source: soft/build_system/build_system/mkcd/tags/V3_3_6_1mdk/mkcd @ 1

Last change on this file since 1 was 1, checked in by fasma, 12 years ago

Initial Import from Mandriva's soft revision 224062 and package revision 45733

File size: 19.5 KB
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1#!/usr/bin/perl
2#
3# to prepare, create and burn iso images
4#
5
6my $VERSION = "3.3.6";
7
8use strict;
9use File::NCopy qw(copy);       
10use Mkcd::Commandline qw(parseCommandLine usage);
11use Mkcd::Tools qw(printTable getTracks du cpal checkcds cleanrpmsrate config compute_md5 include_md5 convert_size);
12use Mkcd::Group;
13use Mkcd::Package qw(packageOutOfRpmsrate getLeaves list_hdlist mkcd_build_hdlist %ARCH);
14use packdrake;
15use RPM::Header;
16
17#
18# FIXME not up to date
19#
20# config structure
21#
22# $config{name} = name for the product
23#
24# $config{list} = list data
25#   $config{list}[list number]{name} = list name
26#                             {filelist} = ( file list location 1, file list location 2, ..., file list location n )
27#
28#   $config{list}[list number]{packages}[location i] = (RPMS location i, SRPMS location i)
29#
30#   $config{list}[list number]{done}
31#                             {empty}
32#                             {auto}
33#                             {cd}
34#                             {sources}
35#
36#   $config{list}[list number]{disc} = { cd => { rep => { options }}  }
37#
38# $config{disc} = disc data
39#   $config{disc}[disc number]{size} = size in bytes
40#   $config{disc}[disc number]{serial} = serial number
41#   $config{disc}[disc number]{name} = disc number irl
42#   $config{disc}[disc number]{longname} = disc long name
43#   $config{disc}[disc number]{fastgeneric} = [ generic data 1, generic data 2, ..., generic data n]
44#
45#   $config{disc}[disc number]{function}{list}[function number] = (function name, { data })
46#
47#   $config{disc}[disc number]{function}{data}{dir}{repository identifier} = $config[2][cd number][1][function number]
48#
49#   $config{disc}[disc number]{function}{data}{'installation'} = $config[2][cd number][1][function number]  it should have only one installation by disc, anyway
50#
51#   $config{disc}[disc number]{function}{data}[2]{'advertising'} = $config[2][cd number][1][function number]
52#
53#   $config{disc}[disc number]{steps} = function to execute to build the disc
54#
55#
56# $config other values:
57#
58#    discMax = higher real disc number
59#    configfile = config file use for this session
60#    lists
61#    fast
62#    nodeps
63#    verbose
64#    print
65#    printscript
66#    nolive
67#    noiso
68#    deps
69#    nosrcfit
70#    product
71#    bugzilla
72#    builddir
73#    topdir
74#    discsize
75#    isodir
76#    filetag
77#    log
78#    mkisoopt
79#    tmp
80#
81
82#
83# Availaible functions
84#
85#   see Functions.pm
86#
87
88# old -> new schema
89#
90# config structure
91#
92# $config[0][0] -> $config{name}
93#
94# $config[1] -> $config{list}
95#   $config[1][list number][0] ->  $config{list}[list number]{filelist}
96#
97#   $config[1][list number][1][location i] -> $config{list}[list number]{packages}[location i]
98#
99#   $config[1][list number][2] -> $config{list}[list number]{done}, $config{list}[list number]{empty} $config{list}[list number]{cd}$config{list}[list number]{auto}
100#
101#   $config[1][list number][3] -> $config{list}[list number]{disc}
102#
103# $config[2] -> $config{disc}
104#   $config[2][cd number][0] -> $config{disc}[disc number]{size}, $config{disc}[disc number]{serial}, $config{disc}[disc number]{name}, $config{disc}[disc number]{longname}, $config{disc}[disc number]{fastgeneric}
105#
