drakx - Mageia Installer and base platform for many utilities

index : drakx

Mageia Installer and base platform for many utilities

Thierry Vignaud [tv]

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kernel/modules.pl

1 files changed, 2 insertions, 3 deletions

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package pkgs; # $Id$

use diagnostics;
use strict;
use vars qw(*LOG %preferred $limitMinTrans %compssListDesc);

use MDK::Common::System;
use URPM;
use URPM::Resolve;
use common;
use install_any;
use run_program;
use detect_devices;
use log;
use fs;
use loopback;
use c;



my @preferred = qw(perl-GTK postfix gcc gcc-cpp gcc-c++ proftpd ghostscript-X vim-minimal kernel db1 db2 ispell-en Bastille-Curses-module nautilus libxpm4 zlib1 libncurses5 harddrake);
@preferred{@preferred} = ();

#- lower bound on the left ( aka 90 means [90-100[ )
%compssListDesc = (
   5 => __("must have"),
   4 => __("important"),
   3 => __("very nice"),
   2 => __("nice"),
   1 => __("maybe"),
);

#- constant for small transaction.
$limitMinTrans = 8;


#- package to ignore, typically in Application CD. OBSOLETED ?
my %ignoreBadPkg = (
		    'civctp-demo'   => 1,
		    'eus-demo'      => 1,
		    'myth2-demo'    => 1,
		    'heretic2-demo' => 1,
		    'heroes3-demo'  => 1,
		    'rt2-demo'      => 1,
		   );

sub packageMedium { my ($packages, $p) = @_; $p or die "invalid package from\n" . backtrace();
		    foreach (values %{$packages->{mediums}}) {
			$p->id >= $_->{start} && $p->id <= $_->{end} and return $_;
		    }
		    return }

sub cleanHeaders {
    my ($prefix) = @_;
    rm_rf("$prefix/tmp/headers") if -e "$prefix/tmp/headers";
}

#- get all headers from an hdlist file.
sub extractHeaders {
    my ($prefix, $pkgs, $media) = @_;
    my %medium2pkgs;

    cleanHeaders($prefix);

    foreach (@$pkgs) {
	foreach my $medium (values %$media) {
	    $_->id >= $medium->{start} && $_->id <= $medium->{end} or next;
	    push @{$medium2pkgs{$medium->{medium}} ||= []}, $_;
	}
    }

    foreach (keys %medium2pkgs) {
	my $medium = $media->{$_};

	eval {
	    require packdrake;
	    my $packer = new packdrake("/tmp/$medium->{hdlist}", quiet => 1);
	    $packer->extract_archive("$prefix/tmp/headers", map { $_->header_filename } @{$medium2pkgs{$_}});
	};
    }

    foreach (@$pkgs) {
	my $f = "$prefix/tmp/headers/". $_->header_filename;
	$_->update_header($f) or log::l("unable to open header file $f"), next;
    }
}

#- TODO BEFORE TODO
#- size and correction size functions for packages.
my $B = 1.20873;
my $C = 4.98663; #- doesn't take hdlist's into account as getAvailableSpace will do it.
sub correctSize { $B * $_[0] + $C }
sub invCorrectSize { ($_[0] - $C) / $B }

sub selectedSize {
    my ($packages) = @_;
    my $size = 0;
    foreach (@{$packages->{depslist}}) {
	$_->flag_selected and $size += $_->size;
    }
    $size;
}
sub correctedSelectedSize { correctSize(selectedSize($_[0]) / sqr(1024)) }

sub size2time {
    my ($x, $max) = @_;
    my $A = 7e-07;
    my $limit = min($max * 3 / 4, 9e8);
    if ($x < $limit) {
	$A * $x;
    } else { 
	$x -= $limit;
	my $B = 6e-16;
	my $C = 15e-07;
	$B * $x ** 2 + $C * $x + $A * $limit;
    }
}


