Mailinglist Archive: opensuse-packaging (134 mails)

[Andreas Jaeger <aj@xxxxxxxx>]

On Friday, July 08, 2011 19:31:07 Christian Boltz wrote:
> Hello,
>
> on Freitag, 8. Juli 2011, Robert Schweikert wrote:
> > OK, did not know that and was not part of the original message.
> > Well,  using numbers works, still leaves one parsing all files for a
> > specific service and then figuring out which one is processed last
> > and wins. Allowing only one file or enable/disable pair of files
> > makes that task a lot easier.
>
> There is another way that can even avoid reading file contents ;-)
>
> I propose to use two subdirectories "enabled" and "disabled", and then
> just put empty files there, with filename = service name.

SystemD has already the enabled directory.

The proposal we're discussing here is the proposal on how to define which 
service to install at a new installation.

> In other words: "touch disabled/cupsd.service" would mean cupsd is
> disabled by default, and "touch enabled/sshd.service" would enable sshd
> by default.
>
> The default behaviour (if there is no service-specific default set)
> could also stored with this method - just "touch enabled/DEFAULT".
>
> Advantages of this method:
> - you know exactly which files you have to check for a service - just
>   check for disabled/$service_name and enabled/$service_name.
> - getting a full list for all services should be fast because you only
>   have to read the content of two directories, not any file content.
> - easy to handle in packaging
> - you'll never have any problems with invalid syntax inside the config
>   files ;-))
> - you'll never get headache with file ordering

You could do exactly the same with the other proposal.

Just have a single file for each service
01_ssh.service
with enable/disable ssh in it - and the 99_default file.

> The only thing my proposal doesn't solve is if enabled or disabled
> should win if both exist - but this issue exists in all proposals I've
> seen until now. It's probably something that should be (or already is)
> hardcoded in systemd.

Andreas
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 Andreas Jaeger, Program Manager openSUSE
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