version-guard.yml

name: version-guard

on:
  pull_request:
    types: [opened, synchronize, reopened]
    paths:
      - 'Huginn/**'

jobs:
  check-version:
    runs-on: ubuntu-latest
    name: Validate version + release notes

    steps:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Get base SHA
        run: |
          git fetch origin ${{ github.base_ref }}
          echo "BASE_SHA=$(git rev-parse origin/${{ github.base_ref }})" >> "$GITHUB_ENV"

      - name: Check version + release-notes bumps
        shell: pwsh
        run: |
          $baseSha = $env:BASE_SHA
          $headSha = "${{ github.sha }}"
          Write-Host "Comparing $baseSha...$headSha"

          $changedFiles = git diff --name-only $baseSha $headSha

          $packageFolders = Get-ChildItem -Path "." -Filter "PackageVersion.txt" -Recurse |
            ForEach-Object { $_.DirectoryName }

          $errors = @()

          foreach ($folder in $packageFolders) {
            $relativePath = $folder -replace [regex]::Escape($PWD.Path + [IO.Path]::DirectorySeparatorChar), ""
            $relativePath = $relativePath -replace '\\', '/'

            Write-Host "`nChecking folder: $relativePath"

            $folderChanges = $changedFiles | Where-Object {
              $_ -like "$relativePath/*" -and
              $_ -notlike "*/PackageVersion.txt" -and
              $_ -notlike "*/ReleaseNotes.txt"
            }

            if (-not $folderChanges) {
              Write-Host "  No code changes in this folder, skipping"
              continue
            }

            Write-Host "  Found code changes:"
            $folderChanges | ForEach-Object { Write-Host "    - $_" }

            $versionFile = "$relativePath/PackageVersion.txt"
            $versionChanged = $changedFiles -contains $versionFile

            if (-not $versionChanged) {
              $errors += "Files changed in $relativePath but PackageVersion.txt was not updated"
              continue
            }
            Write-Host "  PackageVersion.txt was updated"

            $newVersion = (Get-Content "$folder/PackageVersion.txt").Trim()
            Write-Host "  New version: $newVersion"

            $releaseNotesFile = Join-Path $folder "ReleaseNotes.txt"
            if (Test-Path $releaseNotesFile) {
              $notesChanged = $changedFiles -contains "$relativePath/ReleaseNotes.txt"
              if (-not $notesChanged) {
                $errors += "PackageVersion.txt changed in $relativePath but ReleaseNotes.txt was not updated"
                continue
              }

              $notes = Get-Content $releaseNotesFile -Raw
              if ($notes -notmatch "v\.$([regex]::Escape($newVersion))") {
                $errors += "Version $newVersion not found in ReleaseNotes.txt for $relativePath"
                continue
              }
              Write-Host "  ReleaseNotes.txt updated with v.$newVersion"
            }
            else {
              Write-Host "  (no ReleaseNotes.txt in this folder)"
            }
          }

          if ($errors.Count -gt 0) {
            Write-Host "`nVERSION GUARD FAILURES:" -ForegroundColor Red
            $errors | ForEach-Object { Write-Host " - $_" -ForegroundColor Red }
            Write-Host "`nWhen you change code in a folder with PackageVersion.txt:"
            Write-Host "  1. Bump PackageVersion.txt"
            Write-Host "  2. Add a 'v.<newVersion>' section at the top of ReleaseNotes.txt"
            exit 1
          }

          Write-Host "`nAll version checks passed."