This file is indexed.

/usr/share/perl5/Audio/Nama/Persistence.pm is in nama 1.078-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
# ---------- Persistent State Support -------------


package Audio::Nama;
use Modern::Perl;
use File::Slurp;
use Audio::Nama::Assign qw(quote_yaml_scalars);
no warnings 'uninitialized';

our (

	$saved_version,
	$cop_id,
	%cops,
	%copp,
	%copp_exp,
	$unit,
	%oid_status,
	@tracks_data,
	@bus_data,
	@groups_data,
	@marks_data,
	@fade_data,
	@edit_data,
	@inserts_data,
	@loop_endpoints,
	$loop_enable,
	$length,
	%bunch,
	@command_history,
	$mastering_mode,
	$this_track_name,
	$this_op,


# autosave

	$autosave_interval,
	%event_id,

);

our (
	$state_store_file,
	$effect_chain_file,
	$effect_profile_file,
	%effect_chain,
	%effect_profile,
	%tn,
	%ti,
	%bn,
	$term,
	$this_track,
	$this_bus,
	@persistent_vars,
	$ui,
	$VERSION,
	%opts,
	$debug, 
	$debug2,
	$debug3
);

sub save_state {
	my $file = shift || $state_store_file; 
	$debug2 and print "&save_state\n";
	$saved_version = $VERSION;


	# some stuff get saved independently of our state file
	
	$debug and print "saving palette\n";
	$ui->save_palette;

	# do nothing more if only Master and Mixdown
	
	if (scalar @Audio::Nama::Track::all == 2 ){
		print "No user tracks, skipping...\n";
		return;
	}

	print "\nSaving state as ",
	save_system_state($file), "\n";
	save_effect_chains();
	save_effect_profiles();

	# store alsa settings

	if ( $opts{a} ) {
		my $file = $file;
		$file =~ s/\.yml$//;
		print "storing ALSA settings\n";
		print qx(alsactl -f $file.alsa store);
	}
}
sub initialize_serialization_arrays {
	@tracks_data = (); # zero based, iterate over these to restore
	@bus_data = (); # 
	@marks_data = ();
	@fade_data = ();
	@inserts_data = ();
	@edit_data = ();
	@command_history = ();
}

sub save_system_state {

	my $file = shift;

	# save stuff to state file

	$file = join_path(project_dir(), $file) unless $file =~ m(/); 
	$file =~ /\.yml$/ or $file .= '.yml';	

	sync_effect_parameters(); # in case a controller has made a change

	# remove null keys in %cops and %copp
	
	delete $cops{''};
	delete $copp{''};

	initialize_serialization_arrays();
	
	# prepare tracks for storage
	
	$this_track_name = $this_track->name;

	$debug and print "copying tracks data\n";

	map { push @tracks_data, $_->hashref } Audio::Nama::Track::all();
	# print "found ", scalar @tracks_data, "tracks\n";

	# delete unused fields
	map { my $t = $_;
				map{ delete $t->{$_} } 
					qw(ch_r ch_m source_select send_select jack_source jack_send);
	} @tracks_data;

	$debug and print "copying bus data\n";

	map{ push @bus_data, $_->hashref } Audio::Nama::Bus::all();

	# prepare inserts data for storage
	
	$debug and print "copying inserts data\n";
	
	while (my $k = each %Audio::Nama::Insert::by_index ){ 
		push @inserts_data, $Audio::Nama::Insert::by_index{$k}->hashref;
	}

	# prepare marks data for storage (new Mark objects)

	$debug and print "copying marks data\n";
	push @marks_data, map{ $_->hashref } Audio::Nama::Mark::all();

	push @fade_data,  map{ $_->hashref } values %Audio::Nama::Fade::by_index;

	push @edit_data,  map{ $_->hashref } values %Audio::Nama::Edit::by_index;

	# save history -- 50 entries, maximum

	my @history = $Audio::Nama::term->GetHistory;
	my %seen;
	map { push @command_history, $_ 
			unless $seen{$_}; $seen{$_}++ } @history;
	my $max = scalar @command_history;
	$max = 50 if $max > 50;
	@command_history = @command_history[-$max..-1];
	$debug and print "serializing\n";

	serialize(
		file => $file, 
		format => 'yaml',
		vars => \@persistent_vars,
		class => 'Audio::Nama',
		);