106#   $config[2][cd number][1][function number] -> $config{disc}[disc number]{function}{list}[function number]
107#
108#   $config[2][cd number][2]{dir}{repository identifier} -> $config{disc}[disc number]{function}{data}{dir}{repository identifier}
109#
110#   $config[2][cd number][2]{'installation'} -> $config{disc}[disc number]{function}{data}{'installation'}
111#
112#   $config[2][cd number][2]{'advertising'} -> $config{disc}[disc number]{function}{data}[2]{'advertising'}
113#
114#   $config[2][cd number][3] -> $config{disc}[disc number]{steps}
115#
116#
117# $config[3] -> $config{discMax}, $config{configfile}
118#
119#
120use vars qw($topdir %config @params %FUNCTIONS $functions $optimize);
121
122$topdir = `pwd`;
123chop $topdir;
124%config = (
125    lists => [],
126    fast => 0,
127    nodeps => 0,
128    verbose => 0,
129    print => 0,
130    printscript => 0,
131    nolive => 0,
132    noiso => 0,
133    deps => 0,
134    nosrcfit => 0,
135    nosrc => 0,
136    product => 0,
137    bugzilla => 0,
138    builddir => 0,
139    topdir => $topdir,
140    discsize => 681000000,
141    isodir => 0,
142    filetag => 0,
143    log => 0,
144    mkisoopt => "-r -J -hide-rr-moved -nobak -cache-inodes",
145    tmp => $ENV{TMPDIR} || "$topdir/tmp",
146    disc_building_tries => 3,
147    rejected_options => { 
148        no_disc => "Could not add more disc for this package",
149        no_space => "Not enough space",
150        deps => "Missing dependencies",
151        old_version => "More recent version found",
152        deps_rejected => "Some needed dependencies rejected",
153        excluded => "Explicitely excluded",
154        order_pb => "Needed dependency could not be put before",
155        sequential => "Could not add interlist dependencies in sequential mode",
156        autodeps => "not selected in rpm lists"
157    },
158    optimize_space => 1,
159    ARCH => \%ARCH
160);
161
162$config{group} = new Mkcd::Group(\%config);
163$functions = $config{group}{disc}{functions}{functions};
164my $arg = @ARGV;
165@params = ( 
166    #    [ "one letter option", "long name option", "number of args (-X means Žat least XŽ)", "help text", "function to call", "log info"]
167    [ "", "mkcd", 0, "<options>", "mkcd Mandrake Linux Disc maker", sub { $arg or usage('mkcd',\@params) }, "" ],
168    [ "a", "auto", [
169        ["", "auto", -1, "<repository> <extra RPMS directory 1> <extra RPMS directory 2> ... <extra RPMS directory n>", "Auto mode configuration", 
170        sub {   
171            my ($tmp, @arg) = @_;
172            $tmp->[0] ||= {};
173            push @$tmp, @arg;
174            1
175        }, "Setting auto mode arguments"],
176        ["c", "cd", 1, "<number of discs>", "Max number of discs", sub { my ($tmp, $cd) = @_; if ($cd =~ /\d+/) { $tmp->[0]{cd} = $cd } else { return 0 }; 1 }, "Setting max number of discs"],
177        ["s", "sources", [
178          [ "", "sources", 0, "<options>", "Sources mode options", 
179            sub {   my ($tmp) = @_;
180                $tmp->[0] ||= {};
181                1
182            }, "Setting source mode options" ],
183          [ "s", "separate", 0, "", "Separate binaries discs from sources discs", sub { my ($tmp) = @_; $tmp->[0]{separate} = 1 }, "Setting source mode separate option" ]
184        ], "", "Create SRPMS discs too", sub { my ($tmp, $opt) = @_; $tmp->[0]{sources} = $opt }, "Setting source mode"],
185        ["", "noisolinux", 0, "", "Do not use a isolinux boot", sub { my ($tmp) = @_; $tmp->[0]{noisolinux} = 1 }, "Setting noisolinux option"]
186], "[options] <repository> <extra RPMS directory 1> <extra RPMS directory 2> ... <extra RPMS directory n>", "Automated mode, build discs from a repository.", \&auto_mode, "Auto mode" ],
