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package urpm::parallel_ssh;
#- parallel copy
sub parallel_register_rpms {
my ($parallel, $urpm, @files) = @_;
foreach (keys %{$parallel->{nodes}}) {
my $sources = join ' ', map { "'$_'" } @files;
$urpm->{log}("parallel_ssh: scp $sources $_:$urpm->{cachedir}/rpms");
system "scp $sources $_:$urpm->{cachedir}/rpms";
$? == 0 or $urpm->{fatal}(1, urpm::N("scp failed on host %s", $_));
}
#- keep trace of direct files.
foreach (@files) {
my $basename = (/^.*\/([^\/]*)$/ && $1) || $_;
$parallel->{line} .= "$urpm->{cachedir}/rpms/$basename";
}
}
#- parallel find_packages_to_remove
sub parallel_find_remove {
my ($parallel, $urpm, $state, $l, %options) = @_;
my ($test, $node, %bad_nodes, %base_to_remove);
local (*F, $_);
#- keep in mind if the previous selection is still active, it avoid
#- to re-start urpme --test on each node.
if ($options{find_packages_to_remove}) {
delete $state->{rejected};
delete $urpm->{error_remove};
$test = '--test ';
} else {
@{$urpm->{error_remove} || []} and return @{$urpm->{error_remove}};
#- no need to restart what has been started before.
$options{test} and return keys %{$state->{rejected}};
$test = '';
}
#- now try an iteration of urpme.
foreach my $node (keys %{$parallel->{nodes}}) {
$urpm->{log}("parallel_ssh: ssh $node urpme --no-locales --auto $test".(join ' ', map { "'$_'" } @$l));
open F, "ssh 2>&1 $node urpme --no-locales --auto $test".(join ' ', map { "'$_'" } @$l)." |";
while (defined ($_ = <F>)) {
chomp;
/^\s*$/ and next;
/Checking to remove the following packages/ and next;
/To satisfy dependencies, the following packages are going to be removed/
and $urpm->{fatal}(1, ("node %s has bad version of urpme, please upgrade", $node));
if (/unknown packages?:? (.*)/) {
$options{callback_notfound} and $options{callback_notfound}->($urpm, split ", ", $1)
or delete $state->{rejected}, last;
} elsif (/The following packages contain ([^:]*): (.*)/) {
$options{callback_fuzzy} and $options{callback_fuzzy}->($urpm, $1, split " ", $2)
or delete $state->{rejected}, last;
} elsif (/removing package (.*) will break your system/) {
$base_to_remove{$1} = undef;
} elsif (/Removing failed/) {
$bad_nodes{$node} = [];
} else {
if (exists $bad_nodes{$node}) {
/^\s+(.*)/ and push @{$bad_nodes{$node}}, $1;
} else {
$state->{rejected}{$_}{removed} = 1;
$state->{rejected}{$_}{nodes}{$node} = undef;
}
}
}
close F;
}
#- check base, which has been delayed until there.
$options{callback_base} and %base_to_remove and $options{callback_base}->($urpm, keys %base_to_remove)
|| return ();
#- build error list contains all the error returned by each node.
$urpm->{error_remove} = [];
foreach (keys %bad_nodes) {
my $msg = urpm::N("on node %s", $_);
foreach (@{$bad_nodes{$_}}) {
push @{$urpm->{error_remove}}, "$msg, $_";
}
}
keys %{$state->{rejected}};
}
#- parallel resolve_dependencies
sub parallel_resolve_dependencies {
my ($parallel, $synthesis, $urpm, $state, $requested, %options) = @_;
#- first propagate the synthesis file to all machine.
foreach (keys %{$parallel->{nodes}}) {
$urpm->{log}("parallel_ssh: scp -q '$synthesis' '$_:$synthesis'");
system "scp -q '$synthesis' '$_:$synthesis'";
$? == 0 or $urpm->{fatal}(1, urpm::N("scp failed on host %s", $_));
}
$parallel->{synthesis} = $synthesis;
#- compute command line of urpm? tools.
my $line = $parallel->{line} . ($options{auto_select} ? ' --auto-select' : '');
foreach (keys %$requested) {
if (/\|/) {
#- taken from URPM::Resolve to filter out choices, not complete though.
my $packages = $urpm->find_candidate_packages($_);
foreach (values %$packages) {
my ($best_requested, $best);
foreach (@$_) {
exists $state->{selected}{$_->id} and $best_requested = $_, last;
if ($best_requested) {
if ($best_requested && $best_requested != $_) {
$_->compare_pkg($best_requested) > 0 and $best_requested = $_;
} else {
$best_requested = $_;
}
} elsif ($best && $best != $_) {
$_->compare_pkg($best) > 0 and $best = $_;
} else {
$best = $_;
}
}
$_ = $best_requested || $best;
}
#- simplified choices resolution.
my $choice = $options{callback_choices}->($urpm, undef, $state, [ values %$packages ]);
$choice and $line .= ' '.$choice->fullname;
} else {
my $pkg = $urpm->{depslist}[$_] or next;
$line .= ' '.$pkg->fullname;
}
}
#- execute urpmq to determine packages to install.
my ($node, $cont, %chosen);
local (*F, $_);
do {
$cont = 0; #- prepare to stop iteration.
