name: CI
on:
  push:
    branches:
      - master
  pull_request:
  workflow_dispatch:

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  build:
    timeout-minutes: 90
    strategy:
      fail-fast: false
      matrix:
        target:
          - os: linux
            cpu: amd64
          - os: linux
            cpu: i386
          - os: ubuntu-24-gcc-14
            cpu: amd64
          - os: macos
            cpu: amd64
          - os: windows
            cpu: amd64
        branch: [version-1-6, version-2-0]
        include:
          - target:
              os: linux
            builder: ubuntu-22.04
            shell: bash
          - target:
              os: ubuntu-24-gcc-14
            builder: ubuntu-24.04
            shell: bash
          - target:
              os: macos
            builder: macos-13
            shell: bash
          - target:
              os: windows
            builder: windows-2022
            shell: msys2 {0}

    defaults:
      run:
        shell: ${{ matrix.shell }}

    name: '${{ matrix.target.os }}-${{ matrix.target.cpu }} (Nim ${{ matrix.branch }})'
    runs-on: ${{ matrix.builder }}
    continue-on-error: ${{ matrix.branch == 'devel' }}
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          submodules: true

      - name: Setup Nim
        uses: "./.github/actions/install_nim"
        with:
          os: ${{ matrix.target.os }}
          cpu: ${{ matrix.target.cpu }}
          shell: ${{ matrix.shell }}
          nim_branch: ${{ matrix.branch }}

      - name: Setup Go
        uses: actions/setup-go@v2
        with:
          go-version: '~1.15.5'

      - name: Install p2pd
        run: |
          V=1 bash scripts/build_p2pd.sh p2pdCache 124530a3

      - name: Restore deps from cache
        id: deps-cache
        uses: actions/cache@v3
        with:
          path: nimbledeps
          # Using nim.branch as a simple way to differentiate between nimble using the "pkgs" or "pkgs2" directories.
          # The change happened on Nimble v0.14.0.
          key: nimbledeps-${{ matrix.branch }}-${{ hashFiles('.pinned') }} # hashFiles returns a different value on windows

      - name: Install deps
        if: ${{ steps.deps-cache.outputs.cache-hit != 'true' }}
        run: |
          nimble install_pinned

      - name: Use gcc 14
        if : ${{ matrix.target.os == 'ubuntu-24-gcc-14'}}
        run: |
          # Add GCC-14 to alternatives
          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-14 14

          # Set GCC-14 as the default
          sudo update-alternatives --set gcc /usr/bin/gcc-14

      - name: Run tests
        run: |
          nim --version
          nimble --version
          gcc --version
          nimble test

  lint:
    name: "Lint"
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 2  # In PR, has extra merge commit: ^1 = PR, ^2 = base

      - name: Check nph formatting
        # Pin nph to a specific version to avoid sudden style differences.
        # Updating nph version should be accompanied with running the new
        # version on the fluffy directory.
        run: |
          VERSION="v0.5.1"
          ARCHIVE="nph-linux_x64.tar.gz"
          curl -L "https://github.com/arnetheduck/nph/releases/download/${VERSION}/${ARCHIVE}" -o ${ARCHIVE}
          tar -xzf ${ARCHIVE}
          shopt -s extglob  # Enable extended globbing
          ./nph examples libp2p tests tools *.@(nim|nims|nimble)
          git diff --exit-code