Function dryRunDeepnoteProject

packages/cli/src/commands/run.ts:717–756

* Perform a dry run: parse the file and show what would be executed without running. * Also validates that all requirements (inputs, integrations) are met.

(path: string, options: RunOptions)

 * Also validates that all requirements (inputs, integrations) are met.
 */
async function dryRunDeepnoteProject(path: string, options: RunOptions): Promise<void> {
  const { absolutePath, file, isMachineOutput, pythonEnv } = await setupProject(path, options)
  const blockIds = await resolveUpstreamExecutionBlockIds(file, options, pythonEnv)
  const executableBlocks = collectExecutableBlocks(file, { ...options, blockIds })

  const notebookCount = options.notebook ? 1 : file.project.notebooks.length

  if (isMachineOutput) {
    const result: DryRunResult = {
      dryRun: true,
      path: absolutePath,
      totalBlocks: executableBlocks.length,
      blocks: executableBlocks,
    }
    if (options.output === 'toon') {
      outputToon(result)
    } else {
      outputJson(result)
    }
  } else {
    const c = getChalk()
    output(c.bold('\nExecution Plan (dry run)'))
    output(c.dim('─'.repeat(50)))

    if (executableBlocks.length === 0) {
      output(c.yellow('No executable blocks found.'))
    } else {
      for (let i = 0; i < executableBlocks.length; i++) {
        const block = executableBlocks[i]
        output(`${c.cyan(`[${i + 1}/${executableBlocks.length}]`)} ${block.label}`)
        if (notebookCount > 1) {
          output(c.dim(`    Notebook: ${block.notebook}`))
        }
      }
    }

    output(c.dim('─'.repeat(50)))
    output(c.dim(`Total: ${executableBlocks.length} block(s) would be executed`))
  }
}

/**
 * Validate that all required configuration is present before running.