builtin-tag.c: remove cruft

diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
index e88fe5ae7cd6c4b9e423a95ec125e4697467f0f1..1ad324e23696f66451a9ffc05d77f459bf106e83 100755 (executable)
--- a/GIT-VERSION-GEN
+++ b/GIT-VERSION-GEN
@@ -1,29 +1,31 @@
 #!/bin/sh
 
 GVF=GIT-VERSION-FILE
-DEF_VER=v1.3-rc4.GIT
+DEF_VER=v1.5.4.GIT
 
-# First try git-describe, then see if there is a version file
-# (included in release tarballs), then default
-if VN=$(git-describe --abbrev=4 HEAD 2>/dev/null); then
-       VN=$(echo "$VN" | sed -e 's/-/./g');
-elif test -f version
+LF='
+'
+
+# First see if there is a version file (included in release tarballs),
+# then try git-describe, then default.
+if test -f version
 then
        VN=$(cat version) || VN="$DEF_VER"
+elif test -d .git &&
+       VN=$(git describe --abbrev=4 HEAD 2>/dev/null) &&
+       case "$VN" in
+       *$LF*) (exit 1) ;;
+       v[0-9]*)
+               git diff-index --quiet HEAD || VN="$VN-dirty" ;;
+       esac
+then
+       VN=$(echo "$VN" | sed -e 's/-/./g');
 else
        VN="$DEF_VER"
 fi
 
 VN=$(expr "$VN" : v*'\(.*\)')
 
-dirty=$(sh -c 'git-diff-index --name-only HEAD' 2>/dev/null) || dirty=
-case "$dirty" in
-'')
-       ;;
-*)
-       VN="$VN-dirty" ;;
-esac
-
 if test -r $GVF
 then
        VC=$(sed -e 's/^GIT_VERSION = //' <$GVF)