mdw@git.distorted.org.uk Git - xfonts-traditional/blob - update-xfonts-traditional

   1 #!/usr/bin/perl -w
   2 use strict;
   3 use POSIX;
   4 use IO::File;
   5 use Getopt::Long;
   6 use File::Glob qw(:glob);
   7 use Data::Dumper;
   8 use IO::Pipe;
   9 use File::Find;
  10
  11 our $prefix="/usr/local";
  12 our $package='xfonts-traditional';
  13 our $sharedir="$prefix/share/$package";
  14 our @fonttrees=qw(/usr/share/fonts/X11 /usr/local/share/fonts/X11);
  15 our $donefile="$package.done";
  16 our $logfile="$package.log";
  17 our $fontprefix="trad--";
  18 our @rulespath;
  19 our $mode;
  20 our %foundrymap;
  21 our $verbose=0;
  22 our $reportfh;
  23 our $foundryinfo;
  24 our %props;
  25
  26 sub reportloaded {
  27     return unless $verbose;
  28     print $reportfh @_,"\n" or die $!;
  29 }
  30
  31 sub statsummary () {
  32     return join ' ', ((stat _)[1,7,9,10]);
  33 }
  34
  35 sub loadrules ($) {
  36     my ($key) = @_;
  37     our %cache;
  38     my $fc=$cache{$key};
  39     return $fc if $fc;
  40     foreach my $path (@rulespath) {
  41         my $script="$path/$key.rules";
  42         $!=0; $@=''; my $f = do $script;
  43         if (defined $f) {
  44             reportloaded("rules: loaded ",$script);
  45             $cache{$key}=$f;
  46             return $f;
  47         }
  48         die "$! $? $script" unless $! == &ENOENT;
  49     }
  50     return $cache{$key}=undef;
  51 }
  52
  53 sub processbdf ($$$$) {
  54     my ($inbdf,$outbdf,$logfile,$what) = @_;
  55     my $state='idle';
  56     my ($foundry,$font);
  57     my ($w,$h,$xo,$yo,$y,$bitmap,$glyph);
  58     my $modified=0;
  59     %props = ();
  60     while (<$inbdf>) {
  61         if ($state eq 'bitmap' && $y==$h) {
  62             $glyph = uc $glyph;
  63             $glyph =~ s/\;$//;
  64             local ($_) = $glyph;
  65             my $key= sprintf "%s,%d,%d,%d,%d", $foundry,$w,$h,$xo,$yo;
  66             my $rules= loadrules($key);
  67             return (0,'no rules') if !$rules;
  68             $rules->();
  69             $modified += ($_ ne $glyph);
  70             print $outbdf $_,"\n" or die $!
  71                 foreach split /\;/, $_; # /;
  72             $state='idle';
  73         }
  74         if ($state eq 'bitmap') {
  75             m/^([0-9a-fA-F]+)\s+$/ or die $y;
  76             length($1) == (($w+7 >> 3) << 1) or die "$1 $w";
  77             $glyph .= "$1;";
  78             $y++;
  79             next;
  80         }
  81         if ($state eq 'idle' && m/^FOUNDRY\s+/) {
  82             die if defined $foundry;
  83             return (0,'foundry syntax') unless m/^FOUNDRY\s+\"(\w+)\"\s+/;
  84             $foundry = $foundrymap{lc $1};
  85             return (0,'no foundry') unless defined $foundry;
  86             $_ = "FOUNDRY \"$foundry\"\n";
  87         }
  88         if ($state eq 'idle' && m/^FONT\s+/) {
  89             die if defined $font;
  90             return (0,'simple font name') unless m/^(FONT\s+)\-(\w+)\-/;
  91             $font = $foundrymap{lc $2};
  92             return (0,'no foundry') unless defined $font;
  93             $_ = "FONT -$font-$'";
  94         }
  95         if ($state eq 'idle' && m/^STARTCHAR\s/) {
  96             die unless defined $foundry;
  97             die unless defined $font;
  98             return (0,'foundry != font') unless $foundry eq $font;
  99             $state='startchar';
 100             $w=undef;
 101         }
 102         if (($state eq 'idle' || $state eq 'startchar') &&
 103             m/^([A-Z_]+)\s+(.*\S)\s+$/) {
 104             $props{$1}=$2;
 105         }
 106         if ($state eq 'startchar') {
