CreateRelease.yml

name: Auto Release on Merge from Develop to Main (Ubuntu)
permissions:
  contents: write

on:
  pull_request:
    types: [closed]
    branches:
      - main

jobs:
  release:
    if: github.event.pull_request.merged == true && github.event.pull_request.base.ref == 'main' && github.event.pull_request.head.ref == 'develop'
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code (full history & tags)
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Set up Git config
        run: |
          git config user.name "github-actions"
          git config user.email "github-actions@github.com"

      - name: Get latest tag
        id: get_tag
        run: |
          git fetch --tags
          latestTag=$(git tag --list 'v*' --sort=-v:refname | head -n 1)
          if [ -z "$latestTag" ]; then
            latestTag="v0.0.0"
          fi
          echo "Latest tag: $latestTag"
          echo "latest_tag=$latestTag" >> $GITHUB_OUTPUT

      - name: Calculate next tag (patch bump)
        id: bump
        run: |
          version="${{ steps.get_tag.outputs.latest_tag }}"
          version=${version#v}
          IFS='.' read -r major minor patch <<< "$version"
          patch=$((patch + 1))
          newTag="v$major.$minor.$patch"
          echo "New tag: $newTag"
          echo "new_tag=$newTag" >> $GITHUB_OUTPUT

      - name: Create and push tag
        run: |
          git tag ${{ steps.bump.outputs.new_tag }}
          git push origin ${{ steps.bump.outputs.new_tag }}

      - name: Generate release notes
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh api "repos/${{ github.repository }}/releases/generate-notes" \
            -f tag_name="${{ steps.bump.outputs.new_tag }}" \
            -f previous_tag_name="${{ steps.get_tag.outputs.latest_tag }}" \
            --jq .body > release-notes.md
          cat release-notes.md

      - name: Copy README into module folder
        shell: pwsh
        run: |
            # PowerShell Gallery renders a module's README.md if it's included in the published
            # package; Publish-Module only packages the PiHoleShell/ folder, so it has to live there.
            Copy-Item -Path README.md -Destination PiHoleShell/README.md -Force

      - name: Zip folder
        shell: pwsh
        run: |
            $modulePath = "PiHoleShell"
            $manifest = Get-ChildItem -Path $modulePath -Filter PiHoleShell.psd1 -Recurse | Select-Object -First 1

            if (-not $manifest) {
              throw "No module manifest (*.psd1) found in $modulePath"
            }

            $version = $env:NEW_TAG -replace '^v', ''
            (Get-Content $manifest.FullName) -replace '0.0.0', $version | Set-Content $manifest.FullName
            Write-Host "Replacing 0.0.0 with $version in $($manifest.FullName)"
            
            mkdir -p output
            zip -r output/release.zip PiHoleShell
        env:
            NEW_TAG: ${{ steps.bump.outputs.new_tag }}

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v1
        with:
          tag_name: ${{ steps.bump.outputs.new_tag }}
          name: "Release ${{ steps.bump.outputs.new_tag }}"
          body_path: release-notes.md
          files: output/release.zip
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Publish Module to PowerShell Gallery
        shell: pwsh
        run: |
            $apiKey = '${{ secrets.POWERSHELLGALLERY }}'
            $modulePath = "PiHoleShell"  # Change to your actual module folder
            $manifest = Get-ChildItem -Path $modulePath -Filter PiHoleShell.psd1 -Recurse | Select-Object -First 1

            if (-not $manifest) {
              throw "No module manifest (*.psd1) found in $modulePath"
            }

            # Surgical replace rather than Update-ModuleManifest, which rewrites and reformats
            # the entire file (drops comments, changes array literal styles, etc.). The source
            # manifest always has this exact static placeholder, since the version/notes bump
            # here is never committed back to the repo.
            $releaseNotes = (Get-Content -Path release-notes.md -Raw).Trim()
            $releaseNotesEscaped = $releaseNotes -replace "'", "''"
            $manifestContent = Get-Content -Path $manifest.FullName -Raw
            $manifestContent = $manifestContent.Replace("'Initial release targeting PowerShell 7+'", "'$releaseNotesEscaped'")
            Set-Content -Path $manifest.FullName -Value $manifestContent -NoNewline

            Write-Host "Publishing module: $($manifest.FullName)"
            Publish-Module -Path $manifest.DirectoryName -NuGetApiKey $apiKey -Verbose