187    [ "", "addmd5", 1, "<iso file>", "Add md5sum to iso header.", sub { my $err = include_md5(pop,1,1); print $err }, "Adding md5 to ISO header" ],
188    [ "k", "checkmd5", 1, "<iso file>", "Checking md5sum of iso header.", sub { my $err = include_md5(pop,0,1); print $err }, "Checking md5 of ISO header" ],
189    [ "", "bugzilla", 0, "", "Use bugzilla as information source.", sub { $config{bugzilla} = 1 }, "Using Bugzilla" ],
190    [ "b", "builddir", 1, "<build dir>", "Where live iso image are created (default current dir).",  sub { $config{builddir} = pop @_ }, "Setting the build directory" ],
191    [ "", "buildhdlist", -1, "<rpms dir 1> <rpms dir 2> ... <rpms dir n>", "Build hdlist.cz files for given directories.", 
192    sub {
193        my $i;
194        mkcd_build_hdlist(1 + @_, [ 0, map { $i++; { rpms => [ glob "$_/*.rpm" ], hdlist => "./hdlist$i.cz", synthesis => "./synthesis.hdlist$i.cz" } } @_ ], "$config{tmp}/.build_hdlist")
195    }, "building hdlist files" ],
196    [ "", "batch", 2, "<discs list> <batch file>", "batch mode to rebuilt discs from a previous session.",  \&batchMode, "Batch mode" ],
197    [ "c", "catto", 1, "<log file>", "Log file.", sub { $config{log} = pop @_; open LOG, ">$config{log}" or die "unable to open $config{log}\n" }, "Log file" ],
198    [ "", "listrpmsrate", 1, "<rpmsrate file>", "List the package in the rpmsrate file", \&packageOutOfRpmsrate, "Listing rpmsrate file" ],
199    [ "d", "depslist-creation", 0 , "", "rebuild the desplist.ordered file before checking the list.", sub { $config{deps}=1 }, "Depslist creation switch" ],
200    [ "", "discsize", 1 , "<disc size in bytes>", "Select a custom disc size (default $config{discsize}).", sub { $config{discsize} = convert_size(pop, $config{discsize}, $config{LOG}) }, "Custom disc size selection" ],
201    [ "f", "fast", 0 , "", "fast mode.", sub { 
202        $config{fast} = 1;
203        $config{disc_building_tries} = 1;
204        $optimize = 0;
205        $config{optimize_space} = 0
206    }, "Fast mode" ],
207    [ "", "getleaves", 1, "<depslist file>", "Getting leaves from a depslist.ordered file", \&getLeaves, "Getting leaves from a depslist.ordered" ],
208# FIXME function help should take 0 or one argument, but this is not possible with this structure
209    [ "h", "help", -1, "<path> <to> <the> <function>", "Display help, eg. mkcd -h installation fixed. Type mkcd -h config for configuration files options.", 
210    sub { 
211        my (@function) = @_; 
212        if (@function) { 
213            my $key = join '/', @function; 
214            if (ref $FUNCTIONS{$key}) {
215                usage($key, $FUNCTIONS{$key})
216            }
217        }
218        usage("mkcd", \@params);
219        }, "" ],
220    [ "", "check", -1, "<dir 1> <dir 2> ... <dir n>", "Check the hdlists, depslist and RPMS consistency.", sub { checkcds(@_) }, "Checking the hdlists, depslist and RPMs consistency" ],
221    [ "K", "checkdisc", 2, "<ISO mount point> <md5 file>", "Check the disc.", sub { check_discs(@_) }, "Checking the disc" ],
222    [ "i", "isodir", 1, "<iso dir>", "Where ISOs are built (default ./iso/product_name/).",  sub { $config{isodir} = pop @_ }, "Setting the iso directory" ],
223    [ "l", "lists", 1 , "", "lists of discs taken into account.", sub { $config{lists} = getTracks(pop @_) }, "Using given disc list" ],
224    [ "m", "make", 1, "<cds number>", "Build the discs.", \&make , "Building the discs" ],
225    [ "", "nodeps", 0, "", "Do not include automatically dependencies of packages", sub { $config{nodeps} = 1 }, "Setting nodeps flag" ],
226    [ "", "nolive", 0, "", "Do not create live image of the discs.", sub { $config{nolive} = 1 }, "Setting nolive option" ],