 107             if (m/^BBX\s+(\+?\d+)\s+(\+?\d+)\s+([-+]?\d+)\s+([-+]?\d+)\s+$/) {
 108                 ($w,$h,$xo,$yo) = ($1,$2,$3,$4);
 109             }
 110             if (m/^BITMAP\s+$/) {
 111                 die unless defined $w;
 112                 $y=0;
 113                 $glyph='';
 114                 $state='bitmap';
 115                 $props{' 7bit'}=
 116                     ($props{'CHARSET_REGISTRY'} =~ m/iso8859|utf|iso10646/i &&
 117                      $props{'ENCODING'} <= 127);
 118             }
 119         }
 120         print $outbdf $_ or die $!;
 121     }
 122     die $! if $inbdf->error;
 123     die $! if $outbdf->error or !$outbdf->flush;
 124     die unless $state eq 'idle';
 125     if ($modified) {
 126         printf $logfile "%s: %d glyphs changed\n", $what, $modified
 127             or die $!;
 128     } else {
 129         printf $logfile "%s: unchanged - no rules matched\n", $what
 130             or die $!;
 131     }
 132     return $modified;
 133 }
 134
 135 sub loadfoundries () {
 136     $foundryinfo = '';
 137     foreach my $path (@rulespath) {
 138         if (!stat $path) {
 139             die "$path $!" unless $!==&ENOENT;
 140             next;
 141         }
 142         $foundryinfo .= statsummary().' '.$path."\0\n";
 143
 144         my $p = "$path/foundries";
 145         my $f = new IO::File $p;
 146         if (!$f) {
 147             die "$p $!" unless $!==&ENOENT;
 148             print $reportfh "foundries: none in $p\n" or die $! if $verbose;
 149             next;
 150         }
 151         stat $f or die $!;
 152         while (<$f>) {
 153             s/^\s*//; s/\s+$//;
 154             next if m/^\#/;
 155             m/^(\w+)\s+(\w+)$/ or die;
 156             my $k = lc $1;
 157             next if exists $foundrymap{$k};
 158             $foundrymap{$k}=$2;
 159         }
 160         $f->error and die $!;
 161         reportloaded('foundries: loaded ',$p);
 162     }
 163     die "no foundry maps\n" unless %foundrymap;
 164 }
 165
 166 sub processpcfgz ($$$$) {
 167     my ($inpcfgz,$outpcfgz,$logfile,$what) = @_;
 168     print $reportfh "processing $inpcfgz to $outpcfgz\n" if $verbose>=2;
 169     my $current = new IO::File $inpcfgz, '<' or die "$inpcfgz $!";
 170     my ($usread,$uswrite);
 171     my ($reader,$writer);
 172     my @children;
 173     foreach my $proc (['gunzip'], ['pcf2bdf'], [],
 174                       ['bdftopcf'],['',qw(gzip -1 -n)]) {
 175         my $isfinal = (@$proc && $proc->[0] eq '');
 176         if (!$isfinal) {
 177             $reader = new IO::Handle or die $!;
 178             $writer = new IO::Handle or die $!;
 179             new IO::Pipe($reader,$writer) or die $!;
 180         } else {
 181             shift @$proc;
 182             $reader = undef;
 183             $writer = new IO::File $outpcfgz, '>' or die "$outpcfgz $!";
 184         }
 185         if (@$proc) {
 186             my $exe = $proc->[0];
 187             my $child = fork;  defined $child or die $!;
 188             if (!$child) {
 189                 open STDIN, '<&', $current or die $!;
 190                 open STDOUT, '>&', $writer or die $!;
 191                 if (!$isfinal) {
 192                     close $reader or die $!;
 193                 }
 194                 close $usread or die $! if $usread;
 195                 close $uswrite or die $! if $uswrite;
 196                 exec $exe @$proc or die "$exe $!";
 197             }
 198             push @children, [ $child, $exe, defined $usread ];
 199             close $current or die $!;
 200             close $writer or die $!;
 201             $current = $reader;
 202         } else {
