git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
init_revisions(opt, prefix);
+ if (read_cache() < 0)
+ die(_("index file corrupt"));
opt->abbrev = 0;
opt->diff = 1;
opt->disable_stdin = 1;
test_must_fail git diff-tree --check HEAD^ HEAD
'
+test_expect_success 'check with ignored trailing whitespace attr (diff-tree)' '
+ test_when_finished "git reset --hard HEAD^" &&
+
+ # create a whitespace error that should be ignored
+ echo "* -whitespace" >.gitattributes &&
+ git add .gitattributes &&
+ echo "foo(); " >x &&
+ git add x &&
+ git commit -m "add trailing space" &&
+
+ # with a worktree diff-tree ignores the whitespace error
+ git diff-tree --root --check HEAD &&
+
+ # without a worktree diff-tree still ignores the whitespace error
+ git -C .git diff-tree --root --check HEAD
+'
+
test_expect_success 'check trailing whitespace (trailing-space: off)' '
git config core.whitespace "-trailing-space" &&
echo "foo (); " >x &&