Function copyFile

tools/fs/files.ts:1679–1691

(from: string, to: string, flags = 0)

// the link itself, and it's an error if the link doesn't point to a file).
const wrappedCopyFile = wrapDestructiveFsFunc("copyFile", fs.copyFileSync, [0, 1]);
export function copyFile(from: string, to: string, flags = 0) {
  mkdir_p(pathDirname(pathResolve(to)), 0o755);
  wrappedCopyFile(from, to, flags);
  const stat = statOrNull(from);
  if (stat && stat.isFile()) {
    // Create the file as readable and writable by everyone, and executable by
    // everyone if the original file is executably by owner. (This mode will be
    // modified by umask.) We don't copy the mode *directly* because this function
    // is used by 'meteor create' which is copying from the read-only tools tree
    // into a writable app.
    chmod(to, (stat.mode & 0o100) ? 0o777 : 0o666);
  }
}

const wrappedRename = wrapDestructiveFsFunc("rename", fs.renameSync, [0, 1]);
export const rename = isWindowsLikeFilesystem() ? function (from: string, to: string) {