[swift-inspect] use FetchContent to fetch ArgumentParser in CMake build

Author: andrurogerz

tools/swift-inspect/CMakeLists.txt

@@ -3,6 +3,8 @@ cmake_minimum_required(VERSION 3.28)
 project(swift-inspect
   LANGUAGES C CXX Swift)
 
+include(FetchContent)
+
 # Set C++ standard
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
@@ -12,7 +14,15 @@ set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 
-find_package(ArgumentParser CONFIG REQUIRED)
+FetchContent_Declare(ArgumentParser
+  GIT_REPOSITORY  https://github.com/apple/swift-argument-parser
+  GIT_TAG         1.5.0
+  GIT_SHALLOW     TRUE
+  EXCLUDE_FROM_ALL
+  FIND_PACKAGE_ARGS CONFIG)
+set(BUILD_TESTING OFF CACHE INTERNAL "skip building tests")
+set(BUILD_EXAMPLES OFF CACHE INTERNAL "skip building examples")
+FetchContent_MakeAvailable(ArgumentParser)
 
 add_library(SymbolicationShims INTERFACE)
 target_include_directories(SymbolicationShims INTERFACE