# https://circleci.com/docs/2.0/

version: 2
workflows:
  version: 2
  ci:
    jobs:
      - "lint"
      - "debian-8"
      - "debian-9"
      - "ubuntu-16.04"
      - "ubuntu-18.04"
      - "centos-7"
      - "fedora-27"
      - "fedora-28"

      - "deprecations"

jobs:
  lint:
    docker:
      - image: "circleci/python:2"

    steps:
      - "checkout"

      - run:
          name: "Install tox"
          command: |
            pip install --user tox

      - run:
          name: "Static-ish code checks"
          command: |
            ~/.local/bin/tox -e codechecks

  debian-8: &DEBIAN
    docker:
      - image: "debian:8"

    environment: &UTF_8_ENVIRONMENT
      # Tell Hypothesis which configuration we want it to use.
      TAHOE_LAFS_HYPOTHESIS_PROFILE: "ci"
      # Tell the C runtime things about character encoding (mainly to do with
      # filenames and argv).
      LANG: "en_US.UTF-8"
      # Select a tox environment to run for this job.
      TAHOE_LAFS_TOX_ENVIRONMENT: "coverage"

    steps:
      - run:
          node: "Install Git"
          command: |
            apt-get --quiet update
            apt-get --quiet --yes install git

      - "checkout"

      - run:
          name: "Bootstrap test environment"
          command: |
            # Avoid the /nonexistent home directory in nobody's /etc/passwd
            # entry.
            usermod --home /tmp/nobody nobody

            # Grant read access to nobody, the user which will eventually try
            # to test this checkout.
            mv /root/project /tmp/project

            # Python build/install toolchain wants to write to the source
            # checkout, too.
            chown --recursive nobody:nogroup /tmp/project

            apt-get --quiet --yes install \
                sudo \
                build-essential \
                python2.7 \
                python2.7-dev \
                libffi-dev \
                libssl-dev \
                libyaml-dev \
                virtualenv \
                ${EXTRA_PACKAGES}

      - run: &SETUP_VIRTUALENV
          name: "Setup virtualenv"
          # pip cannot install packages if the working directory is not
          # readable.
          working_directory: "/tmp"
          command: |
            # Set up the virtualenv as a non-root user so we can run the test
            # suite as a non-root user.  See below.
            sudo --set-home -u nobody virtualenv --python python2.7 /tmp/tests
            sudo --set-home -u nobody /tmp/tests/bin/pip install tox codecov
            # Get everything installed in it, too.
            sudo --set-home -u nobody /tmp/tests/bin/tox -c /tmp/project/tox.ini --workdir /tmp --notest -e ${TAHOE_LAFS_TOX_ENVIRONMENT}

      - run: &RUN_TESTS
          name: "Run test suite"
          # Something about when it re-uses an existing environment blows up
          # if the working directory is not readable.
          working_directory: "/tmp"
          command: |
            # Run the test suite as a non-root user.  This is the expected
            # usage some small areas of the test suite assume non-root
            # privileges (such as unreadable files being unreadable).
            #
            # Also run with /tmp as a workdir because the non-root user won't
            # be able to create the tox working filesystem state in the source
            # checkout because it is owned by root.
            sudo --set-home -u nobody /tmp/tests/bin/tox -c /tmp/project/tox.ini --workdir /tmp -e ${TAHOE_LAFS_TOX_ENVIRONMENT}

      - store_artifacts: &STORE_ARTIFACTS
          # Despite passing --workdir /tmp to tox above, it still runs trial
          # in the project source checkout.
          path: "/tmp/project/_trial_temp/test.log"

      - store_artifacts:
          # Store any other artifacts, too.  This is handy to allow other jobs
          # sharing most of the definition of this one to be able to
          # contribute artifacts easily.
          path: "/tmp/artifacts"

      - run:
          name: "Submit coverage results"
          command: |
            /tmp/tests/bin/codecov


  debian-9:
    <<: *DEBIAN
    docker:
      - image: "debian:9"


  deprecations:
    <<: *DEBIAN
    docker:
      - image: "debian:9"

    environment:
      <<: *UTF_8_ENVIRONMENT
      # Select the deprecations tox environments.
      TAHOE_LAFS_TOX_ENVIRONMENT: "deprecations,upcoming-deprecations"
      # Put the logs somewhere we can report them.
      TAHOE_LAFS_WARNINGS_LOG: "/tmp/artifacts/deprecation-warnings.log"


  ubuntu-16.04:
    <<: *DEBIAN
    docker:
      - image: "ubuntu:16.04"

    environment:
      <<: *UTF_8_ENVIRONMENT
      # Necessary for en_US LANG setting.
      EXTRA_PACKAGES: "language-pack-en"


  ubuntu-18.04:
    <<: *DEBIAN
    docker:
      - image: "ubuntu:18.04"


  centos-7: &RHEL_DERIV
    docker:
      - image: "centos:7"

    environment: *UTF_8_ENVIRONMENT

    steps:
      - run:
          node: "Install Git"
          command: |
            yum install --assumeyes git

      - "checkout"

      - run:
          name: "Bootstrap test environment"
          working_directory: "/tmp"
          command: |
            # Avoid the /nonexistent home directory in nobody's /etc/passwd
            # entry.
            usermod --home /tmp/nobody nobody

            # Grant read access to nobody, the user which will eventually try
            # to test this checkout.
            mv /root/project /tmp/project

            # Python build/install toolchain wants to write to the source
            # checkout, too.
            chown --recursive nobody:nobody /tmp/project

            yum install --assumeyes \
                sudo \
                make automake gcc gcc-c++ \
                python \
                python-devel \
                libffi-devel \
                openssl-devel \
                libyaml-devel \
                python-virtualenv

            # XXX net-tools is actually a Tahoe-LAFS runtime dependency!
            yum install --assumeyes \
                net-tools

      - run: *SETUP_VIRTUALENV
      - run: *RUN_TESTS

      - store_artifacts: *STORE_ARTIFACTS


  fedora-27:
    <<: *RHEL_DERIV
    docker:
      - image: "fedora:27"


  fedora-28:
    <<: *RHEL_DERIV
    docker:
      - image: "fedora:28"