package urpm::select; # $Id: select.pm 258637 2009-07-28 13:14:16Z cfergeau $ use strict; use urpm::msg; use urpm::util; use urpm::sys; use URPM; my $default_priority_list = 'rpm,perl-URPM,perl-MDV-Distribconf,urpmi,meta-task,glibc,aria2'; my @priority_list = split(',', $default_priority_list); my $evr_re = qr/[^\-]*-[^\-]*\.[^\.\-]*$/; =head1 NAME urpm::select - package selection routines for urpmi =head1 SYNOPSIS =head1 DESCRIPTION =over =cut sub add_packages_to_priority_upgrade_list { @priority_list = uniq(@priority_list, @_); } sub set_priority_upgrade_option { my ($urpm, $previous) = @_; exists $urpm->{options}{'priority-upgrade'} and return; # comma-separated list of packages that should be installed first, # and that trigger an urpmi restart my $list = join(',', @priority_list); if ($previous) { if ($previous eq $list) { $list = ''; $urpm->{log}(N("urpmi was restarted, and the list of priority packages did not change")); } else { $urpm->{log}(N("urpmi was restarted, and the list of priority packages did change: %s vs %s", $previous, $list)); } } $urpm->{options}{'priority-upgrade'} = $list; } sub _findindeps { my ($urpm, $found, $qv, $v, $caseinsensitive, $src) = @_; foreach (keys %{$urpm->{provides}}) { #- search through provides to find if a provide matches this one; #- but manage choices correctly (as a provides may be virtual or #- defined several times). /$qv/ || !$caseinsensitive && /$qv/i or next; my @list = grep { defined $_ } map { my $pkg = $_; $pkg && ($src ? $pkg->arch eq 'src' : $pkg->arch ne 'src') ? $pkg->id : undef; } $urpm->packages_providing($_); @list > 0 and push @{$found->{$v}}, join '|', @list; } } sub pkg_in_searchmedia { my ($urpm, $pkg) = @_; foreach my $medium (grep { $_->{searchmedia} } @{$urpm->{media}}) { $medium->{start} <= $pkg->id && $medium->{end} >= $pkg->id and return 1; } 0; } sub searchmedia_idlist { my ($urpm) = @_; $urpm->{searchmedia} && [ map { $_->{start} .. $_->{end} } grep { $_->{searchmedia} } @{$urpm->{media}} ]; } sub build_listid_ { my ($urpm) = @_; $urpm->build_listid(undef, undef, searchmedia_idlist($urpm)); } #- search packages registered by their names by storing their ids into the $packages hash. #- Recognized options: #- all #- caseinsensitive #- fuzzy #- no_substring #- src #- use_provides #- #- side-effects: $packages, flag_skip sub search_packages { my ($urpm, $packages, $names, %options) = @_; my ($name2ids, $result) = _search_packages($urpm, $names, %options) or return; foreach my $v (@$names) { my @ids = split /\|/, $name2ids->{$v}; #- in case we have a substring match, we want individual selection (for urpmq --fuzzy) $packages->{$_} = 1 foreach $result eq 'substring' || $options{all} ? @ids : $name2ids->{$v}; foreach (@ids) { my $pkg = $urpm->{depslist}[$_] or next; $urpm->{debug} and $urpm->{debug}("search_packages: found " . $pkg->fullname . " matching $v"); $pkg->set_flag_skip(0); #- reset skip flag as manually selected. } } $result; } #- side-effects: none sub _search_packages { my ($urpm, $names, %options) = @_; my (%exact, %exact_a, %exact_ra, %found, %foundi); foreach my $v (@$names) { my $qv = quotemeta $v; my @found; $qv = '(?i)' . $qv if $options{caseinsensitive}; if (!$options{fuzzy}) { #- try to search through provides. if (my @l = map { $_ && ($options{src} ? $_->arch eq 'src' : $_->is_arch_compat) && ($options{use_provides} || $_->name eq $v) && defined($_->id) && (!$urpm->{searchmedia} || pkg_in_searchmedia($urpm, $_)) ? $_ : @{[]}; } $urpm->packages_providing($v)) { $exact{$v} = _search_packages_keep_best($v, \@l, $options{all}); next; } } elsif ($options{use_provides}) { _findindeps($urpm, \%found, $qv, $v, $options{caseinsensitive}, $options{src}); } foreach my $id (build_listid_($urpm)) { my $pkg = $urpm->{depslist}[$id]; ($options{src} ? $pkg->arch eq 'src' : $pkg->is_arch_compat) or next; my $pack_name = $pkg->name; my $pack_ra = $pack_name . '-' . $pkg->version; my $pack_a = "$pack_ra-" . $pkg->release; my $pack = "$pack_a." . $pkg->arch; if (!