Function getPreviousIds

apps/sim/scripts/check-block-registry.ts:96–145

()

  | { kind: 'ok'; map: IdMap }

function getPreviousIds(): PreviousIdsResult {
  const registryPath = 'apps/sim/blocks/registry.ts'
  const blocksDir = 'apps/sim/blocks/blocks'

  let hasChanges = false
  try {
    const diff = execSync(
      `git diff --name-only ${baseRef} HEAD -- ${registryPath} ${blocksDir}`,
      gitOpts
    ).trim()
    hasChanges = diff.length > 0
  } catch {
    return { kind: 'skip', reason: 'Could not diff against base ref' }
  }

  if (!hasChanges) {
    return { kind: 'noop' }
  }

  const map: IdMap = {}

  try {
    const blockFiles = execSync(`git ls-tree -r --name-only ${baseRef} -- ${blocksDir}`, gitOpts)
      .trim()
      .split('\n')
      .filter((f) => f.endsWith('.ts') && !f.endsWith('.test.ts'))

    for (const filePath of blockFiles) {
      let content: string
      try {
        content = execSync(`git show ${baseRef}:${filePath}`, gitOpts)
      } catch {
        continue
      }

      const typeMatch = content.match(/BlockConfig\s*=\s*\{[\s\S]*?type:\s*['"]([^'"]+)['"]/)
      if (!typeMatch) continue
      const blockType = typeMatch[1]

      const ids = extractSubBlockIds(content)
      if (ids.length === 0) continue

      map[blockType] = new Set(ids)
    }
  } catch (err) {
    return { kind: 'skip', reason: `Could not read previous block files from ${baseRef}: ${err}` }
  }

  return { kind: 'ok', map }
}

type CheckResult =
  | { kind: 'pass'; message: string }