Talk:Variables

From FAIWiki

Hi Mr Fai!

das variablen-script, von dem ich auf dem Workshop geredet habe ist fertig, das ergebnis sieht auf meinem Testbaum so aus:

$VAR1 = {

         '$sd' => [
                    'task_mountdisks'
                  ],
         '$name' => [
                      'defnop'
                    ],
         '$thislog' => [
                         'save_log_local',
                         'save_log_remote_shell'
                       ],
         '$DO_INIT_TASKS' => [
                               'task_confdir',
                               'task_extrbase',
                               'task_setup',
                               'task_action',
                               'task_faiend'
                             ]
   };

Das Script selbst so:

#! /usr/bin/perl -w

use strict;
use File::Find;
use English;
my $dir = "/usr/lib/fai";
my @files;
my $klammerRegex;
$klammerRegex = qr/
 \{
   (
     [^{}] | (??{ $klammerRegex })
   )*
 \} 
/sx;

sub wanted;

# Traverse desired filesystems
find({wanted => \&wanted},$dir);

sub wanted {
    my ($dev,$ino,$mode,$nlink,$uid,$gid);
    return if m/.deb$/;

    (($dev,$ino,$mode,$nlink,$uid,$gid) = lstat($_)) &&
    -f _
    && push @files,$File::Find::name;
} 

my @FAI_VARIABLES=qw(BASH BASH_VERSION BOOT_DEVICE BOOT_IMAGE BOOT_PARTITION 
BROADCAST COLOR_FAI_LOGO CONSOLE DEBIAN_FRONTEND DIRSTACK DNSDOMAIN DNSSRVS
DNSSRVS_1 DOMAIN DO_INIT_TASKS FAI FAI_ACTION FAI_CONSOLEFONT FAI_FLAGS 
FAI_KEYMAP FAI_LOCATION FAI_LOGPROTO FAI_REMOTECP FAI_REMOTESH FAI_ROOT 
FAI_RUNDATE FAI_VERSION FUNCNAME GATEWAYS GATEWAYS_1 GROUPS HOSTNAME HOSTTYPE 
IFS INIT_VERSION INSTALL IPADDR LOGDIR LOGPASSWD LOGREMOTEDIR LOGSERVER 
LOGUSER MACHTYPE MNTPOINT NETMASK NETWORK OLDPWD OPTERR OPTIND OSTYPE OS_TYPE 
PATH PIPESTATUS PREVLEVEL PS4 ROOTCMD ROOT_PARTITION RUNLEVEL SERVERINTERFACE 
SHELL SHLVL TEMP TERM UTC addpackages HOST backup bserver cfclasses classes 
console createvt device_size disklist diskvar faimond files fstab hdparm 
hserver ip kernelimage kernelversion liloappend lpipe mirrorhost moduleslist 
moduleslog monserver netdevices netdevices_all netdevices_up nfsroot noexec 
printers rcslog renewclass romountopt rundir sndhostname sshd stamp target 
taskname terror timezone);



my %variables;
my ($fai_variable,$key,$value,$var);

for (@files) {
    chomp $_;
    local $/;
    my $file;
    PrivoxyWindowOpen(FILE,"<$_",) or die "can't open $_: $!";
    while (<FILE>) {
	$file="$file$_";
	}

    while ($file =~ m/(\w+)\(\)\s+$klammerRegex/gsx){
	my $function = $MATCH;
	my $functionName = $1;
	while ($function =~ m/\$\w+/gs) {
	    my $variable = $MATCH;
	    $variables{$variable} = []
 		unless exists $variables{"$variable"};
	    my $MATCHED=0;
	    foreach (@{ $variables{"$variable"} }) {
		if ( $_ eq $functionName) {
		    $MATCHED=1;
		}
	    }
  	    push (@{ $variables{"$variable"} }, $functionName)
		     unless $MATCHED==1;
	}
    }
    close(FILE); 
} 

# Wenn man es nicht im dumper format haben will
#foreach $var ( keys %variables ){
#    print "$var:\t@{ $variables{$var} }\n";
#}
use Data::Dumper;
print Dumper \%variables;

Die nächste Version soll alle Variablen noch selbst extrahieren können, aber einen Überblick bekommt man zumindest erstmal.