#- the following state should be cleaned for each iteration.
delete $state->{selected};
#- now try an iteration of urpmq.
foreach my $node (keys %{$parallel->{nodes}}) {
$urpm->{log}("parallel_ssh: ssh $node urpmq --synthesis $synthesis -fduc $line ".join(' ', keys %chosen));
open F, "ssh $node urpmq --synthesis $synthesis -fduc $line ".join(' ', keys %chosen)." |";
while (defined ($_ = <F>)) {
chomp;
if (my ($action, $what) = /^\@([^\@]*)\@(.*)/) {
if ($action eq 'removing') {
$state->{rejected}{$what}{removed} = 1;
$state->{rejected}{$what}{nodes}{$node} = undef;
}
} elsif (/\|/) {
#- distant urpmq returned a choices, check if it has already been chosen
#- or continue iteration to make sure no more choices are left.
$cont ||= 1; #- invalid transitory state (still choices is strange here if next sentence is not executed).
unless (grep { exists $chosen{$_} } split '\|', $_) {
my $choice = $options{callback_choices}->($urpm, undef, $state, [ map { $urpm->search($_) } split '\|', $_ ]);
if ($choice) {
$chosen{scalar $choice->fullname} = $choice;
#- it has not yet been chosen so need to ask user.
$cont = 2;
} else {
#- no choices resolved, so forget it (no choices means no choices at all).
$cont = 0;
}
}
} else {
my $pkg = $urpm->search($_) or next; #TODO
$state->{selected}{$pkg->id}{$node} = $_;
}
}
close F or $urpm->{fatal}(1, urpm::N("host %s does not have a good version of urpmi", $node));
}
#- check for internal error of resolution.
$cont == 1 and die "internal distant urpmq error on choice not taken";
} while ($cont);
#- keep trace of what has been chosen finally (if any).
$parallel->{line} .= "$line ".join(' ', keys %chosen);
}
#- parallel install.
sub parallel_install {
my ($parallel, $urpm, $remove, $install, $upgrade, %options) = @_;
foreach (keys %{$parallel->{nodes}}) {
my $sources = join ' ', map { "'$_'" } values %$install, values %$upgrade;
$urpm->{log}("parallel_ssh: scp $sources $_:$urpm->{cachedir}/rpms");
system "scp $sources $_:$urpm->{cachedir}/rpms";
$? == 0 or $urpm->{fatal}(1, urpm::N("scp failed on host %s", $_));
}
my %bad_nodes;
foreach my $node (keys %{$parallel->{nodes}}) {
local (*F, $_);
$urpm->{log}("parallel_ssh: ssh $node urpmi --pre-clean --no-locales --test --no-verify-rpm --auto --synthesis $parallel->{synthesis} $parallel->{line}");
open F, "ssh $node urpmi --pre-clean --no-locales --test --no-verify-rpm --auto --synthesis $parallel->{synthesis} $parallel->{line} |";
while ($_ = <F>) {
$bad_nodes{$node} .= $_;
/Installation failed/ and $bad_nodes{$node} = '';
/Installation is possible/ and delete $bad_nodes{$node}, last;
}
close F;
}
foreach (keys %{$parallel->{nodes}}) {
exists $bad_nodes{$_} or next;
$urpm->{error}(urpm::N("Installation failed on node %s", $_) . ":\n" . $bad_nodes{$_});
}
%bad_nodes and return;
if ($options{test}) {
$urpm->{error}(urpm::N("Installation is possible"));
1;
} else {
my $line = $parallel->{line} . ($options{excludepath} ? " --excludepath $options{excludepath}" : "");
#- continue installation on each nodes.
foreach my $node (keys %{$parallel->{nodes}}) {
$urpm->{log}("parallel_ssh: ssh $node urpmi --no-locales --no-verify-rpm --auto --synthesis $parallel->{synthesis} $line");
system split " ", "ssh $node urpmi --no-locales --no-verify-rpm --auto --synthesis $parallel->{synthesis} $line";
}
}
}
#- allow bootstrap from urpmi code directly (namespace is urpm).
package urpm;
sub handle_parallel_options {
my ($urpm, $options) = @_;
my ($id, @nodes) = split ':', $options;
if ($id =~ /^ssh(?:\(([^\)]*)\))?$/) {
my %nodes; @nodes{@nodes} = undef;
return bless {
media => $1,
nodes => \%nodes,
}, "urpm::parallel_ssh";
}
return undef;
}
1;
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