go stat_openfile 源码
golang stat_openfile 代码
文件路径：/src/cmd/go/internal/modload/stat_openfile.go
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (js && wasm) || plan9
// On plan9, per http://9p.io/magic/man2html/2/access: “Since file permissions
// are checked by the server and group information is not known to the client,
// access must open the file to check permissions.”
//
// js,wasm is similar, in that it does not define syscall.Access.
package modload
import (
"io/fs"
"os"
)
// hasWritePerm reports whether the current user has permission to write to the
// file with the given info.
func hasWritePerm(path string, _ fs.FileInfo) bool {
if f, err := os.OpenFile(path, os.O_WRONLY, 0); err == nil {
f.Close()
return true
}
return false
}
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