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Editing: debconf-set-selections

#!/usr/bin/perl
# This file was preprocessed, do not edit!

sub usage {
	print STDERR <<EOF;
Usage: debconf-set-selections [-vcu] [file]
  -v, --verbose     verbose output
  -c, --checkonly   only check the input file format
  -u, --unseen      do not set the 'seen' flag when preseeding values
EOF
	exit(1);
}

use warnings;
use strict;
use Debconf::Db;
use Debconf::Template;
use Getopt::Long;

use vars qw(%opts $filename $debug $error $checkonly $unseen);

sub info {
	my $msg = shift;
	print STDERR "info: $msg\n" if $debug;
}

sub warning {
	my $msg = shift;
	print STDERR "warning: $msg\n";
}

sub error {
	my $msg = shift;
	print STDERR "error: $msg\n";
	$error++
}

sub load_answer {
	my ($owner, $label, $type, $content) = @_;
	
	info "Loading answer for '$label'";

my $template=Debconf::Template->get($label);
	if (! $template) {
		$template=Debconf::Template->new($label, $owner, $type);
		$template->description("Dummy template");
		$template->extended_description("This is a fake template used to pre-seed the debconf database. If you are seeing this, something is probably wrong.");
	}
	$template->type($type);
	
	my $question=Debconf::Question->get($label);
	if (! $question) {
		error("Cannot find a question for $label");
		return;
	}
	$question->addowner($owner, $type);
	$question->value($content);
	if (! $unseen) {
		$question->flag("seen", "true");
	}
}

sub set_flag {
	my ($owner, $label, $flag, $content) = @_;

info "Setting $flag flag";

my $question=Debconf::Question->get($label);
	if (! $question) {
		error("Cannot find a question for $label");
		return;
	}
	$question->flag($flag, $content);
}

my @knowntypes = qw(select boolean string multiselect note password text title);
my @knownflags = qw(seen);

sub ok_format {
	my ($owner, $label, $type, $content) = @_;
	if (! defined $owner || ! defined $label || ! defined $content) {
		error "parse error on line $.: '$_'";
		return;
	}
	elsif (! grep { $_ eq $type } @knowntypes, @knownflags) {
		warning "Unknown type $type, skipping line $.";
		return;
	}
	else {
		return 1;
	}
}

sub mungeline ($) {
	my $line=shift;
	chomp $line;
	$line=~s/\r$//;
	return $line;
}

GetOptions(
	"verbose|v" => \$debug,
	"checkonly|c" => \$checkonly,
	"unseen|u" => \$unseen,
) || usage();

{
	local $ENV{DEBCONF_NOWARNINGS} = 'yes' if $checkonly;
	Debconf::Db->load;
}

$error = 0;

while (<>) {
	$_=mungeline($_);
	while (/\\$/ && ! eof) {
		s/\\$//;
		$_.=mungeline(<>);
	}
	next if /^\s*$/ || /^\s*\#/;
	my ($owner, $label, $type, $content) = /^\s*(\S+)\s+(\S+)\s+(\S+)(?:\s(.*))?/;
	if (! defined $content) {
		$content='';
	}
	if (ok_format($owner, $label, $type, $content)) {
		if (grep { $_ eq $type } @knownflags) {
			info "Trying to set '$type' flag to '$content'";
			set_flag($owner, $label, $type, $content);
		}
		else {
			info "Trying to set '$label' [$type] to '$content'";
			load_answer($owner, $label, $type, $content);
		}
	}
}

if (! $checkonly) {
	Debconf::Db->save;
}

if ($error) {
	exit 1;
}

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