Function computeBlockDiffs

packages/cli/src/commands/diff.ts:214–281

* Compare blocks between two notebooks.

(blocks1: DeepnoteBlock[], blocks2: DeepnoteBlock[], options: DiffOptions)

 * Compare blocks between two notebooks.
 */
function computeBlockDiffs(blocks1: DeepnoteBlock[], blocks2: DeepnoteBlock[], options: DiffOptions): BlockDiff[] {
  const blocksMap1 = new Map(blocks1.map(b => [b.id, b]))
  const blocksMap2 = new Map(blocks2.map(b => [b.id, b]))

  const blockDiffs: BlockDiff[] = []

  // Find removed and modified blocks
  for (const [id, block1] of blocksMap1) {
    const block2 = blocksMap2.get(id)
    if (!block2) {
      blockDiffs.push({
        id,
        type: block1.type,
        status: 'removed',
        ...(options.content && {
          contentDiff: {
            before: getBlockContent(block1),
            after: undefined,
          },
        }),
      })
    } else {
      const content1 = getBlockContent(block1)
      const content2 = getBlockContent(block2)
      const typeChanged = block1.type !== block2.type
      const contentChanged = content1 !== content2

      if (typeChanged || contentChanged) {
        blockDiffs.push({
          id,
          type: block2.type,
          status: 'modified',
          ...(options.content && {
            contentDiff: {
              before: content1,
              after: content2,
            },
          }),
        })
      } else {
        blockDiffs.push({
          id,
          type: block2.type,
          status: 'unchanged',
        })
      }
    }
  }

  // Find added blocks
  for (const [id, block2] of blocksMap2) {
    if (!blocksMap1.has(id)) {
      blockDiffs.push({
        id,
        type: block2.type,
        status: 'added',
        ...(options.content && {
          contentDiff: {