/usr/bin/update-xfonts-traditional is in xfonts-traditional 1.7.1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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use strict;
use POSIX;
use IO::File;
use Getopt::Long;
use File::Glob qw(:glob);
use Data::Dumper;
use IO::Pipe;
use File::Find;
use Sys::CPU;
our $prefix="/usr";
our $package='xfonts-traditional';
our $sharedir="$prefix/share/$package";
our @fonttrees=qw(/usr/share/fonts/X11 /usr/local/share/fonts/X11);
our $donefile="$package.done";
our $logfile="$package.log";
our $fontprefix="trad--";
our @rulespath;
our $mode;
our %foundrymap;
our $verbose=0;
our $reportfh;
our $foundryinfo;
our %props;
our $tolerate_bad_fonts=1;
our $always_reprocess;
our $wanted_parallel;
sub reportloaded {
return unless $verbose;
print $reportfh @_,"\n" or die $!;
}
sub statsummary () {
return join ' ', ((stat _)[1,7,9,10]);
}
sub loadrules ($) {
my ($key) = @_;
our %cache;
my $fc=$cache{$key};
return $fc if $fc;
foreach my $path (@rulespath) {
my $script="$path/$key.rules";
$!=0; $@=''; my $f = do $script;
if (defined $f) {
reportloaded("rules: loaded ",$script);
$cache{$key}=$f;
return $f;
}
die "$! $? $script" unless $! == &ENOENT;
}
return $cache{$key}=undef;
}
sub processbdf ($$$$) {
my ($inbdf,$outbdf,$logfile,$what) = @_;
my $state='idle';
my ($foundry,$font);
my ($w,$h,$xo,$yo,$y,$bitmap,$glyph);
my $modified=0;
%props = ();
my $anyinput=0;
while (<$inbdf>) {
$anyinput=1;
if ($state eq 'bitmap' && $y==$h) {
$glyph = uc $glyph;
$glyph =~ s/\;$//;
local ($_) = $glyph;
my $key= sprintf "%s,%d,%d,%d,%d", $foundry,$w,$h,$xo,$yo;
my $rules= loadrules($key);
return 'no rules' if !$rules;
$rules->();
$modified += ($_ ne $glyph);
print $outbdf $_,"\n" or die $!
foreach split /\;/, $_; # /;
$state='idle';
}
if ($state eq 'bitmap') {
m/^([0-9a-fA-F]+)\s+$/ or die $y;
length($1) == (($w+7 >> 3) << 1) or die "$1 $w";
$glyph .= "$1;";
$y++;
next;
}
if ($state eq 'idle' && m/^FOUNDRY\s+/) {
die if defined $foundry;
return 'foundry syntax' unless m/^FOUNDRY\s+\"(\w+)\"\s+/;
$foundry = $foundrymap{lc $1};
return 'no foundry' unless defined $foundry;
$_ = "FOUNDRY \"$foundry\"\n";
}
if ($state eq 'idle' && m/^FONT\s+/) {
die if defined $font;
return 'simple font name' unless m/^(FONT\s+)\-(\w+)\-/;
$font = $foundrymap{lc $2};
return 'no foundry' unless defined $font;
$_ = "FONT -$font-$'";
}
if ($state eq 'idle' && m/^STARTCHAR\s/) {
die unless defined $foundry;
die unless defined $font;
return 'foundry != font' unless $foundry eq $font;
$state='startchar';
$w=undef;
}
if (($state eq 'idle' || $state eq 'startchar') &&
m/^([A-Z_]+)\s+(.*\S)\s+$/) {
$props{$1}=$2;
}
if ($state eq 'startchar') {
