Function checkPaths

lib/internal/fs/cp/cp.js:73–120

(src, dest, opts)

}

async function checkPaths(src, dest, opts) {
  if (opts.filter && !(await opts.filter(src, dest))) {
    return { __proto__: null, skipped: true };
  }
  const { 0: srcStat, 1: destStat } = await getStats(src, dest, opts);
  if (destStat) {
    if (areIdentical(srcStat, destStat)) {
      throw new ERR_FS_CP_EINVAL({
        message: 'src and dest cannot be the same',
        path: dest,
        syscall: 'cp',
        errno: EINVAL,
        code: 'EINVAL',
      });
    }
    if (srcStat.isDirectory() && !destStat.isDirectory()) {
      throw new ERR_FS_CP_DIR_TO_NON_DIR({
        message: `cannot overwrite non-directory ${dest} ` +
            `with directory ${src}`,
        path: dest,
        syscall: 'cp',
        errno: EISDIR,
        code: 'EISDIR',
      });
    }
    if (!srcStat.isDirectory() && destStat.isDirectory()) {
      throw new ERR_FS_CP_NON_DIR_TO_DIR({
        message: `cannot overwrite directory ${dest} ` +
            `with non-directory ${src}`,
        path: dest,
        syscall: 'cp',
        errno: ENOTDIR,
        code: 'ENOTDIR',
      });
    }
  }

  if (srcStat.isDirectory() && isSrcSubdir(src, dest)) {
    throw new ERR_FS_CP_EINVAL({
      message: `cannot copy ${src} to a subdirectory of self ${dest}`,
      path: dest,
      syscall: 'cp',
      errno: EINVAL,
      code: 'EINVAL',
    });
  }
  return { __proto__: null, srcStat, destStat, skipped: false };
}

function areIdentical(srcStat, destStat) {
  return destStat.ino && destStat.dev && destStat.ino === srcStat.ino &&