$options{fuzzy}) { if ($pack eq $v) { $exact{$v} = $id; next; } elsif ($pack_a eq $v) { push @{$exact_a{$v}}, $id; next; } elsif ($pack_ra eq $v || $options{src} && $pack_name eq $v) { push @{$exact_ra{$v}}, $id; next; } } if ($pack =~ /$qv/) { next if member($pack, @found); push @found, $pack; push @{$found{$v}}, $id; } next if !$options{caseinsensitive}; if ($pack =~ /$qv/i) { next if member($pack, @found); push @found, $pack; push @{$foundi{$v}}, $id; } } } my $result = 1; my %name2ids; foreach my $v (@$names) { if (defined $exact{$v}) { $name2ids{$v} = $exact{$v}; } else { #- at this level, we need to search the best package given for a given name, #- always prefer already found package. my %l; foreach (@{$exact_a{$v} || $exact_ra{$v} || $found{$v} || $foundi{$v} || []}) { my $pkg = $urpm->{depslist}[$_]; push @{$l{$pkg->name}}, $pkg; } #- non-exact match? my $is_substring_match = !@{$exact_a{$v} || $exact_ra{$v} || []}; if (values(%l) == 0 || !$options{all} && (values(%l) > 1 || $is_substring_match && $options{no_substring})) { $urpm->{error}(N("No package named %s", $v)); values(%l) != 0 and $urpm->{error}( N("The following packages contain %s: %s", $v, urpm::util::formatList(4, sort { $a cmp $b } keys %l)) . "\n" . N("You should use \"-a\" to use all of them") ); $result = 0; } else { $is_substring_match and $result = 'substring'; $name2ids{$v} = join('|', map { my $best; foreach (@$_) { if ($best && $best != $_) { $_->compare_pkg($best) > 0 and $best = $_; } else { $best = $_; } } map { $_->id } grep { $_->fullname eq $best->fullname } @$_; } values %l); } } } #- return 0 if error, 'substring' if fuzzy match, 1 if ok \%name2ids, $result; } #- side-effects: none sub _search_packages_keep_best { my ($name, $pkgs, $all) = @_; #- find the lowest value of is_arch_compat my ($noarch, $arch) = partition { $_->arch eq 'noarch' } @$pkgs; my %compats; push @{$compats{$_->is_arch_compat}}, $_ foreach @$arch; delete $compats{0}; #- means not compatible #- if there are pkgs matching arch, prefer them if (%compats && !$all) { my $best_arch = min(keys %compats); %compats = ($best_arch => $compats{$best_arch}); } my @l = %compats ? (@$noarch, map { @$_ } values %compats) : @$pkgs; #- we assume that if there is at least one package providing #- the resource exactly, this should be the best one; but we #- first check if one of the packages has the same name as searched. if (my @l2 = grep { $_->name eq $name } @l) { @l = @l2; } join('|', map { $_->id } @l); } #- Resolves dependencies between requested packages (and auto selection if any). #- handles parallel option if any. #- The return value is true if program should be restarted (in order to take #- care of important packages being upgraded (priority upgrades) #- %options : #- auto_select #- install_src #- priority_upgrade #- %options passed to ->resolve_requested: #- callback_choices #- keep #- nodeps #- no_suggests sub resolve_dependencies { #- $state->{selected} will contain the selection of packages to be #- installed or upgraded my ($urpm, $state, $requested, %options) = @_; my $need_restart; if ($urpm->{parallel_handler}) { require urpm::parallel; #- help perl_checker; urpm::parallel::resolve_dependencies($urpm, $state, $requested, %options); } else { my $db = urpm::db_open_or_die_($urpm); my $sig_handler = sub { undef $db; exit 3 }; local $SIG{INT} = $sig_handler; local $SIG{QUIT} = $sig_handler; #- auto select package for upgrading the distribution. if ($options{auto_select}) { $urpm->request_packages_to_upgrade($db, $state, $requested, requested => undef, $urpm->{searchmedia} ? (idlist => searchmedia_idlist($urpm)) : (), ); } if ($options{priority_upgrade} && !