lib-git-svn.sh: Avoid setting web server variables unnecessarily

If the SVN_HTTPD_PORT variable is not set, then we will not even
attempt to start a web server in the start_httpd function (despite
it's name), so there is no need to determine values for the
SVN_HTTPD_PATH and SVN_HTTPD_MODULE_PATH variables.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/lib-git-svn.sh

@@ -68,28 +68,31 @@ svn_cmd () {
 	svn "$orig_svncmd" --config-dir "$svnconf" "$@"
 }
 
-for d in \
+if test -n "$SVN_HTTPD_PORT"
-	"$SVN_HTTPD_PATH" \
+then
-	/usr/sbin/apache2 \
+	for d in \
-	/usr/sbin/httpd \
+		"$SVN_HTTPD_PATH" \
-; do
+		/usr/sbin/apache2 \
-	if test -f "$d"
+		/usr/sbin/httpd \
-	then
+	; do
-		SVN_HTTPD_PATH="$d"
+		if test -f "$d"
-		break
+		then
-	fi
+			SVN_HTTPD_PATH="$d"
-done
+			break
-for d in \
+		fi
-	"$SVN_HTTPD_MODULE_PATH" \
+	done
-	/usr/lib/apache2/modules \
+	for d in \
-	/usr/libexec/apache2 \
+		"$SVN_HTTPD_MODULE_PATH" \
-; do
+		/usr/lib/apache2/modules \
-	if test -d "$d"
+		/usr/libexec/apache2 \
-	then
+	; do
-		SVN_HTTPD_MODULE_PATH="$d"
+		if test -d "$d"
-		break
+		then
-	fi
+			SVN_HTTPD_MODULE_PATH="$d"
-done
+			break
+		fi
+	done
+fi
 
 start_httpd () {
 	repo_base_path="$1"