add -s flag to print current default browser silently

CLAUDE.md

@@ -0,0 +1,34 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## What this is
+
+`defaultbrowser` is a macOS command-line tool (Objective-C) that reads and sets the default HTTP/HTTPS handler using the macOS Launch Services API. The entire implementation lives in `src/main.m`.
+
+## Build commands
+
+```sh
+make          # build the binary
+make install  # install to /usr/local/bin (override with PREFIX=...)
+make clean    # remove the binary
+```
+
+The binary is compiled directly with `gcc` (or `clang` via the `CC` variable) against the `Foundation` and `ApplicationServices` frameworks. There is no Xcode project.
+
+## Architecture
+
+All logic is in `src/main.m`:
+
+- `get_http_handlers()` — calls `LSCopyAllHandlersForURLScheme("http")` and returns a dict mapping short name → bundle ID (e.g. `"chrome"` → `"com.google.chrome"`).
+- `get_current_http_handler()` — calls `LSCopyDefaultHandlerForURLScheme("http")` and returns the short name.
+- `set_default_handler()` — calls `LSSetDefaultHandlerForURLScheme` for both `http` and `https`.
+- `main()` — with no args, lists all handlers (marking the current one with `*`); with one arg, sets that browser as default.
+
+Bundle ID → short name conversion strips everything before the last `.` and lowercases it (`app_name_from_bundle_id`). Browser name matching uses `caseInsensitiveCompare`.
+
+## macOS-specific notes
+
+- Requires macOS. Launch Services functions (`LS*`) are in `ApplicationServices.framework`.
+- `LSCopyAllHandlersForURLScheme` is deprecated on macOS 12+ but still functional. Future macOS versions may break it.
+- Setting the default browser may trigger a system confirmation dialog on newer macOS versions.

src/main.m

@@ -58,6 +58,8 @@ int main(int argc, const char *argv[]) {
                 char *mark = [key caseInsensitiveCompare:current_handler_name] == NSOrderedSame ? "* " : "  ";
                 printf("%s%s\n", mark, [key UTF8String]);
             }
+        } else if (strcmp(target, "-s") == 0) {
+            printf("%s\n", [current_handler_name UTF8String]);
         } else {
             NSString *target_handler_name = [NSString stringWithUTF8String:target];