Use Variables / Defines in include statements

[Ondrej Zajicek]

On Tue, Jan 17, 2017 at 01:00:57PM +0100, Jan Matejka wrote:
> On 01/17/2017 11:03 AM, Tim Weippert wrote:
> > Hi, 
> > 
> > i currently try to do different includes, based on an variable/define
> > within the config.
> > 
> > for example:
> > 
> > function test(int asn) {
> > 
> >   [ do something general ]
> > 
> >   include "/etc/bird/" . asn . "-special.conf";
> > 
> > }
> > 
> > As this approach doesn't work, is there currently an possibility to do
> > such includes somehow?
> > 
> > regards, 
> > tim
> > 
> 
> Hi!
> 
> It should be possible to use the case switch to explicitely include
> these files, one by one. It is also needed to reload the config on every
> change.
> 
> case asn {
> 	65500: include "/etc/bird/65500-special.conf";
> 	65511: include "/etc/bird/65511-special.conf";
> 	...
> }

Hi 

Note that include is a preprocessor operation unrelated to the filter
language, so in /etc/bird/65500-special.conf you would have to use { .. }
to have a proper block. Also note that the current grammar require
include to be on a new line, so you would have to use:

case asn {
	65500:
		include "/etc/bird/65500-special.conf";
	65511:
		include "/etc/bird/65511-special.conf";
	...
}


And finally, you could simply use wildcards:

case asn {
	include "/etc/bird/*-special.conf";
}

And then in in each file the appropriate case branch,
like this for /etc/bird/65500-special.conf:

65500: {
	...
}


-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
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"To err is human -- to blame it on a computer is even more so."