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#!/bin/sh
if [ $# -eq 1 ] ; then
OUTPUT=$1
fi
GVF=${OUTPUT}PERF-VERSION-FILE
DEF_VER=v0.0.2.PERF
LF='
'
# First see if there is a version file (included in release tarballs),
# then try git-describe, then default.
if test -f version
then
VN=$(cat version) || VN="$DEF_VER"
elif test -d .git -o -f .git &&
VN=$(git describe --abbrev=4 HEAD 2>/dev/null) &&
case "$VN" in
*$LF*) (exit 1) ;;
v[0-9]*)
git update-index -q --refresh
test -z "$(git diff-index --name-only HEAD --)" ||
VN="$VN-dirty" ;;
esac
then
VN=$(echo "$VN" | sed -e 's/-/./g');
else
VN="$DEF_VER"
fi
VN=$(expr "$VN" : v*'\(.*\)')
if test -r $GVF
then
VC=$(sed -e 's/^PERF_VERSION = //' <$GVF)
else
VC=unset
fi
test "$VN" = "$VC" || {
echo >&2 "PERF_VERSION = $VN"
echo "PERF_VERSION = $VN" >$GVF
}
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