	$file
}
sub restore_state {
	$debug2 and print "&restore_state\n";
	my $file = shift;
	$file = $file || $state_store_file;
	$file = join_path(project_dir(), $file)
		unless $file =~ m(/);
	$file .= ".yml" unless $file =~ /yml$/;
	! -f $file and (print "file not found: $file\n"), return;
	$debug and print "using file: $file\n";
	
	my $yaml = read_file($file);

	# remove empty key hash lines # fixes YAML::Tiny bug
	$yaml = join $/, grep{ ! /^\s*:/ } split $/, $yaml;

	# rewrite obsolete null hash/array substitution
	$yaml =~ s/~NULL_HASH/{}/g;
	$yaml =~ s/~NULL_ARRAY/[]/g;

	# rewrite %cops 'owns' field to []
	
	$yaml =~ s/owns: ~/owns: []/g;

	$yaml = quote_yaml_scalars( $yaml );
	
	# start marshalling with clean slate	
	
	initialize_serialization_arrays();

	# restore persistent variables

	assign_var($yaml, @persistent_vars );

	restore_effect_chains();
	restore_effect_profiles();

	##  print yaml_out \@groups_data; 
	# %cops: correct 'owns' null (from YAML) to empty array []
	
	# backward compatibility fixes for older projects

	if (! $saved_version ){

		# Tracker group is now called 'Main'
	
		map{ $_->{name} = 'Main'} grep{ $_->{name} eq 'Tracker' } @groups_data;
		
		for my $t (@tracks_data){
			$t->{group} =~ s/Tracker/Main/;
			if( $t->{source_select} eq 'soundcard'){
				$t->{source_type} = 'soundcard' ;
				$t->{source_id} = $t->{ch_r}
			}
			elsif( $t->{source_select} eq 'jack'){
				$t->{source_type} = 'jack_client' ;
				$t->{source_id} = $t->{jack_source}
			}
			if( $t->{send_select} eq 'soundcard'){
				$t->{send_type} = 'soundcard' ;
				$t->{send_id} = $t->{ch_m}
			}
			elsif( $t->{send_select} eq 'jack'){
				$t->{send_type} = 'jack_client' ;
				$t->{send_id} = $t->{jack_send}
			}
		}
	}
	if( $saved_version < 0.9986){
	
		map { 	# store insert without intermediate array

				my $t = $_;

				# use new storage format for inserts
				my $i = $t->{inserts};
				if($i =~ /ARRAY/){ 
					$t->{inserts} = scalar @$i ? $i->[0] : {}  }
				
				# initialize inserts effect_chain_stack and cache_map

				$t->{inserts} //= {};
				$t->{effect_chain_stack} //= [];
				$t->{cache_map} //= {};

				# set class for Mastering tracks

				$t->{class} = 'Audio::Nama::MasteringTrack' if $t->{group} eq 'Mastering';
				$t->{class} = 'Audio::Nama::SimpleTrack' if $t->{name} eq 'Master';

				# rename 'ch_count' field to 'width'
				
				$t->{width} = $t->{ch_count};
				delete $t->{ch_count};

				# set Mixdown track width to 2
				
				$t->{width} = 2 if $t->{name} eq 'Mixdown';
				
				# remove obsolete fields
				
				map{ delete $t->{$_} } qw( 
											delay 
											length 
											start_position 
											ch_m 
											ch_r
											source_select 
											jack_source   
											send_select
											jack_send);
		}  @tracks_data;
	}

