scripts/metadata.pl

   1 #!/usr/bin/env perl
   2 use FindBin;
   3 use lib "$FindBin::Bin";
   4 use strict;
   5 use metadata;
   6
   7 my %board;
   8
   9 sub confstr($) {
  10         my $conf = shift;
  11         $conf =~ tr#/\.\-/#___#;
  12         return $conf;
  13 }
  14
  15 sub parse_target_metadata() {
  16         my $file = shift @ARGV;
  17         my ($target, @target, $profile);
  18         my %target;
  19
  20         open FILE, "<$file" or do {
  21                 warn "Can't open file '$file': $!\n";
  22                 return;
  23         };
  24         while (<FILE>) {
  25                 chomp;
  26                 /^Target:\s*(.+)\s*$/ and do {
  27                         my $name = $1;
  28                         $target = {
  29                                 id => $name,
  30                                 board => $name,
  31                                 boardconf => confstr($name),
  32                                 conf => confstr($name),
  33                                 profiles => [],
  34                                 features => [],
  35                                 depends => [],
  36                                 subtargets => []
  37                         };
  38                         push @target, $target;
  39                         $target{$name} = $target;
  40                         if ($name =~ /([^\/]+)\/([^\/]+)/) {
  41                                 push @{$target{$1}->{subtargets}}, $2;
  42                                 $target->{board} = $1;
  43                                 $target->{boardconf} = confstr($1);
  44                                 $target->{subtarget} = 1;
  45                                 $target->{parent} = $target{$1};
  46                         }
  47                 };
  48                 /^Target-Kernel:\s*(\d+\.\d+)\s*$/ and $target->{kernel} = $1;
  49                 /^Target-Name:\s*(.+)\s*$/ and $target->{name} = $1;
  50                 /^Target-Path:\s*(.+)\s*$/ and $target->{path} = $1;
  51                 /^Target-Arch:\s*(.+)\s*$/ and $target->{arch} = $1;
  52                 /^Target-Features:\s*(.+)\s*$/ and $target->{features} = [ split(/\s+/, $1) ];
  53                 /^Target-Depends:\s*(.+)\s*$/ and $target->{depends} = [ split(/\s+/, $1) ];
  54                 /^Target-Description:/ and $target->{desc} = get_multiline(*FILE);
  55                 /^Target-Optimization:\s*(.+)\s*$/ and $target->{cflags} = $1;
  56                 /^Linux-Version:\s*(.+)\s*$/ and $target->{version} = $1;
  57                 /^Linux-Release:\s*(.+)\s*$/ and $target->{release} = $1;
  58                 /^Linux-Kernel-Arch:\s*(.+)\s*$/ and $target->{karch} = $1;
  59                 /^Default-Packages:\s*(.+)\s*$/ and $target->{packages} = [ split(/\s+/, $1) ];
  60                 /^Target-Profile:\s*(.+)\s*$/ and do {
  61                         $profile = {
  62                                 id => $1,
  63                                 name => $1,
  64                                 packages => []
  65                         };
  66                         push @{$target->{profiles}}, $profile;
  67                 };
  68                 /^Target-Profile-Name:\s*(.+)\s*$/ and $profile->{name} = $1;
  69                 /^Target-Profile-Packages:\s*(.*)\s*$/ and $profile->{packages} = [ split(/\s+/, $1) ];
  70                 /^Target-Profile-Description:\s*(.*)\s*/ and $profile->{desc} = get_multiline(*FILE);
  71                 /^Target-Profile-Config:/ and $profile->{config} = get_multiline(*FILE, "\t");
  72                 /^Target-Profile-Kconfig:/ and $profile->{kconfig} = 1;
  73         }
  74         close FILE;
  75         foreach my $target (@target) {
  76                 next if @{$target->{subtargets}} > 0;
  77                 @{$target->{profiles}} > 0 or $target->{profiles} = [
  78                         {
  79                                 id => 'Default',
  80                                 name => 'Default',
  81                                 packages => []
  82                         }
  83                 ];
  84         }