$urpm->{env_rpmdb}) { #- first check if a priority_upgrade package is requested #- (it should catch all occurences in --auto-select mode) #- (nb: a package "foo" may appear twice, and only one will be set flag_upgrade) $need_restart = resolve_priority_upgrades_after_auto_select($urpm, $db, $state, $requested, %options); } if (!$need_restart) { $urpm->resolve_requested($db, $state, $requested, %options); #- now check if a priority_upgrade package has been required #- by a requested package if (my @l = grep { $state->{selected}{$_->id} } _priority_upgrade_pkgs($urpm, $options{priority_upgrade})) { $need_restart = _resolve_priority_upgrades($urpm, $db, $state, $state->{selected}, \@l, %options); } } } $need_restart; } sub select_replacepkgs { my ($urpm, $state, $requested) = @_; my $db = urpm::db_open_or_die_($urpm); foreach my $id (keys %$requested) { my @pkgs = $urpm->find_candidate_packages_($id); if (my ($pkg) = grep { URPM::is_package_installed($db, $_) } @pkgs) { $urpm->{debug_URPM}("selecting replacepkg " . $pkg->fullname) if $urpm->{debug_URPM}; $pkg->set_flag_requested; $state->{selected}{$pkg->id} = undef; } else { $urpm->{fatal}(1, N("found package(s) %s in urpmi db, but none are installed", join(', ', map { scalar($_->fullname) } @pkgs))); } } } sub _priority_upgrade_pkgs { my ($urpm, $priority_upgrade_string) = @_; map { $urpm->packages_by_name($_); } split(/,/, $priority_upgrade_string); } sub resolve_priority_upgrades_after_auto_select { my ($urpm, $db, $state, $selected, %options) = @_; my $need_restart; if (my @l = grep { $_->flag_upgrade } _priority_upgrade_pkgs($urpm, $options{priority_upgrade})) { $need_restart = _resolve_priority_upgrades($urpm, $db, $state, $selected, \@l, %options); } $need_restart; } sub _resolve_priority_upgrades { my ($urpm, $db, $state, $selected, $priority_pkgs, %options) = @_; my ($need_restart, %priority_state); my %priority_requested = map { $_->id => undef } @$priority_pkgs; $urpm->resolve_requested($db, \%priority_state, \%priority_requested, %options); if (grep { ! exists $priority_state{selected}{$_} } keys %priority_requested) { #- some packages which were selected previously have not been selected, strange! } elsif (grep { ! exists $priority_state{selected}{$_} } keys %$selected) { #- there are other packages to install after this priority transaction. %$state = %priority_state; $need_restart = 1; } $need_restart; } sub cooked_prefer { my ($urpm, $cmdline_prefer) = @_; $urpm->{prefer_regexps} ||= [ map { m!^/(.*)/$! ? "($1)" : '^' . quotemeta($_) . '$'; } map { @$_ } urpm::sys::get_packages_list($urpm->{prefer_list}, $cmdline_prefer), urpm::sys::get_packages_list($urpm->{prefer_vendor_list}) ]; @{$urpm->{prefer_regexps}}; } sub get_preferred { my ($urpm, $choices, $cmdline_prefer) = @_; my @prefer; my @l = @$choices; foreach my $re (cooked_prefer($urpm, $cmdline_prefer)) { my ($prefer, $other) = partition { $_->name =~ $re } @l; push @prefer, @$prefer; @l = @$other; if (@$prefer) { my $prefer_s = join(',', map { $_->name } @$prefer); my $other_s = join(',', map { $_->name } @l); $urpm->{log}("preferring $prefer_s over $other_s"); } } #- only keep the best prefered #- then put the other prefered packages first my $best = shift @prefer; $best ? [$best] : [], [@prefer, @l]; } my $fullname2name_re = qr/^(.*)-[^\-]*-[^\-]*\.[^\.\-]*$/; #- find packages to remove. #- options: #- callback_base #- callback_fuzzy #- callback_notfound #- force #- matches #- test sub find_packages_to_remove { my ($urpm, $state, $l, %options) = @_; if ($urpm->{parallel_handler}) { #- invoke parallel finder. $urpm->{parallel_handler}->parallel_find_remove($urpm, $state, $l, %options, find_packages_to_remove => 1); } else { my $db = urpm::db_open_or_die_($urpm); my (@m, @notfound); if (!