hdf5/.github/actions/setup-jextract/action.yml

name: 'Setup jextract'
description: 'Install jextract for FFM binding generation across all platforms'
inputs:
  java-version:
    description: 'Java version for jextract (24, 25, latest)'
    required: false
    default: '25'

outputs:
  jextract-home:
    description: 'Path to jextract installation'
    value: ${{ steps.setup-jextract.outputs.jextract-home }}
  jextract-version:
    description: 'Version of jextract installed'
    value: ${{ steps.setup-jextract.outputs.jextract-version }}

runs:
  using: 'composite'
  steps:
    - name: Setup jextract (Linux/macOS)
      id: setup-jextract-unix
      if: runner.os != 'Windows'
      shell: bash
      run: |
        echo "Installing jextract for $RUNNER_OS..."

        # Determine platform
        if [[ "$RUNNER_OS" == "macOS" ]]; then
          PLATFORM="macos-x64"
        else
          PLATFORM="linux-x64"
        fi

        # Try different jextract versions (from latest to older)
        # Check https://jdk.java.net/jextract/ for available builds
        JEXTRACT_URLS=(
          "https://download.java.net/java/early_access/jextract/22/6/openjdk-22-jextract+6-47_${PLATFORM}_bin.tar.gz"
          "https://download.java.net/java/early_access/jextract/21/5/openjdk-21-jextract+5-31_${PLATFORM}_bin.tar.gz"
          "https://download.java.net/java/early_access/jextract/20/1/openjdk-20-jextract+1-2_${PLATFORM}_bin.tar.gz"
        )

        mkdir -p $HOME/jextract
        cd $HOME/jextract

        SUCCESS=false
        for URL in "${JEXTRACT_URLS[@]}"; do
          echo "Trying to download from: $URL"
          if curl -L -f -o jextract.tar.gz "$URL" 2>/dev/null; then
            echo "✓ Download successful from $URL"
            tar -xzf jextract.tar.gz --strip-components=1
            rm jextract.tar.gz
            SUCCESS=true
            break
          else
            echo "✗ Failed to download from $URL, trying next..."
          fi
        done

        if [ "$SUCCESS" = false ]; then
          echo "ERROR: Failed to download jextract from any known source"
          echo "Please check https://jdk.java.net/jextract/ for available builds"
          exit 1
        fi

        # Set outputs
        echo "jextract-home=$HOME/jextract" >> $GITHUB_OUTPUT

        # Verify installation
        if $HOME/jextract/bin/jextract --version 2>&1; then
          VERSION=$($HOME/jextract/bin/jextract --version 2>&1 | head -1 || echo "unknown")
          echo "jextract-version=$VERSION" >> $GITHUB_OUTPUT
          echo "✓ jextract installed successfully: $VERSION"
        else
          echo "jextract-version=unknown" >> $GITHUB_OUTPUT
          echo "✓ jextract installed (version check not supported)"
        fi

    - name: Setup jextract (Windows)
      id: setup-jextract-windows
      if: runner.os == 'Windows'
      shell: pwsh
      run: |
        Write-Host "Installing jextract for Windows..."

        # Try multiple jextract versions (latest to older)
        # Windows now uses .tar.gz format
        $JextractUrls = @(
          "https://download.java.net/java/early_access/jextract/22/6/openjdk-22-jextract+6-47_windows-x64_bin.tar.gz",
          "https://download.java.net/java/early_access/jextract/21/5/openjdk-21-jextract+5-31_windows-x64_bin.tar.gz",
          "https://download.java.net/java/early_access/jextract/20/1/openjdk-20-jextract+1-2_windows-x64_bin.tar.gz"
        )

        $JextractHome = "$env:USERPROFILE\jextract"
        New-Item -ItemType Directory -Force -Path $JextractHome | Out-Null

        $Success = $false
        foreach ($Url in $JextractUrls) {
          Write-Host "Trying to download from: $Url"
          $TarPath = "$JextractHome\jextract.tar.gz"

          try {
            Invoke-WebRequest -Uri $Url -OutFile $TarPath -ErrorAction Stop
            Write-Host "✓ Download successful from $Url"

            # Extract using tar (available in Windows 10+)
            $TempExtract = "$JextractHome\temp"
            New-Item -ItemType Directory -Force -Path $TempExtract | Out-Null
            tar -xzf "$TarPath" -C "$TempExtract" 2>&1 | Out-Null

            # Find jextract.bat
            $JextractBat = Get-ChildItem -Path $TempExtract -Filter "jextract.bat" -Recurse -ErrorAction SilentlyContinue | Select-Object -First 1

            if ($JextractBat) {
              Write-Host "Found jextract.bat at: $($JextractBat.FullName)"

              # Move contents to JextractHome
              $JextractRoot = $JextractBat.Directory.Parent.FullName
              Get-ChildItem -Path $JextractRoot | ForEach-Object {
                Move-Item -Path $_.FullName -Destination $JextractHome -Force
              }

              # Clean up
              Remove-Item -Path $TempExtract -Recurse -Force
              Remove-Item -Path $TarPath -Force

              # Verify
              if (Test-Path "$JextractHome\bin\jextract.bat") {
                Write-Host "✓ jextract extracted successfully to $JextractHome"
                $Success = $true
                break
              }
            } else {
              Write-Host "✗ Could not find jextract.bat in extracted files"
              Remove-Item -Path $TempExtract -Recurse -Force -ErrorAction SilentlyContinue
            }
          }
          catch {
            Write-Host "✗ Failed to download or extract from $Url"
            Write-Host "Error: $_"
          }
        }

        if (-not $Success) {
          Write-Host "ERROR: Failed to download jextract from any known source"
          Write-Host "Please check https://jdk.java.net/jextract/ for available builds"
          exit 1
        }

        # Set outputs
        echo "jextract-home=$JextractHome" >> $env:GITHUB_OUTPUT

        # Verify installation
        try {
          $Version = & "$JextractHome\bin\jextract.bat" --version 2>&1 | Select-Object -First 1
          echo "jextract-version=$Version" >> $env:GITHUB_OUTPUT
          Write-Host "✓ jextract installed successfully: $Version"
        } catch {
          echo "jextract-version=unknown" >> $env:GITHUB_OUTPUT
          Write-Host "✓ jextract installed (version check not supported)"
        }

    - name: Set environment variables
      id: setup-jextract
      shell: bash
      run: |
        if [[ "$RUNNER_OS" == "Windows" ]]; then
          JEXTRACT_HOME="${{ steps.setup-jextract-windows.outputs.jextract-home }}"
          JEXTRACT_VERSION="${{ steps.setup-jextract-windows.outputs.jextract-version }}"
        else
          JEXTRACT_HOME="${{ steps.setup-jextract-unix.outputs.jextract-home }}"
          JEXTRACT_VERSION="${{ steps.setup-jextract-unix.outputs.jextract-version }}"
        fi

        echo "JEXTRACT_HOME=$JEXTRACT_HOME" >> $GITHUB_ENV
        echo "jextract-home=$JEXTRACT_HOME" >> $GITHUB_OUTPUT
        echo "jextract-version=$JEXTRACT_VERSION" >> $GITHUB_OUTPUT

        # Add to PATH
        if [[ "$RUNNER_OS" == "Windows" ]]; then
          echo "$JEXTRACT_HOME\bin" >> $GITHUB_PATH
        else
          echo "$JEXTRACT_HOME/bin" >> $GITHUB_PATH
        fi

        echo "✓ jextract setup complete"
        echo "  JEXTRACT_HOME=$JEXTRACT_HOME"
        echo "  Version: $JEXTRACT_VERSION"