  85         return @target;
  86 }
  87
  88 sub gen_kconfig_overrides() {
  89         my %config;
  90         my %kconfig;
  91         my $package;
  92         my $pkginfo = shift @ARGV;
  93         my $cfgfile = shift @ARGV;
  94
  95         # parameter 2: build system config
  96         open FILE, "<$cfgfile" or return;
  97         while (<FILE>) {
  98                 /^(CONFIG_.+?)=(.+)$/ and $config{$1} = 1;
  99         }
 100         close FILE;
 101
 102         # parameter 1: package metadata
 103         open FILE, "<$pkginfo" or return;
 104         while (<FILE>) {
 105                 /^Package:\s*(.+?)\s*$/ and $package = $1;
 106                 /^Kernel-Config:\s*(.+?)\s*$/ and do {
 107                         my @config = split /\s+/, $1;
 108                         foreach my $config (@config) {
 109                                 my $val = 'm';
 110                                 my $override;
 111                                 if ($config =~ /^(.+?)=(.+)$/) {
 112                                         $config = $1;
 113                                         $override = 1;
 114                                         $val = $2;
 115                                 }
 116                                 if ($config{"CONFIG_PACKAGE_$package"} and ($config ne 'n')) {
 117                                         $kconfig{$config} = $val;
 118                                 } elsif (!$override) {
 119                                         $kconfig{$config} or $kconfig{$config} = 'n';
 120                                 }
 121                         }
 122                 };
 123         };
 124         close FILE;
 125
 126         foreach my $kconfig (sort keys %kconfig) {
 127                 if ($kconfig{$kconfig} eq 'n') {
 128                         print "# $kconfig is not set\n";
 129                 } else {
 130                         print "$kconfig=$kconfig{$kconfig}\n";
 131                 }
 132         }
 133 }
 134
 135 sub merge_package_lists($$) {
 136         my $list1 = shift;
 137         my $list2 = shift;
 138         my @l = ();
 139         my %pkgs;
 140
 141         foreach my $pkg (@$list1, @$list2) {
 142                 $pkgs{$pkg} = 1;
 143         }
 144         foreach my $pkg (keys %pkgs) {
 145                 push @l, $pkg unless ($pkg =~ /^-/ or $pkgs{"-$pkg"});
 146         }
 147         return sort(@l);
 148 }
 149
 150 sub target_config_features(@) {
 151         my $ret;
 152
 153         while ($_ = shift @_) {
 154                 /broken/ and $ret .= "\tdepends BROKEN\n";
 155                 /display/ and $ret .= "\tselect DISPLAY_SUPPORT\n";
 156                 /gpio/ and $ret .= "\tselect GPIO_SUPPORT\n";
 157                 /pci/ and $ret .= "\tselect PCI_SUPPORT\n";
 158                 /usb/ and $ret .= "\tselect USB_SUPPORT\n";
 159                 /pcmcia/ and $ret .= "\tselect PCMCIA_SUPPORT\n";
 160                 /squashfs/ and $ret .= "\tselect USES_SQUASHFS\n";
 161                 /jffs2/ and $ret .= "\tselect USES_JFFS2\n";
 162                 /ext2/ and $ret .= "\tselect USES_EXT2\n";
 163                 /tgz/ and $ret .= "\tselect USES_TGZ\n";
 164                 /cpiogz/ and $ret .= "\tselect USES_CPIOGZ\n";
 165                 /fpu/ and $ret .= "\tselect HAS_FPU\n";
 166         }
 167         return $ret;
 168 }
 169
 170 sub target_name($) {
 171         my $target = shift;
 172         my $parent = $target->{parent};
 173         if ($parent) {
 174                 return $target->{parent}->{name}." - ".$target->{name};
 175         } else {
 176                 return $target->{name};
 177         }
 178 }
 179
 180 sub kver($) {
 181         my $v = shift;
 182         $v =~ tr/\./_/;
 183         $v =~ /(\d+_\d+_\d+)(_\d+)?/ and $v = $1;
 184         return $v;
 185 }
 186
 187 sub print_target($) {
 188         my $target = shift;
 189         my $features = target_config_features(@{$target->{features}});
 190         my $help = $target->{desc};
 191         my $kernel = $target->{kernel};
 192         my $confstr;
 193         $kernel =~ tr/./_/;
 194
 195         chomp $features;
