# See https://github.com/renovatebot/renovate/discussions/42965 and related issues in the past
name: 'Check npm packument size'

on:
  # run daily
  schedule:
    - cron: '0 6 * * *'

  # allow manual trigger
  workflow_dispatch: {}

permissions: {}

jobs:
  check-npm-packument-size:
    runs-on: ubuntu-latest
    if: github.repository == 'renovatebot/renovate'

    steps:
      - name: Check npm packument size
        id: check
        env:
          PACKAGE_NAME: renovate
          # npm rejects publishes once the packument exceeds 100 MB
          WARNING_THRESHOLD_MB: 85
          CRITICAL_THRESHOLD_MB: 90
        run: |
          set -euo pipefail

          packument_file="$(mktemp)"
          curl -fsS -o "$packument_file" "https://registry.npmjs.org/$PACKAGE_NAME"

          size_bytes="$(wc -c < "$packument_file")"
          size_mb="$(awk -v bytes="$size_bytes" 'BEGIN { printf "%.2f", bytes / 1024 / 1024 }')"
          version_count="$(jq '.versions | length' "$packument_file")"
          rm -f "$packument_file"

          status="$(awk -v size="$size_mb" -v warn="$WARNING_THRESHOLD_MB" -v crit="$CRITICAL_THRESHOLD_MB" \
            'BEGIN { if (size >= crit) print "critical"; else if (size >= warn) print "warning"; else print "ok" }')"

          echo "::notice title=npm packument size::npm packument size for '$PACKAGE_NAME': ${size_mb} MB across ${version_count} versions (status: $status)"

          {
            echo "size-mb=$size_mb"
            echo "version-count=$version_count"
            echo "status=$status"
          } >> "$GITHUB_OUTPUT"

          {
            echo "### npm packument size"
            echo "\`$PACKAGE_NAME\` packument is **${size_mb} MB** across **${version_count} versions** (status: \`$status\`, warning: ${WARNING_THRESHOLD_MB} MB, critical: ${CRITICAL_THRESHOLD_MB} MB, npm hard limit: 100 MB)."
          } >> "$GITHUB_STEP_SUMMARY"

      - name: Post warning to Slack
        if: steps.check.outputs.status == 'warning'
        uses: slackapi/slack-github-action@dcb1066f776dd043e64d0e8ba94ca15cc7e1875d # v4.0.0
        with:
          webhook: ${{ secrets.RENOVATEBOT_SLACK_WEBHOOK_MAIN_FAILURES }}
          webhook-type: incoming-webhook
          payload: |
            text: ":warning: *npm packument for `renovate` is getting large*: ${{ steps.check.outputs.size-mb }} MB across ${{ steps.check.outputs.version-count }} versions. Warning threshold is 85 MB, npm rejects publishes at 100 MB.\nhttps://registry.npmjs.org/renovate"
            blocks:
              - type: "section"
                text:
                  type: "mrkdwn"
                  text: ":warning: *npm packument for `renovate` is getting large*: ${{ steps.check.outputs.size-mb }} MB across ${{ steps.check.outputs.version-count }} versions. Warning threshold is 85 MB, npm rejects publishes at 100 MB.\nhttps://registry.npmjs.org/renovate"

      - name: Post critical warning to Slack
        if: steps.check.outputs.status == 'critical'
        uses: slackapi/slack-github-action@dcb1066f776dd043e64d0e8ba94ca15cc7e1875d # v4.0.0
        with:
          webhook: ${{ secrets.RENOVATEBOT_SLACK_WEBHOOK_MAIN_FAILURES }}
          webhook-type: incoming-webhook
          payload: |
            text: ":rotating_light: *npm packument for `renovate` is close to the 100 MB publish limit*: ${{ steps.check.outputs.size-mb }} MB across ${{ steps.check.outputs.version-count }} versions. Publishing will start failing soon - action needed.\nhttps://registry.npmjs.org/renovate"
            blocks:
              - type: "section"
                text:
                  type: "mrkdwn"
                  text: ":rotating_light: *npm packument for `renovate` is close to the 100 MB publish limit*: ${{ steps.check.outputs.size-mb }} MB across ${{ steps.check.outputs.version-count }} versions. Publishing will start failing soon - action needed.\nhttps://registry.npmjs.org/renovate"

      - name: Fail job if size is critical
        if: steps.check.outputs.status == 'critical'
        run: exit 50