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#!/usr/bin/perl -w
# Copyright © 2012-2018 Jamie Zawinski <jwz@jwz.org>
#
# Permission to use, copy, modify, distribute, and sell this software and its
# documentation for any purpose is hereby granted without fee, provided that
# the above copyright notice appear in all copies and that both that
# copyright notice and this permission notice appear in supporting
# documentation. No representations are made about the suitability of this
# software for any purpose. It is provided "as is" without express or
# implied warranty.
#
# Generates a .c file that lists all the function tables we use, because
# CFBundleGetDataPointerForName doesn't work in "Archive" builds.
# What a crock of shit.
#
# There's no real way to integrate this into the Xcode build system, so
# run this manually each time a new saver is added to the iOS app.
#
# Created: 14-Jul-2012.
require 5;
#use diagnostics; # Fails on some MacOS 10.5 systems
use strict;
my $progname = $0; $progname =~ s@.*/@@g;
my ($version) = ('$Revision: 1.6 $' =~ m/\s(\d[.\d]+)\s/s);
my $verbose = 1;
# List of savers not included in the iOS build.
#
my %disable = (
'extrusion' => 1,
'glitchpeg' => 1,
'lcdscrub' => 1,
'lockward' => 1,
'webcollage' => 1,
'testx11' => 1,
);
# Parse the RETIRED_EXES variable from the Makefiles to populate %disable.
# Duplicated in ../hacks/munge-ad.pl.
#
sub parse_makefiles() {
foreach my $mf ( "../hacks/Makefile.in", "../hacks/glx/Makefile.in" ) {
open (my $in, '<', $mf) || error ("$mf: $!");
print STDERR "$progname: reading $mf\n" if ($verbose > 1);
local $/ = undef; # read entire file
my $body = <$in>;
close $in;
$body =~ s/\\\n//gs;
my ($var) = ($body =~ m/^RETIRED_EXES\s*=\s*(.*)$/mi);
my ($var2) = ($body =~ m/^RETIRED_GL_EXES\s*=\s*(.*)$/mi);
error ("no RETIRED_EXES in $mf") unless $var;
$var .= " $var2" if $var2;
foreach my $hack (split (/\s+/, $var)) {
$disable{$hack} = 2;
}
}
}
sub build_h($) {
my ($outfile) = @_;
parse_makefiles();
my @schemes = glob('xscreensaver.xcodeproj/xcuserdata/' .
'*.xcuserdatad/xcschemes/*.xcscheme');
error ("no scheme files") unless (@schemes);
my %names = ();
foreach my $s (@schemes) {
open (my $in, '<', $s) || error ("$s: $!");
local $/ = undef; # read entire file
my $body = <$in>;
close $in;
my ($name) = ($body =~ m@BuildableName *= *"([^\"<>]+?)\.saver"@s);
next unless $name;
$name = lc($name);
if ($disable{$name}) {
print STDERR "$progname: skipping $name\n" if ($verbose > 1);
next;
}
print STDERR "$progname: found $name\n" if ($verbose > 1);
$names{$name} = 1;
}
my @names = sort (keys %names);
error ("too few names") if (@names < 100);
my $suf = 'xscreensaver_function_table';
my $body = ("/* Generated file, do not edit.\n" .
" Created: " . localtime() . " by $progname $version.\n" .
" */\n" .
"\n" .
"#import <Foundation/Foundation.h>\n" .
"#import <UIKit/UIKit.h>\n" .
"\n" .
"extern NSDictionary *make_function_table_dict(void);\n" .
"\n");
$body .= "extern struct $suf";
foreach my $s (@names, 'testx11') {
$body .= "\n ${s}_${suf},";
}
$body =~ s/,\s*$/;/s;
sub line($$) {
my ($s, $suf) = @_;
return "\t[NSValue valueWithPointer:&${s}_${suf}], @\"${s}\",\n";
}
$body .= ("\n\n" .
"NSDictionary *make_function_table_dict(void)\n{\n" .
" return\n [NSDictionary dictionaryWithObjectsAndKeys:\n" .
"\n" .
"#if defined(APPLE2_ONLY)\n" .
" " . line('apple2', $suf) .
"#elif defined(PHOSPHOR_ONLY)\n" .
" " . line('phosphor', $suf) .
"#elif defined(TESTX11_ONLY)\n" .
" " . line('testx11', $suf) .
"#else\n");
foreach my $s (@names) { $body .= line($s, $suf); }
$body .= ("#endif\n" .
"\tnil];\n" .
"}\n\n");
my $obody = '';
if (open (my $in, '<', $outfile)) {
local $/ = undef; # read entire file
$obody = <$in>;
close $in;
}
# strip comments/date for diff.
my ($body2, $obody2) = ($body, $obody);
foreach ($body2, $obody2) { s@/\*.*?\*/@@gs; }
if ($body2 eq $obody2) {
print STDERR "$progname: $outfile: unchanged\n" if ($verbose > 1);
} else {
my $file_tmp = "$outfile.tmp";
open (my $out, '>', $file_tmp) || error ("$file_tmp: $!");
print $out $body || error ("$file_tmp: $!");
close $out || error ("$file_tmp: $!");
if (!rename ("$file_tmp", "$outfile")) {
unlink "$file_tmp";
error ("mv \"$file_tmp\" \"$outfile\": $!");
}
print STDERR "$progname: wrote $outfile\n" if ($verbose);
}
}
sub error($) {
my ($err) = @_;
print STDERR "$progname: $err\n";
exit 1;
}
sub usage() {
print STDERR "usage: $progname [--verbose] output.c\n";
exit 1;
}
sub main() {
my ($out);
while ($_ = $ARGV[0]) {
shift @ARGV;
if (m/^--?verbose$/s) { $verbose++; }
elsif (m/^-v+$/) { $verbose += length($_)-1; }
elsif (m/^--?q(uiet)?$/s) { $verbose = 0; }
elsif (m/^-/s) { usage(); }
elsif (! $out) { $out = $_; }
else { usage(); }
}
usage() unless ($out);
build_h ($out);
}
main();
exit 0;
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