Function serializePercentFormat

packages/convert/src/deepnote-to-percent.ts:51–100

(notebook: PercentNotebook)

 * @returns The serialized percent format string
 */
export function serializePercentFormat(notebook: PercentNotebook): string {
  const lines: string[] = []

  for (const cell of notebook.cells) {
    // Build the cell marker
    let marker = '# %%'

    if (cell.cellType === 'markdown') {
      marker += ' [markdown]'
    } else if (cell.cellType === 'raw') {
      marker += ' [raw]'
    }

    if (cell.title) {
      marker += ` ${cell.title}`
    }

    if (cell.tags && cell.tags.length > 0) {
      const tagsStr = cell.tags.map(t => JSON.stringify(t)).join(', ')
      marker += ` tags=[${tagsStr}]`
    }

    lines.push(marker)

    // Add cell content
    if (cell.cellType === 'markdown') {
      // Prefix each line with '# '
      const contentLines = cell.content.split('\n')
      for (const contentLine of contentLines) {
        if (contentLine === '') {
          lines.push('#')
        } else {
          lines.push(`# ${contentLine}`)
        }
      }
    } else {
      lines.push(cell.content)
    }

    // Add empty line between cells for readability
    lines.push('')
  }

  // Remove trailing empty line if present
  while (lines.length > 0 && lines[lines.length - 1] === '') {
    lines.pop()
  }

  return `${lines.join('\n')}\n`
}

/**
 * Converts a Deepnote project file into separate percent format (.py) files.