.travis.yml

language: rust
rust: [ stable ]
cache: { cargo: true }
env: [ CARGO_TERM_COLOR=always ]

jobs:
  include:
    - stage: Test & Setup
      name: cargo fmt
      env: CACHE_BUCKET=fmt
      install: rustup component add rustfmt
      script: cargo fmt -- --check
    - name: cargo check
      env: CACHE_BUCKET=check
      script: ./scripts/check.sh
    - name: clippy
      env: CACHE_BUCKET=clippy
      install: rustup component add clippy
      script: cargo clippy --all-targets --all-features -- -A clippy::redundant_field_names
    - name: e2e tests
      env: CACHE_BUCKET=test
      install: source scripts/ci-test-deps.sh
      script: ./test/tests.sh

    # Prepare docker build environments
    - name: prepare build env

      cache: &build_cache
        cargo: false
        directories: [ $HOME/docker-cache ]
        # Docker builder images are cached for the next jobs below, but nothing is cached across different builds.
        # This is done as a security measure, so that the cache couldn't be poisoned to inject malicious code into future builds.

      script: |
        rm -rf ~/docker-cache
        mkdir -p ~/docker-cache

        docker build -t bwt-builder -f scripts/builder.Dockerfile .
        docker build -t bwt-builder-osx -f scripts/builder-osx.Dockerfile .

        docker save bwt-builder | gzip -2 > ~/docker-cache/bwt-builder.tar.gz
        docker save bwt-builder-osx | gzip -2 > ~/docker-cache/bwt-builder-osx.tar.gz

    - &build
      stage: Reproducible builds
      cache: *build_cache
      script:
      - >
        : ${IMAGE:=bwt-builder} &&
        echo -e tr''avis_fo''ld:start:build\\nBuilding... &&
        gzip -d < ~/docker-cache/$IMAGE.tar.gz | docker load &&
        docker run -e TARGETS -u `id -u` -v `pwd`:/usr/src/bwt -v ${CARGO_HOME:-$HOME/.cargo}:/usr/local/cargo $IMAGE &&
        echo tr''avis_fol''d:end:build
      - >
        rm -rf dist/*/ &&
        echo '-----BEGIN SHA256SUM-----' &&
        (cd dist && sha256sum * | sort) &&
        echo
      # XXX if: branch in (master, dev, latest) OR tag IS present

      name: linux
      before_script: export TARGETS=x86_64-linux
      # avoid using `env` so the cache won't get separated

    - <<: *build
      name: windows
      before_script: export TARGETS=x86_64-windows

    - <<: *build
      name: osx
      before_script: export TARGETS=x86_64-osx IMAGE=bwt-builder-osx

    - <<: *build
      name: arm32v7
      before_script: export TARGETS=arm32v7-linux

    - <<: *build
      name: arm64v8
      before_script: export TARGETS=arm64v8-linux