英文:
Difference between windows symbolic links and directories
问题
我在使用Go时遇到了一个问题，无法区分Windows符号链接和目录。
我已经搜索过了，但只找到了这个链接：
https://github.com/golang/go/issues/3498#issuecomment-142810957
不幸的是，这个问题已经关闭，并且没有人在处理。
所以我的问题是，有没有任何解决方法？我尝试使用symlinks列出路径，但返回的结果与空目录相同。
在Python中，我可以这样做：
def test(dir):
try:
os.chdir(dir)
except Exception as e:
if "[Error 2]" in str(e):
return False
else:
return True
有没有任何bash命令可以从Go中调用来检测它？
我已经没有更多的想法了 
英文:
I run into a problem with Go when trying to tell difference between windows symbolic links and directories.
I've googled and all I could find was this:
https://github.com/golang/go/issues/3498#issuecomment-142810957
Which is unfortunately closed and not being worked on.
So my question is, is there any workaround? I tried to listdir the path with the symlinks but it is returning the same that it would return on an empty directory.
With python I was able to do something like this:
def test(dir):
try:
os.chdir(dir)
except Exception as e:
if "[Error 2]" in str(e):
return False
else:
return True
Is there any bash command I could use to call from go to detect it?
I'm running out of ideas
答案1
得分: 3
我只看到一个测试（我刚刚在Windows上使用go 1.5.1进行了测试），在os/os_test.go中：
fromstat, err = Lstat(from)
if err != nil {
t.Fatalf("lstat %q failed: %v", from, err)
}
if fromstat.Mode()&ModeSymlink == 0 {
t.Fatalf("symlink %q, %q did not create symlink", to, from)
}
它使用了os/#Lstat：
> Lstat返回描述指定文件的FileInfo。
如果文件是符号链接，则返回的FileInfo描述符号链接。Lstat不会尝试跟踪链接。
如果出现错误，它将是*PathError类型的。
您还可以获取同一文件夹的os.Stat()，然后调用os.Samefile()（如此测试中所示）：
if !SameFile(tostat, fromstat) {
t.Errorf("symlink %q, %q did not create symlink", to, from)
}
英文:
The only test I see (and I just tested it with go 1.5.1 on Windows) is in os/os_test.go:
fromstat, err = Lstat(from)
if err != nil {
t.Fatalf("lstat %q failed: %v", from, err)
}
if fromstat.Mode()&ModeSymlink == 0 {
t.Fatalf("symlink %q, %q did not create symlink", to, from)
}
It uses os/#Lstat:
> Lstat returns a FileInfo describing the named file.
If the file is a symbolic link, the returned FileInfo describes the symbolic link. Lstat makes no attempt to follow the link.
If there is an error, it will be of type *PathError.
You can also get os.Stat() of the same folder, and then call os.Samefile() (as in this test):
if !SameFile(tostat, fromstat) {
t.Errorf("symlink %q, %q did not create symlink", to, from)
}
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论