Add CMake Function for Setting Up Latest Go

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.19)
+cmake_minimum_required(VERSION 3.29)
 
 project(
   SetupGo
@@ -31,7 +31,7 @@ if(NOT SUBPROJECT)
 
   install(
     FILES
-      cmake/MkdirRecursive.cmake
+      cmake/SetupGo.cmake
       cmake/SetupGoConfig.cmake
       ${CMAKE_CURRENT_BINARY_DIR}/SetupGoConfigVersion.cmake
     DESTINATION lib/cmake/SetupGo

cmake/SetupGo.cmake

@@ -0,0 +1,28 @@
+# This code is licensed under the terms of the MIT License.
+# Copyright (c) 2024 Alfi Maulana
+
+include_guard(GLOBAL)
+
+# Sets up the latest version of Go within this project.
+#
+# This function downloads the latest version of the Go build from the remote server, extracts it,
+# and makes it available in the project.
+#
+# This function sets the `GO_EXECUTABLE` variable to the location of the Go executable.
+function(setup_go)
+  file(MAKE_DIRECTORY ${CMAKE_BUILD_DIR}/_deps)
+  file(
+    DOWNLOAD https://go.dev/dl/go1.22.2.linux-amd64.tar.gz ${CMAKE_BUILD_DIR}/_deps/go.tar.gz
+    EXPECTED_MD5 f64eb5791a9dab9cbcdf6549b9583280
+  )
+
+  execute_process(
+    COMMAND tar -xf ${CMAKE_BUILD_DIR}/_deps/go.tar.gz -C ${CMAKE_BUILD_DIR}/_deps
+    RESULT_VARIABLE RES
+  )
+  if(NOT RES EQUAL 0)
+    message(FATAL_ERROR "Failed to extract '${CMAKE_BUILD_DIR}/_deps/go.tar.gz' to '${CMAKE_BUILD_DIR}/_deps' (${RES})")
+  endif()
+
+  set(GO_EXECUTABLE ${CMAKE_BUILD_DIR}/_deps/go/bin/go PARENT_SCOPE)
+endfunction()

test/CMakeLists.txt

@@ -4,14 +4,14 @@ function(add_cmake_test FILE)
       NAME ${NAME}
       COMMAND ${CMAKE_COMMAND}
         -D CMAKE_MODULE_PATH=${CMAKE_MODULE_PATH}
+        -D CMAKE_BUILD_DIR=${CMAKE_CURRENT_SOURCE_DIR}/build
         -D TEST_MATCHES=^${NAME}$
         -P ${CMAKE_CURRENT_SOURCE_DIR}/${FILE}
     )
   endforeach()
 endfunction()
 
 add_cmake_test(
-  cmake/MkdirRecursiveTest.cmake
-  "Create directory recursively"
-  # Add more test cases here.
+  cmake/SetupGoTest.cmake
+  "Set up the latest version of Go"
 )

test/cmake/SetupGoTest.cmake

@@ -0,0 +1,38 @@
+# Matches everything if not defined
+if(NOT TEST_MATCHES)
+  set(TEST_MATCHES ".*")
+endif()
+
+set(TEST_COUNT 0)
+
+include(SetupGo)
+
+if("Set up the latest version of Go" MATCHES ${TEST_MATCHES})
+  math(EXPR TEST_COUNT "${TEST_COUNT} + 1")
+
+  setup_go()
+
+  if(NOT DEFINED GO_EXECUTABLE)
+    message(FATAL_ERROR "The GO_EXECUTABLE variable should be defined")
+  endif()
+
+  if(NOT EXISTS ${GO_EXECUTABLE})
+    message(FATAL_ERROR "The Go executable at '${GO_EXECUTABLE}' should exist")
+  endif()
+
+  if(NOT IS_EXECUTABLE ${GO_EXECUTABLE})
+    message(FATAL_ERROR "The Go executable at '${GO_EXECUTABLE}' should be executable")
+  endif()
+
+  execute_process(
+    COMMAND ${GO_EXECUTABLE} version
+    RESULT_VARIABLE RES
+  )
+  if(NOT RES EQUAL 0)
+    message(FATAL_ERROR "It should not fail to execute the Go executable")
+  endif()
+endif()
+
+if(TEST_COUNT LESS_EQUAL 0)
+  message(FATAL_ERROR "Nothing to test with: ${TEST_MATCHES}")
+endif()