 196         $features .= "\n";
 197         if ($help =~ /\w+/) {
 198                 $help =~ s/^\s*/\t  /mg;
 199                 $help = "\thelp\n$help";
 200         } else {
 201                 undef $help;
 202         }
 203
 204         my $v = kver($target->{version});
 205         if (@{$target->{subtargets}} == 0) {
 206         $confstr = <<EOF;
 207 config TARGET_$target->{conf}
 208         bool "$target->{name}"
 209         select LINUX_$kernel
 210         select LINUX_$v
 211 EOF
 212         }
 213         else {
 214                 $confstr = <<EOF;
 215 config TARGET_$target->{conf}
 216         bool "$target->{name}"
 217 EOF
 218         }
 219         if ($target->{subtarget}) {
 220                 $confstr .= "\tdepends TARGET_$target->{boardconf}\n";
 221         }
 222         if (@{$target->{subtargets}} > 0) {
 223                 $confstr .= "\tselect HAS_SUBTARGETS\n";
 224         } else {
 225                 $confstr .= "\tselect $target->{arch}\n";
 226                 foreach my $dep (@{$target->{depends}}) {
 227                         my $mode = "depends";
 228                         my $flags;
 229                         my $name;
 230
 231                         $dep =~ /^([@\+\-]+)(.+)$/;
 232                         $flags = $1;
 233                         $name = $2;
 234
 235                         next if $name =~ /:/;
 236                         $flags =~ /-/ and $mode = "deselect";
 237                         $flags =~ /\+/ and $mode = "select";
 238                         $flags =~ /@/ and $confstr .= "\t$mode $name\n";
 239                 }
 240                 $confstr .= $features;
 241         }
 242
 243         $confstr .= "$help\n\n";
 244         print $confstr;
 245 }
 246
 247 sub gen_target_config() {
 248         my @target = parse_target_metadata();
 249         my %defaults;
 250
 251         my @target_sort = sort {
 252                 target_name($a) cmp target_name($b);
 253         } @target;
 254
 255
 256         print <<EOF;
 257 choice
 258         prompt "Target System"
 259         default TARGET_brcm_2_4
 260         reset if !DEVEL
 261
 262 EOF
 263
 264         foreach my $target (@target_sort) {
 265                 next if $target->{subtarget};
 266                 print_target($target);
 267         }
 268
 269         print <<EOF;
 270 endchoice
 271
 272 choice
 273         prompt "Subtarget" if HAS_SUBTARGETS
 274
 275 EOF
 276         foreach my $target (@target) {
 277                 next unless $target->{subtarget};
 278                 print_target($target);
 279         }
 280
 281 print <<EOF;
 282 endchoice
 283
 284 choice
 285         prompt "Target Profile"
 286
 287 EOF
 288
 289         foreach my $target (@target) {
 290                 my $profiles = $target->{profiles};
 291
 292                 foreach my $profile (@$profiles) {
 293                         print <<EOF;
 294 config TARGET_$target->{conf}_$profile->{id}
 295         bool "$profile->{name}"
 296         depends TARGET_$target->{conf}
 297 $profile->{config}
 298 EOF
 299                         $profile->{kconfig} and print "\tselect PROFILE_KCONFIG\n";
 300                         my @pkglist = merge_package_lists($target->{packages}, $profile->{packages});
 301                         foreach my $pkg (@pkglist) {
 302                                 print "\tselect DEFAULT_$pkg\n";
 303                                 $defaults{$pkg} = 1;
 304                         }
 305                         my $help = $profile->{desc};
 306                         if ($help =~ /\w+/) {
 307                                 $help =~ s/^\s*/\t  /mg;
 308                                 $help = "\thelp\n$help";
 309                         } else {
 310                                 undef $help;
 311                         }
 312                         print "$help\n";
 313                 }
 314         }
 315
 316         print <<EOF;
 317 endchoice
 318
 319 config HAS_SUBTARGETS
 320         bool
 321
 322 config TARGET_BOARD
 323         string
 324
 325 EOF
 326         foreach my $target (@target) {
