Modernize cmake syntax

.clang-format

@@ -1,11 +1,18 @@
+# Note: if you change any of the settings here, please reformat the entire
+# codebase as part of the same commit, that will prevent subsequent commits
+# from being flagged as being improperly formatted.
+
 ---
-# This configuration requires clang-format 3.8 or higher.
+# This configuration requires clang-format 8.0 or higher.
 BasedOnStyle: Mozilla
 AlignAfterOpenBracket: DontAlign
 AlignOperands: false
 AlwaysBreakAfterReturnType: None
 AlwaysBreakAfterDefinitionReturnType: None
 BreakBeforeBraces: Allman
+BinPackArguments: true
+BinPackParameters: true
 ColumnLimit: 100
-Standard: Cpp03
+SpaceAfterTemplateKeyword: true
+Standard: Cpp11
 ...

.gitattributes

@@ -5,7 +5,7 @@
 *.sh.in          crlf=input
 
 # Custom attribute to mark sources as using our C code style.
-[attr]our-c-style  whitespace=tab-in-indent,-blank-at-eol  format.clang-format
+[attr]our-c-style  whitespace=tab-in-indent,-blank-at-eol  format.clang-format=9
 
 *.c              our-c-style
 *.h              our-c-style

.gitlab-ci.yml

@@ -0,0 +1,51 @@
+workflow:
+   rules:
+     - if: $CI_PIPELINE_SOURCE == "push" && $CI_COMMIT_REF_NAME == "master"
+       when: always
+     - if: $CI_MERGE_REQUEST_ID
+       when: always
+     - when: never
+
+stages:
+  - build
+  - test
+
+.latest:
+  image: "kitware/paraview-for-ci:latest"
+
+build_linux:
+  extends:
+    - .latest
+  stage: build
+  script:
+    - mkdir -p build
+    - cd build
+    - cmake -DCMAKE_BUILD_TYPE=Release -DBUILD_TESTING=ON ..
+    - cmake --build . --parallel 2
+  tags:
+    - docker
+    - linux-x86_64
+    - paraview
+  artifacts:
+    expire_in: 1h
+    when: always
+    paths:
+      - build/
+  interruptible: true
+
+test_linux:
+  extends:
+    - .latest
+  stage: test
+  script:
+    - cd build
+    - xvfb-run ctest -j 2 --output-on-failure --no-tests=error || xvfb-run ctest -j 1 --no-tests=error --rerun-failed -VV
+  tags:
+    - docker
+    - linux-x86_64
+    - paraview
+  interruptible: true
+  dependencies:
+    - build_linux
+  needs:
+    - build_linux