Change CI pipeline

- merge build and test targets: this avoids recompiling most of the
same files twice in the same conditions (build have been removed)
- remove gcc-debug targets. Actually gcc-coverage use debug options

This should lead to faster ci runs

.gitlab-ci.yml

 stages:
-  - build
   - test
   - coverage
 
@@ -9,7 +8,6 @@ variables:
 include:
   - local: '/.gitlab-ci/clang10-mpi-debug.yml'
   - local: '/.gitlab-ci/clang10-mpi-release.yml'
-  - local: '/.gitlab-ci/gcc10-mpi-debug.yml'
   - local: '/.gitlab-ci/gcc10-mpi-coverage.yml'
   - local: '/.gitlab-ci/gcc10-mpi-release.yml'
   - local: '/.gitlab-ci/gcc10-seq-coverage.yml'

.gitlab-ci/clang10-mpi-debug.yml

-build:clang10-mpi-debug:
-  image: localhost:5000/ubuntu_clang10_mpi
-  stage: build
-  needs: []
-  script:
-    - mkdir -p build/clang10-debug-mpi
-    - cd build/clang10-debug-mpi
-    - CXX=clang++-10 CC=clang-10 cmake ../.. -DCMAKE_BUILD_TYPE=Debug
-    - make pugs
-  cache:
-    key: "${CI_COMMIT_REF_SLUG}-clang10-debug-mpi"
-    paths:
-      - build/clang10-debug-mpi
-    untracked: true
-
 test:clang10-mpi-debug:
   image: localhost:5000/ubuntu_clang10_mpi
   stage: test
-  needs: ["build:clang10-mpi-debug"]
+  needs: []
   script:
     - mkdir -p build/clang10-debug-mpi
     - cd build/clang10-debug-mpi
     - CXX=clang++-10 CC=clang-10 cmake ../.. -DCMAKE_BUILD_TYPE=Debug
-    - make test
+    - make
+    - make check
   cache:
     key: "${CI_COMMIT_REF_SLUG}-clang10-debug-mpi"
     paths:

.gitlab-ci/clang10-mpi-release.yml

-build:clang10-mpi-release:
-  image: localhost:5000/ubuntu_clang10_mpi
-  stage: build
-  needs: []
-  script:
-    - mkdir -p build/clang10-release-mpi
-    - cd build/clang10-release-mpi
-    - CXX=clang++-10 CC=clang-10 cmake ../.. -DCMAKE_BUILD_TYPE=Release -DCLANG_FORMAT=/usr/bin/clang-format-10
-    - make pugs
-  cache:
-    key: "${CI_COMMIT_REF_SLUG}-clang10-release-mpi"
-    paths:
-      - build/clang10-release-mpi
-    untracked: true
-
 test:clang10-mpi-release:
   image: localhost:5000/ubuntu_clang10_mpi
   stage: test
-  needs: ["build:clang10-mpi-release"]
+  needs: []
   script:
     - mkdir -p build/clang10-release-mpi
     - cd build/clang10-release-mpi
     - CXX=clang++-10 CC=clang-10 cmake ../.. -DCMAKE_BUILD_TYPE=Release -DCLANG_FORMAT=/usr/bin/clang-format-10
-    - make test
+    - make
+    - make check
   cache:
     key: "${CI_COMMIT_REF_SLUG}-clang10-release-mpi"
     paths:

.gitlab-ci/gcc10-mpi-coverage.yml

 coverage:gcc10-mpi-coverage:
   image: localhost:5000/ubuntu_gcc10_mpi
   stage: coverage
+  needs: []
   script:
     - mkdir -p build/gcc10-cov-mpi
     - cd build/gcc10-cov-mpi
     - CXX=g++-10 CC=gcc-10 cmake ../.. -DCMAKE_BUILD_TYPE=Coverage
-    - make pugs
+    - make
     - make coverage
   cache:
     key: "${CI_COMMIT_REF_SLUG}-gcc10-cov-mpi"

