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-rw-r--r--scripts/buf.pl122
1 files changed, 122 insertions, 0 deletions
diff --git a/scripts/buf.pl b/scripts/buf.pl
new file mode 100644
index 0000000..43b4b3d
--- /dev/null
+++ b/scripts/buf.pl
@@ -0,0 +1,122 @@
+use strict;
+use vars qw($VERSION %IRSSI);
+
+use Irssi qw(command signal_add signal_add_first active_win
+ settings_get_str settings_get_bool channels windows
+ settings_add_str settings_add_bool get_irssi_dir
+ window_find_refnum signal_stop);
+$VERSION = '2.13';
+%IRSSI = (
+ authors => 'Juerd',
+ contact => 'juerd@juerd.nl',
+ name => 'Scroll buffer restorer',
+ description => 'Saves the buffer for /upgrade, so that no information is lost',
+ license => 'Public Domain',
+ url => 'http://juerd.nl/irssi/',
+ changed => 'Mon May 13 19:41 CET 2002',
+ changes => 'Severe formatting bug removed * oops, I ' .
+ 'exposed Irssi to ircII foolishness * sorry ' .
+ '** removed logging stuff (this is a fix)',
+ note1 => 'This script HAS TO BE in your scripts/autorun!',
+ note2 => 'Perl support must be static or in startup',
+);
+
+# Q: How can I get a very smooth and clean upgrade?
+#
+# A: /set -clear upgrade_separator
+# /set upgrade_suppress_join ON (default)
+# /set channel_sync OFF
+
+# Q: Can I use color in the upgrade_separator?
+# Q: Is it possible to save my command history?
+# Q: Can I prevent the screen from blinking?
+# Q: Can you make it faster?
+#
+# A: Probably not, but if you can do it, tell me how.
+
+use Irssi::TextUI;
+use Data::Dumper;
+
+my %suppress;
+
+sub upgrade {
+ open BUF, sprintf('>%s/scrollbuffer', get_irssi_dir) or die $!;
+ print BUF join("\0", map $_->{server}->{address} . $_->{name}, channels), "\n";
+ for my $window (windows) {
+ next unless defined $window;
+ next if $window->{name} eq 'status';
+ my $view = $window->view;
+ my $line = $view->get_lines;
+ my $lines = 0;
+ my $buf = '';
+ if (defined $line){
+ {
+ $buf .= $line->get_text(1) . "\n";
+ $line = $line->next;
+ $lines++;
+ redo if defined $line;
+ }
+ }
+ printf BUF "%s:%s\n%s", $window->{refnum}, $lines, $buf;
+ }
+ close BUF;
+ unlink sprintf("%s/sessionconfig", get_irssi_dir);
+ command 'layout save';
+ command 'save';
+}
+
+sub restore {
+ open BUF, sprintf('<%s/scrollbuffer', get_irssi_dir) or die $!;
+ my @suppress = split /\0/, <BUF>;
+ if (settings_get_bool 'upgrade_suppress_join') {
+ chomp $suppress[-1];
+ @suppress{@suppress} = (2) x @suppress;
+ }
+ active_win->command('^window scroll off');
+ while (my $bla = <BUF>){
+ chomp $bla;
+ my ($refnum, $lines) = split /:/, $bla;
+ next unless $lines;
+ my $window = window_find_refnum $refnum;
+ unless (defined $window){
+ <BUF> for 1..$lines;
+ next;
+ }
+ my $view = $window->view;
+ $view->remove_all_lines();
+ $view->redraw();
+ my $buf = '';
+ $buf .= <BUF> for 1..$lines;
+ my $sep = settings_get_str 'upgrade_separator';
+ $sep .= "\n" if $sep ne '';
+ $window->gui_printtext_after(undef, MSGLEVEL_CLIENTNOTICE, "$buf\cO$sep");
+ $view->redraw();
+ }
+ active_win->command('^window scroll on');
+ active_win->command('^scrollback end');
+}
+
+sub suppress {
+ my ($first, $second) = @_;
+ return
+ unless scalar keys %suppress
+ and settings_get_bool 'upgrade_suppress_join';
+ my $key = $first->{address} .
+ (grep { (s/^://, /^[#!+&]/) } split ' ', $second)[0];
+ if (exists $suppress{$key} and $suppress{$key}--) {
+ signal_stop();
+ delete $suppress{$key} unless $suppress{$key};
+ }
+}
+
+settings_add_str 'buffer', 'upgrade_separator' => '=Upgrade=';
+settings_add_bool 'buffer', 'upgrade_suppress_join' => 1;
+
+signal_add_first 'session save' => 'upgrade';
+signal_add_first 'session restore' => 'restore';
+signal_add 'event 366' => 'suppress';
+signal_add 'event join' => 'suppress';
+
+unless (-f sprintf('%s/scripts/autorun/buf.pl', get_irssi_dir)) {
+ Irssi::print('PUT THIS SCRIPT IN ~/.irssi/scripts/autorun/ BEFORE /UPGRADING!!');
+}