Add config param for CMAKE_BUILD_TYPE

- default to "Release"
- allow :cmake_build_type kwarg to the constructor
- override everything with CMAKE_BUILD_TYPE env var

lib/mini_portile2/mini_portile_cmake.rb

@@ -11,6 +11,7 @@ def configure_prefix
   def initialize(name, version, **kwargs)
     super(name, version, **kwargs)
     @cmake_command = kwargs[:cmake_command]
+    @cmake_build_type = kwargs[:cmake_build_type]
   end
 
   def configure_defaults
@@ -49,6 +50,10 @@ def cmake_cmd
     (ENV["CMAKE"] || @cmake_command || "cmake").dup
   end
 
+  def cmake_build_type
+    (ENV["CMAKE_BUILD_TYPE"] || @cmake_build_type || "Release").dup
+  end
+
   private
 
   def generator_defaults
@@ -70,7 +75,7 @@ def cmake_compile_flags
       "-DCMAKE_SYSTEM_PROCESSOR=#{cpu_type}",
       "-DCMAKE_C_COMPILER=#{c_compiler}",
       "-DCMAKE_CXX_COMPILER=#{cxx_compiler}",
-      "-DCMAKE_BUILD_TYPE=Release"
+      "-DCMAKE_BUILD_TYPE=#{cmake_build_type}",
     ]
   end
 

test/test_cmake.rb

@@ -196,6 +196,17 @@ def test_cmake_command_configuration
     end
   end
 
+  def test_cmake_build_type_configuration
+    without_env("CMAKE_BUILD_TYPE") do
+      assert_equal("Release", MiniPortileCMake.new("test", "1.0.0").cmake_build_type)
+      assert_equal("xyzzy", MiniPortileCMake.new("test", "1.0.0", cmake_build_type: "xyzzy").cmake_build_type)
+    end
+    with_env("CMAKE_BUILD_TYPE"=>"Debug") do
+      assert_equal("Debug", MiniPortileCMake.new("test", "1.0.0").cmake_build_type)
+      assert_equal("Debug", MiniPortileCMake.new("test", "1.0.0", cmake_build_type: "xyzzy").cmake_build_type)
+    end
+  end
+
   private
 
   def with_stubbed_target(os: 'linux', cpu: 'x86_64')