name: CI

on:
  pull_request:
  push:
    branches-ignore:
      - 'dependabot/**'
      - staging-squash-merge.tmp

env:
  CARGO_TERM_COLOR: always
  NIGHTLY_TOOLCHAIN: nightly

jobs:
  build:
    strategy:
      matrix:
        os: [windows-latest, ubuntu-latest, macos-latest]
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v3
      - uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ runner.os }}-cargo-build-stable-${{ hashFiles('**/Cargo.toml') }}
      - uses: dtolnay/rust-toolchain@stable
      - name: Install alsa and udev
        run: sudo apt-get update; sudo apt-get install --no-install-recommends libasound2-dev libudev-dev
        if: runner.os == 'linux'
      - name: Build & run tests
        # See tools/ci/src/main.rs for the commands this runs
        run: cargo run -p ci -- test
        env:
          CARGO_INCREMENTAL: 0
          RUSTFLAGS: "-C debuginfo=0 -D warnings"

  ci:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ runner.os }}-cargo-ci-${{ hashFiles('**/Cargo.toml') }}
      - uses: dtolnay/rust-toolchain@stable
        with:
          components: rustfmt, clippy
      - name: Install alsa and udev
        run: sudo apt-get update; sudo apt-get install --no-install-recommends libasound2-dev libudev-dev libwayland-dev libxkbcommon-dev
      - name: CI job
        # See tools/ci/src/main.rs for the commands this runs
        run: cargo run -p ci -- lints

  miri:
    runs-on: ubuntu-latest
    timeout-minutes: 60
    steps:
      - uses: actions/checkout@v3
      - uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ runner.os }}-cargo-miri-${{ hashFiles('**/Cargo.toml') }}
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ env.NIGHTLY_TOOLCHAIN }}
          components: miri
      - name: Install alsa and udev
        run: sudo apt-get update; sudo apt-get install --no-install-recommends libasound2-dev libudev-dev libwayland-dev libxkbcommon-dev
      - name: CI job
        # To run the tests one item at a time for troubleshooting, use
        # cargo --quiet test --lib -- --list | sed 's/: test$//' | MIRIFLAGS="-Zmiri-disable-isolation -Zmiri-permissive-provenance -Zmiri-disable-weak-memory-emulation" xargs -n1 cargo miri test -p bevy_ecs --lib -- --exact
        run: cargo miri test -p bevy_ecs
        env:
          # -Zrandomize-layout makes sure we dont rely on the layout of anything that might change
          RUSTFLAGS: -Zrandomize-layout
          # https://github.com/rust-lang/miri#miri--z-flags-and-environment-variables
          # -Zmiri-disable-isolation is needed because our executor uses `fastrand` which accesses system time.
          # -Zmiri-permissive-provenance disables warnings against int2ptr casts (since those are used by once_cell)
          # -Zmiri-ignore-leaks is necessary because a bunch of tests don't join all threads before finishing.
          MIRIFLAGS: -Zmiri-ignore-leaks -Zmiri-disable-isolation -Zmiri-permissive-provenance

  check-compiles:
    runs-on: ubuntu-latest
    needs: ci
    steps:
      - uses: actions/checkout@v3
      - uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
            crates/bevy_ecs_compile_fail_tests/target/
          key: ${{ runner.os }}-cargo-check-compiles-${{ hashFiles('**/Cargo.toml') }}
      - uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: stable
          override: true
      - name: Install alsa and udev
        run: sudo apt-get update; sudo apt-get install --no-install-recommends libasound2-dev libudev-dev
      - name: Check Compile
        # See tools/ci/src/main.rs for the commands this runs
        run: cargo run -p ci -- compile

  build-wasm:
    runs-on: ubuntu-latest
    needs: build
    steps:
      - uses: actions/checkout@v3
      - uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ubuntu-assets-cargo-build-wasm-stable-${{ hashFiles('**/Cargo.toml') }}
      - uses: dtolnay/rust-toolchain@stable
        with:
          target: wasm32-unknown-unknown
      - name: Check wasm
        run: cargo check --target wasm32-unknown-unknown

