index 15a77b7..b23d11b 100755 > --- a/tools/perf/util/PERF-VERSION-GEN > +++ b/tools/perf/util/PERF-VERSION-GEN > @@ -18,7 +18,7 @@ TAG= > if test -d ../../.git -o -f ../../.git > then > TAG=$(git describe --abbrev=0 --match "v[0-9].[0-9]*" 2>/dev/null ) > - CID=$(git log -1 --abbrev=4 --pretty=format:"%h" 2>/dev/null) && CID="-g$CID" > + CID=$(git rev-parse --short HEAD 2>/dev/null) && CID="-g$CID" This shaves 4 milliseconds off the build time as well. Acked-by: Ingo Molnar <mingo@...nel.org> Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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