Revert "Disable all Gitlab CI. (#1389)"

This reverts commit ddd0069. The faulty
test has been disabled in the `blueconfigs` repo.

.gitlab-ci.yml

@@ -1,3 +1,119 @@
-dummy:
+include:
+  - project: hpc/gitlab-pipelines
+    file:
+      - spack-build-components.gitlab-ci.yml
+      - github-project-pipelines.gitlab-ci.yml
+  - project: hpc/gitlab-upload-logs
+    file: enable-upload.yml
+
+variables:
+  CVF_BRANCH:
+    description: Branch of the channel validation framework (CVF) to trigger the CI of
+    value: main
+  SPACK_BRANCH:
+    description: Branch of BlueBrain Spack to use for the CI pipeline
+    value: develop
+  BLUECONFIGS_BRANCH:
+    description: Branch of blueconfigs to trigger the simulation stack pipeline from
+    value: main
+  NEURON_BRANCH:
+    description: Branch of neuron to build BlueBrain models against in the simulation stack pipeline (NEURON_COMMIT and NEURON_TAG also possible)
+    value: master
+  LIBSONATA_REPORT_BRANCH:
+    description: Branch of libsonata-report to build BlueBrain models against in the simulation stack pipeline (LIBSONATA_REPORT_COMMIT and LIBSONATA_REPORT_TAG also possible)
+    value: master
+  SPACK_DEPLOYMENT_SUFFIX:
+    description: Extra path component used when finding deployed software. Set to something like `pulls/1497` use software built for https://github.com/BlueBrain/spack/pull/1497. You probably want to set SPACK_BRANCH to the branch used in the relevant PR if you set this.
+    value: ''
+
+trigger cvf:
+  # Stop the globally-defined CVF_BRANCH above from being set in the child pipeline
+  inherit:
+    variables: false
+  needs: [spack_setup] # for SPACK_SETUP_COMMIT_MAPPING_URL
+  stage: .pre
+  rules:
+    # Don't run on PRs targeting the LLVM development branch
+    - if: '$CI_EXTERNAL_PULL_REQUEST_TARGET_BRANCH_NAME == "llvm"'
+      when: never
+    # Otherwise always run this
+    - when: always
+  trigger:
+    branch: ${CVF_BRANCH}
+    project: hpc/cvf
+    # Make the NMODL CI status depend on the CVF CI status
+    strategy: depend
+  variables:
+    # Tell CVF to use the same commits/branches as NMODL.
+    SPACK_ENV_FILE_URL: $SPACK_SETUP_COMMIT_MAPPING_URL
+
+simulation_stack:
+  stage: .pre
+  # Take advantage of GitHub PR description parsing in the spack_setup job.
+  needs: [spack_setup]
+  trigger:
+    branch: ${BLUECONFIGS_BRANCH}
+    project: hpc/sim/blueconfigs
+    # NMODL CI status depends on the BlueConfigs CI status.
+    strategy: depend
+  variables:
+    SPACK_ENV_FILE_URL: $SPACK_SETUP_COMMIT_MAPPING_URL
+    NMODL_RUN: "true"
+    # SPACK_SETUP_IGNORE_PACKAGE_VARIABLES needs to be set for
+    # the blueconfigs CI as well to let it know about both CVF
+    # and BLUECONFIGS
+    SPACK_SETUP_IGNORE_PACKAGE_VARIABLES: "CVF BLUECONFIGS"
+
+.spack_nmodl:
+  variables:
+    SPACK_PACKAGE: nmodl
+    SPACK_PACKAGE_SPEC: +python+tests
+
+spack_setup:
+  extends: .spack_setup_ccache
   script:
-    - echo "Temporarily disabled."
+    - !reference [.spack_setup_ccache, script]
+    # Setting {CVF, BLUECONFIGS}_BRANCH in the PR description will cause them to
+    # be set in the environment of this job, but because we put CVF and BLUECONFIGS
+    # in SPACK_SETUP_IGNORE_PACKAGE_VARIABLES then nothing will be done with it.
+    - echo "CVF_BRANCH=${CVF_BRANCH}" >> spack_clone_variables.env
+    - echo "BLUECONFIGS_BRANCH=${BLUECONFIGS_BRANCH}" >> spack_clone_variables.env
+  variables:
+    NMODL_COMMIT: ${CI_COMMIT_SHA}
+    # Enable fetching GitHub PR descriptions and parsing them to find out what
+    # branches to build of other projects.
+    PARSE_GITHUB_PR_DESCRIPTIONS: "true"
+    # Ignore CVF ang BLUECONFIGS branches since those don't have a spack package
+    SPACK_SETUP_IGNORE_PACKAGE_VARIABLES: "CVF BLUECONFIGS"
+
+build:intel:
+  extends:
+    - .spack_build
+    - .spack_nmodl
+  variables:
+    SPACK_PACKAGE_COMPILER: oneapi
+
+build:nvhpc:
+  extends:
+    - .spack_build
+    - .spack_nmodl
+  variables:
+    SPACK_PACKAGE_COMPILER: nvhpc
+    SPACK_PACKAGE_DEPENDENCIES: ^bison%gcc^flex%gcc^py-jinja2%gcc^py-sympy%gcc^py-pyyaml%gcc
+
+.nmodl_tests:
+  variables:
+    # https://github.com/BlueBrain/nmodl/issues/737
+    bb5_ntasks: 1
+
+test:intel:
+  extends:
+    - .ctest
+    - .nmodl_tests
+  needs: ["build:intel"]
+
+test:nvhpc:
+  extends:
+    - .ctest
+    - .nmodl_tests
+  needs: ["build:nvhpc"]