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             }
 116         }
 117         print $outbdf $_ or die $!;
 118     }
 119     die $! if $inbdf->error;
 120     die $! if $outbdf->error or !$outbdf->flush;
 121     die unless $state eq 'idle';
 122     if ($modified) {
 123         printf $logfile "%s: %d glyphs changed\n", $what, $modified
 124             or die $!;
 125     } else {
 126         printf $logfile "%s: unchanged - no rules matched\n", $what
 127             or die $!;
 128     }
 129     return $modified;
 130 }
 131
 132 sub loadfoundries () {
 133     $foundryinfo = '';
 134     foreach my $path (@rulespath) {
 135         if (!stat $path) {
 136             die "$path $!" unless $!==&ENOENT;
 137             next;
 138         }
 139         $foundryinfo .= statsummary().' '.$path."\0\n";
 140
 141         my $p = "$path/foundries";
 142         my $f = new IO::File $p;
 143         if (!$f) {
 144             die "$p $!" unless $!==&ENOENT;
 145             print $reportfh "foundries: none in $p\n" or die $! if $verbose;
 146             next;
 147         }
 148         stat $f or die $!;
 149         while (<$f>) {
 150             s/^\s*//; s/\s+$//;
 151             next if m/^\#/;
 152             m/^(\w+)\s+(\w+)$/ or die;
 153             my $k = lc $1;
 154             next if exists $foundrymap{$k};
 155             $foundrymap{$k}=$2;
 156         }
 157         $f->error and die $!;
 158         reportloaded('foundries: loaded ',$p);
 159     }
 160     die "no foundry maps\n" unless %foundrymap;
 161 }
 162
 163 sub processpcfgz ($$$$) {
 164     my ($inpcfgz,$outpcfgz,$logfile,$what) = @_;
 165     print $reportfh "processing $inpcfgz to $outpcfgz\n" if $verbose>=2;
 166     my $current = new IO::File $inpcfgz, '<' or die "$inpcfgz $!";
 167     my ($usread,$uswrite);
 168     my ($reader,$writer);
 169     my @children;
 170     foreach my $proc (['gunzip'], ['pcf2bdf'], [],
 171                       ['bdftopcf'],['',qw(gzip -1 -n)]) {
 172         my $isfinal = (@$proc && $proc->[0] eq '');
 173         if (!$isfinal) {
 174             $reader = new IO::Handle or die $!;
 175             $writer = new IO::Handle or die $!;
 176             new IO::Pipe($reader,$writer) or die $!;
 177         } else {
 178             shift @$proc;
 179             $reader = undef;
 180             $writer = new IO::File $outpcfgz, '>' or die "$outpcfgz $!";
 181         }
 182         if (@$proc) {
 183             my $exe = $proc->[0];
 184             my $child = fork;  defined $child or die $!;
 185             if (!$child) {
 186                 open STDIN, '<&', $current or die $!;
 187                 open STDOUT, '>&', $writer or die $!;
 188                 if (!$isfinal) {
 189                     close $reader or die $!;
 190                 }
 191                 close $usread or die $! if $usread;
 192                 close $uswrite or die $! if $uswrite;
 193                 exec $exe @$proc or die "$exe $!";
 194             }
 195             push @children, [ $child, $exe, defined $usread ];
 196             close $current or die $!;
 197             close $writer or die $!;
 198             $current = $reader;
 199         } else {
 200             $usread = $current;
 201             $uswrite = $writer;
 202             $current = $reader;
 203         }
 204     }
 205     my $r = processbdf($usread,$uswrite,$logfile,$what);
 206     my $none = $r !~ m/^\d/;
 207     if ($none) {
 208         flush $uswrite or die $!;
 209     } else {
 210         close $uswrite or die $!;
 211     }
 212     close $usread or die $!;
 213     foreach my $chinfo (@children) {
 214         my ($child,$exe,$isoutput)=@$chinfo;
 215         my $sigok = 0;
 216         if ($none) {
 217             if ($isoutput) {
 218                 $sigok = 9;
 219                 kill 9, $child or die "$child $!";
 220             } else {
 221                 $sigok = 13;
 222             }
 223         }
 224         $!=0; waitpid($child, 0) == $child or die "$child $!";
 225         !$? or ($?&~128)==$sigok or die "$exe [$child] $sigok $?";
 226     }
 227     return $r;
 228 }
 229
 230 sub processfontdir ($) {
 231     my ($fontdir) = @_;
 232     if (!opendir FD, $fontdir) {
 233         die "$fontdir $!" unless $!==&ENOENT;
 234         return;
 235     }
 236     my $changed = 0;
 237     my $olddone = do "$fontdir/$donefile";
 238     if (!$olddone) {
 239         die "$fontdir $! $@ " unless $!==&ENOENT;
 240     } elsif ($olddone->{''} ne $foundryinfo) {
 241         our $repro_reported;
 242         print $reportfh "reprocessing fonts (rules updated)\n" or die $!
