Re: Cfagent 'module-mode' suggestion

[Tim Nelson]

On Mon, 10 Oct 2005, Martin, Jason H wrote:

> I was thinking that it would be handy of cfengine had a 'module-mode'
> whereby it would emit all of the true classes and macro definitions in
> the same manner as a module. Particularly, it could be called as a
> sub-feature of --parse.
>
> The idea would be that I have some other scripts that could query
> cfengine for information about the host so as to not have to reimplement
> the same checks, or to gather system information that has been encoded
> as cfengine class definitions.
>
> It would also be nice if this output could optionally be directed to a
> file.

	I've been thinking something similar, and I came up with a 
solution which I haven't implemented yet.

1.      Every time you run cfengine, have it run a script that's something
        like the (untested) following, and pass in the all classes
        variable on the command line
--------------------
#!/usr/bin/perl

($_) = @ARGV;

s/^CFALLCLASSES=\:*(.*?)\:*$/$1/;

@classes = sort split /:/;

putfile "/etc/cfengineclasses", join("\n", @classes);
--------------------
        (yes, you'll need to write putfile, but it's easy).

2.      You can now run cfengine in classes mode.  You invoke it from the
        command line thusly:
        cat /etc/cfengineclasses

        :)

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