.gitlab-ci/gcc10-mpi-debug.yml

-build:gcc10-mpi-debug:
-  image: localhost:5000/ubuntu_gcc10_mpi
-  stage: build
-  needs: []
-  script:
-    - mkdir -p build/gcc10-debug-mpi
-    - cd build/gcc10-debug-mpi
-    - CXX=g++-10 CC=gcc-10 cmake ../.. -DCMAKE_BUILD_TYPE=Debug
-    - make pugs
-  cache:
-    key: "${CI_COMMIT_REF_SLUG}-gcc10-debug-mpi"
-    paths:
-      - build/gcc10-debug-mpi
-    untracked: true
-
-test:gcc10-mpi-debug:
-  image: localhost:5000/ubuntu_gcc10_mpi
-  stage: test
-  needs: ["build:gcc10-mpi-debug"]
-  script:
-    - mkdir -p build/gcc10-debug-mpi
-    - cd build/gcc10-debug-mpi
-    - CXX=g++-10 CC=gcc-10 cmake ../.. -DCMAKE_BUILD_TYPE=Debug
-    - make test
-  cache:
-    key: "${CI_COMMIT_REF_SLUG}-gcc10-debug-mpi"
-    paths:
-      - build/gcc10-debug-mpi
-    untracked: true

.gitlab-ci/gcc10-mpi-release.yml

-build:gcc10-mpi-release:
-  image: localhost:5000/ubuntu_gcc10_mpi
-  stage: build
-  needs: []
-  script:
-    - mkdir -p build/gcc10-release-mpi
-    - cd build/gcc10-release-mpi
-    - CXX=g++-10 CC=gcc-10 cmake ../.. -DCMAKE_BUILD_TYPE=Release
-    - make pugs
-  cache:
-    key: "${CI_COMMIT_REF_SLUG}-gcc10-release-mpi"
-    paths:
-      - build/gcc10-release-mpi
-    untracked: true
-
 test:gcc10-mpi-release:
   image: localhost:5000/ubuntu_gcc10_mpi
   stage: test
-  needs: ["build:gcc10-mpi-release"]
+  needs: []
   script:
     - mkdir -p build/gcc10-release-mpi
     - cd build/gcc10-release-mpi
     - CXX=g++-10 CC=gcc-10 cmake ../.. -DCMAKE_BUILD_TYPE=Release
+    - make
     - make test
   cache:
     key: "${CI_COMMIT_REF_SLUG}-gcc10-release-mpi"

.gitlab-ci/gcc10-seq-coverage.yml

 coverage:gcc10-seq-coverage:
   image: localhost:5000/ubuntu_gcc10
   stage: coverage
+  needs: []
   script:
     - mkdir -p build/gcc10-cov
     - cd build/gcc10-cov
     - CXX=g++-10 CC=gcc-10 cmake ../.. -DCMAKE_BUILD_TYPE=Coverage
-    - make pugs
+    - make
     - make coverage
   cache:
     key: "${CI_COMMIT_REF_SLUG}-gcc10-cov"

.gitlab-ci/gcc10-seq-release.yml

-build:gcc10-seq-release:
-  image: localhost:5000/ubuntu_gcc10
-  stage: build
-  needs: []
-  script:
-    - mkdir -p build/gcc10-release-seq
-    - cd build/gcc10-release-seq
-    - CXX=g++-10 CC=gcc-10 cmake ../.. -DCMAKE_BUILD_TYPE=Release
-    - make pugs
-  cache:
-    key: "${CI_COMMIT_REF_SLUG}-gcc10-release-seq"
-    paths:
-      - build/gcc10-release-seq
-    untracked: true
-
 test:gcc10-seq-release:
   image: localhost:5000/ubuntu_gcc10
   stage: test
-  needs: ["build:gcc10-seq-release"]
+  needs: []
   script:
     - mkdir -p build/gcc10-release-seq
     - cd build/gcc10-release-seq
     - CXX=g++-10 CC=gcc-10 cmake ../.. -DCMAKE_BUILD_TYPE=Release
-    - make test
+    - make
+    - make check
   cache:
     key: "${CI_COMMIT_REF_SLUG}-gcc10-release-seq"
     paths: