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79 lines
2.0 KiB
Perl
Executable File
79 lines
2.0 KiB
Perl
Executable File
#!/usr/bin/perl
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#
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# Copyright (C) 2006 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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use strict;
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my $PATH = $ARGV[0];
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($PATH and -d $PATH) or die 'invalid path';
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my $DEFCONFIG = $ARGV[1];
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($DEFCONFIG and -f $DEFCONFIG) or die 'invalid config file';
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my %config;
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open CONFIG, $DEFCONFIG or die 'cannot open config file';
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while (<CONFIG>) {
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/^CONFIG_([\w_]+)=([ym])/ and $config{$1} = $2;
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/^CONFIG_([\w_]+)=(\d+)/ and $config{$1} = $2;
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/^CONFIG_([\w_]+)=(".+")/ and $config{$1} = $2;
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}
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close CONFIG;
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open FIND, "find \"$PATH\" -name Config.in |";
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while (<FIND>) {
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chomp;
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my $input = $_;
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s/^$PATH\///g;
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s/sysdeps\/linux\///g;
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my $output = $_;
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print STDERR "$input => $output\n";
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$output =~ /^(.+)\/[^\/]+$/ and system("mkdir -p $1");
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open INPUT, $input;
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open OUTPUT, ">$output";
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my ($cur, $default_set, $line);
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while ($line = <INPUT>) {
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next if $line =~ /^\s*mainmenu/;
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# FIXME: make this dynamic
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$line =~ s/default FEATURE_BUFFERS_USE_MALLOC/default FEATURE_BUFFERS_GO_ON_STACK/;
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$line =~ s/default FEATURE_SH_IS_NONE/default FEATURE_SH_IS_ASH/;
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if ($line =~ /^\s*config\s*([\w_]+)/) {
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$cur = $1;
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undef $default_set;
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}
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if ($line =~ /^\s*(menu|choice|end|source)/) {
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undef $cur;
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undef $default_set;
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}
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$line =~ s/^(\s*source\s+)/$1package\/busybox\/config\//;
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$line =~ s/^(\s*(prompt "[^"]+" if|config|depends|depends on|select|default|default \w if)\s+\!?)([A-Z_])/$1BUSYBOX_CONFIG_$3/g;
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$line =~ s/(( \|\| | \&\& | \( )!?)([A-Z_])/$1BUSYBOX_CONFIG_$3/g;
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$line =~ s/(\( ?!?)([A-Z_]+ (\|\||&&))/$1BUSYBOX_CONFIG_$2/g;
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if ($cur) {
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($cur eq 'LFS') and do {
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$line =~ s/^(\s*(bool|tristate|string))\s*".+"$/$1/;
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};
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if ($line =~ /^\s*default/) {
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my $c;
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$default_set = 1;
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$c = $config{$cur} or $c = 'n';
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$line =~ s/^(\s*default\s*)(\w+|"[^"]*")(.*)/$1$c$3/;
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}
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}
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print OUTPUT $line;
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}
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close OUTPUT;
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close INPUT;
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}
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close FIND;
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