if (m/^BBX\s+(\+?\d+)\s+(\+?\d+)\s+([-+]?\d+)\s+([-+]?\d+)\s+$/) {
($w,$h,$xo,$yo) = ($1,$2,$3,$4);
}
if (m/^BITMAP\s+$/) {
die unless defined $w;
$y=0;
$glyph='';
$state='bitmap';
$props{' 7bit'}=
($props{'CHARSET_REGISTRY'} =~ m/iso8859|utf|iso10646/i &&
$props{'ENCODING'} <= 127);
}
}
print $outbdf $_ or die $!;
}
die $! if $inbdf->error;
die $! if $outbdf->error or !$outbdf->flush;
die unless $state eq 'idle';
return 'no bdf data' # also special cased in processpcfgz
if !$anyinput;
if ($modified) {
printf $logfile "%s: %d glyphs changed\n", $what, $modified
or die $!;
} else {
printf $logfile "%s: unchanged - no rules matched\n", $what
or die $!;
}
return $modified;
}
sub loadfoundries () {
$foundryinfo = '';
foreach my $path (@rulespath) {
if (!stat $path) {
die "$path $!" unless $!==&ENOENT;
next;
}
$foundryinfo .= statsummary().' '.$path."\0\n";
my $p = "$path/foundries";
my $f = new IO::File $p;
if (!$f) {
die "$p $!" unless $!==&ENOENT;
print $reportfh "foundries: none in $p\n" or die $! if $verbose;
next;
}
stat $f or die $!;
while (<$f>) {
s/^\s*//; s/\s+$//;
next if m/^\#/;
m/^(\w+)\s+(\w+)$/ or die;
my $k = lc $1;
next if exists $foundrymap{$k};
$foundrymap{$k}=$2;
}
$f->error and die $!;
reportloaded('foundries: loaded ',$p);
}
die "no foundry maps\n" unless %foundrymap;
}
sub processpcfgz ($$$$) {
my ($inpcfgz,$outpcfgz,$logfile,$what) = @_;
print $reportfh "processing $inpcfgz to $outpcfgz\n" if $verbose>=2;
my $current = new IO::File $inpcfgz, '<' or die "$inpcfgz $!";
my ($usread,$uswrite);
my ($reader,$writer);
my @children;
my %ch;
foreach my $proc (['gunzip'], ['pcf2bdf'], [],
['bdftopcf'],['',qw(gzip -1 -n)]) {
my $isfinal = (@$proc && $proc->[0] eq '');
if (!$isfinal) {
$reader = new IO::Handle or die $!;
$writer = new IO::Handle or die $!;
new IO::Pipe($reader,$writer) or die $!;
} else {
shift @$proc;
$reader = undef;
$writer = new IO::File $outpcfgz, '>' or die "$outpcfgz $!";
}
if (@$proc) {
my $exe = $proc->[0];
my $child = fork; defined $child or die $!;
if (!$child) {
open STDIN, '<&', $current or die $!;
open STDOUT, '>&', $writer or die $!;
if (!$isfinal) {
close $reader or die $!;
}
close $usread or die $! if $usread;
close $uswrite or die $! if $uswrite;
exec $exe @$proc or die "$exe $!";
}
my $ch = {
Pid => $child,
Exe => $exe,
Stage => (!$exe ? 'self' : defined $usread ? 'out' : 'in'),
SigOK => { },
};
push @children, $ch;
$ch{$exe} = $ch;
close $current or die $!;
close $writer or die $!;
$current = $reader;
} else {
$usread = $current;
$uswrite = $writer;
$current = $reader;
}
}
my $r = processbdf($usread,$uswrite,$logfile,$what);
my $none = $r !~ m/^\d/;
$ch{'gunzip'}{SigOK}{13} = 1;
