This commit introduces a Darwin-specific template for NFS exports. This is almost identical to the standard BSD template except it puts each NFS export on its own line.
This resolves NFS issues discovered in macOS Catalina.
StringBlockEditor already adds the necessary newlines. That extra
newline was making /etc/exports longer and longer, full of empty lines,
because StringBlockEditor doesn't know about it and does not remove it.
Check for modinfo in /sbin if it doesn't appear on the PATH.
If it's not found on the PATH or in /sbin, the command will default back to modinfo so the user sees the error message about adding it to their PATH.
For bsd the resolve_host_path capability is a no-op. For darwin
hosts, if firmlinks are defined on the system, paths will be properly
resolved to real path.
Using the resolve_host_path capability allows hosts to modify the
shared folder directory while keeping the logic contained within
the specific host implementation.
On OS X 10.15, / is read-only and paths inside of /Users (and elsewhere)
are mounted via a "firmlink" (which is a new invention in APFS). These
must be resolved to their full path to be shareable via NFS.
/Users/johnsmith/mycode => /System/Volumes/Data/Users/johnsmith/mycode
We check to see if a path is mounted here with `df`, and prepend it.
Firmlinks are only createable by the OS and this wasn't supposed to be
visible to applications anyway:
https://developer.apple.com/videos/play/wwdc2019/710/?time=481
- nfs.service got recently removed in openSUSE Tumbleweed and calling service
restart nfs errors out on Tumbleweed. nfs.service has been an alias to
nfs-client.target for a very long time and can thus be safely substituted.
- all actively supported versions of openSUSE & SLE are using systemd now
=> no reason not to use systemctl
Prior to this commit, the BSD options for the /etc/exports file was not
properly set up in the correct order for a given entry. It was however
fixed for FreeBSD, but never for the original exports template. This
commit fixes that by unifying the BSD and FreeBSD templates.
