1 files changed, 142 insertions, 0 deletions
diff --git a/third_party/git/t/t4208-log-magic-pathspec.sh b/third_party/git/t/t4208-log-magic-pathspec.sh
new file mode 100755
index 000000000000..4c8f3b8e1bdd
--- /dev/null
+++ b/third_party/git/t/t4208-log-magic-pathspec.sh
@@ -0,0 +1,142 @@
+#!/bin/sh
+
+test_description='magic pathspec tests using git-log'
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+	test_commit initial &&
+	test_tick &&
+	git commit --allow-empty -m empty &&
+	mkdir sub
+'
+
+test_expect_success '"git log :/" should not be ambiguous' '
+	git log :/
+'
+
+test_expect_success '"git log :/a" should be ambiguous (applied both rev and worktree)' '
+	: >a &&
+	test_must_fail git log :/a 2>error &&
+	test_i18ngrep ambiguous error
+'
+
+test_expect_success '"git log :/a -- " should not be ambiguous' '
+	git log :/a --
+'
+
+test_expect_success '"git log :/detached -- " should find a commit only in HEAD' '
+	test_when_finished "git checkout master" &&
+	git checkout --detach &&
+	# Must manually call `test_tick` instead of using `test_commit`,
+	# because the latter additionally creates a tag, which would make
+	# the commit reachable not only via HEAD.
+	test_tick &&
+	git commit --allow-empty -m detached &&
+	test_tick &&
+	git commit --allow-empty -m something-else &&
+	git log :/detached --
+'
+
+test_expect_success '"git log :/detached -- " should not find an orphaned commit' '
+	test_must_fail git log :/detached --
+'
+
+test_expect_success '"git log :/detached -- " should find HEAD only of own worktree' '
+	git worktree add other-tree HEAD &&
+	git -C other-tree checkout --detach &&
+	test_tick &&
+	git -C other-tree commit --allow-empty -m other-detached &&
+	git -C other-tree log :/other-detached -- &&
+	test_must_fail git log :/other-detached --
+'
+
+test_expect_success '"git log -- :/a" should not be ambiguous' '
+	git log -- :/a
+'
+
+# This differs from the ":/a" check above in that :/in looks like a pathspec,
+# but doesn't match an actual file.
+test_expect_success '"git log :/in" should not be ambiguous' '
+	git log :/in
+'
+
+test_expect_success '"git log :" should be ambiguous' '
+	test_must_fail git log : 2>error &&
+	test_i18ngrep ambiguous error
+'
+
+test_expect_success 'git log -- :' '
+	git log -- :
+'
+
+test_expect_success 'git log HEAD -- :/' '
+	initial=$(git rev-parse --short HEAD^) &&
+	cat >expected <<-EOF &&
+	$initial initial
+	EOF
+	(cd sub && git log --oneline HEAD -- :/ >../actual) &&
+	test_cmp expected actual
+'
+
+test_expect_success '"git log :^sub" is not ambiguous' '
+	git log :^sub
+'
+
+test_expect_success '"git log :^does-not-exist" does not match anything' '
+	test_must_fail git log :^does-not-exist
+'
+
+test_expect_success  '"git log :!" behaves the same as :^' '
+	git log :!sub &&
+	test_must_fail git log :!does-not-exist
+'
+
+test_expect_success '"git log :(exclude)sub" is not ambiguous' '
+	git log ":(exclude)sub"
+'
+
+test_expect_success '"git log :(exclude)sub --" must resolve as an object' '
+	test_must_fail git log ":(exclude)sub" --
+'
+
+test_expect_success '"git log :(unknown-magic) complains of bogus magic' '
+	test_must_fail git log ":(unknown-magic)" 2>error &&
+	test_i18ngrep pathspec.magic error
+'
+
+test_expect_success 'command line pathspec parsing for "git log"' '
+	git reset --hard &&
+	>a &&
+	git add a &&
+	git commit -m "add an empty a" --allow-empty &&
+	echo 1 >a &&
+	git commit -a -m "update a to 1" &&
+	git checkout HEAD^ &&
+	echo 2 >a &&
+	git commit -a -m "update a to 2" &&
+	test_must_fail git merge master &&
+	git add a &&
+	git log --merge -- a
+'
+
+test_expect_success 'tree_entry_interesting does not match past submodule boundaries' '
+	test_when_finished "rm -rf repo submodule" &&
+	git init submodule &&
+	test_commit -C submodule initial &&
+	git init repo &&
+	>"repo/[bracket]" &&
+	git -C repo add "[bracket]" &&
+	test_tick &&
+	git -C repo commit -m bracket &&
+	git -C repo rev-list HEAD -- "[bracket]" >expect &&
+
+	git -C repo submodule add ../submodule &&
+	test_tick &&
+	git -C repo commit -m submodule &&
+
+	git -C repo rev-list HEAD -- "[bracket]" >actual &&
+	test_cmp expect actual
+'
+
+test_done