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+#!/usr/bin/perl -w
+# -*- Mode: Perl -*-
+# setup.pl ---
+# Author : Manoj Srivastava ( srivasta@tiamat.datasync.com )
+# Created On : Wed Mar 4 15:11:47 1998
+# Created On Node : tiamat.datasync.com
+# Last Modified By : Manoj Srivastava
+# Last Modified On : Tue May 19 11:25:32 1998
+# Last Machine Used: tiamat.datasync.com
+# Update Count : 87
+# Status : Unknown, Use with caution!
+# HISTORY :
+# Description :
+# This file is designed to go into /usr/lib/apt/methods/setup
+#
+
+#use strict;
+#use diagnostics;
+#printf STDERR "DEBUG: Arguments $ARGV[0];$ARGV[1];$ARGV[2];\n";
+
+
+# Handle the arguments
+my $vardir=$ARGV[0];
+my $method=$ARGV[1];
+my $option=$ARGV[2];
+my $config_file = '/etc/apt/sources.list';
+
+my $boldon=`setterm -bold on`;
+my $boldoff=`setterm -bold off`;
+
+my @known_types = ('deb');
+my @known_access = ('http', 'ftp', 'file');
+my @typical_distributions = ('stable', 'unstable', 'frozen', 'non-US');
+my @typical_components = ('main', 'contrib', 'non-free');
+
+my %known_access = map {($_,$_)} @known_access;
+my %typical_distributions = map {($_,$_)} @typical_distributions;
+
+# Read the config file, creating source records
+sub read_config {
+ my %params = @_;
+ my @Config = ();
+
+ die "Required parameter Filename Missing" unless
+ $params{'Filename'};
+
+ open (CONFIG, "$params{'Filename'}") ||
+ die "Could not open $params{'Filename'}: $!";
+ while (<CONFIG>) {
+ chomp;
+ my $rec = {};
+ my ($type, $urn, $distribution, $components) =
+ m/^\s*(\S+)\s+(\S+)\s+(\S+)\s*(?:\s+(\S.*))?$/o;
+ $rec->{'Type'} = $type;
+ $rec->{'URN'} = $urn;
+ $rec->{'Distribution'} = $distribution;
+ $rec->{'Components'} = $components;
+ push @Config, $rec;
+ }
+ close(CONFIG);
+
+ return @Config;
+}
+
+# write the config file; writing out the current set of source records
+sub write_config {
+ my %params = @_;
+ my $rec;
+ my %Seen = ();
+
+ die "Required parameter Filename Missing" unless
+ $params{'Filename'};
+ die "Required parameter Config Missing" unless
+ $params{'Config'};
+
+ open (CONFIG, ">$params{'Filename'}") ||
+ die "Could not open $params{'Filename'} for writing: $!";
+ for $rec (@{$params{'Config'}}) {
+ my $line = "$rec->{'Type'} $rec->{'URN'} $rec->{'Distribution'} ";
+ $line .= "$rec->{'Components'}" if $rec->{'Components'};
+ $line .= "\n";
+ print CONFIG $line unless $Seen{$line}++;
+ }
+ close(CONFIG);
+}
+
+# write the config file; writing out the current set of source records
+sub print_config {
+ my %params = @_;
+ my $rec;
+ my %Seen = ();
+
+ die "Required parameter Config Missing" unless
+ $params{'Config'};
+
+ for $rec (@{$params{'Config'}}) {
+ next unless $rec;
+
+ my $line = "$rec->{'Type'} " if $rec->{'Type'};
+ $line .= "$rec->{'URN'} " if $rec->{'URN'};
+ $line .= "$rec->{'Distribution'} " if $rec->{'Distribution'};
+ $line .= "$rec->{'Components'}" if $rec->{'Components'};
+ $line .= "\n";
+ print $line unless $Seen{$line}++;
+ }
+}
+
+# Ask for and add a source record
+sub get_source {
+ my %params = @_;
+ my $rec = {};
+ my $answer;
+ my ($type, $urn, $distribution, $components);
+
+ if ($params{'Default'}) {
+ ($type, $urn, $distribution, $components) =
+ $params{'Default'} =~ m/^\s*(\S+)\s+(\S+)\s+(\S+)\s+(\S.*)$/o;
+ }
+
+ $type = 'deb';
+ $urn = "http://llug.sep.bnl.gov/debian" unless $urn;
+ $distribution = "stable" unless $distribution;
+ $components = "main contrib non-free" unless $components;
+
+
+ $rec->{'Type'} = 'deb';
+ $| = 1;
+
+ my $done = 0;
+
+ while (!$done) {
+ print "\n";
+ print "$boldon URL [$urn]: $boldoff";
+
+ $answer=<STDIN>;
+ chomp ($answer);
+ $answer =~ s/\s*//og;
+
+ if ($answer =~ /^\s*$/o) {
+ $rec->{'URN'} = $urn;
+ last;
+ }
+ else {
+ my ($scheme) = $answer =~ /^\s*([^:]+):/o;
+ if (! defined $known_access{$scheme}) {
+ print "Unknown access scheme $scheme in $answer\n";
+ print " The available access methods known to me are\n";
+ print join (' ', @known_access), "\n";
+ print "\n";
+ }
+ else {
+ $rec->{'URN'} = $answer;
+ last;
+ }
+ }
+ }
+
+ print "\n";
+
+ print " Please give the distribution tag to get or a path to the\n";
+ print " package file ending in a /. The distribution\n";
+ print " tags are typically something like:$boldon ";
+ print join(' ', @typical_distributions), "$boldoff\n";
+ print "\n";
+ print "$boldon Distribution [$distribution]:$boldoff ";
+ $answer=<STDIN>;
+ chomp ($answer);
+ $answer =~ s/\s*//og;
+
+ if ($answer =~ /^\s*$/o) {
+ $rec->{'Distribution'} = $distribution;
+ $rec->{'Components'} = &get_components($components);
+ }
+ elsif ($answer =~ m|/$|o) {
+ $rec->{'Distribution'} = "$answer";
+ $rec->{'Components'} = "";
+ }
+ else {
+ # A distribution tag, eh?
