release.yml

name: Release

on:
  push:
    tags:
      - '*'
  workflow_dispatch:

permissions:
  contents: write
  issues: write

jobs:
  release:
    runs-on: windows-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          persist-credentials: true

      - name: Get tag and commit message
        id: tag-info
        shell: pwsh
        run: |
          $tag = ($env:GITHUB_REF -split '/')[ -1 ]
          Write-Host "Tag: $tag"
          git fetch --tags
          $commit = (git rev-list -n 1 $tag).Trim()
          Write-Host "Commit: $commit"
          $rawBody = git show -s --format=%B $commit
          # Strip the first non-blank line (commit summary) and any intervening blank lines,
          # starting notes from the second non-blank line onward.
          $lines = $rawBody -split '(?:\r\n|\n|\r)'
          $nonBlank = @()
          for ($i = 0; $i -lt $lines.Count; $i++) {
            if ($lines[$i].Trim() -ne '') { $nonBlank += $i }
          }
          if ($nonBlank.Count -ge 2) {
            $start = $nonBlank[1]
            $notesLines = $lines[$start..($lines.Count - 1)]
            $body = ($notesLines -join "`n")
          } else {
            # No body content beyond a single-line summary
            $body = ''
          }
          $norm = $tag -replace '^v',''
          # Use a unique delimiter for multiline output to GITHUB_OUTPUT to avoid collisions
          $delim = [guid]::NewGuid().ToString()
          Add-Content -Path $env:GITHUB_OUTPUT -Value "tag=$tag"
          Add-Content -Path $env:GITHUB_OUTPUT -Value "body<<$delim"
          Add-Content -Path $env:GITHUB_OUTPUT -Value $body
          Add-Content -Path $env:GITHUB_OUTPUT -Value $delim
          Add-Content -Path $env:GITHUB_OUTPUT -Value "norm_tag=$norm"

      - name: Create GitHub release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ steps.tag-info.outputs.tag }}
          release_name: ${{ steps.tag-info.outputs.norm_tag }}
          body: ${{ steps.tag-info.outputs.body }}
          draft: false
          prerelease: false

      - name: Update docs/CHANGELOG.html and close milestone
        shell: pwsh
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          $tag = '${{ steps.tag-info.outputs.tag }}'
          $norm = '${{ steps.tag-info.outputs.norm_tag }}'
          git fetch --tags --prune
          $commit = (git rev-list -n 1 $tag).Trim()
          $rawBody = git show -s --format=%B $commit
          # Strip the first non-blank line (commit summary) and any intervening blank lines,
          # starting notes from the second non-blank line onward.
          $lines = $rawBody -split '(?:\r\n|\n|\r)'
          $nonBlank = @()
          for ($i = 0; $i -lt $lines.Count; $i++) {
            if ($lines[$i].Trim() -ne '') { $nonBlank += $i }
          }
          if ($nonBlank.Count -ge 2) {
            $start = $nonBlank[1]
            $notesLines = $lines[$start..($lines.Count - 1)]
            $body = ($notesLines -join "`n")
          } else {
            $body = ''
          }
          $path = 'Prefix/docs/CHANGELOG.html'
          if (-not (Test-Path $path)) { Write-Error "$path not found"; exit 1 }
          $text = Get-Content -Raw -Encoding UTF8 $path
          $regex = [regex]::new('(?s)(<script id="md" type="text/markdown">\s*)(?<md>.*?)(\s*</script>)')
          $match = $regex.Match($text)
          if (-not $match.Success) { Write-Error "Embedded markdown block not found in $path"; exit 1 }
          $prefix = $match.Groups[1].Value
          $md = $match.Groups['md'].Value
          $suffix = $match.Groups[3].Value
          if ($md -match '(?m)^\s*##\s*' + [regex]::Escape($norm) + '\s*$') {
            Write-Host "CHANGELOG already contains $norm; skipping update."
            exit 0
          }
          $sepMatches = [regex]::Matches($md, '^[ \t]*---[ \t]*$', [System.Text.RegularExpressions.RegexOptions]::Multiline)
          if ($sepMatches.Count -ge 2) { $insIndex = $sepMatches[1].Index + $sepMatches[1].Length } elseif ($sepMatches.Count -ge 1) { $insIndex = $sepMatches[0].Index + $sepMatches[0].Length } else { $insIndex = 0 }
          # Insert the commit message body exactly as provided (no added headers or placeholders).
          $sectionBody = $body
          $section = "## $norm`n`n" + $sectionBody + "`n`n---`n`n"
          $new_md = $md.Substring(0, $insIndex) + $section + $md.Substring($insIndex)
          $new_text = $text.Substring(0,$match.Index) + $prefix + $new_md + $suffix + $text.Substring($match.Index + $match.Length)
          Set-Content -Path $path -Value $new_text -Encoding UTF8
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git add $path
          git commit -m "chore(release): update CHANGELOG for $tag" || Write-Host "No changelog changes"
          git remote set-head origin --auto
          $default_branch = (git symbolic-ref refs/remotes/origin/HEAD).Replace('refs/remotes/origin/','')
          git push origin HEAD:$default_branch
          # close matching open milestone (exact title match)
          $repo = $env:GITHUB_REPOSITORY
          $token = $env:GITHUB_TOKEN
          $miles = Invoke-RestMethod -Headers @{ Authorization = "token $token"; 'User-Agent' = 'github-actions' } -Uri "https://api.github.com/repos/$repo/milestones?state=open&per_page=100" -Method Get
          foreach ($m in $miles) {
            if ($m.title -eq $norm) {
              Write-Host "Closing milestone $($m.title) (number $($m.number))"
              Invoke-RestMethod -Headers @{ Authorization = "token $token"; 'User-Agent' = 'github-actions' } -Method Patch -Uri "https://api.github.com/repos/$repo/milestones/$($m.number)" -Body (@{ state = 'closed' } | ConvertTo-Json)
            }
          }