 327                 $target->{subtarget} or print "\t\tdefault \"".$target->{board}."\" if TARGET_".$target->{conf}."\n";
 328         }
 329         print <<EOF;
 330
 331 config DEFAULT_TARGET_OPTIMIZATION
 332         string
 333 EOF
 334         foreach my $target (@target) {
 335                 next if @{$target->{subtargets}} > 0;
 336                 print "\tdefault \"".$target->{cflags}."\" if TARGET_".$target->{conf}."\n";
 337         }
 338         print "\tdefault \"-Os -pipe -funit-at-a-time\"\n";
 339
 340         my %kver;
 341         foreach my $target (@target) {
 342                 my $v = kver($target->{version});
 343                 next if $kver{$v};
 344                 $kver{$v} = 1;
 345                 print <<EOF;
 346
 347 config LINUX_$v
 348         bool
 349
 350 EOF
 351         }
 352         foreach my $def (sort keys %defaults) {
 353                 print "\tconfig DEFAULT_".$def."\n";
 354                 print "\t\tbool\n\n";
 355         }
 356 }
 357
 358 my %dep_check;
 359 sub __find_package_dep($$) {
 360         my $pkg = shift;
 361         my $name = shift;
 362         my $deps = ($pkg->{vdepends} or $pkg->{depends});
 363
 364         return 0 unless defined $deps;
 365         foreach my $dep (@{$deps}) {
 366                 next if $dep_check{$dep};
 367                 $dep_check{$dep} = 1;
 368                 return 1 if $dep eq $name;
 369                 return 1 if ($package{$dep} and (__find_package_dep($package{$dep},$name) == 1));
 370         }
 371         return 0;
 372 }
 373
 374 # wrapper to avoid infinite recursion
 375 sub find_package_dep($$) {
 376         my $pkg = shift;
 377         my $name = shift;
 378
 379         %dep_check = ();
 380         return __find_package_dep($pkg, $name);
 381 }
 382
 383 sub package_depends($$) {
 384         my $a = shift;
 385         my $b = shift;
 386         my $ret;
 387
 388         return 0 if ($a->{submenu} ne $b->{submenu});
 389         if (find_package_dep($a, $b->{name}) == 1) {
 390                 $ret = 1;
 391         } elsif (find_package_dep($b, $a->{name}) == 1) {
 392                 $ret = -1;
 393         } else {
 394                 return 0;
 395         }
 396         return $ret;
 397 }
 398
 399 sub mconf_depends {
 400         my $pkgname = shift;
 401         my $depends = shift;
 402         my $only_dep = shift;
 403         my $res;
 404         my $dep = shift;
 405         my $seen = shift;
 406         my $parent_condition = shift;
 407         $dep or $dep = {};
 408         $seen or $seen = {};
 409
 410         $depends or return;
 411         my @depends = @$depends;
 412         foreach my $depend (@depends) {
 413                 my $m = "depends";
 414                 $depend =~ s/^([@\+]+)//;
 415                 my $flags = $1;
 416                 my $vdep;
 417                 my $condition;
 418
 419                 if ($depend =~ /^(.+):(.+)$/) {
 420                         if ($1 ne "PACKAGE_$pkgname") {
 421                                 if ($parent_condition) {
 422                                         $condition = "$parent_condition && $1";
 423                                 } else {
 424                                         $condition = $1;
 425                                 }
 426                         }
 427                         $depend = $2;
 428                 }
 429                 next if $seen->{$depend};
 430                 next if $package{$depend} and $package{$depend}->{buildonly};
 431                 $seen->{$depend} = 1;
 432                 if ($vdep = $package{$depend}->{vdepends}) {
 433                         $depend = join("||", map { "PACKAGE_".$_ } @$vdep);
 434                 } else {
 435                         $flags =~ /\+/ and do {
 436                                 # Menuconfig will not treat 'select FOO' as a real dependency
 437                                 # thus if FOO depends on other config options, these dependencies
 438                                 # will not be checked. To fix this, we simply emit all of FOO's
 439                                 # depends here as well.
