From dcb2f7b07ece90ff3128e3006cd154c0ddfef74e Mon Sep 17 00:00:00 2001
From: Runxi Yu <me@runxiyu.org>
Date: Sun, 21 Sep 2025 03:18:50 +0800
Subject: [PATCH] Git show object for tags

---
 cmd/show-object/main.ha | 45 +++++++++++++++++++++++++++++++++++++++------

diff --git a/cmd/show-object/main.ha b/cmd/show-object/main.ha
index 0c691699e1a435dda3d49fb3f23738df8cc89c74..e7839ab96e7683d201d0ef4bdc4f05d05b32a584 100644
--- a/cmd/show-object/main.ha
+++ b/cmd/show-object/main.ha
@@ -53,6 +53,41 @@ 	const msg = strings::fromutf8_unsafe(c.message);
 	fmt::println(msg)!;
 };
 
+fn print_tag(t: git::tag) void = {
+	const tgt = git::oid_string(t.target)!;
+	defer free(tgt);
+
+	let ty: str = "";
+	switch (t.target_type) {
+	case git::objtype::OBJ_COMMIT =>
+		ty = "commit";
+	case git::objtype::OBJ_TREE =>
+		ty = "tree";
+	case git::objtype::OBJ_BLOB =>
+		ty = "blob";
+	case git::objtype::OBJ_TAG =>
+		ty = "tag";
+	};
+
+	const name = strings::fromutf8_unsafe(t.name);
+
+	fmt::printfln("object {}", tgt)!;
+	fmt::printfln("type {}", ty)!;
+	fmt::printfln("tag {}", name)!;
+
+	match (t.tagger) {
+	case let id: git::ident =>
+		print_ident("tagger", id);
+	case void =>
+		void;
+	};
+
+	fmt::println("")!;
+
+	const msg = strings::fromutf8_unsafe(t.message);
+	fmt::println(msg)!;
+};
+
 export fn main() void = {
 	let repo_path: (str | void) = void;
 
@@ -73,12 +108,7 @@ 			abort();
 		};
 	};
 
-	if (len(cmd.args) != 1) {
-		usage(&cmd);
-		os::exit(2);
-	};
-
-	if (repo_path is void) {
+	if (len(cmd.args) != 1 || repo_path is void) {
 		usage(&cmd);
 		os::exit(2);
 	};
@@ -127,5 +157,8 @@ 		git::tree_finish(t);
 	case let c: git::commit =>
 		print_commit(c);
 		git::commit_finish(c);
+	case let g: git::tag =>
+		print_tag(g);
+		git::tag_finish(g);
 	};
 };

-- 
2.48.1