CI: provide ccache at build time

.gitlab/ci/config/ccache.cmake

@@ -0,0 +1,61 @@
+##============================================================================
+##  Copyright (c) Kitware, Inc.
+##  All rights reserved.
+##  See LICENSE.txt for details.
+##
+##  This software is distributed WITHOUT ANY WARRANTY; without even
+##  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+##  PURPOSE.  See the above copyright notice for more information.
+##============================================================================
+
+cmake_minimum_required(VERSION 3.0 FATAL_ERROR)
+
+set(version 4.6.1)
+set(arch x86_64)
+
+if(CMAKE_HOST_SYSTEM_NAME STREQUAL "Linux")
+  set(sha256sum da1e1781bc1c4b019216fa16391af3e1daaee7e7f49a8ec9b0cdc8a1d05c50e2)
+  set(base_url https://github.com/ccache/ccache/releases/download)
+  set(platform linux)
+  set(extension tar.xz)
+elseif(CMAKE_HOST_SYSTEM_NAME STREQUAL "Darwin")
+  set(sha256sum 3e36ba8c80fbf7f2b95fe0227b9dd1ca6143d721aab052caf0d5729769138059)
+  set(full_url https://gitlab.kitware.com/utils/ci-utilities/-/package_files/534/download)
+  set(filename ccache)
+  set(extension tar.gz)
+elseif(CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
+  set(sha256sum a6c6311973aa3d2aae22424895f2f968e5d661be003b25f1bd854a5c0cd57563)
+  set(base_url https://github.com/ccache/ccache/releases/download)
+  set(platform windows)
+  set(extension zip)
+else()
+  message(FATAL_ERROR "Unrecognized platform ${CMAKE_HOST_SYSTEM_NAME}")
+endif()
+
+if(NOT DEFINED filename)
+  set(filename "ccache-${version}-${platform}-${arch}")
+endif()
+
+set(tarball "${filename}.${extension}")
+
+if(NOT DEFINED full_url)
+  set(full_url "${base_url}/v${version}/${tarball}")
+endif()
+
+file(DOWNLOAD
+  "${full_url}" .gitlab/${tarball}
+  EXPECTED_HASH SHA256=${sha256sum}
+  SHOW_PROGRESS
+  )
+
+execute_process(
+  COMMAND ${CMAKE_COMMAND} -E tar xf ${tarball}
+  WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/.gitlab
+  RESULT_VARIABLE extract_results
+  )
+
+if(extract_results)
+  message(FATAL_ERROR "Extracting `${tarball}` failed: ${extract_results}.")
+endif()
+
+file(RENAME .gitlab/${filename} .gitlab/ccache)

.gitlab/ci/macos.yml

@@ -42,7 +42,11 @@ test:macos_xcode13:
   before_script:
     - .gitlab/ci/config/cmake.sh
     - export PATH=$PWD/.gitlab/cmake/bin:$PATH
+    - "cmake -VV -P .gitlab/ci/config/ccache.cmake"
+    - export PATH=$PWD/.gitlab/ccache:$PATH
     - "cmake --version"
+    - "ccache --version"
+    - "ninja --version"
     - "cmake -V -P .gitlab/ci/config/fetch_vtkm_tags.cmake"
     - "cmake -V -P .gitlab/ci/config/gitlab_ci_setup.cmake"
     - "ctest -VV -S .gitlab/ci/ctest_configure.cmake"