$options{matches}) { foreach (@$l) { my ($n, $found); $db->traverse_tag('nvra', [ $_ ], sub { my ($p) = @_; $urpm->resolve_rejected($db, $state, $p, removed => 1); push @m, scalar $p->fullname; $found = 1; }); $found and next; push @notfound, $_; } if (!$options{force} && @notfound && @$l > 1) { $options{callback_notfound} && $options{callback_notfound}->($urpm, @notfound) or return (); } } if ($options{matches} || @notfound) { my $match = join "|", map { quotemeta } @$l; my $qmatch = qr/$match/; #- reset what has been already found. %$state = (); @m = (); $urpm->{log}(qq(going through installed packages looking for "$match"...)); #- search for packages that match, and perform closure again. $db->traverse(sub { my ($p) = @_; my $f = scalar $p->fullname; $f =~ $qmatch or return; $urpm->resolve_rejected($db, $state, $p, removed => 1); push @m, $f; }); $urpm->{log}("...done, packages found [" . join(' ', @m) . "]"); if (!$options{force} && @notfound) { if (@m) { $options{callback_fuzzy} && $options{callback_fuzzy}->($urpm, @$l > 1 ? $match : $l->[0], @m) or return (); } else { $options{callback_notfound} && $options{callback_notfound}->($urpm, @notfound) or return (); } } if (!@m) { $options{callback_notfound} && $options{callback_notfound}->($urpm, @$l) or return (); } } #- check if something needs to be removed. find_removed_from_basesystem($urpm, $db, $state, $options{callback_base}) or return (); } removed_packages($urpm, $state); } sub find_removed_from_basesystem { my ($urpm, $db, $state, $callback_base) = @_; $callback_base or return 1; if (my @l = _prohibit_packages_that_would_be_removed($urpm, $db, $state)) { $callback_base->($urpm, @l); } else { 1; } } sub _prohibit_packages_that_would_be_removed { my ($urpm, $db, $state) = @_; my @to_remove = removed_packages($urpm, $state) or return 1; my @dont_remove = ('basesystem', 'basesystem-minimal', split /,\s*/, $urpm->{global_config}{'prohibit-remove'}); my (@base_fn, %base); $db->traverse_tag('whatprovides', \@dont_remove, sub { my ($p) = @_; $base{$p->name} = 1; push @base_fn, scalar $p->fullname; }); grep { ! grep { $base{$_} } rejected_unsatisfied($state, $_); } intersection(\@to_remove, \@base_fn); } #- misc functions to help finding ask_unselect and ask_remove elements with their reasons translated. sub unselected_packages { my (undef, $state) = @_; grep { $state->{rejected}{$_}{backtrack} } keys %{$state->{rejected} || {}}; } #- misc functions to help finding ask_unselect and ask_remove elements with their reasons translated. sub already_installed { my ($state) = @_; uniq(map { scalar $_->fullname } values %{$state->{rejected_already_installed} || {}}); } sub translate_already_installed { my ($state) = @_; my @l = already_installed($state) or return; @l == 1 ? N("Package %s is already installed", join(', ', @l)) : N("Packages %s are already installed", join(', ', @l)); } sub translate_why_unselected { my ($urpm, $state, @fullnames) = @_; join("\n", map { translate_why_unselected_one($urpm, $state, $_) } sort @fullnames); } sub translate_why_unselected_one { my ($urpm, $state, $fullname) = @_; my $obj = $state->{rejected}{$fullname}; my $rb = $obj->{backtrack}; my @unsatisfied = @{$rb->{unsatisfied} || []}; my @conflicts = @{$rb->{conflicts} || []}; my $s = join ", ", ( (map { N("due to conflicts with %s", $_) } @conflicts), (map { N("due to unsatisfied %s", $_) } uniq(map { #- XXX in theory we shouldn't need this, dependencies (and not ids) should #- already be present in @unsatisfied. But with biarch packages this is #- not always the case. /\D/ ? $_ : scalar($urpm->{depslist}[$_]->fullname); } @unsatisfied)), $rb->{promote} && !