buliding of release.h moved into an external script. Avoided recompialtion of redis.c if git sha1 is the same as the previous one

1 files changed, 9 insertions, 0 deletions

diff --git a/mkreleasehdr.sh b/mkreleasehdr.sh
new file mode 100755
index 000000000..972904373
--- /dev/null
+++ b/mkreleasehdr.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+GIT_SHA1=$((git show-ref --head --hash=8 2> /dev/null || echo 00000000) | head -n1)
+GIT_DIRTY=$(git status -s 2> /dev/null | wc -l)
+test -f release.h || touch release.h
+(cat release.h | grep SHA1 | grep $GIT_SHA1) && \
+(cat release.h | grep DIRTY | grep $GIT_DIRTY) && exit 0 # Already uptodate
+echo "#define REDIS_GIT_SHA1 \"$GIT_SHA1\"" > release.h
+echo "#define REDIS_GIT_DIRTY $GIT_DIRTY" >> release.h
+touch redis.c # force recompile of redis.c