[PATCH v4 1/2] version-gen: cleanup

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No functional changes.

Signed-off-by: Felipe Contreras <felipe.contreras@xxxxxxxxx>
---
 GIT-VERSION-GEN | 36 ++++++++++++++++++++----------------
 1 file changed, 20 insertions(+), 16 deletions(-)

diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
index 06026ea..e96538d 100755
--- a/GIT-VERSION-GEN
+++ b/GIT-VERSION-GEN
@@ -6,22 +6,29 @@ DEF_VER=v1.8.4
 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 ${GIT_DIR:-.git} -o -f .git &&
-	VN=$(git describe --match "v[0-9]*" --abbrev=7 HEAD 2>/dev/null) &&
+describe () {
+	VN=$(git describe --match "v[0-9]*" --abbrev=7 HEAD 2>/dev/null) || return 1
 	case "$VN" in
-	*$LF*) (exit 1) ;;
+	*$LF*)
+		return 1
+		;;
 	v[0-9]*)
 		git update-index -q --refresh
 		test -z "$(git diff-index --name-only HEAD --)" ||
-		VN="$VN-dirty" ;;
+		VN="$VN-dirty"
+		return 0
+		;;
 	esac
+}
+
+# First see if there is a version file (included in release tarballs),
+# then try 'git describe', then default.
+if test -f version
+then
+	VN=$(cat version) || VN="$DEF_VER"
+elif test -d ${GIT_DIR:-.git} -o -f .git && describe
 then
-	VN=$(echo "$VN" | sed -e 's/-/./g');
+	VN=$(echo "$VN" | sed -e 's/-/./g')
 else
 	VN="$DEF_VER"
 fi
@@ -34,9 +41,6 @@ then
 else
 	VC=unset
 fi
-test "$VN" = "$VC" || {
-	echo >&2 "GIT_VERSION = $VN"
-	echo "GIT_VERSION = $VN" >$GVF
-}
-
-
+test "$VN" = "$VC" && exit
+echo >&2 "GIT_VERSION = $VN"
+echo "GIT_VERSION = $VN" >$GVF
-- 
1.8.4-fc

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