 440                                 $package{$depend} and mconf_depends($pkgname, $package{$depend}->{depends}, 1, $dep, $seen, $condition);
 441
 442                                 $m = "select";
 443                                 next if $only_dep;
 444                         };
 445                         $flags =~ /@/ or $depend = "PACKAGE_$depend";
 446                         if ($condition) {
 447                                 if ($m =~ /select/) {
 448                                         $depend = "$depend if $condition";
 449                                 } else {
 450                                         $depend = "!($condition) || $depend";
 451                                 }
 452                         }
 453                 }
 454                 $dep->{$depend} =~ /select/ or $dep->{$depend} = $m;
 455         }
 456         foreach my $depend (keys %$dep) {
 457                 my $m = $dep->{$depend};
 458                 $res .= "\t\t$m $depend\n";
 459         }
 460         return $res;
 461 }
 462
 463 sub print_package_config_category($) {
 464         my $cat = shift;
 465         my %menus;
 466         my %menu_dep;
 467
 468         return unless $category{$cat};
 469
 470         print "menu \"$cat\"\n\n";
 471         my %spkg = %{$category{$cat}};
 472
 473         foreach my $spkg (sort {uc($a) cmp uc($b)} keys %spkg) {
 474                 foreach my $pkg (@{$spkg{$spkg}}) {
 475                         next if $pkg->{buildonly};
 476                         my $menu = $pkg->{submenu};
 477                         if ($menu) {
 478                                 $menu_dep{$menu} or $menu_dep{$menu} = $pkg->{submenudep};
 479                         } else {
 480                                 $menu = 'undef';
 481                         }
 482                         $menus{$menu} or $menus{$menu} = [];
 483                         push @{$menus{$menu}}, $pkg;
 484                 }
 485         }
 486         my @menus = sort {
 487                 ($a eq 'undef' ?  1 : 0) or
 488                 ($b eq 'undef' ? -1 : 0) or
 489                 ($a cmp $b)
 490         } keys %menus;
 491
 492         foreach my $menu (@menus) {
 493                 my @pkgs = sort {
 494                         package_depends($a, $b) or
 495                         ($a->{name} cmp $b->{name})
 496                 } @{$menus{$menu}};
 497                 if ($menu ne 'undef') {
 498                         $menu_dep{$menu} and print "if $menu_dep{$menu}\n";
 499                         print "menu \"$menu\"\n";
 500                 }
 501                 foreach my $pkg (@pkgs) {
 502                         my $title = $pkg->{name};
 503                         my $c = (72 - length($pkg->{name}) - length($pkg->{title}));
 504                         if ($c > 0) {
 505                                 $title .= ("." x $c). " ". $pkg->{title};
 506                         }
 507                         print "\t";
 508                         $pkg->{menu} and print "menu";
 509                         print "config PACKAGE_".$pkg->{name}."\n";
 510                         print "\t\t".($pkg->{tristate} ? 'tristate' : 'bool')." \"$title\"\n";
 511                         print "\t\tdefault y if DEFAULT_".$pkg->{name}."\n";
 512                         foreach my $default (split /\s*,\s*/, $pkg->{default}) {
 513                                 print "\t\tdefault $default\n";
 514                         }
 515                         print mconf_depends($pkg->{name}, $pkg->{depends}, 0);
 516                         print "\t\thelp\n";
 517                         print $pkg->{description};
 518                         print "\n";
 519
 520                         $pkg->{config} and print $pkg->{config}."\n";
 521                 }
 522                 if ($menu ne 'undef') {
 523                         print "endmenu\n";
 524                         $menu_dep{$menu} and print "endif\n";
 525                 }
 526         }
 527         print "endmenu\n\n";
 528
 529         undef $category{$cat};
 530 }
 531
 532 sub gen_package_config() {
 533         parse_package_metadata($ARGV[0]) or exit 1;
 534         print "menuconfig UCI_PRECONFIG\n\tbool \"Image configuration\"\n" if %preconfig;