# ... we never care if pcf2bdf didn't want all the output from gunzip
if ($none || !$r) {
# We're not going to install or use this so we can kill our
# input and output filters. We kill the input filters so that
# we don't risk waiting for them. (If the input filter died
# for some other reason then sending it a KILL now won't
# affect its exit status.) We kill the output filters (before
# we close the output pipe) so we don't produce messages from
# our output filters about corrupted data.
flush $uswrite or die $!;
foreach my $ch (@children) {
if ($ch->{Stage} ne 'self') {
kill 9, $ch->{Pid} or die "$ch->{Pid} $ch->{Exe} $!";
$ch->{SigOK}{9} = 1;
}
}
$ch{'pcf2bdf'}{SigOK}{13} = 1;
# ... we might not have read all the output from pcf2bdf, which is OK
}
close $uswrite or die $!;
close $usread or die $!;
foreach my $ch (@children) {
$!=0; waitpid($ch->{Pid}, 0) == $ch->{Pid} or
die "$ch->{Pid} $ch->{Exe} $!";
$ch->{St} = $?;
}
my $st_isok = sub {
my ($ch) = @_;
my $st = $ch->{St};
return !$st || $ch->{SigOK}{($st & ~128)};
};
if ($tolerate_bad_fonts &&
$r eq 'no bdf data' &&
$st_isok->($ch{'gunzip'}) &&
($ch{'pcf2bdf'}{St} & ~128) == 6)
{
$r = "pcf2bdf failed ($ch{'pcf2bdf'}{St})";
print STDERR "warning: $r: skipping $inpcfgz\n";
$ch{'pcf2bdf'}{SigOK}{6} = 1;
}
foreach my $ch (@children) {
if (!$st_isok->($ch)) {
die "update-xfonts-traditional:".
" $ch->{Exe} [$ch->{Pid}] for $inpcfgz".
" failed $ch->{St}".
" (".(join ' ', keys %{ $ch->{SigOK} })." ok)\n";
}
}
return $r;
}
sub processfontdir ($) {
my ($fontdir) = @_;
if (!opendir FD, $fontdir) {
die "$fontdir $!" unless $!==&ENOENT;
return;
}
my $changed = 0;
my $olddone;
if (!$always_reprocess) {
$olddone = do "$fontdir/$donefile";
if (!$olddone) {
die "$fontdir $! $@ " unless $!==&ENOENT;
} elsif ($olddone->{''} ne $foundryinfo) {
our $repro_reported;
print $reportfh "reprocessing fonts (rules updated)\n" or die $!
unless $repro_reported++;
$olddone = undef;
}
}
if (!$olddone) {
$olddone = { };
$changed = 1;
}
my $newdone = { '' => $foundryinfo };
my %outfiles; # bitmask: 1 /*exists*/ | 2 /*wanted*/
my $updated=0;
my $reported=0;
my $anypcfs=0;
my $logpath = "$fontdir/$logfile";
unlink "$logpath" or $!==&ENOENT or die "$logpath $!";
my $log = new IO::File $logpath, ">>" or die "$logpath $!";
if (!$wanted_parallel) {
$wanted_parallel = Sys::CPU::cpu_count();
printf $reportfh "parallelism: %d\n", $wanted_parallel if $verbose>=2;
}
$wanted_parallel = 1 if $wanted_parallel < 1;
our %inprogress;
my $await = sub {
my $child = wait;
die $! unless defined $child;
my $job = $inprogress{$child};
die $child unless $job;
my $dent = $job->{Dent};
my $outdent = $job->{Outdent};
my $stats = $job->{Stats};
if ($?==0) {
$updated++;
$outfiles{$outdent} |= 3;
} elsif ($?==2*256) {
} else {
die "update-xfonts-traditional: processing of".
" $fontdir/$dent [$child] failed ($?)\n";
}
$newdone->{$dent} = $stats;
$changed = 1;
delete $inprogress{$child};
};
flush $reportfh or die $!;
while (my $dent = scalar readdir FD) {
if ($dent =~ m/^\Q$fontprefix\E.*\.new$/) {
unlink "$fontdir/$dent" or $!==&ENOENT or die "$fontdir $dent $!";
next;
}
next unless $dent =~ m/^[^.\/].*\.pcf\.gz$/;
print $reportfh "processing $fontdir...\n" or die $!