 203             $usread = $current;
 204             $uswrite = $writer;
 205             $current = $reader;
 206         }
 207     }
 208     my $r = processbdf($usread,$uswrite,$logfile,$what);
 209     my $none = $r !~ m/^\d/;
 210     if ($none) {
 211         flush $uswrite or die $!;
 212     } else {
 213         close $uswrite or die $!;
 214     }
 215     close $usread or die $!;
 216     foreach my $chinfo (@children) {
 217         my ($child,$exe,$isoutput)=@$chinfo;
 218         my $sigok = 0;
 219         if ($none) {
 220             if ($isoutput) {
 221                 $sigok = 9;
 222                 kill 9, $child or die "$child $!";
 223             } else {
 224                 $sigok = 13;
 225             }
 226         }
 227         $!=0; waitpid($child, 0) == $child or die "$child $!";
 228         !$? or ($?&~128)==$sigok or die "$exe [$child] $sigok $?";
 229     }
 230     return $r;
 231 }
 232
 233 sub processfontdir ($) {
 234     my ($fontdir) = @_;
 235     if (!opendir FD, $fontdir) {
 236         die "$fontdir $!" unless $!==&ENOENT;
 237         return;
 238     }
 239     my $changed = 0;
 240     my $olddone = do "$fontdir/$donefile";
 241     if (!$olddone) {
 242         die "$fontdir $! $@ " unless $!==&ENOENT;
 243     } elsif ($olddone->{''} ne $foundryinfo) {
 244         our $repro_reported;
 245         print $reportfh "reprocessing fonts (rules updated)\n" or die $!
 246             unless $repro_reported++;
 247         $olddone = undef;
 248     }
 249     if (!$olddone) {
 250         $olddone = { };
 251         $changed = 1;
 252     }
 253     my $newdone = { '' => $foundryinfo };
 254     my $log = new IO::File "$fontdir/$logfile", "w"
 255         or die "$fontdir/$logfile $!";
 256     my %outfiles; # bitmask: 1 /*exists*/ | 2 /*wanted*/
 257     my $updated=0;
 258     my $reported=0;
 259     my $anypcfs=0;
 260
 261     flush $reportfh or die $!;
 262     while (my $dent = scalar readdir FD) {
 263         if ($dent =~ m/^\Q$fontprefix\E.*\.new$/) {
 264             unlink "$fontdir/$dent" or $!==&ENOENT or die "$fontdir $dent $!";
 265             next;
 266         }
 267         next unless $dent =~ m/^[^.\/].*\.pcf\.gz$/;
 268         print $reportfh "processing $fontdir...\n" or die $!
 269             unless $reported++;
 270         if ($dent =~ m/^\Q$fontprefix/) {
 271             $outfiles{$dent} |= 1;
 272             next;
 273         }
 274         if (!stat "$fontdir/$dent") {
 275             die "$fontdir $dent $!" unless $!==&ENOENT;
 276             next;
 277         }
 278         die "$fontdir $dent" unless -f _;
 279         $anypcfs++;
 280
 281         my $stats = statsummary();
 282         my $tdone = $olddone->{$dent};
 283         my $outdent = $fontprefix.$dent;
 284         if (defined $tdone && $tdone eq $stats) {
 285             $outfiles{$outdent} |= 2;
 286             $newdone->{$dent} = $stats;
 287             next;
 288         }
 289
 290         my $r = processpcfgz("$fontdir/$dent",
 291                              "$fontdir/$outdent.new",
 292                              $log, $dent);
 293         if ($r !~ m/^\d/) {
 294             printf $log "%s: unchanged - %s\n", $dent, $r;
 295             unlink "$fontdir/$outdent.new" or die "$fontdir $outdent $!";
 296         } else {
 297             rename "$fontdir/$outdent.new", "$fontdir/$outdent"
 298                 or die "$fontdir $outdent $!";
 299             $updated++;
 300             $outfiles{$outdent} |= 3;
 301         }
 302         $newdone->{$dent} = $stats;
 303         $changed = 1;
 304     }
 305     my $affected=0;
 306     foreach my $olddent (keys %outfiles) {