	# jack_manual is now called jack_port
	if ( $saved_version <= 1){
		map { $_->{source_type} =~ s/jack_manual/jack_port/ } @tracks_data;
	}
	if ( $saved_version <= 1.053){ # convert insert data to object
		my $n = 0;
		@inserts_data = ();
		for my $t (@tracks_data){
			my $i = $t->{inserts};
			next unless keys %$i;
			$t->{postfader_insert} = ++$n;
			$i->{class} = 'Audio::Nama::PostFaderInsert';
			$i->{n} = $n;
			$i->{wet_name} = $t->{name} . "_wet";
			$i->{dry_name} = $t->{name} . "_dry";
			delete $t->{inserts};
			delete $i->{tracks};
			push @inserts_data, $i;
		} 
	}
	if ( $saved_version <= 1.054){ 

		for my $t (@tracks_data){

			# source_type 'track' is now  'bus'
			$t->{source_type} =~ s/track/bus/;

			# convert 'null' bus to 'Null' (which is eliminated below)
			$t->{group} =~ s/null/Null/;
		}

	}

	if ( $saved_version <= 1.055){ 

	# get rid of Null bus routing
	
		map{$_->{group}       = 'Main'; 
			$_->{source_type} = 'null';
			$_->{source_id}   = 'null';
		} grep{$_->{group} eq 'Null'} @tracks_data;

	}

	if ( $saved_version <= 1.064){ 
		map{$_->{version} = $_->{active};
			delete $_->{active}}
			grep{$_->{active}}
			@tracks_data;
	}

	$debug and print "inserts data", yaml_out \@inserts_data;


	# make sure Master has reasonable output settings
	
	map{ if ( ! $_->{send_type}){
				$_->{send_type} = 'soundcard',
				$_->{send_id} = 1
			}
		} grep{$_->{name} eq 'Master'} @tracks_data;

	if ( $saved_version <= 1.064){ 

		map{ 
			my $default_list = Audio::Nama::IO::default_jack_ports_list($_->{name});

			if( -e join_path(project_root(),$default_list)){
				$_->{source_type} = 'jack_ports_list';
				$_->{source_id} = $default_list;
			} else { 
				$_->{source_type} = 'jack_manual';
				$_->{source_id} = ($_->{target}||$_->{name}).'_in';
			}
		} grep{ $_->{source_type} eq 'jack_port' } @tracks_data;
	}
	if ( $saved_version <= 1.067){ 

		map{ $_->{current_edit} or $_->{current_edit} = {} } @tracks_data;
		map{ 
			delete $_->{active};
			delete $_->{inserts};
			delete $_->{prefader_insert};
			delete $_->{postfader_insert};
			
			# eliminate field is_mix_track
			if ($_->{is_mix_track} ){
				 $_->{source_type} = 'bus';
				 $_->{source_id}   = undef;
			}
			delete $_->{is_mix_track};

 		} @tracks_data;
	}
	if ( $saved_version <= 1.068){ 

		# initialize version_comment field
		map{ $_->{version_comment} or $_->{version_comment} = {} } @tracks_data;

		# convert existing comments to new format
		map{ 
			while ( my($v,$comment) = each %{$_->{version_comment}} )
			{ 
				$_->{version_comment}{$v} = { user => $comment }
			}
		} grep { $_->{version_comment} } @tracks_data;
	}
	# convert to new MixTrack class
	if ( $saved_version < 1.069){ 
		map {
		 	$_->{was_class} = $_->{class};
			$_->{class} = $_->{'Audio::Nama::MixTrack'};
		} 
		grep { 
			$_->{source_type} eq 'bus' or 
		  	$_->{source_id}   eq 'bus'
		} 
		@tracks_data;
	}

	#  destroy and recreate all buses

	Audio::Nama::Bus::initialize();	

	create_system_buses(); 

	# restore user buses
		
	map{ my $class = $_->{class}; $class->new( %$_ ) } @bus_data;

	my $main = $bn{Main};

	# bus should know its mix track
	
	$main->set( send_type => 'track', send_id => 'Master')
		unless $main->send_type;

	# restore user tracks
	
	my $did_apply = 0;

	# temporary turn on mastering mode to enable
	# recreating mastering tracksk

	my $current_master_mode = $mastering_mode;
	$mastering_mode = 1;

	map{ 
		my %h = %$_; 
		my $class = $h{class} || "Audio::Nama::Track";
		my $track = $class->new( %h );
	} @tracks_data;

	$mastering_mode = $current_master_mode;

	# restore inserts
	
	Audio::Nama::Insert::initialize();
	
	map{ 
		bless $_, $_->{class};
		$Audio::Nama::Insert::by_index{$_->{n}} = $_;
	} @inserts_data;

