# TRIGGER: Runs on any push to binaries-linux-x64 or binaries branches.
# ACTION: Builds, unit-tests and saves linux x64 static binaries with cabal and the ghc version below,
# in an Alpine linux container which provides the statically-linkable musl.

name: binaries-linux-x64
on:
  push:
    branches: [ binaries-linux-x64, binaries ]
  workflow_dispatch:
jobs:
  build:
    runs-on: ubuntu-latest
    container: alpine:latest
    steps:

    - name: Check out
      uses: actions/checkout@v4
      # have to fetch everything for git describe for --version
      with:
        fetch-depth: 0  

    - name: Install general tools with system package manager
      run: |
        apk --no-cache add gmp-dev gmp-static libffi-dev zlib-dev zlib-static ncurses-dev ncurses-static binutils-gold curl gcc g++ git make xz tar perl

    # things to be cached/restored (needs tar)

    - name: Cache - ~/.ghcup
      id:   ghcup
      uses: actions/cache@v4
      with:
        path: ~/.ghcup
        key: ${{ runner.os }}-ghcup-${{ hashFiles('**.yaml') }}
        restore-keys: |
             ${{ runner.os }}-ghcup

    # XXX Warning: Path Validation Error: Path(s) specified in the action for caching do(es) not exist, hence no cache is being saved.
    - name: Cache - ~/.cabal
      id:   cabal
      uses: actions/cache@v4
      with:
        path: ~/.cabal
        key: ${{ runner.os }}-cabal-${{ hashFiles('**.yaml') }}
        restore-keys: |
             ${{ runner.os }}-cabal

    # actions:

    # - name: Check tool versions
    #   run: |
    #     which ghcup; ghcup --version
    #     which stack; stack --version
    #     which cabal; cabal --version
    #     which ghc; ghc --version
    # no preinstalled tools because using alpine container

    # - name: Install haskell ghcup
    #   uses: haskell/ghcup-setup@v1

    - name: Add .ghcup/bin to PATH
      run: |
        echo "$HOME/.ghcup/bin/" >> $GITHUB_PATH

    - name: Install haskell tools if needed
      run: |
        if [[ ! -x ~/.ghcup/bin/ghcup ]];      then mkdir -p ~/.ghcup/bin && curl https://downloads.haskell.org/~ghcup/x86_64-linux-ghcup > ~/.ghcup/bin/ghcup && chmod +x ~/.ghcup/bin/ghcup; fi; printf "ghcup: "; ghcup --version
        if [[ ! -x ~/.ghcup/bin/ghc-9.12.2 ]]; then ghcup install ghc 9.12.2     && ghcup set ghc 9.12.2;     fi; printf "ghc: ";   ghc   --version
        if [[ ! -x ~/.ghcup/bin/cabal ]];      then ghcup install cabal 3.14.2.0 && ghcup set cabal 3.14.2.0; fi; printf "cabal: "; cabal --version

    - name: Update cabal package index
      run: |
        cabal update

    - name: Build with cabal
      run: |
        cabal build --enable-executable-static --ghc-options=-Werror hledger     || (echo "ERROR: building hledger failed"; false)
        cabal build --enable-executable-static --ghc-options=-Werror hledger-ui  || (echo "ERROR: building hledger-ui failed"; false)
        cabal build --enable-executable-static --ghc-options=-Werror hledger-web || (echo "ERROR: building hledger-web failed"; false)

    - name: Gather binaries
      run: |
        mkdir tmp
        cp dist-newstyle/build/x86_64-linux/ghc-*/hledger-*/x/hledger/build/hledger/hledger tmp
        cp dist-newstyle/build/x86_64-linux/ghc-*/hledger-ui-*/x/hledger-ui/build/hledger-ui/hledger-ui tmp
        cp dist-newstyle/build/x86_64-linux/ghc-*/hledger-web-*/x/hledger-web/build/hledger-web/hledger-web tmp
        cp hledger/embeddedfiles/*.1 tmp
        cp hledger/embeddedfiles/*.info tmp
        cp hledger/shell-completion/hledger-completion.bash tmp
        strip tmp/hledger
        strip tmp/hledger-ui
        strip tmp/hledger-web
        cd tmp
        tar cvf hledger-linux-x64.tar hledger hledger-ui hledger-web *.1 *.info hledger-completion.bash
        ldd hledger || true
        ldd hledger-ui || true
        ldd hledger-web || true
        # file hledger
        # file hledger-ui
        # file hledger-web
        ./hledger --version
        ./hledger-ui --version
        ./hledger-web --version

    # upload-artifact loses execute permissions, so we tar the binaries to preserve them.
    # github UI always zips artifacts when they are downloaded, so we don't bother compressing the tar.
    # https://github.com/actions/upload-artifact?tab=readme-ov-file#limitations
    # In release workflows, we repack these using the platform's native compression scheme.
    - name: Upload binaries
      uses: actions/upload-artifact@v4
      with:
        name: hledger-linux-x64
        path: tmp/hledger-linux-x64.tar