name: build

on:
    push:
        branches: [ master ]
    pull_request:
        branches: [ master ]

jobs:
    macos:
        runs-on: macos-14
        name: macOS
        strategy:
            matrix:
                swift:
                    -   toolchain:  5.10-RELEASE
                        branch:     swift-5.10-release

        env:
            SWIFT_TOOLCHAIN_DIRECTORY: >-
                /Library/Developer/Toolchains/swift-${{ matrix.swift.toolchain }}.xctoolchain

        steps:
            -   name: Cache swift toolchains
                uses: actions/cache@v2
                with:
                    path: swift-${{ matrix.swift.toolchain }}.pkg
                    key: macos:swift:${{ matrix.swift.toolchain }}

            -   name: Cache status
                id:   cache_status
                uses: andstor/file-existence-action@v1
                with:
                    files: swift-${{ matrix.swift.toolchain }}.pkg

            -   name: Download toolchain
                if: steps.cache_status.outputs.files_exists == 'false'
                run:   "curl https://download.swift.org/\
                        ${{ matrix.swift.branch }}/xcode/\
                        swift-${{ matrix.swift.toolchain }}/\
                        swift-${{ matrix.swift.toolchain }}-osx.pkg \
                        --output swift-${{ matrix.swift.toolchain }}.pkg"

            -   name: Install toolchain
                run: |
                    sudo installer -pkg swift-${{ matrix.swift.toolchain }}.pkg -target /

            -   name: Select toolchain
                run: |
                    echo "TOOLCHAINS=$(plutil -extract CFBundleIdentifier raw \
                        $SWIFT_TOOLCHAIN_DIRECTORY/Info.plist)" >> $GITHUB_ENV

            -   name: Checkout repository
                uses: actions/checkout@v3

            -   name: Run pipeline
                run: .github/pipeline

    linux:
        runs-on: ${{ matrix.os.runner }}
        name: ${{ matrix.os.runner }} (${{ matrix.swift.toolchain }})
        strategy:
            matrix:
                os:
                    -   runner: ubuntu-22.04
                        prefix: ubuntu2204
                        suffix: ubuntu22.04
                swift:
                    -   toolchain:  5.10-RELEASE
                        branch:     swift-5.10-release

        steps:
            -   uses: actions/checkout@v3

            -   name: cache swift toolchains
                uses: actions/cache@v2
                with:
                    path: swift-${{ matrix.swift.toolchain }}.tar.gz
                    key: ${{ matrix.os.runner }}:swift:${{ matrix.swift.toolchain }}

            -   name: cache status
                id:   cache_status
                uses: andstor/file-existence-action@v1
                with:
                    files: swift-${{ matrix.swift.toolchain }}.tar.gz

            -   name: download swift toolchain
                if: steps.cache_status.outputs.files_exists == 'false'
                run:   "curl https://download.swift.org/\
                        ${{ matrix.swift.branch }}/\
                        ${{ matrix.os.prefix }}/\
                        swift-${{ matrix.swift.toolchain }}/\
                        swift-${{ matrix.swift.toolchain }}-${{ matrix.os.suffix }}.tar.gz \
                        --output swift-${{ matrix.swift.toolchain }}.tar.gz"

            -   name: set up swift
                run: |
                    mkdir -p $GITHUB_WORKSPACE/swift-${{ matrix.swift.toolchain }}
                    tar -xzf swift-${{ matrix.swift.toolchain }}.tar.gz -C $GITHUB_WORKSPACE/swift-${{ matrix.swift.toolchain }} --strip 1
                    echo "$GITHUB_WORKSPACE/swift-${{ matrix.swift.toolchain }}/usr/bin" >> $GITHUB_PATH

            -   run: .github/pipeline