Function applyPatches

src/patch/apply.ts:340–366

(uniDiff: string | StructuredPatch[], options: ApplyPatchesOptions)

 * Once all patches have been applied or an error occurs, the `options.complete(err)` callback is made.
 */
export function applyPatches(uniDiff: string | StructuredPatch[], options: ApplyPatchesOptions): void {
  const spDiff: StructuredPatch[] = typeof uniDiff === 'string' ? parsePatch(uniDiff) : uniDiff;

  let currentIndex = 0;
  function processIndex(): void {
    const index = spDiff[currentIndex++];
    if (!index) {
      return options.complete();
    }

    options.loadFile(index, function(err: any, data: string) {
      if (err) {
        return options.complete(err);
      }

      const updatedContent = applyPatch(data, index, options);
      options.patched(index, updatedContent, function(err: any) {
        if (err) {
          return options.complete(err);
        }

        processIndex();
      });
    });
  }
  processIndex();
}