 307         my $state = $outfiles{$olddent};
 308         if ($state & 2) {
 309             $affected++ if $state & 1;
 310             next;
 311         }
 312         unlink "$fontdir/$olddent" or die "$fontdir $olddent $!";
 313         $changed = 1;
 314         $updated++;
 315     }
 316     if (!stat "$fontdir/fonts.dir") {
 317         $!==&ENOENT or die "$fontdir $!";
 318     } else {
 319         $!=0; $?=0; system 'mkfontdir',$fontdir;
 320         die "$fontdir $? $!" if $? or $!;
 321     }
 322     if (!$anypcfs) {
 323         unlink "$fontdir/$logfile" or die "$fontdir $!";
 324         unlink "$fontdir/$donefile" or $!==&ENOENT or die "$fontdir $!";
 325     } elsif ($changed) {
 326         my $newdoneh = new IO::File "$fontdir/$donefile.new", 'w'
 327             or die "$fontdir $!";
 328         print $newdoneh Dumper($newdone) or die "$fontdir $!";
 329         close $newdoneh or die "$fontdir $!";
 330         rename "$fontdir/$donefile.new","$fontdir/$donefile"
 331             or die "$fontdir $!";
 332     }
 333     if ($reported || %$newdone || $affected || $updated) {
 334         printf " processed %s: %d pcfs, %d affected, %d updated.\n",
 335             $fontdir, (scalar keys %$newdone), $affected, $updated;
 336     }
 337 }
 338
 339 sub processfonttree ($) {
 340     my ($tree) = @_;
 341     find({ follow => 1,
 342            dangling_symlinks => 0,
 343            no_chdir => 1,
 344            wanted => sub {
 345                return unless -d _;
 346                processfontdir($File::Find::name);
 347            }},
 348          $tree);
 349 }
 350
 351 our $stdin = new IO::File '<&STDIN' or die $!;
 352 our $stdout = new IO::File '>&STDOUT' or die $!;
 353 our $stderr = new IO::File '>&STDERR' or die $!;
 354 $reportfh = $stdout;
 355
 356 our (@options)=(
 357     'R|rules-include=s@' => \@rulespath,
 358     'share-dir=s' => \$sharedir,
 359     'verbose|v+' => \$verbose,
 360     );
 361
 362 sub define_mode ($$) {
 363     my ($optname,$f) = @_;
 364     push @options, $optname, sub {
 365         die "only one mode may be specified\n" if defined $mode;
 366         $mode=$f;
 367     };
 368 }
 369
 370 define_mode('bdf-filter', sub {
 371     die "no arguments allowed with --bdf-filter\n" if @ARGV;
 372     $reportfh = $stderr;
 373     loadfoundries();
 374     my $r = processbdf($stdin,$stdout,$reportfh,'stdin');
 375     if ($r !~ m/^\d/) {
 376         print STDERR "stdin not processed: $r\n";
 377         exit 2;
 378     }
 379 });
 380
 381 define_mode('process-pcf', sub {
 382     die "need source and destination pcf.gz\n" if @ARGV!=2;
 383     loadfoundries();
 384     my $r = processpcfgz($ARGV[0],$ARGV[1],$reportfh,"pcf");
 385     if ($r !~ m/^\d/) {
 386         print STDERR "pcf not processed: $r\n";
 387         exit 2;
 388     }
 389 });
 390
 391 define_mode('process-fontdirs', sub {
 392     die "need font dir(s)\n" unless @ARGV;
 393     loadfoundries();
 394     foreach my $d (@ARGV) {
 395         processfontdir($d);
 396     }
 397 });
 398
 399 define_mode('process-fonttrees', sub {
 400     die "need font tree(s)\n" unless @ARGV;
 401     loadfoundries();
 402     foreach my $d (@ARGV) {
 403         processfonttree($d);
 404     }
 405 });
 406
 407 define_mode('update', sub {
 408     die "no arguments allowed with --postinst\n" unless !@ARGV;
 409     loadfoundries();
 410     foreach my $d (@fonttrees) {
 411         processfonttree($d);
 412     }
 413 });
 414
 415 Getopt::Long::Configure(qw(bundling));
 416 GetOptions(@options) or exit 127;
 417
 418 push @rulespath, "$sharedir/rules";
 419
 420 die "need a mode\n" unless $mode;
 421
 422 $mode->();