3 files changed, 35 insertions, 4 deletions
diff --git a/cabinet/magic.cpp b/cabinet/magic.cpp
index 96e212f..b5c1aaa 100644
--- a/cabinet/magic.cpp
+++ b/cabinet/magic.cpp
@@ -4,6 +4,8 @@
 
 #include <cerrno>
 #include <expected>
+#include <filesystem>
+#include <string>
 #include <string_view>
 #include <system_error>
 #include <utility>
@@ -51,6 +53,16 @@ namespace cab
     return *this;
   }
 
+  auto magic::process(std::filesystem::path path) -> std::expected<std::string, std::string>
+  {
+    auto result = ::magic_file(m_cookie, path.native().c_str());
+    if (!result)
+    {
+      return std::unexpected{std::string{::magic_error(m_cookie)}};
+    }
+    return result;
+  }
+
   auto swap(magic & lhs, magic & rhs) noexcept -> void
   {
     auto temp = std::move(lhs);
diff --git a/cabinet/magic.hpp b/cabinet/magic.hpp
index 25cf60b..222d488 100644
--- a/cabinet/magic.hpp
+++ b/cabinet/magic.hpp
@@ -4,6 +4,8 @@
 #include <magic.h>
 
 #include <expected>
+#include <filesystem>
+#include <string>
 #include <string_view>
 #include <system_error>
 #include <utility>
@@ -52,6 +54,8 @@ namespace cab
     auto operator=(magic const &) -> magic & = delete;
     auto operator=(magic && other) noexcept -> magic &;
 
+    auto process(std::filesystem::path path) -> std::expected<std::string, std::string>;
+
   private:
     explicit magic(::magic_t cookie) noexcept;
 
diff --git a/cabinet/main.cpp b/cabinet/main.cpp
index bec0a5c..77a73ca 100644
--- a/cabinet/main.cpp
+++ b/cabinet/main.cpp
@@ -1,18 +1,33 @@
 #include <cabinet/magic.hpp>
 
 #include <cstdlib>
+#include <filesystem>
 #include <iostream>
 #include <print>
 
-auto main() -> int
+using flags = cab::magic::flags;
+
+auto main(int argc, char ** argv) -> int
 {
-  auto magic = cab::magic::open(cab::magic::flags::print_debug |      //
-                                cab::magic::flags::follow_symlinks |  //
-                                cab::magic::flags::mime);
+  if (argc != 2)
+  {
+    std::println(std::cerr, "Expected a filename");
+    return EXIT_FAILURE;
+  }
 
+  auto magic = cab::magic::open(flags::follow_symlinks | flags::mime_type);
   if (!magic)
   {
     std::println(std::cerr, "Failed to initialize libmagic: {}", magic.error().message());
     return EXIT_FAILURE;
   }
+
+  auto mime_type = magic->process(std::filesystem::path{argv[1]});
+  if (!mime_type)
+  {
+    std::println(std::cerr, "Failed to determine file type: {}", mime_type.error());
+    return EXIT_FAILURE;
+  }
+
+  std::println("{}: {}", argv[1], mime_type.value());
 }