env: add basic installing support

CMakeLists.txt

@@ -5,16 +5,21 @@ include(get_cpm)
 
 project(
 	mimicpp
-	LANGUAGES CXX
-	VERSION 2
+	LANGUAGES		CXX
+	VERSION			2
+	DESCRIPTION		"A modern and (mostly) macro free mocking-framework"
+	HOMEPAGE_URL	"https://github.com/DNKpp/mimicpp"
 )
 
+include(GNUInstallDirs)
+
 add_library(mimicpp INTERFACE)
 add_library(mimicpp::mimicpp ALIAS mimicpp)
 target_include_directories(
 	mimicpp
 	INTERFACE
-	"include"
+	"$<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>"
+	"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
 )
 
 target_compile_options(
@@ -70,3 +75,9 @@ if (MIMICPP_ENABLE_AMALGAMATE_HEADERS)
 	add_subdirectory("tools/amalgamate-headers")
 
 endif()
+
+if(NOT CMAKE_SKIP_INSTALL_RULES)
+
+  include(InstallRules)
+
+endif()

cmake/InstallRules.cmake

@@ -0,0 +1,47 @@
+# many thanks to jeremy rifkin, from which I took most of the following code
+# https://github.com/jeremy-rifkin/libassert/blob/main/cmake/InstallRules.cmake
+
+include(CMakePackageConfigHelpers)
+
+set(MIMICPP_LIB_INSTALL_DIR "${CMAKE_INSTALL_LIBDIR}/mimipp")
+set(MIMICPP_CMAKE_INSTALL_DIR "${MIMICPP_LIB_INSTALL_DIR}/cmake")
+set(MIMICPP_INCLUDE_INSTALL_DIR "${CMAKE_INSTALL_LIBDIR}/mimipp")
+
+write_basic_package_version_file(
+    "mimicpp-version.cmake"
+    VERSION         ${PROJECT_VERSION}
+    COMPATIBILITY   AnyNewerVersion
+    ARCH_INDEPENDENT
+)
+
+configure_package_config_file(
+    "${PROJECT_SOURCE_DIR}/cmake/mimicpp-config.cmake.in"
+    "mimicpp-config.cmake"
+    INSTALL_DESTINATION "${MIMICPP_CMAKE_INSTALL_DIR}"
+)
+
+install(
+	TARGETS						mimicpp
+	EXPORT						mimicpp-targets
+	PUBLIC_HEADER DESTINATION	"${MIMICPP_INCLUDE_INSTALL_DIR}"
+)
+
+install(
+    DIRECTORY				"include/"
+    TYPE					INCLUDE
+    FILES_MATCHING PATTERN	"*.hpp"
+)
+
+install(
+    EXPORT                  mimicpp-targets
+    FILE                    mimicpp-targets.cmake
+    DESTINATION             "${MIMICPP_CMAKE_INSTALL_DIR}"
+    NAMESPACE               mimipp::
+)
+
+install(
+    FILES
+        "${PROJECT_BINARY_DIR}/mimicpp-config.cmake"
+        "${PROJECT_BINARY_DIR}/mimicpp-version.cmake"
+    DESTINATION "${MIMICPP_CMAKE_INSTALL_DIR}"
+)

cmake/mimic++-configuration-options.cmake

@@ -52,11 +52,11 @@ OPTION(MIMICPP_CONFIG_EXPERIMENTAL_UNICODE_STR_MATCHER "When enabled, all case-i
 if (MIMICPP_CONFIG_EXPERIMENTAL_UNICODE_STR_MATCHER)
 
 	CPMAddPackage(
-		NAME cpp-unicodelib
-		GITHUB_REPOSITORY yhirose/cpp-unicodelib
-		GIT_TAG 797b1f0f1592ce13afabf3576f51ef26db5e884d
-		DOWNLOAD_ONLY YES
-		SYSTEM YES
+		NAME				cpp-unicodelib
+		GITHUB_REPOSITORY	yhirose/cpp-unicodelib
+		GIT_TAG				797b1f0f1592ce13afabf3576f51ef26db5e884d
+		DOWNLOAD_ONLY		YES
+		SYSTEM				YES
 	)
 
 	if (cpp-unicodelib_ADDED)

cmake/mimicpp-config.cmake.in

@@ -0,0 +1,5 @@
+@PACKAGE_INIT@
+
+set(mimicpp_VERSION "@PROJECT_VERSION@")
+include("${CMAKE_CURRENT_LIST_DIR}/mimicpp-targets.cmake")
+check_required_components("@PROJECT_NAME@")

test/adapter-tests/boost-test/CMakeLists.txt

@@ -13,10 +13,11 @@ else()
 endif()
 
 CPMAddPackage(
-	NAME Boost
-	URL	${BOOST_ARCHIVE_URL}
-	VERSION 1.85.0
-	SYSTEM YES
+	NAME				Boost
+	URL					${BOOST_ARCHIVE_URL}
+	VERSION				1.85.0
+	EXCLUDE_FROM_ALL	YES
+	SYSTEM				YES
 )
 
 target_link_libraries(

test/adapter-tests/gtest/CMakeLists.txt

@@ -10,6 +10,8 @@ CPMAddPackage(
 	NAME GTest
 	GITHUB_REPOSITORY	"google/googletest"
 	GIT_TAG				"v1.15.2"
+	EXCLUDE_FROM_ALL	YES
+	SYSTEM				YES
 	OPTIONS
 						"gtest_force_shared_crt ON"
 )