//go:build unix || (js && wasm) || wasip1

package fs

import "golang.org/x/sys/unix"

// writable reports whether path is writable on Windows.
//
// Semantics:
//   - for an existing regular file, it tries to open it for writing;
//   - for an existing directory, it tries to create and remove a temp file inside it;
//   - for other file types, it returns false with no error.
func writable(filepath string) (bool, error) {
	return unix.Access(filepath, unix.W_OK) == nil, nil
}