227    [ "", "noiso", 0, "", "Do not create iso images of the discs.", sub { $config{noiso} = 1 }, "Setting noiso option" ],
228    [ "", "nosrcfit", 0, "", "Do not stop if sources discs are full", sub { $config{nosrcfit} = 1 }, "Setting nosrcfit option" ],
229    [ "", "nosrc", 0, "", "Do not include sources", sub { $config{nosrc} = 1 }, "Setting nosrc option" ],
230    [ "", "oem", -1, "<root of disc 1> <root of disc 2> ... <root of disc n>", "Build a OEM installation CD based on the given disc", \&oem, "Building oem disc" ],
231    [ "p", "printscript", 1, "<script file>", "Print the script that can be use to rebuild the discs", sub { $config{printscript} = shift }, "Printing script" ],
232    [ "", "printdiscsfiles", 1, "<file>", "Print the contains of each disc", sub { $config{print} = shift }, "Printing disc contains" ],
233    [ "", "pl", -1, "<hdlist 1> <hdlist 2> ... <hdlist n>", "Do a packdrake -l on the hdlists", sub { list_hdlist(@_) }, "Printing hdlist contents" ],
234    [ "s", "spec", 1, "<config file>", "Configuration file", sub { config(shift, \%config,$functions) } , "Loading configuration file" ],
235    [ "t", "topdir", 1, "<top dir>", "Where files are created (default current dir).",  sub { $config{topdir} = pop @_; $config{tmp} = $ENV{TMPDIR} || "$config{$topdir}/tmp" }, "Setting the top directory" ],
236    [ "", "update-rpmsrate", -2, "<rpmsrate> <rpms directory 1> <rpms directory 2> ... <rpms directory n>", "Add major to libraries in rpmsrate", 
237        sub { 
238            my %rpm;
239            foreach (@_) { $rpm{$_} = [ map { s/\.rpm$//; $_ } glob "$_/*.rpm" ] };
240            cleanrpmsrate(shift,0,0, \%rpm) 
241        }, "Adding major to libraries in rpmsrate" ],
242    [ "", "verbose", 1 , "<log level>", "Print more messages (the higher the more, 5 is the higher)", sub { $config{verbose} = shift; 1 }, "Setting the verbose flag" ],
243    [ "v", "version", 0, "", "Print program version",  sub { print_fh($config{LOG}, "\nmkcd version $VERSION\n"); 1 }, "" ],
244    [ "", "disc_building_tries", 1 , "<maximum number of iteration to build correct ISO size>", "Set the number of iterations when trying to adjust ISO size", sub { $config{disc_building_tries} = shift; $optimize = 1 }, "Setting the disc_building_tries value" ],
245    [ "", "use_optimize_space", 1 , "<number of disc building tries>", "Use optimize_space algorythm", 
246    sub { 
247        my $t = shift; 
248        $config{disc_building_tries} = $t; 
249        $optimize = 1;
250        $config{optimize_space} = $t
251        }, "Setting the disc_building_tries value" ],
252    [ "P", "Publisher", 1 , "<publisher name>", "Set the publisher name for ISO header publisher_id (128 char max)", sub { $config{Publisher} = substr shift, 0, 128 }, "Setting the publisher ID flag" ],
253#    [ "", "test", 0 , "", "Set the publisher name for ISO header publisher_id (128 char max)", sub { print "ARCH ", keys %{$config{ARCH}} , "\n\n" }, "Setting the publisher ID flag"],
254);
255
256# FIXME this permit to have specific help
257foreach (@params) {
258    $FUNCTIONS{"$_->[1]"} = ref $_->[2] ? $_->[2] : [ $_ ]
259}
260
261$FUNCTIONS{mkcd} = \@params;
262foreach my $k (keys %{$functions}) {
263    $FUNCTIONS{$k} = $functions->{$k};
264    foreach (@{$functions->{$k}}) {
265        $FUNCTIONS{"$k/$_->[1]"} = ref $_->[2] ? $_->[2] : [ $_ ]
266    }
267    push @{$FUNCTIONS{"config"}} , $functions->{$k}->[0]
268}
269
270local *LOG;
271open LOG, ">&STDERR";   
272$config{LOG} = *LOG;
273
274my $todo = parseCommandLine("mkcd", \@ARGV, \@params);
275@ARGV and usage("mkcd", \@params, "@ARGV, too many arguments");
276foreach my $t (@$todo)  {
277    print LOG "mkcd: $t->[2]\n";
278    &{$t->[0]}(@{$t->[1]}) or print LOG "ERROR: $t->[2]\n";
