Added a download status (#171)

* bump the version of CPM to 0.38.1

* feature: added CPM download status

This is very useful in shaky network solutions. We want both a success
and a failure message, to determine if the download was successful.

* feature: compare CPM against a given checksum

This is more comprehensive than just comparing against an empty file.

* bump the version of Ccache.cmake to 1.2.4

* bump the version of StableCoder/cmake-scripts to 23.04

* update to use new get_cpm.cmake script

---------

Co-authored-by: Lars Melchior <lars.melchior@gmail.com>

Author: schtobia

cmake/CPM.cmake

@@ -1,4 +1,9 @@
-set(CPM_DOWNLOAD_VERSION 0.37.0)
+# SPDX-License-Identifier: MIT
+#
+# SPDX-FileCopyrightText: Copyright (c) 2019-2023 Lars Melchior and contributors
+
+set(CPM_DOWNLOAD_VERSION 0.38.5)
+set(CPM_HASH_SUM "192aa0ccdc57dfe75bd9e4b176bf7fb5692fd2b3e3f7b09c74856fc39572b31c")
 
 if(CPM_SOURCE_CACHE)
   set(CPM_DOWNLOAD_LOCATION "${CPM_SOURCE_CACHE}/cpm/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
@@ -11,22 +16,9 @@ endif()
 # Expand relative path. This is important if the provided path contains a tilde (~)
 get_filename_component(CPM_DOWNLOAD_LOCATION ${CPM_DOWNLOAD_LOCATION} ABSOLUTE)
 
-function(download_cpm)
-  message(STATUS "Downloading CPM.cmake to ${CPM_DOWNLOAD_LOCATION}")
-  file(DOWNLOAD
-       https://github.com/cpm-cmake/CPM.cmake/releases/download/v${CPM_DOWNLOAD_VERSION}/CPM.cmake
-       ${CPM_DOWNLOAD_LOCATION}
-  )
-endfunction()
-
-if(NOT (EXISTS ${CPM_DOWNLOAD_LOCATION}))
-  download_cpm()
-else()
-  # resume download if it previously failed
-  file(READ ${CPM_DOWNLOAD_LOCATION} check)
-  if("${check}" STREQUAL "")
-    download_cpm()
-  endif()
-endif()
+file(DOWNLOAD
+     https://github.com/cpm-cmake/CPM.cmake/releases/download/v${CPM_DOWNLOAD_VERSION}/CPM.cmake
+     ${CPM_DOWNLOAD_LOCATION} EXPECTED_HASH SHA256=${CPM_HASH_SUM}
+)
 
 include(${CPM_DOWNLOAD_LOCATION})

cmake/tools.cmake

@@ -11,7 +11,7 @@ include(${CMAKE_CURRENT_LIST_DIR}/CPM.cmake)
 # enables sanitizers support using the the `USE_SANITIZER` flag available values are: Address,
 # Memory, MemoryWithOrigins, Undefined, Thread, Leak, 'Address;Undefined'
 if(USE_SANITIZER OR USE_STATIC_ANALYZER)
-  CPMAddPackage("gh:StableCoder/cmake-scripts#1f822d1fc87c8d7720c074cde8a278b44963c354")
+  CPMAddPackage("gh:StableCoder/cmake-scripts@23.04")
 
   if(USE_SANITIZER)
     include(${cmake-scripts_SOURCE_DIR}/sanitizers.cmake)
@@ -62,5 +62,5 @@ endif()
 
 # enables CCACHE support through the USE_CCACHE flag possible values are: YES, NO or equivalent
 if(USE_CCACHE)
-  CPMAddPackage("gh:TheLartians/Ccache.cmake@1.2.3")
+  CPMAddPackage("gh:TheLartians/Ccache.cmake@1.2.4")
 endif()