build-and-test.yml

name: Build and run tests

on:
  push:
    branches:
      - main
  pull_request:
    types: [ opened, synchronize, reopened, ready_for_review ]
    branches:
      - main
      - 'epic/**'
      - 'support/**'
    paths:
      - '.github/workflows/build-and-test.yml'
      - '.github/actions/**'
      - '**.rs'
      - '**.toml'
      - 'bindings/**'
      - '!bindings/**.md'

env:
  RUST_BACKTRACE: full
  CARGO_INCREMENTAL: 0 # disabled to reduce target cache size and improve sccache (https://github.com/mozilla/sccache#known-caveats)
  SCCACHE_CACHE_SIZE: 2G
  SCCACHE_IDLE_TIMEOUT: 0
  # SCCACHE_RECACHE: 1 # uncomment to clear sccache cache, then re-comment

jobs:
  check-for-run-condition:
    runs-on: ubuntu-latest
    outputs:
      should-run: ${{ !github.event.pull_request || github.event.pull_request.draft == false }}
    steps:
      - run: |
          # this run step does nothing, but is needed to get the job output

  check-for-modification:
    needs: check-for-run-condition
    if: ${{ needs.check-for-run-condition.outputs.should-run == 'true' }}
    runs-on: ubuntu-latest
    outputs:
      core-modified: ${{ steps.change-detection.outputs.core-modified }} # map step output to job output
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0
      - name: Run change detection
        id: change-detection
        run: |
          echo comparing $(git rev-parse HEAD^) and $(git rev-parse HEAD)
          #https://git-scm.com/docs/git-diff#Documentation/git-diff.txt-emgitdiffemltoptionsgt--ltpathgt82308203
          if [[ $(git diff HEAD^ HEAD -- ':!bindings') != '' ]]; then
              # modified
              CORE_MODIFIED=true
          else
              # unmodified
             CORE_MODIFIED=false
          fi
          echo CORE_MODIFIED=$CORE_MODIFIED
          echo "core-modified=$CORE_MODIFIED" >> $GITHUB_OUTPUT

  build-and-test:
    runs-on: ${{ matrix.os }}
    needs: [ check-for-run-condition, check-for-modification ]
    if: ${{ needs.check-for-run-condition.outputs.should-run == 'true' && needs.check-for-modification.outputs.core-modified == 'true' }}
    strategy:
      fail-fast: false
      matrix:
        os: [ ubuntu-latest, macos-latest, windows-latest ]
        include:
          - os: ubuntu-latest
            sccache-path: /home/runner/.cache/sccache
          - os: macos-latest
            sccache-path: /Users/runner/Library/Caches/Mozilla.sccache
          - os: windows-latest
            sccache-path: C:\\Users\\runner\\AppData\\Local\\Mozilla\\sccache\\cache
    env:
      SCCACHE_DIR: ${{ matrix.sccache-path }}
      RUSTC_WRAPPER: sccache

    steps:
      - uses: actions/checkout@v3

      - name: Setup Rust and cache
        uses: './.github/actions/rust/rust-setup'
        with:
          os: ${{ runner.os }}
          job: ${{ github.job }}
          cargo-cache-enabled: true
          target-cache-enabled: true
          sccache-enabled: true
          sccache-path: ${{ matrix.sccache-path }}

      - name: Setup sccache
        uses: './.github/actions/rust/sccache/setup-sccache'
        with:
          os: ${{matrix.os}}

      - name: Check --no-default-features
        if: matrix.os == 'ubuntu-latest'
        run: |
          cargo metadata --format-version 1 | \
          jq -r '.workspace_members[] | select(contains("examples") | not)' | \
          awk '{print $1}' | \
          xargs -I {} cargo check -p {} --no-default-features

      - name: Check default features
        if: matrix.os == 'ubuntu-latest'
        run: |
          cargo metadata --format-version 1 | \
          jq -r '.workspace_members[] | select(contains("examples") | not)' | \
          awk '{print $1}' | \
          xargs -I {} cargo check -p {}

      # Clean debug target to avoid bloating the GitHub Actions cache.
      # The previous builds cannot be re-used at all for the full --all-features --release build anyway.
      - name: Clean target
        if: matrix.os == 'ubuntu-latest'
        run: cargo clean

        # Build the library, tests, and examples without running them to avoid recompilation in the run tests step
      - name: Build with all features
        run: cargo build --workspace --tests --examples --all-features --release

      - name: Start private tangle
        if: matrix.os == 'ubuntu-latest'
        uses: './.github/actions/private-tangle/setup'

      - name: Run tests
        run: cargo test --workspace --all-features --release

      - name: Run Rust examples
        # run examples only on ubuntu for now
        if: matrix.os == 'ubuntu-latest'
        run: |
          cargo metadata --format-version 1 --manifest-path ./examples/Cargo.toml | \
          jq -r '.packages[] | select(.name == "examples") | .targets[].name' | \
          awk '$1 ~ /[0-9].*/' | \
          parallel -k -j 4 --retries 3 --joblog report.log ./target/release/examples/{}
          cat report.log

      - name: Tear down private tangle
        if: matrix.os == 'ubuntu-latest' && always()
        uses: './.github/actions/private-tangle/tear-down'
      
      - name: Stop sccache
        uses: './.github/actions/rust/sccache/stop-sccache'
        with:
          os: ${{matrix.os}}

  build-wasm:
    needs: check-for-run-condition
    if: ${{ needs.check-for-run-condition.outputs.should-run == 'true' }}
    # owner/repository of workflow has to be static, see https://github.community/t/env-variables-in-uses/17466
    uses: iotaledger/identity.rs/.github/workflows/shared-build-wasm.yml@main
    with:
      output-artifact-name: identity-wasm-bindings-build

  test-wasm:
    needs: build-wasm
    if: ${{ needs.check-for-run-condition.outputs.should-run == 'true' }}
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        os: [ ubuntu-latest ]
        include:
          - os: ubuntu-latest

    steps:
      - uses: actions/checkout@v3

      - name: Set up Node.js
        uses: actions/setup-node@v1
        with:
          node-version: 16.x

      - name: Install JS dependencies
        run: npm ci
        working-directory: bindings/wasm

      - name: Download bindings/wasm artifacts
        uses: actions/download-artifact@v2
        with:
          name: identity-wasm-bindings-build
          path: bindings/wasm

      - name: Start private tangle
        uses: './.github/actions/private-tangle/setup'

      - name: Run Wasm examples
        run: npm run test:examples
        working-directory: bindings/wasm

      - name: Tear down private tangle
        if: always()
        uses: './.github/actions/private-tangle/tear-down'