	$ui->create_master_and_mix_tracks();

	$this_track = $tn{$this_track_name} if $this_track_name;
	set_current_bus();

	map{ 
		my $n = $_->{n};

		# create gui
		$ui->track_gui($n) unless $n <= 2;

		# restore effects
		
		for my $id (@{$ti{$n}->ops}){
			$did_apply++ 
				unless $id eq $ti{$n}->vol
					or $id eq $ti{$n}->pan;
			
			add_effect({
						chain => $cops{$id}->{chain},
						type => $cops{$id}->{type},
						cop_id => $id,
						parent_id => $cops{$id}->{belongs_to},
						});

		}
	} @tracks_data;


	#print "\n---\n", $main->dump;  
	#print "\n---\n", map{$_->dump} Audio::Nama::Track::all();# exit; 
	$did_apply and $ui->manifest;
	$debug and print join " ", 
		(map{ ref $_, $/ } Audio::Nama::Track::all()), $/;


	# restore Alsa mixer settings
	if ( $opts{a} ) {
		my $file = $file; 
		$file =~ s/\.yml$//;
		print "restoring ALSA settings\n";
		print qx(alsactl -f $file.alsa restore);
	}

	# text mode marks 
		
	map{ 
		my %h = %$_; 
		my $mark = Audio::Nama::Mark->new( %h ) ;
	} @marks_data;


	$ui->restore_time_marks();
	$ui->paint_mute_buttons;

	# track fades
	
	map{ 
		my %h = %$_; 
		my $fade = Audio::Nama::Fade->new( %h ) ;
	} @fade_data;

	# edits 
	
	map{ 
		my %h = %$_; 
		my $edit = Audio::Nama::Edit->new( %h ) ;
	} @edit_data;

	# restore command history
	
	$term->SetHistory(@command_history);
} 
sub assign_var {
	my ($source, @vars) = @_;
	assign_vars(
				source => $source,
				vars   => \@vars,
		#		format => 'yaml', # breaks
				class => 'Audio::Nama');
}

sub save_effect_chains { # if they exist
	my $file = shift || $effect_chain_file;
	if (keys %effect_chain){
		serialize (
			file => join_path(project_root(), $file),
			format => 'yaml',
			vars => [ qw( %effect_chain ) ],
			class => 'Audio::Nama');
	}
}
sub save_effect_profiles { # if they exist
	my $file = shift || $effect_profile_file;
	if (keys %effect_profile){
		serialize (
			file => join_path(project_root(), $file),
			format => 'yaml',
			vars => [ qw( %effect_profile ) ],
			class => 'Audio::Nama');
	}
}
sub restore_effect_chains {

	my $file = join_path(project_root(), $effect_chain_file);
	return unless -e $file;

	# don't overwrite them if already present
	assign_var($file, qw(%effect_chain)) unless keys %effect_chain
}
sub restore_effect_profiles {

	my $file = join_path(project_root(), $effect_profile_file);
	return unless -e $file;

	# don't overwrite them if already present
	assign_var($file, qw(%effect_profile)) unless keys %effect_profile; 
}

# autosave

sub schedule_autosave { 
	# one-time timer 
	my $seconds = (shift || $autosave_interval) * 60;
	$event_id{autosave} = undef; # cancel any existing timer
	return unless $seconds;
	$event_id{autosave} = AE::timer($seconds,0, \&autosave);
}
sub autosave {
	if (engine_running()){ 
		schedule_autosave(1); # try again in 60s
		return;
	}
 	my $file = 'State-autosave-' . time_tag();
 	save_system_state($file);
	my @saved = autosave_files();
	my ($next_last, $last) = @saved[-2,-1];
	schedule_autosave(); # standard interval
	return unless defined $next_last and defined $last;
	if(files_are_identical($next_last, $last)){
		unlink $last;
		undef; 
	} else { 
		$last 
	}
}
sub autosave_files {
	sort File::Find::Rule  ->file()
						->name('State-autosave-*')
							->maxdepth(1)
						 	->in( project_dir());
}
sub files_are_identical {
	my ($filea,$fileb) = @_;
	my $a = read_file($filea);
	my $b = read_file($fileb);
	$a eq $b
}

1;
__END__