builtin/apply: make find_header() return -128 instead of die()ing

diff --git a/t/t7800-difftool.sh b/t/t7800-difftool.sh
index 4e713f7aa54d4713cfd74978460ec9aa144fc773..42a2929835b5c77e5b3031ce56ad1243afb56971 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
@@ -419,11 +419,34 @@ run_dir_diff_test 'difftool --dir-diff when worktree file is missing' '
        grep file2 output
 '
 
+run_dir_diff_test 'difftool --dir-diff with unmerged files' '
+       test_when_finished git reset --hard &&
+       test_config difftool.echo.cmd "echo ok" &&
+       git checkout -B conflict-a &&
+       git checkout -B conflict-b &&
+       git checkout conflict-a &&
+       echo a >>file &&
+       git add file &&
+       git commit -m conflict-a &&
+       git checkout conflict-b &&
+       echo b >>file &&
+       git add file &&
+       git commit -m conflict-b &&
+       git checkout master &&
+       git merge conflict-a &&
+       test_must_fail git merge conflict-b &&
+       cat >expect <<-EOF &&
+               ok
+       EOF
+       git difftool --dir-diff $symlinks -t echo >actual &&
+       test_cmp expect actual
+'
+
 write_script .git/CHECK_SYMLINKS <<\EOF
 for f in file file2 sub/sub
 do
        echo "$f"
-       readlink "$2/$f"
+       ls -ld "$2/$f" | sed -e 's/.* -> //'
 done >actual
 EOF