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# ex:ts=8 sw=4:
# $OpenBSD: ProgressMeter.pm,v 1.43 2014/07/07 16:45:03 espie Exp $
#
# Copyright (c) 2010 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
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
use strict;
use warnings;
package OpenBSD::PackingElement;
sub compute_size
{
my ($self, $totsize) = @_;
$$totsize += $self->{size} if defined $self->{size};
}
package OpenBSD::ProgressMeter;
sub new
{
bless {}, "OpenBSD::ProgressMeter::Stub";
}
sub compute_size
{
my ($self, $plist) = @_;
my $totsize = 0;
$plist->compute_size(\$totsize);
$totsize = 1 if $totsize == 0;
return $totsize;
}
sub setup
{
my ($self, $opt_x, $opt_m, $state) = @_;
if ($opt_m || (!$opt_x && -t STDOUT)) {
require OpenBSD::ProgressMeter::Term;
bless $self, "OpenBSD::ProgressMeter::Term";
$self->{state} = $state;
$self->init;
}
}
sub print
{
shift->clear;
print @_;
}
sub errprint
{
shift->clear;
print STDERR @_;
}
sub new_sizer
{
my ($progress, $plist, $state) = @_;
return $progress->sizer_class->new($progress, $plist, $state);
}
sub sizer_class
{
"PureSizer"
}
sub for_list
{
my ($self, $msg, $l, $code) = @_;
if (defined $msg) {
$self->set_header($msg);
}
my $total = scalar @$l;
my $i = 0;
for my $e (@$l) {
$self->show(++$i, $total);
&$code($e);
}
$self->next;
}
# stub class when no actual progressmeter that still prints out.
package OpenBSD::ProgressMeter::Stub;
our @ISA = qw(OpenBSD::ProgressMeter);
sub clear {}
sub show {}
sub working {}
sub message {}
sub next {}
sub set_header {}
sub ntogo
{
return "";
}
sub visit_with_size
{
my ($progress, $plist, $method, @r) = @_;
$plist->$method(@r);
}
sub visit_with_count
{
&OpenBSD::ProgressMeter::Stub::visit_with_size;
}
package PureSizer;
sub new
{
my ($class, $progress, $plist, $state) = @_;
$plist->{totsize} //= $progress->compute_size($plist);
bless {
progress => $progress,
totsize => $plist->{totsize},
donesize => 0,
state => $state
}, $class;
}
sub advance
{
my ($self, $e) = @_;
if (defined $e->{size}) {
$self->{donesize} += $e->{size};
}
}
sub saved
{
my $self = shift;
$self->{state}{stats}{totsize} += $self->{totsize};
$self->{state}{stats}{donesize} += $self->{donesize};
}
1;
|
