dotnet__skills/.github/workflows/weekly-version-sync.yml

# Weekly backstop. Computes every plugin's authoritative version on `main` with
# NBGV and, for any plugin whose content changed without a matching version bump,
# opens ONE pull request that stamps the correct versions and explains why.
#
# This is the safety net that makes per-PR bumping optional: anything a
# contributor or the /version-bump command missed is reconciled here. Running on
# main (post-merge) is the single source of truth, so the computed heights can
# never collide across PRs.
name: weekly-version-sync

on:
  schedule:
    - cron: '0 9 * * 1' # Mondays 09:00 UTC
  workflow_dispatch:

concurrency:
  group: weekly-version-sync
  cancel-in-progress: false

permissions:
  contents: write
  pull-requests: write

jobs:
  sync:
    # Never run on forks (avoids burning a fork owner's Actions minutes).
    if: github.repository == 'dotnet/skills'
    runs-on: ubuntu-latest
    env:
      SYNC_BRANCH: bot/weekly-version-sync
    steps:
      - name: Checkout main
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v6
        with:
          fetch-depth: 0
          persist-credentials: true

      - name: Setup .NET SDK
        uses: actions/setup-dotnet@a98b56852c35b8e3190ac28c8c2271da59106c68 # v5
        with:
          # nbgv targets net8.0; global.json pins an SDK that ships only a preview runtime, onto
          # which a release-targeted tool will not roll forward. Install an 8.0.x runtime so nbgv
          # has a runtime to execute on, alongside the global.json SDK.
          dotnet-version: '8.0.x'
          global-json-file: global.json

      - name: Restore tools
        run: dotnet tool restore --configfile eng/version/nuget.config

      - name: Compute and stamp versions
        id: stamp
        shell: pwsh
        run: |
          # Authoritative compute on main HEAD; write drifted plugins in place.
          $report = & "$PWD/eng/version/Sync-PluginVersions.ps1" -OnlyChanged -Write | ConvertFrom-Json

          if (-not $report -or $report.Count -eq 0) {
            "has_changes=false" >> $env:GITHUB_OUTPUT
            "No plugin versions drifted — nothing to sync." >> $env:GITHUB_STEP_SUMMARY
            exit 0
          }

          # Build the PR body, explaining each bump with the commits that caused it.
          $sections = foreach ($r in $report) {
            $name = $r.plugin
            $lastStamp = git log -1 --format='%H' -- "plugins/$name/plugin.json"
            $range = if ($lastStamp) { "$lastStamp..HEAD" } else { 'HEAD' }
            $commits = git log --format='- %h %s' $range -- "plugins/$name" `
              ":(exclude)plugins/$name/plugin.json" `
              ":(exclude)plugins/$name/.codex-plugin/plugin.json" `
              ":(exclude)plugins/$name/.claude-plugin/plugin.json"
            $why = if ($commits) { ($commits -join "`n") } else { '- (no attributable commits found)' }
            @(
              "### ``$name``: $($r.current) → $($r.computed)"
              ""
              "Changes since the last version bump:"
              ""
              $why
              ""
            ) -join "`n"
          }

          $body = @(
            "Automated weekly version sync. The following plugins changed since their"
            "last version bump; this PR stamps the NBGV-computed version into their"
            "``plugin.json`` and ``.codex-plugin/plugin.json`` (and ``.claude-plugin/plugin.json``"
            "where a plugin has one)."
            ""
            "Patch numbers are derived from git history — review the reasons below, then merge."
            ""
            ($sections -join "`n")
          ) -join "`n"

          Set-Content -Path pr-body.md -Value $body
          "has_changes=true" >> $env:GITHUB_OUTPUT
          $body >> $env:GITHUB_STEP_SUMMARY

      - name: Open or update sync PR
        if: steps.stamp.outputs.has_changes == 'true'
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git switch -c "$SYNC_BRANCH"
          git add plugins/*/plugin.json plugins/*/.codex-plugin/plugin.json
          # The optional Claude manifest may match zero plugins in the future; keep this add
          # non-fatal so an empty glob can't fail the step.
          git add plugins/*/.claude-plugin/plugin.json 2>/dev/null || true
          git commit -m "Weekly plugin version sync"
          git push --force origin "$SYNC_BRANCH"

          EXISTING=$(gh pr list --head "$SYNC_BRANCH" --state open --json number --jq '.[0].number // empty')
          if [[ -n "$EXISTING" ]]; then
            gh pr edit "$EXISTING" --body-file pr-body.md
            echo "Updated existing PR #$EXISTING"
          else
            gh pr create \
              --base main \
              --head "$SYNC_BRANCH" \
              --title "Weekly plugin version sync" \
              --body-file pr-body.md
          fi