completion: support excluding refs

diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh
index 6a7207b9506d76beed912698be63afffcd503991..2974900578d3f21b57d5773973344a1743e8e6e0 100755 (executable)
--- a/t/t7800-difftool.sh
+++ b/t/t7800-difftool.sh
@@ -20,7 +20,7 @@ difftool_test_setup ()
 prompt_given ()
 {
        prompt="$1"
-       test "$prompt" = "Launch 'test-tool' [Y/n]: branch"
+       test "$prompt" = "Launch 'test-tool' [Y/n]? branch"
 }
 
 # Create a file on master and change it on branch
@@ -412,6 +412,20 @@ run_dir_diff_test 'difftool --dir-diff from subdirectory' '
        )
 '
 
+run_dir_diff_test 'difftool --dir-diff from subdirectory with GIT_DIR set' '
+       (
+               GIT_DIR=$(pwd)/.git &&
+               export GIT_DIR &&
+               GIT_WORK_TREE=$(pwd) &&
+               export GIT_WORK_TREE &&
+               cd sub &&
+               git difftool --dir-diff $symlinks --extcmd ls \
+                       branch -- sub >output &&
+               grep sub output &&
+               ! grep file output
+       )
+'
+
 run_dir_diff_test 'difftool --dir-diff when worktree file is missing' '
        test_when_finished git reset --hard &&
        rm file2 &&
@@ -446,7 +460,7 @@ write_script .git/CHECK_SYMLINKS <<\EOF
 for f in file file2 sub/sub
 do
        echo "$f"
-       readlink "$2/$f"
+       ls -ld "$2/$f" | sed -e 's/.* -> //'
 done >actual
 EOF