279}
280
281# FIXME only to make perl_checker happy
282sub print_fh {
283    my ($fh, $text) = @_;
284    print $fh $text
285}
286
287sub batchMode {
288    my ($cds, $file) = @_;
289    config($file, \%config,$functions);
290    my ($discsFiles, $cd) = readBatchFile($file);
291    (my $lists,$cds) = getDiscsList($cds);
292    my @mkisos;
293    my @size;
294    Mkcd::Disc::makeDiscs(0,$lists,$cds, \@size, \@mkisos,$discsFiles);
295    Mkcd::Disc::makeDiscs(1,$lists,$cds, \@size, \@mkisos,$discsFiles,$cd);
296}
297
298sub getDiscsList {
299    my ($cds) = @_;
300    $cds = getTracks($cds);
301    print LOG "getDiscList: discs @$cds\n";
302    my %list;
303    $cds = [grep { ref $config{disc}[$_] and do { $list{$_} = 2; push @{$config{lists}}, $_ } or print LOG "WARNING: disc $_ not defined\n" and 0 } @$cds];
304    $config{lists} ||= $cds;
305    $config{lists} = [grep { $list{$_} or ref $config{disc}[$_] and $list{$_} = 1 or print LOG "WARNING: disc $_ not defined\n" and 0 } @{$config{lists}}];
306    return (\%list,$cds)
307}
308
309sub auto_mode {
310    my ($opt,$repository, @rpms) = @_;
311    $config{nolive} = 1;
312    $config{nosrcfit} = 1;
313    $config{deps} = 1;
314    if (!$optimize) {
315        $config{disc_building_tries} = 1;
316        $config{optimize_space} = 0;
317    }
318    -d "$repository/Mandrake" or print "ERROR: $repository/Mandrake does not exist\n" and return 0;
319    my $dir = "$repository/Mandrake";
320    local *DIR; opendir DIR, $dir;
321    my $size;
322    foreach (readdir DIR) {
323        -d "$dir/$_" or next;
324        m/RPMS(\d*)$/ or next;
325        print LOG "auto_mode: adding $dir/$_\n";
326        unshift @rpms, "$dir/$_"
327    }
328    my ($name, $tag);
329    if (-f "$repository/VERSION") {
330        local *A; open A, "$repository/VERSION";
331        <A>;
332        /^Mandrake Linux (.*) \d{8} \d{2}:\d{2}$/;
333        ($name,$tag) = split ' ', $1
334    }
335    $name ||= "Cooker";
336    $config{name} = $name;
337    foreach (keys %$opt) { $config{list}[1]{$_} = $opt->{$_} }
338    $config{list}[1]{auto} = 1;
339    foreach (keys %{$config{list}[1]}) { print LOG "auto_mode: list options $_ -> $config{list}[1]{$_}\n" }
340    foreach (@rpms) {
341        #       $size += du($_);
342        push @{$config{list}[1]{packages}}, [$_ , @rpms]
343    }
344    my %cd = (1 => 2);
345    my @cd = 1;
346    #print LOG "Total RPMS $size\n";
347    $config{disc}[1]{size} = $config{discsize};
348    $config{disc}[1]{serial} = "${name}-disc1";
349    $config{disc}[1]{name} = 1;
350    $config{disc}[1]{longname} = "MandrakeLinux $name";
351    $config{disc}[1]{appname} = "MandrakeLinux $name disc 1";
352    $config{disc}[1]{label} = substr "MandrakeLinux-$name-1.i586", 0, 32;
353    my $idx = 1;
354    my %idx;
355    &{$functions->{dir}[0][5]}(1,$idx, "rpms", "Mandrake/RPMS");
356    $idx++;
357    &{$functions->{generic}[0][5]}(1,$idx, "rpms",1);
358    $idx++;
359    $idx{installation} = $idx;
360    &{$functions->{installation}[0][5]}(1,$idx);
361    &{$functions->{installation}[5][5]}(1,$idx, "$repository");
362    &{$functions->{installation}[10][5]}(1,$idx, "$tag");
363    &{$functions->{installation}[18][5]}(1,$idx, "1/rpms");
364    $idx++;
365    &{$functions->{boot}[0][5]}(1,$idx);
366    if (-w "$repository/isolinux/isolinux.bin" && !$opt->{noisolinux}) {
367        &{$functions->{boot}[1][5]}(1,$idx, { isolinux => 1 }, "isolinux");
368        &{$functions->{boot}[2][5]}(1,$idx, { bootimg => 1 }, "isolinux/isolinux.bin");
369        &{$functions->{boot}[5][5]}(1,$idx, "$repository/isolinux");
370        $idx++;
371        &{$functions->{cp}[0][5]}(1,$idx, "$repository/images", "images/");
372    } else {