#- searching and grouping methods.
#- package is a reference to list that contains
#- a hash to search by name and
#- a list to search by id.
sub packageByName {
    my ($packages, $name) = @_;
    #- search package with given name and compatible with current architecture.
    #- take the best one found (most up-to-date).
    my @packages;
    foreach (keys %{$packages->{provides}{$name} || {}}) {
	my $pkg = $packages->{depslist}[$_];
	$pkg->is_arch_compat or next;
	$pkg->name eq $name or next;
	push @packages, $pkg;
    }
    my $best;
    foreach (@packages) {
	if ($best && $best != $_) {
	    $_->compare_pkg($best) > 0 and $best = $_;
	} else {
	    $best = $_;
	}
    }
    $best or log::l("unknown package `$name'") && undef;
}
sub packageById {
    my ($packages, $id) = @_;
    my $pkg = $packages->{depslist}[$id]; #- do not log as id unsupported are still in depslist.
    $pkg->is_arch_compat && $pkg;
}
sub packagesOfMedium {
    my ($packages, $medium) = @_;
    $medium->{start} <= $medium->{end} ? @{$packages->{depslist}}[$medium->{start} .. $medium->{end}] : ();
}
sub packagesToInstall {
    my ($packages) = @_;
    my @packages;
    foreach (values %{$packages->{mediums}}) {
	$_->{selected} or next;
	log::l("examining packagesToInstall of medium $_->{descr}");
	push @packages, grep { $_->flag_selected } packagesOfMedium($packages, $_);
    }
    log::l("found " .scalar(@packages). " packages to install");
    @packages;
}

sub allMediums {
    my ($packages) = @_;
    sort { $a <=> $b } keys %{$packages->{mediums}};
}
sub mediumDescr {
    my ($packages, $medium) = @_;
    $packages->{mediums}{$medium}{descr};
}

sub packageRequest {
    my ($packages, $pkg) = @_;

    #- check if the same or better version is installed,
    #- do not select in such case.
    $pkg && ($pkg->flag_upgrade || !$pkg->flag_installed) or return;

    #- check for medium selection, if the medium has not been
    #- selected, the package cannot be selected.
    foreach (values %{$packages->{mediums}}) {
	!$_->{selected} && $pkg->id >= $_->{start} && $pkg->id <= $_->{end} and return;
    }

    return { $pkg->id => 1 };
}

sub packageCallbackChoices {
    my ($urpm, $db, $state, $choices) = @_;
    my $prefer;
    foreach (@$choices) {
	exists $preferred{$_->name} and $prefer = $_;
	$_->name =~ /kernel-\d/ and $prefer ||= $_;
    }
    $prefer || $choices->[0]; #- first one (for instance).
}

#- selection, unselection of package.
sub selectPackage {
    my ($packages, $pkg, $base, $otherOnly) = @_;

    #- select package and dependancies, otherOnly may be a reference
    #- to a hash to indicate package that will strictly be selected
    #- when value is true, may be selected when value is false (this
    #- is only used for unselection, not selection)
    my $state = $packages->{state} ||= {};
    $state->{selected} = {};
    $state->{requested} = packageRequest($packages, $pkg) or return;
    $packages->resolve_requested($packages->{rpmdb}, $state, no_flag_update => $otherOnly, keep_state => $otherOnly,
				 callback_choices => \&packageCallbackChoices);

    if ($base || $otherOnly) {
	foreach (keys %{$state->{selected}}) {
	    my $p = $packages->{depslist}[$_] or next;
	    #- if base is activated, propagate base flag to all selection.
	    $base and $p->set_flag_base;
	    $otherOnly and $otherOnly->{$_} = $state->{selected}{$_};
	}
    }
    1;
}

sub unselectPackage($$;$) {
    my ($packages, $pkg, $otherOnly) = @_;

    #- base package are not unselectable,
    #- and already unselected package are no more unselectable.
    $pkg->flag_base and return;
    $pkg->flag_selected or return;

    #- try to unwind selection (requested or required) by keeping
    #- rpmdb is right place.
    #TODO
    if ($otherOnly) {
	$otherOnly->{$pkg->id} = undef;
    } else {
	$pkg->set_flag_requested(0);
	$pkg->set_flag_required(0);