+ warn "$answer does not seem to be a typical distribution tag\n"
+ unless defined $typical_distributions{$answer};
+
+ $rec->{'Distribution'} = "$answer";
+ $rec->{'Components'} = &get_components($components);
+ }
+
+ return $rec;
+}
+
+sub get_components {
+ my $default = shift;
+ my $answer;
+
+ print "\n";
+ print " Please give the components to get\n";
+ print " The components are typically something like:$boldon ";
+ print join(' ', @typical_components), "$boldoff\n";
+ print "\n";
+ print "$boldon Components [$default]:$boldoff ";
+ $answer=<STDIN>;
+ chomp ($answer);
+ $answer =~ s/\s+/ /og;
+
+ if ($answer =~ /^\s*$/o) {
+ return $default;
+ }
+ else {
+ return $answer;
+ }
+}
+
+sub get_sources {
+ my @Config = ();
+ my $done = 0;
+
+ my @Oldconfig = ();
+
+ if (-e $config_file) {
+ @Oldconfig = &read_config('Filename' => $config_file)
+ }
+
+ print "\t$boldon Set up a list of distribution source locations $boldoff \n";
+ print "\n";
+
+ print " Please give the base URL of the debian distribution.\n";
+ print " The access schemes I know about are:$boldon ";
+ print join (' ', @known_access), "$boldoff\n";
+# print " The mirror scheme is special that it does not specify the\n";
+# print " location of a debian archive but specifies the location\n";
+# print " of a list of mirrors to use to access the archive.\n";
+ print "\n";
+ print " For example:\n";
+ print " file:/mnt/debian,\n";
+ print " ftp://ftp.debian.org/debian,\n";
+ print " http://ftp.de.debian.org/debian,\n";
+# print " and the special mirror scheme,\n";
+# print " mirror:http://www.debian.org/archivemirrors \n";
+ print "\n";
+
+ my $index = 0;
+ while (!$done) {
+ if ($Oldconfig[$index]) {
+ push (@Config, &get_source('Default' => $Oldconfig[$index++]));
+ }
+ else {
+ push (@Config, &get_source());
+ }
+ print "\n";
+ print "$boldon Would you like to add another source?[y/N]$boldoff ";
+ my $answer = <STDIN>;
+ chomp ($answer);
+ $answer =~ s/\s+/ /og;
+ if ($answer =~ /^\s*$/o) {
+ last;
+ }
+ elsif ($answer !~ m/\s*y/io) {
+ last;
+ }
+ }
+
+ return @Config;
+}
+
+sub main {
+ if (-e $config_file) {
+ my @Oldconfig = &read_config('Filename' => $config_file);
+
+ print "$boldon I see you already have a source list.$boldoff\n";
+ print "-" x 72, "\n";
+ &print_config('Config' => \@Oldconfig);
+ print "-" x 72, "\n";
+ print "$boldon Do you wish to change it?[y/N]$boldoff ";
+ my $answer = <STDIN>;
+ chomp ($answer);
+ $answer =~ s/\s+/ /og;
+ exit 0 unless $answer =~ m/\s*y/io;
+ }
+ # OK. They want to be here.
+ my @Config = &get_sources();
+ #&print_config('Config' => \@Config);
+ &write_config('Config' => \@Config, 'Filename' => $config_file);
+}
+
+&main();
+
+
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