unless $reported++;
if ($dent =~ m/^\Q$fontprefix/) {
$outfiles{$dent} |= 1;
next;
}
if (!stat "$fontdir/$dent") {
die "$fontdir $dent $!" unless $!==&ENOENT;
next;
}
die "$fontdir $dent" unless -f _;
$anypcfs++;
my $stats = statsummary();
my $tdone = $olddone->{$dent};
my $outdent = $fontprefix.$dent;
if (defined $tdone && $tdone eq $stats) {
$outfiles{$outdent} |= 2;
$newdone->{$dent} = $stats;
next;
}
$await->() while scalar keys %inprogress >= $wanted_parallel;
my $child = fork; die unless defined $child;
if (!$child) {
my $r = processpcfgz("$fontdir/$dent",
"$fontdir/$outdent.new",
$log, $dent);
my $rc;
if ($r !~ m/^\d/) {
printf $log "%s: unchanged - %s\n", $dent, $r;
unlink "$fontdir/$outdent.new" or die "$fontdir $outdent $!";
$rc = 2;
} else {
rename "$fontdir/$outdent.new", "$fontdir/$outdent"
or die "$fontdir $outdent $!";
$rc = 0;
}
$log->flush or die "$logpath $!";
exit $rc;
}
$inprogress{$child} = {
Dent => $dent,
Outdent => $outdent,
Stats => $stats,
};
}
$await->() while scalar keys %inprogress;
my $affected=0;
foreach my $olddent (keys %outfiles) {
my $state = $outfiles{$olddent};
if ($state & 2) {
$affected++ if $state & 1;
next;
}
unlink "$fontdir/$olddent" or die "$fontdir $olddent $!";
$changed = 1;
$updated++;
}
if (!stat "$fontdir/fonts.dir") {
$!==&ENOENT or die "$fontdir $!";
} else {
$!=0; $?=0; system 'mkfontdir',$fontdir;
die "$fontdir $? $!" if $? or $!;
}
if (!$anypcfs) {
unlink "$logpath" or die "$fontdir $!";
unlink "$fontdir/$donefile" or $!==&ENOENT or die "$fontdir $!";
} elsif ($changed) {
my $newdoneh = new IO::File "$fontdir/$donefile.new", 'w'
or die "$fontdir $!";
print $newdoneh Dumper($newdone) or die "$fontdir $!";
close $newdoneh or die "$fontdir $!";
rename "$fontdir/$donefile.new","$fontdir/$donefile"
or die "$fontdir $!";
}
if ($reported || %$newdone || $affected || $updated) {
printf " processed %s: %d pcfs, %d affected, %d updated.\n",
$fontdir, (scalar keys %$newdone), $affected, $updated;
}
}
sub processfonttree ($) {
my ($tree) = @_;
find({ follow => 1,
dangling_symlinks => 0,
no_chdir => 1,
wanted => sub {
return unless -d _;
processfontdir($File::Find::name);
}},
$tree);
}
our $stdin = new IO::File '<&STDIN' or die $!;
our $stdout = new IO::File '>&STDOUT' or die $!;
our $stderr = new IO::File '>&STDERR' or die $!;
$reportfh = $stdout;
our (@options)=(
'R|rules-include=s@' => \@rulespath,
'share-dir=s' => \$sharedir,
'verbose|v+' => \$verbose,
'j|parallel=i' => \$wanted_parallel,
'always-reprocess!' => \$always_reprocess,
'tolerate-bad-fonts!' => \$tolerate_bad_fonts,
);
sub define_mode ($$) {
my ($optname,$f) = @_;
push @options, $optname, sub {
die "only one mode may be specified\n" if defined $mode;
$mode=$f;
};
}
define_mode('bdf-filter', sub {
die "no arguments allowed with --bdf-filter\n" if @ARGV;
$reportfh = $stderr;
loadfoundries();
my $r = processbdf($stdin,$stdout,$reportfh,'stdin');
if ($r !~ m/^\d/) {
print STDERR "stdin not processed: $r\n";
exit 2;
}
});
define_mode('process-pcf', sub {
die "need source and destination pcf.gz\n" if @ARGV!=2;
loadfoundries();
my $r = processpcfgz($ARGV[0],$ARGV[1],$reportfh,"pcf");
if ($r !~ m/^\d/) {
print STDERR "pcf not processed: $r\n";
exit 2;
}
});
define_mode('process-fontdirs', sub {
die "need font dir(s)\n" unless @ARGV;
loadfoundries();
foreach my $d (@ARGV) {
processfontdir($d);
}
});
define_mode('process-fonttrees', sub {
die "need font tree(s)\n" unless @ARGV;
loadfoundries();
foreach my $d (@ARGV) {
processfonttree($d);
}
});
define_mode('update', sub {
die "no arguments allowed with --postinst\n" unless !@ARGV;
loadfoundries();
foreach my $d (@fonttrees) {
processfonttree($d);
}
});
Getopt::Long::Configure(qw(bundling));
GetOptions(@options) or exit 127;
push @rulespath, "$sharedir/rules";
die "need a mode\n" unless $mode;
$mode->();
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