	#- clear state.
	my $state = $packages->{state} ||= {};
	$state->{selected} = { $pkg->id };
	$state->{requested} = {};
	$packages->resolve_requested($packages->{rpmdb}, $state, keep_state => 1);
    }
    1;
}
sub togglePackageSelection($$;$) {
    my ($packages, $pkg, $otherOnly) = @_;
    $pkg->flag_selected ? unselectPackage($packages, $pkg, $otherOnly) : selectPackage($packages, $pkg, 0, $otherOnly);
}
sub setPackageSelection($$$) {
    my ($packages, $pkg, $value) = @_;
    $value ? selectPackage($packages, $pkg) : unselectPackage($packages, $pkg);
}

sub unselectAllPackages($) {
    my ($packages) = @_;
    my %selected;
    foreach (@{$packages->{depslist}}) {
	unless ($_->flag_base || $_->flag_installed && $_->flag_selected) {
	    #- deselect all packages except base or packages that need to be upgraded.
	    $_->set_flag_requested(0);
	    $_->set_flag_required(0);
	    $selected{$_->id} = undef;
	}
    }
    if (%selected && %{$packages->{state} || {}}) {
	my $state = $packages->{state} ||= {};
	$state->{selected} = \%selected;
	$state->{requested} = {};
	$packages->resolve_requested($packages->{rpmdb}, $state, keep_state => 1);
    }
}
sub unselectAllPackagesIncludingUpgradable($) {
    my ($packages, $removeUpgradeFlag) = @_;
    my %selected;
    foreach (@{$packages->{depslist}}) {
	unless ($_->flag_base) {
	    $_->set_flag_requested(0);
	    $_->set_flag_required(0);
	    $selected{$_->id} = undef;
	}
    }
    if (%selected && %{$packages->{state} || {}}) {
	my $state = $packages->{state} ||= {};
	$state->{selected} = \%selected;
	$state->{requested} = {};
	$packages->resolve_requested($packages->{rpmdb}, $state, keep_state => 1);
    }
}

sub psUpdateHdlistsDeps {
    my ($prefix, $method, $packages) = @_;
    my ($good_hdlists_deps, $mediums) = (0, 0);

    #- check if current configuration is still up-to-date and do not need to be updated.
    foreach (values %{$packages->{mediums}}) {
	my $hdlistf = "$prefix/var/lib/urpmi/hdlist.$_->{fakemedium}.cz" . ($_->{hdlist} =~ /\.cz2/ && "2");
	my $synthesisf = "$prefix/var/lib/urpmi/synthesis.hdlist.$_->{fakemedium}.cz" . ($_->{hdlist} =~ /\.cz2/ && "2");
	-s $hdlistf == $_->{hdlist_size} && -s $synthesisf == $_->{synthesis_hdlist_size} and ++$good_hdlists_deps;
	++$mediums;
    }
    $good_hdlists_deps > 0 && $good_hdlists_deps == $mediums and return; #- nothing to do.

    #- at this point, this means partition has problably be reformatted and hdlists should be retrieved.
    install_any::useMedium($install_any::boot_medium);

    my $listf = install_any::getFile('Mandrake/base/hdlists') or die "no hdlists found";

    #- WARNING: this function should be kept in sync with functions
    #- psUsingHdlists and psUsingHdlist.
    #- it purpose it to update hdlist files on system to install.

    #- parse hdlist.list file.
    my $medium = 1;
    foreach (<$listf>) {
	chomp;
	s/\s*#.*$//;
	/^\s*$/ and next;
	m/^\s*(hdlist\S*\.cz2?)\s+(\S+)\s*(.*)$/ or die "invalid hdlist description \"$_\" in hdlists file";
	my ($hdlist, $rpmsdir, $descr) = ($1, $2, $3);

	#- copy hdlist file directly to $prefix/var/lib/urpmi, this will be used
	#- for getting header of package during installation or after by urpmi.
	my $fakemedium = "$descr ($method$medium)";
	my $newf = "$prefix/var/lib/urpmi/hdlist.$fakemedium.cz" . ($hdlist =~ /\.cz2/ && "2");
	-e $newf and do { unlink $newf or die "cannot remove $newf: $!"; };
	install_any::getAndSaveFile("Mandrake/base/$hdlist", $newf) or die "no $hdlist found";
	symlinkf $newf, "/tmp/$hdlist";
	install_any::getAndSaveFile("Mandrake/base/synthesis.$hdlist",
				    "$prefix/var/lib/urpmi/synthesis.hdlist.$fakemedium.cz" . ($hdlist =~ /\.cz2/ && "2"));
	++$medium;
    }

