feat: find v1 package

cmake/FindTaglib.cmake

@@ -0,0 +1,90 @@
+# FindTaglib.cmake
+#
+# Cross-platform TagLib finder.
+# Supports:
+#   - Ubuntu/Debian (libtag1v5-dev)
+#   - macOS (Homebrew)
+#   - Windows (vcpkg/manual)
+#
+# Defines:
+#   Taglib_FOUND
+#   Taglib_INCLUDE_DIRS
+#   Taglib_LIBRARIES
+#   Taglib::Taglib (imported target)
+
+# --- First: if official Config file exists (v2.x), use it directly ---
+find_package(Taglib CONFIG QUIET)
+if(Taglib_FOUND)
+  message(STATUS "Using system-provided Taglib (with CMake config).")
+  return()
+endif()
+
+# --- Manual search fallback (for TagLib v1.x without config) ---
+message(STATUS "No Taglib CMake config found, falling back to manual search...")
+
+if(WIN32)
+  # --- Windows ---
+  find_path(Taglib_INCLUDE_DIR tag.h
+    PATH_SUFFIXES taglib
+    PATHS
+      "C:/Program Files/taglib/include"
+      "C:/Program Files (x86)/taglib/include"
+      "${CMAKE_SOURCE_DIR}/third_party/taglib/include"
+  )
+  find_library(Taglib_LIBRARY NAMES tag taglib
+    PATHS
+      "C:/Program Files/taglib/lib"
+      "C:/Program Files (x86)/taglib/lib"
+      "${CMAKE_SOURCE_DIR}/third_party/taglib/lib"
+  )
+
+elseif(APPLE)
+  # --- macOS ---
+  find_path(Taglib_INCLUDE_DIR tag.h
+    PATH_SUFFIXES taglib
+    PATHS
+      /usr/local/include
+      /opt/homebrew/include
+  )
+  find_library(Taglib_LIBRARY NAMES tag taglib
+    PATHS
+      /usr/local/lib
+      /opt/homebrew/lib
+  )
+
+else()
+  # --- Linux / Unix ---
+  find_path(Taglib_INCLUDE_DIR tag.h
+    PATH_SUFFIXES taglib
+    PATHS
+      /usr/include
+      /usr/local/include
+  )
+  find_library(Taglib_LIBRARY NAMES tag taglib
+    PATHS
+      /usr/lib /usr/lib64
+      /usr/local/lib /usr/local/lib64
+      /usr/lib/x86_64-linux-gnu
+  )
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Taglib DEFAULT_MSG
+  Taglib_LIBRARY Taglib_INCLUDE_DIR
+)
+
+if(Taglib_FOUND)
+  set(Taglib_INCLUDE_DIRS ${Taglib_INCLUDE_DIR})
+  set(Taglib_LIBRARIES ${Taglib_LIBRARY})
+
+  if(NOT TARGET Taglib::Taglib)
+    add_library(Taglib::Taglib UNKNOWN IMPORTED)
+    set_target_properties(Taglib::Taglib PROPERTIES
+      IMPORTED_LOCATION ${Taglib_LIBRARY}
+      INTERFACE_INCLUDE_DIRECTORIES ${Taglib_INCLUDE_DIR}
+    )
+  endif()
+else()
+  message(WARNING "Taglib not found. Please install libtag1v5-dev (Linux), \
+brew install taglib (macOS), or add manual path (Windows).")
+endif()