Function getChangedFilesSince

packages/git/src/index.ts:187–218

({
  cwd,
  ref,
  fullPath = false,
}: {
  cwd: string;
  ref: string;
  fullPath?: boolean;
})

}

export async function getChangedFilesSince({
  cwd,
  ref,
  fullPath = false,
}: {
  cwd: string;
  ref: string;
  fullPath?: boolean;
}): Promise<Array<string>> {
  const divergedAt = await getDivergedCommit(cwd, ref);
  // Now we can find which files we added
  const cmd = await spawn(
    "git",
    ["diff", "--name-only", "--no-relative", divergedAt],
    { cwd }
  );
  if (cmd.code !== 0) {
    throw new Error(
      `Failed to diff against ${divergedAt}. Is ${divergedAt} a valid ref?`
    );
  }

  const files = cmd.stdout
    .toString()
    .trim()
    .split("\n")
    .filter((a) => a);
  if (!fullPath) return files;

  const repoRoot = await getRepoRoot({ cwd });
  return files.map((file) => path.resolve(repoRoot, file));
}

// below are less generic functions that we use in combination with other things we are doing
export async function getChangedChangesetFilesSinceRef({