Function getFilename

src/diff-parser.ts:22–37

(line: string, linePrefix?: string, extraPrefix?: string)

const baseDiffFilenamePrefixes = ['a/', 'b/', 'i/', 'w/', 'c/', 'o/'];
function getFilename(line: string, linePrefix?: string, extraPrefix?: string): string {
  const prefixes = extraPrefix !== undefined ? [...baseDiffFilenamePrefixes, extraPrefix] : baseDiffFilenamePrefixes;

  const FilenameRegExp = linePrefix
    ? new RegExp(`^${escapeForRegExp(linePrefix)} "?(.+?)"?$`)
    : new RegExp('^"?(.+?)"?$');

  const [, filename = ''] = FilenameRegExp.exec(line) || [];
  const matchingPrefix = prefixes.find(p => filename.indexOf(p) === 0);
  const fnameWithoutPrefix = matchingPrefix ? filename.slice(matchingPrefix.length) : filename;

  // Cleanup timestamps generated by the unified diff (diff command) as specified in
  // https://www.gnu.org/software/diffutils/manual/html_node/Detailed-Unified.html
  // Ie: 2016-10-25 11:37:14.000000000 +0200
  return fnameWithoutPrefix.replace(/\s+\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}(?:\.\d+)? [+-]\d{4}.*$/, '');
}

function getSrcFilename(line: string, srcPrefix?: string): string | undefined {
  return getFilename(line, '---', srcPrefix);