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# ex:ts=8 sw=4:
# $OpenBSD: Tracker.pm,v 1.29 2018/10/22 10:29:06 espie Exp $
#
# Copyright (c) 2009 Marc Espie <espie@openbsd.org>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# In order to deal with dependencies, we have to know what's actually installed,
# and what can actually be updated.
# Specifically, to solve a dependency:
# - look at packages to_install
# - look at installed packages
# - if it's marked to_update, then we must process the update first
# - if it's marked as installed, or as cant_update, or uptodate, then
# we can use the installed packages.
# - otherwise, in update mode, put a request to update the package (e.g.,
# create a new UpdateSet.
# the Tracker object does maintain that information globally so that
# Update/Dependencies can do its job.
use strict;
use warnings;
package OpenBSD::Tracker;
our $s;
sub new
{
my $class = shift;
return $s = bless {}, $class;
}
sub dump2
{
my $set = shift;
if (defined $set->{merged}) {
return "merged from ".dump2($set->{merged});
}
return join("/",
join(",", $set->newer_names),
join(",", $set->older_names),
join(",", $set->kept_names),
join(",", $set->hint_names));
}
sub dump
{
return unless defined $s;
for my $l ('to_install', 'to_update') {
next unless defined $s->{$l};
print STDERR "$l:\n";
while (my ($k, $e) = each %{$s->{$l}}) {
print STDERR "\t$k => ", dump2($e), "\n";
}
}
for my $l ('uptodate', 'can_install', 'cant_update') {
next unless defined $s->{$l};
print STDERR "$l: ", join(' ', keys %{$s->{$l}}), "\n";
}
}
sub sets_todo
{
my ($self, $offset) = @_;
return sprintf("%u/%u", (scalar keys %{$self->{done}})-$offset,
scalar keys %{$self->{total}});
}
sub handle_set
{
my ($self, $set) = @_;
$self->{total}{$set} = 1;
if ($set->{finished}) {
$self->{done}{$set} = 1;
}
}
sub known
{
my ($self, $set) = @_;
for my $n ($set->newer, $set->older, $set->hints) {
$self->{known}{$n->pkgname} = 1;
}
}
sub add_set
{
my ($self, $set) = @_;
for my $n ($set->newer) {
$self->{to_install}{$n->pkgname} = $set;
}
for my $n ($set->older, $set->hints) {
$self->{to_update}{$n->pkgname} = $set;
}
for my $n ($set->kept) {
delete $self->{to_update}{$n->pkgname};
$self->{uptodate}{$n->pkgname} = 1;
}
$self->known($set);
$self->handle_set($set);
return $self;
}
sub todo
{
my ($self, @sets) = @_;
for my $set (@sets) {
$self->add_set($set);
}
return $self;
}
sub remove_set
{
my ($self, $set) = @_;
for my $n ($set->newer) {
delete $self->{to_install}{$n->pkgname};
delete $self->{cant_install}{$n->pkgname};
}
for my $n ($set->kept, $set->older, $set->hints) {
delete $self->{to_update}{$n->pkgname};
delete $self->{cant_update}{$n->pkgname};
}
$self->handle_set($set);
}
sub uptodate
{
my ($self, $set) = @_;
$set->{finished} = 1;
$self->remove_set($set);
for my $n ($set->older, $set->kept) {
$self->{uptodate}{$n->pkgname} = 1;
}
}
sub cant
{
my ($self, $set) = @_;
$set->{finished} = 1;
$self->remove_set($set);
$self->known($set);
for my $n ($set->older) {
$self->{cant_update}{$n->pkgname} = 1;
}
for my $n ($set->newer) {
$self->{cant_install}{$n->pkgname} = 1;
}
for my $n ($set->kept) {
$self->{uptodate}{$n->pkgname} = 1;
}
}
sub done
{
my ($self, $set) = @_;
$set->{finished} = 1;
$self->remove_set($set);
$self->known($set);
for my $n ($set->newer) {
$self->{uptodate}{$n->pkgname} = 1;
$self->{installed}{$n->pkgname} = 1;
}
for my $n ($set->kept) {
$self->{uptodate}{$n->pkgname} = 1;
}
}
sub is
{
my ($self, $k, $pkg) = @_;
my $set = $self->{$k}{$pkg};
if (ref $set) {
return $set->real_set;
} else {
return $set;
}
}
sub is_known
{
my ($self, $pkg) = @_;
return $self->is('known', $pkg);
}
sub is_installed
{
my ($self, $pkg) = @_;
return $self->is('installed', $pkg);
}
sub is_to_update
{
my ($self, $pkg) = @_;
return $self->is('to_update', $pkg);
}
sub cant_list
{
my $self = shift;
return keys %{$self->{cant_update}};
}
sub cant_install_list
{
my $self = shift;
return keys %{$self->{cant_install}};
}
1;
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