  markdownlint:
    runs-on: ubuntu-latest
    needs: check-examples-readme-update-needed
    if: always()
    steps:
      - uses: actions/checkout@v3
        with:
          # Full git history is needed to get a proper list of changed files within `super-linter`
          fetch-depth: 0
      - name: Run Markdown Lint
        uses: docker://ghcr.io/github/super-linter:slim-v4
        env:
          MULTI_STATUS: false
          VALIDATE_ALL_CODEBASE: false
          VALIDATE_MARKDOWN: true
          DEFAULT_BRANCH: main
          # Not needed here as only one Linter is used.
          #GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  run-examples:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - name: Install Bevy dependencies
        run: |
          sudo apt-get update;
          DEBIAN_FRONTEND=noninteractive sudo apt-get install --no-install-recommends -yq \
            libasound2-dev libudev-dev;
      - name: install xvfb, llvmpipe and lavapipe
        run: |
          sudo apt-get update -y -qq
          sudo add-apt-repository ppa:oibaf/graphics-drivers -y
          sudo apt-get update
          sudo apt install -y xvfb libegl1-mesa libgl1-mesa-dri libxcb-xfixes0-dev mesa-vulkan-drivers
      - uses: actions/checkout@v3
      - uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ runner.os }}-cargo-run-examples-${{ hashFiles('**/Cargo.toml') }}
      - uses: dtolnay/rust-toolchain@stable
      - name: Build bevy
        # this uses the same command as when running the example to ensure build is reused
        run: |
          TRACE_CHROME=trace-alien_cake_addict.json CI_TESTING_CONFIG=.github/example-run/alien_cake_addict.ron cargo build --example alien_cake_addict --features "bevy_ci_testing,trace,trace_chrome"
      - name: Run examples
        run: |
          for example in .github/example-run/*.ron; do
            example_name=`basename $example .ron`
            echo "running $example_name - "`date`
            time TRACE_CHROME=trace-$example_name.json CI_TESTING_CONFIG=$example xvfb-run cargo run --example $example_name --features "bevy_ci_testing,trace,trace_chrome"
            sleep 10
          done
          zip traces.zip trace*.json
      - name: save traces
        uses: actions/upload-artifact@v3
        with:
          name: example-traces.zip
          path: traces.zip

  check-doc:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/cache@v2
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ runner.os }}-check-doc-${{ hashFiles('**/Cargo.toml') }}
      - uses: dtolnay/rust-toolchain@stable
      - name: Install alsa and udev
        run: sudo apt-get update; sudo apt-get install --no-install-recommends libasound2-dev libudev-dev libwayland-dev libxkbcommon-dev
        if: runner.os == 'linux'
      - name: Build and check doc
        # See tools/ci/src/main.rs for the commands this runs
        run: cargo run -p ci -- doc
        env:
          CARGO_INCREMENTAL: 0
          RUSTFLAGS: "-C debuginfo=0"
      # This currently report a lot of false positives
      # Enable it again once it's fixed - https://github.com/bevyengine/bevy/issues/1983
      # - name: Installs cargo-deadlinks
      #   run: cargo install --force cargo-deadlinks
      # - name: Checks dead links
      #   run: cargo deadlinks --dir target/doc/bevy
      #   continue-on-error: true

  check-missing-examples-in-docs:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - run: cargo run -p build-example-pages -- check-missing

  check-examples-readme-update-needed:
    needs: check-missing-examples-in-docs
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - run: cargo run -p build-example-pages -- update
      - name: Check for modified files
        run: |
          echo "if this step fails, run the following command and commit the changed file on your PR."
          echo " > cargo run -p build-example-pages -- update"
          git diff --quiet HEAD --

  check-unused-dependencies:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ runner.os }}-cargo-check-unused-dependencies-${{ hashFiles('**/Cargo.toml') }}
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ env.NIGHTLY_TOOLCHAIN }}
      - name: Installs cargo-udeps
        run: cargo install --force cargo-udeps
      - name: Install alsa and udev
        run: sudo apt-get update; sudo apt-get install --no-install-recommends libasound2-dev libudev-dev
      - name: Run cargo udeps
        run: cargo udeps
