git-svn: factor out svnserve test code for later use

Signed-off-by: Alec Berryman <alec@thened.net>
Acked-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/lib-git-svn.sh

@@ -135,3 +135,20 @@ close $wr or die $!;
 close $rd or die $!;
 EOF
 }
+
+require_svnserve () {
+    if test -z "$SVNSERVE_PORT"
+    then
+        say 'skipping svnserve test. (set $SVNSERVE_PORT to enable)'
+        test_done
+        exit
+    fi
+}
+
+start_svnserve () {
+    svnserve --listen-port $SVNSERVE_PORT \
+             --root "$rawsvnrepo" \
+             --listen-once \
+             --listen-host 127.0.0.1 &
+}
+