Incorrect repoSize when using symbolic links

[bitspill]

Version information:

go-ipfs version: 0.4.10-
Repo version: 5
System version: amd64/linux
Golang version: go1.8.3

Type:

Bug

Severity:

Low

Description:

If the .ipfs directory is a symbolic link the repoSize as returned by ipfs repo stat or ipfs stats repo will always return 9 bytes regardless of actual data stored

With symlink

~$ ls -al
lrwxrwxrwx   1 ipfs ipfs        9 Jun 22  2016 .ipfs -> ipfs_data
drwxrwxr-x   5 ipfs ipfs     4096 Jul 12 01:25 ipfs_data

~$ ipfs repo stat
NumObjects: 204114
RepoSize:   9
StorageMax: 800000000000
RepoPath:   /home/ipfs/.ipfs
Version:    fs-repo@5

Without symlink

~$ ipfs repo stat
NumObjects: 204114
RepoSize:   49450734482
StorageMax: 800000000000
RepoPath:   /home/ipfs/.ipfs
Version:    fs-repo@5

[bitspill]

Did some looking and found that filepath.Walk does not follow symbolic links

[1] https://github.com/ipfs/go-ipfs/blob/master/repo/fsrepo/fsrepo.go#L591
[2] https://golang.org/pkg/path/filepath/#Walk

[leerspace]

This was fixed in #4305