forked from Mirrors/wine-wine
154 lines
2.9 KiB
Perl
154 lines
2.9 KiB
Perl
package output;
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use strict;
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my $_output;
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sub new {
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my $self = shift;
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$_output = _output->new(@_);
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return $_output;
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}
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sub AUTOLOAD {
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my $self = shift;
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my $name = $output::AUTOLOAD;
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$name =~ s/^.*::(.[^:]*)$/$1/;
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return $_output->$name(@_);
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}
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package _output;
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use strict;
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my $stdout_isatty = -t STDOUT;
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my $stderr_isatty = -t STDERR;
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sub new {
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my $proto = shift;
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my $class = ref($proto) || $proto;
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my $self = {};
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bless ($self, $class);
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my $progress = \${$self->{PROGRESS}};
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my $last_progress = \${$self->{LAST_PROGRESS}};
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my $last_time = \${$self->{LAST_TIME}};
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my $progress_count = \${$self->{PROGRESS_COUNT}};
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my $prefix = \${$self->{PREFIX}};
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$$progress = "";
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$$last_progress = "";
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$$last_time = 0;
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$$progress_count = 0;
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$$prefix = "";
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return $self;
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}
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sub show_progress {
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my $self = shift;
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my $progress = \${$self->{PROGRESS}};
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my $last_progress = \${$self->{LAST_PROGRESS}};
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my $progress_count = \${$self->{PROGRESS_COUNT}};
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$$progress_count++;
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if($$progress_count > 0 && $$progress && $stderr_isatty) {
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print STDERR $$progress;
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$$last_progress = $$progress;
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}
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}
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sub hide_progress {
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my $self = shift;
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my $progress = \${$self->{PROGRESS}};
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my $last_progress = \${$self->{LAST_PROGRESS}};
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my $progress_count = \${$self->{PROGRESS_COUNT}};
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$$progress_count--;
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if($$last_progress && $stderr_isatty) {
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my $message;
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for (1..length($$last_progress)) {
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$message .= " ";
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}
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print STDERR $message;
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undef $$last_progress;
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}
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}
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sub update_progress {
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my $self = shift;
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my $progress = \${$self->{PROGRESS}};
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my $last_progress = \${$self->{LAST_PROGRESS}};
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my $prefix = "";
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my $suffix = "";
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if($$last_progress) {
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for (1..length($$last_progress)) {
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$prefix .= "";
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}
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my $diff = length($$last_progress)-length($$progress);
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if($diff > 0) {
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for (1..$diff) {
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$suffix .= " ";
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}
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for (1..$diff) {
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$suffix .= "";
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}
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}
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}
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print STDERR $prefix . $$progress . $suffix;
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$$last_progress = $$progress;
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}
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sub progress {
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my $self = shift;
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my $progress = \${$self->{PROGRESS}};
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my $last_time = \${$self->{LAST_TIME}};
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$$progress = shift;
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$self->update_progress;
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$$last_time = 0;
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}
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sub lazy_progress {
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my $self = shift;
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my $progress = \${$self->{PROGRESS}};
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my $last_time = \${$self->{LAST_TIME}};
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$$progress = shift;
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my $time = time();
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if($time - $$last_time > 0) {
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$self->update_progress;
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$$last_time = $time;
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}
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}
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sub prefix {
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my $self = shift;
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my $prefix = \${$self->{PREFIX}};
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$$prefix = shift;
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}
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sub write {
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my $self = shift;
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my $message = shift;
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my $prefix = \${$self->{PREFIX}};
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$self->hide_progress if $stdout_isatty;
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print $$prefix . $message;
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$self->show_progress if $stdout_isatty;
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}
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1;
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