    #- this is necessary for urpmi.
    install_any::getAndSaveFile("Mandrake/base/$_", "$prefix/var/lib/urpmi/$_") foreach qw(rpmsrate);
}

sub psUsingHdlists {
    my ($prefix, $method) = @_;
    my $listf = install_any::getFile('Mandrake/base/hdlists') or die "no hdlists found";
    my $packages = new URPM;

    #- add additional fields used by DrakX.
    @{$packages}{qw(count mediums)} = (0, {});

    #- parse hdlists file.
    my $medium = 1;
    foreach (<$listf>) {
	chomp;
	s/\s*#.*$//;
	/^\s*$/ and next;
	m/^\s*(hdlist\S*\.cz2?)\s+(\S+)\s*(.*)$/ or die "invalid hdlist description \"$_\" in hdlists file";

	#- make sure the first medium is always selected!
	#- by default select all image.
	psUsingHdlist($prefix, $method, $packages, $1, $medium, $2, $3, 1);

	++$medium;
    }

    log::l("psUsingHdlists read " . scalar @{$packages->{depslist}} .
	   " headers on " . scalar keys(%{$packages->{mediums}}) . " hdlists");

    $packages;
}

sub psUsingHdlist {
    my ($prefix, $method, $packages, $hdlist, $medium, $rpmsdir, $descr, $selected, $fhdlist) = @_;
    my $fakemedium = "$descr ($method$medium)";
    my ($relocated, $ignored) = (0, 0);
    log::l("trying to read $hdlist for medium $medium");

    #- if the medium already exist, use it.
    $packages->{mediums}{$medium} and return $packages->{mediums}{$medium};

    my $m = $packages->{mediums}{$medium} = { hdlist     => $hdlist,
					      method     => $method,
					      medium     => $medium,
					      rpmsdir    => $rpmsdir, #- where is RPMS directory.
					      descr      => $descr,
					      fakemedium => $fakemedium,
#					      min        => $packages->{count},
#					      max        => -1, #- will be updated after reading current hdlist.
					      selected   => $selected, #- default value is only CD1, it is really the minimal.
					    };

    #- copy hdlist file directly to $prefix/var/lib/urpmi, this will be used
    #- for getting header of package during installation or after by urpmi.
    my $newf = "$prefix/var/lib/urpmi/hdlist.$fakemedium.cz" . ($hdlist =~ /\.cz2/ && "2");
    -e $newf and do { unlink $newf or die "cannot remove $newf: $!"; };
    install_any::getAndSaveFile($fhdlist || "Mandrake/base/$hdlist", $newf) or die "no $hdlist found";
    $m->{hdlist_size} = -s $newf; #- keep track of size for post-check.
    symlinkf $newf, "/tmp/$hdlist";

    #- if $fhdlist is defined, this is preferable not to try to find the associated synthesis.
    my $newsf = "$prefix/var/lib/urpmi/synthesis.hdlist.$fakemedium.cz" . ($hdlist =~ /\.cz2/ && "2");
    unless ($fhdlist) {
	#- copy existing synthesis file too.
	install_any::getAndSaveFile("Mandrake/base/synthesis.$hdlist", $newsf);
	$m->{synthesis_hdlist_size} = -s $newsf; #- keep track of size for post-check.
	-s $newsf > 0 or unlink $newsf;
    }

    #- avoid using more than one medium if Cd is not ejectable.
    #- but keep all medium here so that urpmi has the whole set.
    $method eq 'cdrom' && $medium > 1 && !common::usingRamdisk() and return;

