gitlab-ci: add jobs to test CMake with external dependencies on Linux

Test that CMake works without its bundled dependencies.
For some dependencies, test using the minimum supported version.

.gitlab/ci/configure_debian10_aarch64_extdeps.cmake

@@ -0,0 +1 @@
+include("${CMAKE_CURRENT_LIST_DIR}/configure_extdeps_common.cmake")

.gitlab/ci/configure_debian10_extdeps.cmake

@@ -0,0 +1 @@
+include("${CMAKE_CURRENT_LIST_DIR}/configure_extdeps_common.cmake")

.gitlab/ci/configure_extdeps_common.cmake

@@ -0,0 +1,5 @@
+set(CMAKE_USE_SYSTEM_LIBRARIES ON CACHE BOOL "")
+set(CMAKE_SKIP_BOOTSTRAP_TEST ON CACHE BOOL "")
+set(CMake_TEST_Qt6 OFF CACHE BOOL "")
+
+include("${CMAKE_CURRENT_LIST_DIR}/configure_common.cmake")

.gitlab/ci/configure_fedora36_extdeps.cmake

@@ -0,0 +1 @@
+include("${CMAKE_CURRENT_LIST_DIR}/configure_extdeps_common.cmake")

.gitlab/ci/ctest_standalone.cmake

@@ -3,8 +3,8 @@ cmake_minimum_required(VERSION 3.8)
 include("${CMAKE_CURRENT_LIST_DIR}/gitlab_ci.cmake")
 include("${CMAKE_CURRENT_LIST_DIR}/env_$ENV{CMAKE_CONFIGURATION}.cmake" OPTIONAL)
 
-set(cmake_args
-  -C "${CMAKE_CURRENT_LIST_DIR}/configure_$ENV{CMAKE_CONFIGURATION}.cmake")
+set(initial_cache "${CMAKE_CURRENT_LIST_DIR}/configure_$ENV{CMAKE_CONFIGURATION}.cmake")
+set(cmake_args -C "${initial_cache}")
 
 include(ProcessorCount)
 ProcessorCount(nproc)
@@ -25,6 +25,8 @@ ctest_update()
 
 if("$ENV{CMAKE_CI_BOOTSTRAP}")
   set(CTEST_CONFIGURE_COMMAND "\"${CTEST_SOURCE_DIRECTORY}/bootstrap\" --parallel=${nproc}")
+elseif("$ENV{CMAKE_CONFIGURATION}" MATCHES "extdeps")
+  set(CTEST_CONFIGURE_COMMAND "/opt/extdeps/bin/cmake -C \"${initial_cache}\" -G \"${CTEST_CMAKE_GENERATOR}\" \"${CTEST_SOURCE_DIRECTORY}\"")
 endif()
 
 # Configure the project.

.gitlab/ci/env_debian10_aarch64_extdeps.sh

@@ -0,0 +1 @@
+source .gitlab/ci/env_extdeps_common.sh

.gitlab/ci/env_debian10_extdeps.sh

@@ -0,0 +1 @@
+source .gitlab/ci/env_extdeps_common.sh

.gitlab/ci/env_extdeps_common.sh

@@ -0,0 +1,5 @@
+.gitlab/ci/extdeps-linux.sh
+
+export CMAKE_PREFIX_PATH=/opt/extdeps
+export PATH=/opt/extdeps/bin:$PATH
+export LD_LIBRARY_PATH=/opt/extdeps/lib

.gitlab/ci/env_fedora36_extdeps.sh

@@ -0,0 +1 @@
+source .gitlab/ci/env_extdeps_common.sh

.gitlab/ci/extdeps-linux.sh

@@ -0,0 +1,62 @@
+#!/bin/sh
+
+set -e
+
+mkdir -p /opt/extdeps/src
+cd /opt/extdeps/src
+export PATH=/opt/extdeps/bin:$PATH
+
+#----------------------------------------------------------------------------
+# cmake
+
+case "$(uname -s)-$(uname -m)" in
+    Linux-x86_64)
+        cmake_version="3.13.5"
+        cmake_sha256sum="e2fd0080a6f0fc1ec84647acdcd8e0b4019770f48d83509e6a5b0b6ea27e5864"
+        cmake_platform="Linux-x86_64"
+        ;;
+    Linux-aarch64)
+        cmake_version="3.19.8"
+        cmake_sha256sum="807f5afb2a560e00af9640e496d5673afefc2888bf0ed076412884a5ebb547a1"
+        cmake_platform="Linux-aarch64"
+        ;;
+    *)
+        echo "Unrecognized platform $(uname -s)-$(uname -m)"
+        exit 1
+        ;;
+esac
+readonly shatool
+readonly cmake_sha256sum
+readonly cmake_platform
+
+readonly cmake_filename="cmake-$cmake_version-$cmake_platform"
+readonly cmake_tarball="$cmake_filename.tar.gz"
+
+echo "$cmake_sha256sum  $cmake_tarball" > cmake.sha256sum
+curl -OL "https://github.com/Kitware/CMake/releases/download/v$cmake_version/$cmake_tarball"
+sha256sum --check cmake.sha256sum
+tar xzf "$cmake_tarball" -C /opt/extdeps --strip-components=1
+rm -f "$cmake_tarball" cmake.sha256sum
+
+#----------------------------------------------------------------------------
+# libuv
+
+curl -L -o libuv-1.28.0.tar.gz https://github.com/libuv/libuv/archive/refs/tags/v1.28.0.tar.gz
+tar xzf libuv-1.28.0.tar.gz
+cmake -S libuv-1.28.0 -B libuv-1.28.0-build \
+  -DCMAKE_INSTALL_PREFIX=/opt/extdeps
+cmake --build libuv-1.28.0-build --target install
+rm -rf libuv-1.28.0*
+
+#----------------------------------------------------------------------------
+# jsoncpp
+
+curl -L -o jsoncpp-1.6.0.tar.gz https://github.com/open-source-parsers/jsoncpp/archive/refs/tags/1.6.0.tar.gz
+tar xzf jsoncpp-1.6.0.tar.gz
+cmake -S jsoncpp-1.6.0 -B jsoncpp-1.6.0-build \
+  -DCMAKE_BUILD_TYPE=Release \
+  -DJSONCPP_LIB_BUILD_STATIC=ON \
+  -DJSONCPP_LIB_BUILD_SHARED=ON \
+  -DCMAKE_INSTALL_PREFIX=/opt/extdeps
+cmake --build jsoncpp-1.6.0-build --target install
+rm -rf jsoncpp-1.6.0*