Re: HOWTO articles for migrating from Linux to FreeBSD, especially for pkg?

Hi!


On 18 July 2014 07:28, Lars Engels <lars.engels_at_0x20.net> wrote:
> On Thu, Jul 17, 2014 at 10:21:17PM +0200, Andreas Nilsson wrote:
>> On Thu, Jul 17, 2014 at 10:15 PM, Navdeep Parhar <nparhar_at_gmail.com> wrote:
>>
>> > On 07/17/14 13:12, Adrian Chadd wrote:
>> > > On 17 July 2014 13:03, Alberto Mijares <amijaresp_at_gmail.com> wrote:
>> > >> On Thu, Jul 17, 2014 at 2:58 PM, Adrian Chadd <adrian_at_freebsd.org>
>> > wrote:
>> > >>> Hi!
>> > >>>
>> > >>> 3) The binary packages need to work out of the box
>> > >>> 4) .. which means, when you do things like pkg install apache, it
>> > >>> can't just be installed and not be enabled, because that's a bit of a
>> > >>> problem;
>> > >>
>> > >>
>> > >> No. Please NEVER do that! The user must be able to edit the files and
>> > >> start the service by himself.
>> > >
>> > > Cool, so what's the single line command needed to type in to start a
>> > > given package service?
>> >
>> > Aren't sysrc(8) and service(8) for this kind of stuff?
>> >
>>
>> They sure are.
>>
>> Well, pkg install $service ; sysrc ${service}_enable="YES" would do.
>> Although some services have different names than the packge, which is sort
>> of annoying.
>
> I hacked up a solution for service(8):
>
> http://bsd-geek.de/FreeBSD/service.sh.enable-disable.patch
>
> The patch adds the following directives to service(8):
>
> enable: Grabs an rc script's rcvar value and runs "sysrc foo_enable=YES"
> disable: The opposite of enable
> rcdelete: Deletes an rc script's rcvar value from /etc/rc.conf using
>           "sysrc -x foo_enable"
>
> The nice thing about is that you can use one of the new directives on
> one line with the old ones, as long as the new are the first argument:
>
> # service syslogd enable
> # service apache24 disable stop
> # service apache24 rcdelete stop
> # service nginx enable start
>
>
> So after installing a package, to start and enable a daemon permanently
> all you have to run is
> # service foo enable start
>
> Lars
>
> P.S.: Thansk to Devin for his hard work on sysrc!

Having a way for sysrc and service to know what particular options and
services are exposed by a given package or installed "thing" would be
nice. Right now the namespace is very flat and it's not obvious in all
instances what needs to happen to make it useful and what the options
are.

"Oh, hm, I'd like to know what options there are for controlling the
installed apache24 package, let's see"...

I remember IRIX having that command to list services, stop them and
start them, configure them enabled and disabled. Solaris grew
something like that with Solaris 10 and after the initial learning
curve it was great. Hving something like that would be 100% awesome.


-a