gitlab-ci: upload JUnit reports for builds

GitLab can render test results which come from JUnit files and inform
which tests have started failing on an MR.

.gitlab-ci.yml

@@ -163,6 +163,7 @@ test:debian10-ninja:
         - .debian10_ninja
         - .cmake_test_linux_release
         - .linux_builder_tags_qt
+        - .cmake_junit_artifacts
         - .run_dependent
         - .needs_centos6_x86_64
 
@@ -171,6 +172,7 @@ test:debian10-aarch64-ninja:
         - .debian10_aarch64_ninja
         - .cmake_test_linux_release
         - .linux_builder_tags_aarch64_qt
+        - .cmake_junit_artifacts
         - .run_dependent
         - .needs_centos7_aarch64
     variables:
@@ -209,6 +211,7 @@ test:fedora34-makefiles-nospace:
         - .fedora34_makefiles
         - .cmake_test_linux_release
         - .linux_builder_tags_qt
+        - .cmake_junit_artifacts
         - .run_dependent
         - .needs_centos6_x86_64
     variables:
@@ -221,6 +224,7 @@ test:cuda10.2-nvidia:
         - .cuda10.2_nvidia
         - .cmake_test_linux_release
         - .linux_builder_tags_cuda
+        - .cmake_junit_artifacts
         - .run_dependent
         - .needs_centos6_x86_64
 
@@ -259,6 +263,7 @@ test:fedora34-ninja-multi:
         - .fedora34_ninja_multi
         - .cmake_test_linux_external
         - .linux_builder_tags_qt
+        - .cmake_junit_artifacts
         - .run_dependent
     dependencies:
         - test:fedora34-ninja
@@ -625,6 +630,7 @@ test:macos-x86_64-xcode:
         - .macos_x86_64_xcode
         - .cmake_test_macos_external
         - .macos_x86_64_builder_ext_tags
+        - .cmake_junit_artifacts
         - .run_dependent
     dependencies:
         - test:macos-x86_64-ninja
@@ -636,6 +642,7 @@ test:macos-arm64-xcode:
         - .macos_arm64_xcode
         - .cmake_test_macos_external
         - .macos_arm64_builder_ext_tags
+        - .cmake_junit_artifacts
         - .run_dependent
     dependencies:
         - test:macos-arm64-ninja
@@ -717,6 +724,7 @@ test:windows-vs2019-x64:
         - .windows_vs2019_x64
         - .cmake_test_windows_external
         - .windows_builder_ext_tags
+        - .cmake_junit_artifacts
         - .run_dependent
     dependencies:
         - test:windows-vs2019-x64-ninja

.gitlab/artifacts.yml

@@ -82,11 +82,22 @@
             - build/cmake-*.tar.gz
             - build/cmake-*.zip
 
+.cmake_junit_artifacts:
+    artifacts:
+        expire_in: 1d
+        when: always
+        reports:
+            junit:
+                - build/junit.xml
+
 .cmake_test_artifacts:
     artifacts:
         expire_in: 1d
         # External testing can be useful even if test jobs fail.
         when: always
+        reports:
+            junit:
+                - build/junit.xml
         paths:
             # Take the install tree.
             - build/install/

.gitlab/ci/ctest_test.cmake

@@ -20,6 +20,7 @@ include("${CMAKE_CURRENT_LIST_DIR}/ctest_exclusions.cmake")
 ctest_test(
   PARALLEL_LEVEL "${nproc}"
   TEST_LOAD "${nproc}"
+  OUTPUT_JUNIT "${CTEST_BINARY_DIRECTORY}/junit.xml"
   RETURN_VALUE test_result
   EXCLUDE "${test_exclusions}")
 ctest_submit(PARTS Test)

.gitlab/ci/ctest_test_external.cmake

@@ -74,6 +74,7 @@ include("${CMAKE_CURRENT_LIST_DIR}/ctest_exclusions.cmake")
 ctest_test(
   PARALLEL_LEVEL "${nproc}"
   TEST_LOAD "${nproc}"
+  OUTPUT_JUNIT "${CTEST_BINARY_DIRECTORY}/junit.xml"
   RETURN_VALUE test_result
   ${ctest_label_args}
   EXCLUDE "${test_exclusions}")