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# makedesc directory file
# Scan the directory for files, and use the files to generate a task
# description file. The format of the task description file is described in
# tata.c. The format of the input files is:
# Task: desktop
# Section: user
# Description: Provide a basic GUI system
# This task provides functionality for a basic desktop; whether Gnome
# based, KDE based or customised. With this task, your system will boot
# into a graphical login screen, at which point you can choose which of
# these desktops you wish to use on a per-user basis. You can further
# customise your desktop once installed.
# Packages:
# kdebase
# gdm
# ...
# Hash-comments are allowed in the files, but must be on their own lines.
my $dir=shift or die "no directory specified\n";
my $file=shift or die "no file specified\n";
my %package;
my $dolint=1;
local $/="\n\n";
if (! open (AVAIL, "/var/lib/dpkg/available")) {
warn "cannot real available file, so disabling lint check\n";
while (<AVAIL>) {
my ($package)=/Package:\s*(.*?)\n/;
close AVAIL;
open (OUT, ">$file") or die ">$file: $!";
use File::Find;
find(\&processfile, $dir);
sub processfile {
my $file=$_; # File::Find craziness.
return unless $file =~ /^[-+_.a-z0-9]+$/ and -f $file;
open (IN, $file) or die "$file: $!";
my %fields;
my $field="";
while (<IN>) {
next if /^\s*#/;
if (/^\s/) {
else {
($field, my $value)=split(/:\s*/, $_, 2);
close IN;
# Basic lint of the listed packages.
# TODO: a better lint would incloude checks for conflicting
# packages. Hard tho.
if ($dolint) {
foreach (split ' ', $fields{packages}) {
if (! $package{$_}) {
print STDERR "$file: $_ is not a valid package.\n";
print OUT map { ucfirst($_).": ".$fields{$_}."\n" }
qw{task section description};
print OUT "\n";
close OUT;