check if DEV is UP

[pxelator] / lib / PXElator / server.pm

diff --git a/lib/PXElator/server.pm b/lib/PXElator/server.pm
index cd1c07b..b423674 100644 (file)
--- a/lib/PXElator/server.pm
+++ b/lib/PXElator/server.pm
@@ -2,25 +2,84 @@ package server;
 
 use warnings;
 use strict;
-use File::Slurp;
 
-our $ip      = '172.16.10.1';
-our $netmask = '255.255.255.0';
+use Data::Dump qw(dump);
+use YAML qw();
+
+our $base_dir = '/srv/pxelator';
+
+use ties;
+
+tie our $ip,      'ties', 'server_ip' => '172.16.10.1';
+tie our $netmask, 'ties', 'netmask'   => '255.255.255.0';
+tie our $bcast,   'ties', 'bcast'     => '172.16.10.254';
+tie our $ip_from, 'ties', 'ip_from'   => 10;
+tie our $ip_to,   'ties', 'ip_to'     => 100;
+tie our $domain,  'ties', 'domain'    => 'pxelator.lan';
+tie our $new_clients, 'ties', 'new_clients' => $ip_to - $ip_from;
+
+if ( my $dev = $ENV{DEV} ) {
+       my $ifconfig = `ifconfig $dev`;
+       die "can't ifconfig $dev" unless $ifconfig;
+       die "device $dev not up: ifconfig $dev\n$ifconfig" unless $ifconfig =~ m/UP/;
+       $ip      = $1 if $ifconfig =~ m/inet addr:(\S+)/s;
+       $netmask = $1 if $ifconfig =~ m/Mask:(\S+)/s;
+       $bcast   = $1 if $ifconfig =~ m/Bcast:(\S)/s;
+}
+
+warn "DEV $ip $bcast $netmask";
+
+our $conf = "$base_dir/conf";
+mkdir $conf unless -e $conf;
+
+sub conf {
+       warn "## conf $conf";
+       $conf;
+}
+
+use Module::Refresh qw//;
+sub refresh {
+       Module::Refresh->refresh;
+       my $from = (caller(1))[3];
+       $from =~ s{^(\w+)::.+$}{$1};
+       my $eval = '$' . $from . '::debug = server::debug();';
+       warn "refresh $eval\n";
+       eval $eval;
+       warn $@ if $@;
+};
 
-our ( $ip_from, $ip_to ) = ( 10, 100 );
+mkdir $_ foreach grep { ! -d $_ } map { "$conf/$_" } ( 'ip', 'mac' );
 
-our $base_dir = '/home/dpavlin/llin/pxelator';
+use File::Slurp;
+sub shared {
+       my ($name, $value) = @_;
 
-our $debug = 0;
-sub debug {
-       my $new = shift;
-       my $path ="$base_dir/conf/debug";
-       if ( defined $new ) {
-               write_file $path, $debug = $new;
+       my $path ="$conf/$name";
+       if ( defined $value ) {
+               write_file $path, $value;
+               warn "update $path = $value";
        } else {
-               $debug = read_file $path if -e $path;
+               $value = read_file $path if -e $path;
        }
-       return $debug;
+       return $value;
+}
+
+sub conf_default { shared($_[0]) || $_[1] }
+
+sub debug { shared('debug', @_) || 0 }
+
+sub as_hash_for {
+       my $ip = shift;
+
+       my $server;
+       map { $server->{ $_ } = eval '$server::' . $_ } ( 'ip', 'netmask', 'bcast', 'domain', 'ip_from', 'ip_to', 'new_clients' );
+
+       my $server_path = "$server::conf/ip/$ip/server.yaml";
+       $server =  YAML::LoadFile $server_path if -e $server_path;
+
+       return $server;
 }
 
 warn "loaded";
+
+1;