    #- parse synthesis (if available) of directly hdlist (with packing).
    if (-s $newsf) {
	($m->{start}, $m->{end}) = $packages->parse_synthesis($newsf);
    } elsif (-s $newf) {
	($m->{start}, $m->{end}) = $packages->parse_hdlist($newf, 1);
    } else {
	die "fatal: no hdlist nor synthesis to read for $fakemedium";
    }
    $m->{start} > $m->{end} and die "fatal: nothing read in hdlist or synthesis for $fakemedium";
    log::l("read " . ($m->{end} - $m->{start} + 1) . " packages in $hdlist");
    $m;
}

#OBSOLETED TODO
sub getOtherDeps($$) {
    return; #TODO
}

#OBSOLETED TODO
sub getDeps {
    return; #TODO
}

#OBSOLETED TODO
sub getProvides($) {
    return; #TODO
}

sub read_rpmsrate {
    my ($packages, $f) = @_;
    my $line_nb = 0;
    my $fatal_error;
    my (@l);
    while (<$f>) {
	$line_nb++;
	/\t/ and die "tabulations not allowed at line $line_nb\n";
	s/#.*//; # comments

	my ($indent, $data) = /(\s*)(.*)/;
	next if !$data; # skip empty lines

	@l = grep { $_->[0] < length $indent } @l;

	my @m = @l ? @{$l[$#l][1]} : ();
	my ($t, $flag, @l2);
	while ($data =~ 
	       /^((
                   [1-5]
                   |
                   (?:            (?: !\s*)? [0-9A-Z_]+(?:".*?")?)
                   (?: \s*\|\|\s* (?: !\s*)? [0-9A-Z_]+(?:".*?")?)*
                  )
                  (?:\s+|$)
                 )(.*)/x) { #@")) {
	    ($t, $flag, $data) = ($1,$2,$3);
	    while ($flag =~ s,^\s*(("[^"]*"|[^"\s]*)*)\s+,$1,) {}
	    my $ok = 0;
	    $flag = join('||', grep { 
		if (my ($inv, $p) = /^(!)?HW"(.*)"/) {
		    ($inv xor detect_devices::matching_desc($p)) and $ok = 1;
		    0;
		} else {
		    1;
		}
	    } split '\|\|', $flag);
	    push @m, $ok ? 'TRUE' : $flag || 'FALSE';
	    push @l2, [ length $indent, [ @m ] ];
	    $indent .= $t;
	}
	if ($data) {
	    # has packages on same line
	    my ($rate) = grep { /^\d$/ } @m or die sprintf qq(missing rate for "%s" at line %d (flags are %s)\n), $data, $line_nb, join('&&', @m);
	    foreach (split ' ', $data) {
		if ($packages) {
		    my $p = packageByName($packages, $_) or next;
		    my @m2 = map { if_(/locales-(.*)/, qq(LOCALES"$1")) } $p->requires_nosense;
		    my @m3 = ((grep { !/^\d$/ } @m), @m2);
		    if (member('INSTALL', @m3)) {
			member('NOCOPY', @m3) or push @{$packages->{needToCopy} ||= []}, $_;
			next; #- don't need to put INSTALL flag for a package.
		    }
		    if ($p->rate) {
			my @m4 = $p->rflags;
			if (@m3 > 1 || @m4 > 1) {
			    log::l("can't handle complicate flags for packages appearing twice ($_)");
			    $fatal_error++;
			}
			log::l("package $_ appearing twice with different rates ($rate != ".$p->rate.")") if $rate != $p->rate;
			$p->set_rate($rate);
			$p->set_rflags("$m3[0]||$m4[0]");
		    } else {
			$p->set_rate($rate);
			$p->set_rflags(@m3);
		    }
		} else {
		    print "$_ = ", join(" && ", @m), "\n";
		}
	    }
	    push @l, @l2;
	} else {
	    push @l, [ $l2[0][0], $l2[$#l2][1] ];
	}
    }
    $fatal_error and die "$fatal_error fatal errors in rpmsrate";
}

sub readCompssUsers {
    my ($meta_class) = @_;
    my (%compssUsers, @sorted, $l);

    my $file = 'Mandrake/base/compssUsers';
    my $f = $meta_class && install_any::getFile("$file.$meta_class") || install_any::getFile($file) or die "can't find $file";
    local $_;
    while (<$f>) {
	/^\s*$/ || /^#/ and next;
	s/#.*//;

