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#!/usr/bin/perl
#
# 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
# data.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-list:
# 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 %notmain;
my $dolint=1;
{
local $/="\n\n";
if (! open (AVAIL, "apt-cache dumpavail |")) {
warn "cannot real available info, so disabling lint check\n";
$dolint=0;
}
while (<AVAIL>) {
my ($package)=/Package:\s*(.*?)\n/;
$package{$package}=1;
if (/Section:\s*(contrib|non-free)/) {
$notmain{$package}=$1;
}
}
close AVAIL;
}
open (OUT, ">$file") or die ">$file: $!";
use File::Find;
find({ wanted => \&processfile, preprocess => sub { return sort @_}}, $dir);
sub processfile {
my $file=$_; # File::Find craziness.
$file eq 'po' && -d $file && ($File::Find::prune = 1);
return if $File::Find::dir=~/\.svn/;
return unless $file =~ /^[-+_.a-z0-9]+$/ and -f $file;
open (IN, $file) or die "$file: $!";
my %fields;
my $field="";
while (<IN>) {
chomp;
next if /^\s*#/;
s/#.*//;
if (/^\s/) {
$fields{$field}.="\n$_";
}
else {
($field, my $value)=split(/:\s*/, $_, 2);
$field=lc($field);
$fields{$field}=$value;
}
}
close IN;
# Basic lint of the listed packages.
# TODO: a better lint would incloude checks for conflicting
# packages. Hard tho.
if ($dolint) {
foreach my $field (qw(key packages-list)) {
foreach (split ' ', $fields{$field}) {
if (! $package{$_}) {
print STDERR "$file: $_ is not a valid package.\n";
if ($field eq 'key') {
print STDERR "MISSING KEY PACKAGE, TASK BROKEN\n";
}
}
if ($notmain{$_}) {
print STDERR "$file: $_ is in $notmain{$_}.\n";
if ($field eq 'key') {
print STDERR "MISSING KEY PACKAGE, TASK BROKEN\n";
}
}
}
}
}
foreach (qw{task section relevance description key enhances provides depends packages},
grep(/^test-(.*)/, keys %fields)) {
print OUT ucfirst($_).": ".$fields{$_}."\n" if length $fields{$_};
}
print OUT "\n";
}
close OUT;