fsPromises.realpath(path[, options])

仅支持可以转换为 UTF8 字符串的路径。

可选的 options 参数可以是指定编码的字符串,也可以是具有 encoding 属性(指定用于路径的字符编码)的对象。 如果 encoding 设置为 'buffer',则返回的路径将作为 Buffer 对象传入。

在 Linux 上,将 Node.js 与 musl libc 链接时,必须将 procfs 文件系统挂载在 /proc 上,此函数才能起作用。 Glibc 没有此限制。

Determines the actual location of path using the same semantics as the fs.realpath.native() function then resolves the Promise with the resolved path.

Only paths that can be converted to UTF8 strings are supported.

The optional options argument can be a string specifying an encoding, or an object with an encoding property specifying the character encoding to use for the path. If the encoding is set to 'buffer', the path returned will be passed as a Buffer object.

On Linux, when Node.js is linked against musl libc, the procfs file system must be mounted on /proc in order for this function to work. Glibc does not have this restriction.