	if (/^(\S.*)/) {
	    my $verbatim = $_;
	    my ($icon, $descr, $path);
	    /^(.*?)\s*\[path=(.*?)\](.*)/  and $_ = "$1$3", $path  = $2;
	    /^(.*?)\s*\[icon=(.*?)\](.*)/  and $_ = "$1$3", $icon  = $2;
	    /^(.*?)\s*\[descr=(.*?)\](.*)/ and $_ = "$1$3", $descr = $2;
	    $compssUsers{"$path|$_"} = { label => $_, verbatim => $verbatim, path => $path, icons => $icon, descr => $descr, flags => $l=[] };
	    push @sorted, "$path|$_";
	} elsif (/^\s+(.*?)\s*$/) {
	    push @$l, $1;
	}
    }
    \%compssUsers, \@sorted;
}
sub saveCompssUsers {
    my ($prefix, $packages, $compssUsers, $sorted) = @_;
    my $flat;
    foreach (@$sorted) {
	my @fl = @{$compssUsers->{$_}{flags}};
	my %fl; $fl{$_} = 1 foreach @fl;
	$flat .= $compssUsers->{$_}{verbatim};
	foreach my $p (@{$packages->{depslist}}) {
	    my @flags = $p->rflags;
	    if ($p->rate && grep { grep { !/^!/ && $fl{$_} } split('\|\|') } @flags) {
		$flat .= sprintf "\t%d %s\n", $p->rate, $p->name;
	    }
	}
    }
    output "$prefix/var/lib/urpmi/compssUsers.flat", $flat;
}

sub setSelectedFromCompssList {
    my ($packages, $compssUsersChoice, $min_level, $max_size) = @_;
    $compssUsersChoice->{TRUE} = 1; #- ensure TRUE is set
    my $nb = selectedSize($packages);
    foreach my $p (sort { $b->rate <=> $a->rate } @{$packages->{depslist}}) {
	my @flags = $p->rflags;
	next if 
	  !$p->rate || $p->rate < $min_level || 
	  grep { !grep { /^!(.*)/ ? !$compssUsersChoice->{$1} : $compssUsersChoice->{$_} } split('\|\|') } @flags;

	#- determine the packages that will be selected when
	#- selecting $p. the packages are not selected.
	my $state = $packages->{state} ||= {};
	$state->{selected} = {};
	$state->{requested} = packageRequest($packages, $p) || {};

	$packages->resolve_requested($packages->{rpmdb}, $state, no_flag_update => 1,
				     callback_choices => \&packageCallbackChoices);

	#- this enable an incremental total size.
	my $old_nb = $nb;
	foreach (keys %{$state->{selected}}) {
	    my $p = $packages->{depslist}[$_] or next;
	    $nb += $p->size;
	}
	if ($max_size && $nb > $max_size) {
	    $nb = $old_nb;
	    $min_level = $p->rate;
	    $state->{requested} = {}; #- ensure no newer package will be selected.
	    $packages->resolve_requested($packages->{rpmdb}, $state, keep_state => 1); #- FIXME INCOMPLETE TODO
	    last;
	}

	#- do the effective selection (was not done due to no_flag_update option used.
	foreach (keys %{$state->{selected}}) {
	    my $pkg = $packages->{depslist}[$_];
	    $state->{selected}{$_} ? $pkg->set_flag_requested : $pkg->set_flag_required;
	}
    }
    log::l("setSelectedFromCompssList: reached size ", formatXiB($nb), ", up to indice $min_level (less than ", formatXiB($max_size), ")");
    log::l("setSelectedFromCompssList: ", join(" ", sort map { $_->name } grep { $_->flag_selected } @{$packages->{depslist}}));
    $min_level;
}

#- usefull to know the size it would take for a given min_level/max_size
#- just saves the selected packages, call setSelectedFromCompssList and restores the selected packages
sub saveSelected {
    my ($packages) = @_;
    my $state = delete $packages->{state};
    my @l = @{$packages->{depslist}};


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