$rb->{keep} ? N("trying to promote %s", join(", ", @{$rb->{promote}})) : (), $rb->{keep} ? N("in order to keep %s", join(", ", @{$rb->{keep}})) : (), ); $fullname . ($s ? " ($s)" : ''); } sub selected_packages_providing { my ($urpm, $state, $name) = @_; map { $urpm->{depslist}[$_] } grep { $state->{selected}{$_} } keys %{$urpm->{provides}{$name} || {}}; } sub was_pkg_name_installed { my ($rejected, $name) = @_; foreach (keys %$rejected) { /^\Q$name\E-$evr_re/ or next; $rejected->{$_}{obsoleted} and return 1; } 0; } sub removed_packages { my (undef, $state) = @_; grep { $state->{rejected}{$_}{removed} && !$state->{rejected}{$_}{obsoleted}; } keys %{$state->{rejected} || {}}; } sub rejected_closure { my ($state, $fullname) = @_; $state->{rejected} && $state->{rejected}{$fullname} && $state->{rejected}{$fullname}{closure}; } sub rejected_unsatisfied { my ($state, $fullname) = @_; my $closure = rejected_closure($state, $fullname) or return; map { $_ ? @$_ : () } map { $_->{unsatisfied} } values %$closure; } sub conflicting_packages_msg_ { my ($removed_packages_msgs) = @_; my $list = join("\n", @$removed_packages_msgs) or return; @$removed_packages_msgs == 1 ? N("The following package has to be removed for others to be upgraded:\n%s", $list) : N("The following packages have to be removed for others to be upgraded:\n%s", $list); } sub conflicting_packages_msg { my ($urpm, $state) = @_; conflicting_packages_msg_([ removed_packages_msgs($urpm, $state) ]); } sub removed_packages_msgs { my ($urpm, $state) = @_; map { translate_why_removed_one($urpm, $state, $_) } sort(removed_packages($urpm, $state)); } sub translate_why_removed { my ($urpm, $state, @fullnames) = @_; join("\n", map { translate_why_removed_one($urpm, $state, $_) } sort @fullnames); } sub translate_why_removed_one { my ($urpm, $state, $fullname) = @_; my $closure = rejected_closure($state, $fullname) or return $fullname; my ($from) = keys %$closure; my ($whyk) = keys %{$closure->{$from}}; my $whyv = $closure->{$from}{$whyk}; my $frompkg = $urpm->search($from, strict_fullname => 1); my $s = do { if ($whyk =~ /old_requested/) { N("in order to install %s", $frompkg ? scalar $frompkg->fullname : $from); } elsif ($whyk =~ /unsatisfied/) { join(",\n ", map { if (/([^\[\s]*)(?:\[\*\])?(?:\[|\s+)([^\]]*)\]?$/ && $2 ne '*') { N("due to unsatisfied %s", "$1 $2"); } else { N("due to missing %s", $_); } } @$whyv); } elsif ($whyk =~ /conflicts/) { N("due to conflicts with %s", $whyv); } else { $whyk; } }; #- now insert the reason if available. $fullname . ($s ? "\n ($s)" : ''); } sub _libdb_version { $_[0] =~ /libdb-(\S+)\.so/ ? version->new("v$1") : () } sub _rpm_version() { `rpm --version` =~ /version ([0-9.]+)$/ ? version->new("v$1") : () } sub should_we_migrate_back_rpmdb_db_version { my ($urpm, $state) = @_; my ($pkg) = urpm::select::selected_packages_providing($urpm, $state, 'rpm') or return; urpm::select::was_pkg_name_installed($state->{rejected}, 'rpm') and return; my ($rooted_librpm_version) = map { _libdb_version($_) } $pkg->requires; # perl_checker: $self = revision my $rooted_rpm_version = version->new("v" . $pkg->version); # perl_checker: $self = revision my $urpmi_librpm_version = _libdb_version(scalar `ldd /bin/rpm`); # perl_checker: $self = revision if (_rpm_version() ge v4.9.0) { # perl_checker: $self = revision if ($rooted_rpm_version && $rooted_rpm_version ge v4.9) { $urpm->{debug} and $urpm->{debug}("chrooted db version used by librpm is at least as good as non-rooted one"); } else { $urpm->{need_migrate_rpmdb} = '4.8'; return 1; } } elsif ($urpmi_librpm_version ge v4.6) { if ($rooted_librpm_version && $rooted_librpm_version ge v4.6) { $urpm->{debug} and $urpm->{debug}("chrooted db version used by librpm is at least as good as non-rooted one"); } else { foreach my $bin ('db_dump', 'db42_load') { urpm::sys::whereis_binary($bin) or $urpm->{error}("can not migrate rpm db from Hash version 9 to Hash version 8 without $bin"), return; } $urpm->{need_migrate_rpmdb} = '4.6'; return 1; } } 0; } 1; =back =cut