373        &{$functions->{boot}[2][5]}(1,$idx, { bootimg => 1, dir => "Boot" }, "images/cdrom.img");
374        &{$functions->{boot}[4][5]}(1,$idx, "$repository/images");
375    }
376    if ($opt->{sources}) {
377        $config{nosrcfit} = 0;
378        if ($opt->{sources}{separate}) {
379            $config{disc}[2]{size} = $config{discsize};
380            $config{disc}[2]{serial} = "${name}-disc2-sources";
381            $config{disc}[2]{name} = 2;
382            $config{disc}[2]{longname} = "MandrakeLinux $name sources";
383            $config{disc}[1]{appname} = "MandrakeLinux $name sources disc 2";
384            push @cd,2;
385            $cd{2} = 2;
386            &{$functions->{dir}[0][5]}(2,1, "srpms", "Mandrake/SRPMS");
387            &{$functions->{generic}[0][5]}(2,2, "srpms",1);
388            &{$functions->{generic}[1][5]}(2,2, { source => 1 });
389            &{$functions->{installation}[17][5]}(1, $idx{installation}, "2/srpms")
390        } else {
391            $idx++;
392            &{$functions->{dir}[0][5]}(1,$idx, "srpms", "Mandrake/SRPMS");
393            $idx++;
394            &{$functions->{generic}[0][5]}(1,$idx, "srpms",1);
395            &{$functions->{generic}[1][5]}(1,$idx, { source => 1 });
396            &{$functions->{installation}[17][5]}(1, $idx{installation}, "1/srpms")
397        }
398    } else {
399        &{$functions->{installation}[6][5]}(1,$idx)
400    }
401    printTable(\%config);
402    $config{group}->makeWithGroups(\%cd, \@cd);
403    1   
404}
405
406sub make {
407    my ($cds) = @_;
408    $config{group}->makeWithGroups(getDiscsList($cds));
409    1
410}               
411
412sub oem {
413    my (@cds) = @_;
414}
415
416sub check_discs {
417    my ($mntpt, $mdfile) = @_;
418    local *A; open A, "$mdfile";
419    my %ignore;
420    my $sum;
421    while (<A>) {
422        chomp;
423        last if ($sum) = /^(.*) - .*$/;
424        my $t = "/$_";
425        $t =~ s/\/\/+/\//g;
426        $ignore{$t} = 1
427    }
428    close A;
429    my $hexdigest = compute_md5([[ "/", $mntpt ]], \%ignore);
430    if ($hexdigest eq $sum) {
431        print "\nOK ($hexdigest)\n"
432    } else {
433        print "\nFAILED (computed $hexdigest <> expected $sum)\n";
434        return 0
435    }
436    1
437}
438
439#
440# Changeloh
441#
442# 2002 03 15
443# new sources handling
444#
445# 2002 03 19
446# cdcom are now handled as normal list, so that deps are not forced.
447
448# 2002 03 23
449# change Group.pm getAlone to work with alone group.
450#
451# 2002 03 29
452# fix a bug in Functions.pm for nolive mode and rpmsrate
453#
454# 2002 04 12
455# oem mode
456#
457# 2002 05 02
458# add separate mode for auto sources mode
459#
460# 2002 05 07
461# add check_discs
462#
463# 2002 05 09
464# check_discs, compute_md5, md5_add_tree
465#
466# 2002 05 13
467# fix fentry problem in List.pm that create the "needed spreading" problem
468#
469# 2002 06 01
470# first draft for new needed code
471# new perl-URPM
472#
473# 2002 06 01
474# fix perl-URPM integration
475#
476# 2002 06 15
477# begin new diff mode.
478#
479# 2002 08 12
480# change clean_rpmsrate
481#
482# 2002 08 19
483# start optimize_space for sources moving
484# change diff structure
485# change process_diff
486#
487# 2002 08 20
488# some interlist and intergroup binaries moving in optimize_space
489#
490# 2002 08 25
491# various update of optimize_space
492# new needed and deps handling in optimize_space
493#
494# 2002 08 29
495# prepare_cloned_disc enhanced
496# add disc_prereq data in groups for cloned discs
497#
498# 20020918
499# fixes in optimize_space
500#
501# 20020930
502# fix help mode for options with extra options such as auto
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