 243             unless $repro_reported++;
 244         $olddone = undef;
 245     }
 246     if (!$olddone) {
 247         $olddone = { };
 248         $changed = 1;
 249     }
 250     my $newdone = { '' => $foundryinfo };
 251     my $log = new IO::File "$fontdir/$logfile", "w"
 252         or die "$fontdir/$logfile $!";
 253     my %outfiles; # bitmask: 1 /*exists*/ | 2 /*wanted*/
 254     my $updated=0;
 255     my $reported=0;
 256     my $anypcfs=0;
 257
 258     flush $reportfh or die $!;
 259     while (my $dent = scalar readdir FD) {
 260         if ($dent =~ m/^\Q$fontprefix\E.*\.new$/) {
 261             unlink "$fontdir/$dent" or $!==&ENOENT or die "$fontdir $dent $!";
 262             next;
 263         }
 264         next unless $dent =~ m/^[^.\/].*\.pcf\.gz$/;
 265         print $reportfh "processing $fontdir...\n" or die $!
 266             unless $reported++;
 267         if ($dent =~ m/^\Q$fontprefix/) {
 268             $outfiles{$dent} |= 1;
 269             next;
 270         }
 271         if (!stat "$fontdir/$dent") {
 272             die "$fontdir $dent $!" unless $!==&ENOENT;
 273             next;
 274         }
 275         die "$fontdir $dent" unless -f _;
 276         $anypcfs++;
 277
 278         my $stats = statsummary();
 279         my $tdone = $olddone->{$dent};
 280         my $outdent = $fontprefix.$dent;
 281         if (defined $tdone && $tdone eq $stats) {
 282             $outfiles{$outdent} |= 2;
 283             $newdone->{$dent} = $stats;
 284             next;
 285         }
 286
 287         my $r = processpcfgz("$fontdir/$dent",
 288                              "$fontdir/$outdent.new",
 289                              $log, $dent);
 290         if ($r !~ m/^\d/) {
 291             printf $log "%s: unchanged - %s\n", $dent, $r;
 292             unlink "$fontdir/$outdent.new" or die "$fontdir $outdent $!";
 293         } else {
 294             rename "$fontdir/$outdent.new", "$fontdir/$outdent"
 295                 or die "$fontdir $outdent $!";
 296             $updated++;
 297             $outfiles{$outdent} |= 3;
 298         }
 299         $newdone->{$dent} = $stats;
 300         $changed = 1;
 301     }
 302     my $affected=0;
 303     foreach my $olddent (keys %outfiles) {
 304         my $state = $outfiles{$olddent};
 305         if ($state & 2) {
 306             $affected++ if $state & 1;
 307             next;
 308         }
 309         unlink "$fontdir/$olddent" or die "$fontdir $olddent $!";
 310         $changed = 1;
 311         $updated++;
 312     }
 313     if (!stat "$fontdir/fonts.dir") {
 314         $!==&ENOENT or die "$fontdir $!";
 315     } else {
 316         $!=0; $?=0; system 'mkfontdir',$fontdir;
 317         die "$fontdir $? $!" if $? or $!;
 318     }
 319     if (!$anypcfs) {
 320         unlink "$fontdir/$logfile" or die "$fontdir $!";
 321         unlink "$fontdir/$donefile" or $!==&ENOENT or die "$fontdir $!";
 322     } elsif ($changed) {
