docs/diff-options: clarify scope of diff-filter types

diff --git a/t/t9400-git-cvsserver-server.sh b/t/t9400-git-cvsserver-server.sh
index 432c61d246c938192a2b31f2db35f4f9b320a788..c30660d60626c886dfa5993acddaebf2d3364de9 100755 (executable)
--- a/t/t9400-git-cvsserver-server.sh
+++ b/t/t9400-git-cvsserver-server.sh
@@ -588,4 +588,52 @@ test_expect_success 'cvs annotate' '
     test_cmp ../expect ../actual
 '
 
+#------------
+# running via git-shell
+#------------
+
+cd "$WORKDIR"
+
+test_expect_success 'create remote-cvs helper' '
+       write_script remote-cvs <<-\EOF
+       exec git shell -c "cvs server"
+       EOF
+'
+
+test_expect_success 'cvs server does not run with vanilla git-shell' '
+       (
+               cd cvswork &&
+               CVS_SERVER=$WORKDIR/remote-cvs &&
+               export CVS_SERVER &&
+               test_must_fail cvs log merge
+       )
+'
+
+test_expect_success 'configure git shell to run cvs server' '
+       mkdir "$HOME"/git-shell-commands &&
+
+       write_script "$HOME"/git-shell-commands/cvs <<-\EOF &&
+       if ! test $# = 1 && test "$1" = "server"
+       then
+               echo >&2 "git-cvsserver only handles \"server\""
+               exit 1
+       fi
+       exec git cvsserver server
+       EOF
+
+       # Should not be used, but part of the recommended setup
+       write_script "$HOME"/git-shell-commands/no-interactive-login <<-\EOF
+       echo Interactive login forbidden
+       EOF
+'
+
+test_expect_success 'cvs server can run with recommended config' '
+       (
+               cd cvswork &&
+               CVS_SERVER=$WORKDIR/remote-cvs &&
+               export CVS_SERVER &&
+               cvs log merge
+       )
+'
+
 test_done