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#!/bin/sh
if [ "$#" -ne 1 ]
then
echo "usage: git-version-gen <verfile>" >&2
exit 1
fi
VERFILE="$1"
if [ -d '.git' ]
then
git update-index --refresh > /dev/null 2>&1
VERSION=`git describe --abbrev=4 --match='v[0-9]*' --dirty 2>/dev/null`
VERSION=`echo "$VERSION" | sed 's/^v//'`
[ -n "$VERSION" ] && printf "%s" "$VERSION" > "$VERFILE"
fi
if [ -f "$VERFILE" ]
then
cat "$VERFILE"
else
echo "git-version-gen: unknown version number." >&2
exit 1
fi
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