lodestone-fs-publisher crashes at start when documents symlinks to mount point

[mippos]

lodestonehq/lodestone-fs-publisher:v0.1.0 docker image crashes at start.

Documents directory is actually a symlink to a mounted smb path which is very likely behind this problem.

/data/infra/lodestone/data/storage$ ls -al
lrwxrwxrwx ... documents -> /mnt/Releases

fstab: //10.1.2.3/Releases /mnt/Releases cifs credentials=/root/.smbcredentials,noperm,rw 0 0

 __    _____  ____  ____  ___  ____  _____  _  _  ____
(  )  (  _  )(  _ \( ___)/ __)(_  _)(  _  )( \( )( ___)
 )(__  )(_)(  )(_) ))__) \__ \  )(   )(_)(  )  (  )__)
(____)(_____)(____/(____)(___/ (__) (_____)(_)\_)(____)
AnalogJ/lodestone-publisher                  .-0.0.20
time="2021-03-18T06:22:12Z" level=info msg="Attempting to connect" type=fs
time="2021-03-18T06:22:12Z" level=info msg="Watching new directory: /data" type=fs
time="2021-03-18T06:22:12Z" level=info msg="Watching new directory: /data/Benchmarking" type=fs
time="2021-03-18T06:22:12Z" level=info msg="Watching new directory: <removed>" type=fs
time="2021-03-18T06:22:12Z" level=info msg="Connected!" type=fs
time="2021-03-18T06:22:12Z" level=info msg="Watching new directory: <removed>" type=fs
...
time="2021-03-18T06:22:12Z" level=warning msg="Channel closed. Re-running init..." type=fs
panic: runtime error: invalid memory address or nil pointer dereference
        panic: close of nil channel
[signal SIGSEGV: segmentation violation code=0x1 addr=0x28 pc=0x6f0ee6]

goroutine 1 [running]:
github.com/analogj/lodestone-publisher/pkg/notify.(*AmqpNotify).Close(0xc0000bc540, 0x0, 0x0)
        /go/src/github.com/analogj/lodestone-publisher/pkg/notify/amqp.go:260 +0x93
panic(0x74d000, 0x9e3cf0)
        /usr/local/go/src/runtime/panic.go:969 +0x1b9
github.com/analogj/lodestone-publisher/pkg/watch.(*FsWatcher).AddWatchDir(0xc000097090, 0xc000094900, 0x56, 0x0, 0x0, 0x805e40, 0xc000099380, 0x805e40, 0xc000099380)
        /go/src/github.com/analogj/lodestone-publisher/pkg/watch/fs.go:122 +0x26
path/filepath.walk(0xc0001003c0, 0x32, 0x80d5c0, 0xc0001252b0, 0xc0001d3650, 0x0, 0x0)
        /usr/local/go/src/path/filepath/path.go:380 +0x213
path/filepath.walk(0xc0000b2780, 0x2c, 0x80d5c0, 0xc0001251e0, 0xc0001d3650, 0x0, 0x0)
        /usr/local/go/src/path/filepath/path.go:384 +0x2fe
path/filepath.walk(0xc0000b26c0, 0x28, 0x80d5c0, 0xc000125110, 0xc0001d3650, 0x0, 0x0)
        /usr/local/go/src/path/filepath/path.go:384 +0x2fe
path/filepath.walk(0xc0000b2180, 0x21, 0x80d5c0, 0xc00009ba00, 0xc0001d3650, 0x0, 0x0)
        /usr/local/go/src/path/filepath/path.go:384 +0x2fe
path/filepath.walk(0xc0000b8320, 0x15, 0x80d5c0, 0xc00009b930, 0xc0001d3650, 0x0, 0x0)
        /usr/local/go/src/path/filepath/path.go:384 +0x2fe
path/filepath.walk(0xc0000b8260, 0x12, 0x80d5c0, 0xc00009b860, 0xc0001d3650, 0x0, 0x0)
        /usr/local/go/src/path/filepath/path.go:384 +0x2fe
path/filepath.walk(0x7fffd9b2df68, 0x5, 0x80d5c0, 0xc00009b5f0, 0xc0001d3650, 0x0, 0xc0000ceb40)
        /usr/local/go/src/path/filepath/path.go:384 +0x2fe
path/filepath.Walk(0x7fffd9b2df68, 0x5, 0xc000093650, 0x3, 0xc0000cebc8)
        /usr/local/go/src/path/filepath/path.go:406 +0x105
github.com/analogj/lodestone-publisher/pkg/watch.(*FsWatcher).Start(0xc000097090, 0xc0000ccc40, 0x80a460, 0xc0000bc540, 0xc000099080)
        /go/src/github.com/analogj/lodestone-publisher/pkg/watch/fs.go:29 +0x172
main.main.func2(0xc0000da780, 0x0, 0x0)
        /go/src/github.com/analogj/lodestone-publisher/cmd/fs-publisher/fs-publisher.go:80 +0x59c
github.com/analogj/lodestone-publisher/vendor/github.com/urfave/cli.HandleAction(0x73ac20, 0x7b89d0, 0xc0000da780, 0xc0000bc400, 0x0)
        /go/src/github.com/analogj/lodestone-publisher/vendor/github.com/urfave/cli/app.go:485 +0x82
github.com/analogj/lodestone-publisher/vendor/github.com/urfave/cli.Command.Run(0x79f442, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7ab831, 0x26, 0x0, ...)
        /go/src/github.com/analogj/lodestone-publisher/vendor/github.com/urfave/cli/command.go:193 +0x976
github.com/analogj/lodestone-publisher/vendor/github.com/urfave/cli.(*App).Run(0xc0000a4ea0, 0xc0000c0000, 0x5, 0x5, 0x0, 0x0)
        /go/src/github.com/analogj/lodestone-publisher/vendor/github.com/urfave/cli/app.go:250 +0x848
main.main()
        /go/src/github.com/analogj/lodestone-publisher/cmd/fs-publisher/fs-publisher.go:123 +0x4d7