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mesa: don't touch git_sha1.h if sha1 didn't change

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Reviewed-by: Dan Nicholson <dbn.lists@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Marcin Slusarz 2011-05-05 22:37:21 +02:00 • committed by Ian Romanick
parent f60235e73a
commit 02a6c9428d
2 changed files with 9 additions and 2 deletions
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10
bin/extract_git_sha1
View file

@ -1,10 +1,16 @@
#!/bin/sh
touch src/mesa/main/git_sha1.h
if [ ! -f src/mesa/main/git_sha1.h ]; then
touch src/mesa/main/git_sha1.h
fi
if which git > /dev/null; then
# Extract the 7-digit "short" SHA1 for the current HEAD, convert
# it to a string, and wrap it in a #define. This is used in
# src/mesa/main/version.c to put the GIT SHA1 in the GL_VERSION string.
git log -n 1 --oneline |\
sed 's/^\([^ ]*\) .*/#define MESA_GIT_SHA1 "git-\1"/' \
> src/mesa/main/git_sha1.h
> src/mesa/main/git_sha1.h.tmp
if ! cmp -s src/mesa/main/git_sha1.h.tmp src/mesa/main/git_sha1.h; then
mv src/mesa/main/git_sha1.h.tmp src/mesa/main/git_sha1.h
fi
fi

1
src/mesa/main/.gitignore vendored
View file

@ -3,3 +3,4 @@ api_exec_es2.c
get_es1.c
get_es2.c
git_sha1.h
git_sha1.h.tmp