Add how to install guide

CMakeLists.txt

@@ -12,8 +12,8 @@ option(RSP_ENABLE_ANSI "Enable ANSI output" false)
 # -------------------------------------------------------------------------------------------------------------- #
 
 # Append this package's cmake scripts in module path
-list(FIND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake" hasModulePath)
-if(${hasModulePath} STREQUAL "-1")
+list(FIND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake" has_cmake_scripts_module_path)
+if(has_cmake_scripts_module_path EQUAL -1)
     list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 endif()
 
@@ -48,12 +48,14 @@ project(rsp-cmake-scripts
     HOMEPAGE_URL "https://github.com/rsps/cmake-scripts"
     LANGUAGES NONE
 )
+set("${PROJECT_NAME}_VERSION" "${PROJECT_VERSION}")
+set("${PROJECT_NAME}_SEMVER" "${version_SEMVER}")
 
 # Ensure parent project has modules and other properties available.
-if(NOT CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
+if(NOT PROJECT_IS_TOP_LEVEL)
     set(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH}" PARENT_SCOPE)
-    set("${PROJECT_NAME}_VERSION" "${PROJECT_VERSION}" PARENT_SCOPE)
-    set("${PROJECT_NAME}_SEMVER" "${version_SEMVER}" PARENT_SCOPE)
+    set("${PROJECT_NAME}_VERSION" "${${PROJECT_NAME}_VERSION}" PARENT_SCOPE)
+    set("${PROJECT_NAME}_SEMVER" "${${PROJECT_NAME}_SEMVER}" PARENT_SCOPE)
 endif()
 
 # -------------------------------------------------------------------------------------------------------------- #
@@ -62,7 +64,7 @@ endif()
 
 include("dependencies.cmake")
 
-if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
+if(PROJECT_IS_TOP_LEVEL)
     include("dev-dependencies.cmake")
 endif()
 
@@ -82,7 +84,7 @@ endif ()
 # Post-dependencies project setup
 # -------------------------------------------------------------------------------------------------------------- #
 
-if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
+if(PROJECT_IS_TOP_LEVEL)
     include("rsp/debug")
     include("rsp/logging")
 endif()

dependencies.cmake

@@ -5,13 +5,13 @@
 include_guard()
 
 function(install_dependencies)
-    message(STATUS "Installing Dependencies for ${PROJECT_NAME}")
+    message(VERBOSE "Installing Dependencies for ${PROJECT_NAME}")
 
     # Avoid building tests for dependencies...
     set(BUILD_TESTING off)
 
     # Add dependencies here...
-    message(STATUS "    N/A")
+    message(VERBOSE "    N/A")
 
 endfunction()
 safeguard_properties(CALLBACK "install_dependencies" PROPERTIES BUILD_TESTING)

dev-dependencies.cmake

@@ -8,13 +8,13 @@ include_guard()
 include("dependencies.cmake")
 
 function(install_dev_dependencies)
-    message(STATUS "Installing Development Dependencies for ${PROJECT_NAME}")
+    message(VERBOSE "Installing Development Dependencies for ${PROJECT_NAME}")
 
     # Avoid building tests for dependencies...
     set(BUILD_TESTING off)
 
     # Add dev-dependencies here...
-    message(STATUS "    N/A")
+    message(VERBOSE "    N/A")
 
 endfunction()
 safeguard_properties(CALLBACK "install_dev_dependencies" PROPERTIES BUILD_TESTING)

docs/+current/index.md

@@ -17,4 +17,44 @@ author: RSP Systems A/S
 
 ## How to install
 
-_TODO: ...incomplete, please review documentation at a later point_
+### Via CPM
+
+If you are using [CPM](https://github.com/cpm-cmake/CPM.cmake), then you can install "CMake Scripts" using the following:
+
+```cmake
+set(RSP_CMAKE_SCRIPTS_VERSION "0.1.0")
+
+CPMAddPackage(
+    NAME "rsp-cmake-scripts"
+    VERSION "${RSP_CMAKE_SCRIPTS_VERSION}"
+    GITHUB_REPOSITORY "rsps/cmake-scripts"
+)
+
+# IMPORTANT: Enable "rsp/*" modules in your project,...
+list(APPEND CMAKE_MODULE_PATH "${rsp-cmake-scripts_SOURCE_DIR}/cmake")
+```
+
+!!! info "`CMAKE_MODULE_PATH`"
+    At the time of this writing, CPM does not automatically support paths appended to `CMAKE_MODULE_PATH`.
+    To make use of this package's cmake modules, via CPM, you **MUST** manually append
+    this package's module path in your top-level `CMakeLists.txt`, as shown in the above install example.
+
+### Via Fetch Content
+
+Alternatively, you can also use cmake's [`FetchContent`](https://cmake.org/cmake/help/latest/module/FetchContent.html) module:
+
+```cmake
+set(RSP_CMAKE_SCRIPTS_VERSION "0.1.0")
+
+include(FetchContent)
+FetchContent_Declare(
+    "rsp-cmake-scripts"
+    GIT_REPOSITORY "https://github.com/rsps/cmake-scripts"
+    GIT_TAG "${RSP_CMAKE_SCRIPTS_VERSION}"
+)
+FetchContent_MakeAvailable("rsp-cmake-scripts")
+```
+
+!!! note "Note"
+    "CMake Scripts" depends on [CPM](https://github.com/cpm-cmake/CPM.cmake) for its dependencies. It will
+    automatically be included, even when you install this project using cmake's `FetchContent` module.