.gitlab-ci.yml

workflow:
  rules:  # Do not create pipelines for tag updates
    - if: $CI_COMMIT_TAG
      when: never
    - when: always

stages:
  - environment
  - test
  - deploy

before_script:
  - project_name='scons-novice'
  # Assume AEA server
  - aea_compute_path="/projects/aea_compute"
  - scratch_path="/scratch/${USER}"
  - ci_environment_path="${aea_compute_path}"
  - echo ${aea_compute_path}
  - echo ${scratch_path}
  - echo ${ci_environment_path}
  - if [[ ! -d ${aea_compute_path} ]]; then exit 1; fi
  - if [[ ! -d ${scratch_path} ]]; then exit 1; fi
  - if [[ ! -d ${ci_environment_path} ]]; then exit 1; fi
  # Prep module command and load system module(s)
  - aea_modulefiles="${aea_compute_path}/modulefiles"
  - module use ${aea_modulefiles}
  # Start with an AEA environment to put Conda on PATH
  - environment_choices="aea-nightly aea-quarterly aea-release"
  - for env in ${environment_choices}; do if [[ -d "${aea_compute_path}/${env}" ]]; then base_environment=${env}; break; fi; done
  - echo ${base_environment}
  - if [[ -z ${base_environment} ]]; then exit 1; fi
  - module load ${base_environment}
  # Activate CI environment if available. If not, rely on environment job running before other jobs.
  - project_environment="${project_name}-dev"
  - environment_path="${ci_environment_path}/${project_environment}"
  - echo ${environment_path}
  - if [[ -d ${environment_path} ]]; then conda activate ${environment_path}; fi
  - conda info

environment:
  stage: environment
  variables:
    GIT_STRATEGY: clone
  rules:
    - if: $CI_PIPELINE_SOURCE == "schedule"
    - if: $CI_PIPELINE_SOURCE == "merge_request_event"
    - if: $CI_COMMIT_BRANCH == "main"
  script:
    # Job variables
    - echo ${base_environment}
    - echo ${environment_path}
    - echo ${aea_modulefiles}
    - if [[ -z ${base_environment} ]]; then exit 1; fi
    - if [[ -z ${environment_path} ]]; then exit 1; fi
    - if [[ -z ${aea_modulefiles} ]]; then exit 1; fi
    - echo ${CI_MERGE_REQUEST_ID}
    - echo ${CI_COMMIT_BEFORE_SHA}
    - echo ${CI_COMMIT_BRANCH}
    # Always build from the base/aea compute environment with boa/libmamba
    - if [[ ${CONDA_PREFIX} == ${environment_path} ]]; then conda deactivate; fi
    # Don't rebuild environment for merge request pipelines unless the environment is missing
    - if [[ -d "${environment_path}" ]]; then exists=true; else exists=false; fi
    - if [[ $CI_MERGE_REQUEST_ID ]] && ${exists}; then exit 0; fi
    # Don't rebuild environment for main unless the environment file has changed or the environment doesn't exist
    - files=$(git diff --name-only ${CI_COMMIT_SHA} ${CI_COMMIT_BEFORE_SHA}) || true
    - if [[ $CI_COMMIT_BRANCH == "main" ]]; then production=true; else production=false; fi
    - if [[ "${files}" == *"environment.yml"* ]]; then modified=true; else modified=false; fi
    - if ${production} && ${exists} && ! ${modified}; then exit 0; fi
    # Re-build the Conda environment on changes to environment files
    - conda env create --prefix ${environment_path} --file environment.yml --solver=libmamba --force
    # Build the R-packages
    - conda activate ${environment_path}
    - PROJECT_TMPDIR="/scratch/$USER/${project_name}/workbench"
    - mkdir -p ${PROJECT_TMPDIR}
    - TMPDIR=${PROJECT_TMPDIR} R -e 'install.packages(c("sandpaper", "varnish", "pegboard", "tinkr"), repos = list(carpentries="https://carpentries.r-universe.dev/", CRAN="https://cloud.r-project.org"))'
    # Remove write permissions from group to avoid accidental environment changes
    - chmod -R 755 ${environment_path}
  tags:
    - shell
    - aea
    - linux

test:
  stage: test
  variables:
    GIT_STRATEGY: clone
  rules:
    - if: $CI_PIPELINE_SOURCE == "schedule"
    - if: $CI_PIPELINE_SOURCE == "merge_request_event"
  script:
    - R -e 'sandpaper::build_lesson(preview = FALSE)'
    - unzip episodes/files/scons-lesson.zip
    - cd scons-lesson
    - lesson_directories=(../episodes/files/code/*/)
    - echo ${lesson_directories[@]}
    - for directory in ${lesson_directories[@]}; do cp $directory/* .; scons . --clean && scons .; done
  tags:
    - shell
    - aea
    - linux

# It MUST be called pages
pages:
  stage: deploy
  variables:
    GIT_STRATEGY: clone
  dependencies: []
  rules:
    - if: $CI_PIPELINE_SOURCE == "schedule"
      when: never
    - if: $CI_COMMIT_BRANCH == "main"
  script:
    - rm -rf public && mkdir -p public
    - R -e 'sandpaper::build_lesson(preview = FALSE)'
    - cp -r site/docs/* public
  artifacts:
    paths:
      # It MUST be called public
      - public
  tags:
    - shell
    - aea
    - linux