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Message-ID: <5271000D.7000604@cwilson.fastmail.fm>
Date: Wed, 30 Oct 2013 08:48:13 -0400
From: Charles Wilson <cygwin@cwilson.fastmail.fm>
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To: The Cygwin Mailing List <cygwin@cygwin.com>
Subject: Re: setup.ini dependency graph?
References: <526A986D.9040202@cwilson.fastmail.fm> <526B8DF9.5000004@tiscali.co.uk>
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On 10/26/2013 5:40 AM, David Stacey wrote:
> On 25/10/13 17:12, Charles Wilson wrote:
> Oooo - this sounds like fun. I've knocked up some (very bad) perl that
> gives you what you need. It generates a graphviz file that you can pipe
> to 'dot' to generate the dependency graph in whatever format you
> require. Put the perl script and your 'setup.ini' file in the same
> directory and type:
>
>      ./graph_setup_ini.pl | dot -Tpdf -osetup.pdf

Thanks, that worked well.

> Your problem here is Big Data: Cygwin has 3041 packages, and any
> dependency graph with this number of nodes is going to look a mess. It
> also takes a while to process the data. Oh, and some PDF viewers won't
> display the output file (LibreOffice Draw was the only tool I have that
> managed it). However, if your starting point is a stripped down Cygwin
> then you might be OK.

Yeah; even for my stripped-down version, I need to pre-process the 
setup.ini and remove all mentions of cygwin, libstdc++6, libgcc1, etc. 
The ncurses DLLs are also a huge nexus.  (It's probably easier to 
exclude those nodes by mucking with the perl, but...)

--
Chuck


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