Function findMaxLineNumber

src/ui/diff/codeColumns.ts:46–58

(file: DiffFile)

/** Find the widest line-number gutter needed for one file. */
export function findMaxLineNumber(file: DiffFile) {
  let highest = 0;

  for (const hunk of file.metadata.hunks) {
    highest = Math.max(
      highest,
      hunk.deletionStart + hunk.deletionCount,
      hunk.additionStart + hunk.additionCount,
    );
  }

  return Math.max(highest, 1);
}

/** Find the widest line-number gutter needed for an already-expanded row stream. */
export function findMaxLineNumberInRows(rows: Iterable<DiffRow>, fallback = 1) {