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Date: Wed, 07 Mar 2012 10:18:39 -0500
From: Ryan Johnson <ryan DOT johnson AT cs DOT utoronto DOT ca>
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To: cygwin AT cygwin DOT com
Subject: Re: How to uninstall tetex (without installing texlive)?
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On 07/03/2012 9:14 AM, Ryan Johnson wrote:
> Hi all,
>
> For the moment I don't want to upgrade to texlive (the 200MB download 
> factors in there), but even after removing every visible semblance of 
> tetex, setup still wants to bring in texlive. I've searched setup.ini 
> and ensured that no package listing tetex as a dependency there is 
> installed (tetex, dblatex, kpathsea, etc.) but no luck.
>
> I've attached my current package list from cygcheck ... is there 
> something on there I missed?
Update: the culprits were gnome-common, gtk-doc, and xmlto.

In case it becomes useful to anybody else in the future, below are the 
scripts I used to unmask the dependencies.

Regards,
Ryan

$ join <(cygcheck -cd | sort) <(cat setup.ini | awk -f cygcheck.awk | 
python cygcheck.py texlive)
$ cat cygcheck.awk
/[@]/ {
     printf("%s", $2)
}
/requires:/ {
     for (i=2; i <= NF; i++) {
         printf(" %s", $(i))
     }
     printf("\n")
}

$ cat cygcheck.py
import collections,sys
base,closure = sys.argv[1], set()
users = collections.defaultdict(lambda:set())

for line in sys.stdin:
     names = line.split()
     name = names[0]
     for dep in names[1:]:
         users[dep].add(name)

todos = set(u for u in users.iterkeys() if u.startswith(base))
while todos:
     user = todos.pop()
     if user not in closure:
         closure.add(user)
         todos |= users[user]

print '\n'.join(sorted(closure))


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