 323         my $newdoneh = new IO::File "$fontdir/$donefile.new", 'w'
 324             or die "$fontdir $!";
 325         print $newdoneh Dumper($newdone) or die "$fontdir $!";
 326         close $newdoneh or die "$fontdir $!";
 327         rename "$fontdir/$donefile.new","$fontdir/$donefile"
 328             or die "$fontdir $!";
 329     }
 330     if ($reported || %$newdone || $affected || $updated) {
 331         printf " processed %s: %d pcfs, %d affected, %d updated.\n",
 332             $fontdir, (scalar keys %$newdone), $affected, $updated;
 333     }
 334 }
 335
 336 sub processfonttree ($) {
 337     my ($tree) = @_;
 338     find({ follow => 1,
 339            dangling_symlinks => 0,
 340            no_chdir => 1,
 341            wanted => sub {
 342                return unless -d _;
 343                processfontdir($File::Find::name);
 344            }},
 345          $tree);
 346 }
 347
 348 our $stdin = new IO::File '<&STDIN' or die $!;
 349 our $stdout = new IO::File '>&STDOUT' or die $!;
 350 our $stderr = new IO::File '>&STDERR' or die $!;
 351 $reportfh = $stdout;
 352
 353 our (@options)=(
 354     'R|rules-include=s@' => \@rulespath,
 355     'share-dir=s' => \$sharedir,
 356     'verbose|v+' => \$verbose,
 357     );
 358
 359 sub define_mode ($$) {
 360     my ($optname,$f) = @_;
 361     push @options, $optname, sub {
 362         die "only one mode may be specified\n" if defined $mode;
 363         $mode=$f;
 364     };
 365 }
 366
 367 define_mode('bdf-filter', sub {
 368     die "no arguments allowed with --bdf-filter\n" if @ARGV;
 369     $reportfh = $stderr;
 370     loadfoundries();
 371     my $r = processbdf($stdin,$stdout,$reportfh,'stdin');
 372     if ($r !~ m/^\d/) {
 373         print STDERR "stdin not processed: $r\n";
 374         exit 2;
 375     }
 376 });
 377
 378 define_mode('process-pcf', sub {
 379     die "need source and destination pcf.gz\n" if @ARGV!=2;
 380     loadfoundries();
 381     my $r = processpcfgz($ARGV[0],$ARGV[1],$reportfh,"pcf");
 382     if ($r !~ m/^\d/) {
 383         print STDERR "pcf not processed: $r\n";
 384         exit 2;
 385     }
 386 });
 387
 388 define_mode('process-fontdirs', sub {
 389     die "need font dir(s)\n" unless @ARGV;
 390     loadfoundries();
 391     foreach my $d (@ARGV) {
 392         processfontdir($d);
 393     }
 394 });
 395
 396 define_mode('process-fonttrees', sub {
 397     die "need font tree(s)\n" unless @ARGV;
 398     loadfoundries();
 399     foreach my $d (@ARGV) {
 400         processfonttree($d);
 401     }
 402 });
 403
 404 define_mode('update', sub {
 405     die "no arguments allowed with --postinst\n" unless !@ARGV;
 406     loadfoundries();
 407     foreach my $d (@fonttrees) {
 408         processfonttree($d);
 409     }
 410 });
 411
 412 Getopt::Long::Configure(qw(bundling));
 413 GetOptions(@options) or exit 127;
 414
 415 push @rulespath, "$sharedir/rules";
 416
 417 die "need a mode\n" unless $mode;
 418
 419 $mode->();