 535         foreach my $preconfig (keys %preconfig) {
 536                 foreach my $cfg (keys %{$preconfig{$preconfig}}) {
 537                         my $conf = $preconfig{$preconfig}->{$cfg}->{id};
 538                         $conf =~ tr/\.-/__/;
 539                         print <<EOF
 540         config UCI_PRECONFIG_$conf
 541                 string "$preconfig{$preconfig}->{$cfg}->{label}" if UCI_PRECONFIG
 542                 depends PACKAGE_$preconfig
 543                 default "$preconfig{$preconfig}->{$cfg}->{default}"
 544
 545 EOF
 546                 }
 547         }
 548         print_package_config_category 'Base system';
 549         foreach my $cat (keys %category) {
 550                 print_package_config_category $cat;
 551         }
 552 }
 553
 554 sub gen_package_mk() {
 555         my %conf;
 556         my %dep;
 557         my %done;
 558         my $line;
 559
 560         parse_package_metadata($ARGV[0]) or exit 1;
 561         foreach my $name (sort {uc($a) cmp uc($b)} keys %package) {
 562                 my $config;
 563                 my $pkg = $package{$name};
 564                 my @srcdeps;
 565
 566                 next if defined $pkg->{vdepends};
 567
 568                 if ($ENV{SDK}) {
 569                         $conf{$pkg->{src}} or do {
 570                                 $config = 'm';
 571                                 $conf{$pkg->{src}} = 1;
 572                         };
 573                 } else {
 574                         $config = "\$(CONFIG_PACKAGE_$name)"
 575                 }
 576                 if ($config) {
 577                         $pkg->{buildonly} and $config = "";
 578                         print "package-$config += $pkg->{subdir}$pkg->{src}\n";
 579                         $pkg->{prereq} and print "prereq-$config += $pkg->{subdir}$pkg->{src}\n";
 580                 }
 581
 582                 next if $done{$pkg->{src}};
 583                 $done{$pkg->{src}} = 1;
 584
 585                 foreach my $spkg (@{$srcpackage{$pkg->{src}}}) {
 586                         foreach my $dep (@{$spkg->{depends}}, @{$spkg->{builddepends}}) {
 587                                 $dep =~ /@/ or do {
 588                                         $dep =~ s/\+//g;
 589                                         push @srcdeps, $dep;
 590                                 };
 591                         }
 592                 }
 593
 594                 my $hasdeps = 0;
 595                 my %deplines;
 596                 foreach my $deps (@srcdeps) {
 597                         my $idx;
 598                         my $condition;
 599
 600                         if ($deps =~ /^(.+):(.+)/) {
 601                                 $condition = $1;
 602                                 $deps = $2;
 603                         }
 604
 605                         my $pkg_dep = $package{$deps};
 606                         my @deps;
 607
 608                         if ($pkg_dep->{vdepends}) {
 609                                 @deps = @{$pkg_dep->{vdepends}};
 610                         } else {
 611                                 @deps = ($deps);
 612                         }
 613
 614                         foreach my $dep (@deps) {
 615                                 $pkg_dep = $package{$deps};
 616                                 if (defined $pkg_dep->{src}) {
 617                                         ($pkg->{src} ne $pkg_dep->{src}) and $idx = $pkg_dep->{subdir}.$pkg_dep->{src};
 618                                 } elsif (defined($srcpackage{$dep})) {
 619                                         $idx = $subdir{$dep}.$dep;
 620                                 }
 621                                 undef $idx if $idx =~ /^(kernel)|(base-files)$/;
 622                                 if ($idx) {
 623                                         my $depline;
 624                                         next if $pkg->{src} eq $pkg_dep->{src};
 625                                         next if $dep{$pkg->{src}."->".$idx};
 626                                         next if $dep{$pkg->{src}."->($dep)".$idx} and $pkg_dep->{vdepends};
 627                                         my $depstr;
 628
 629                                         if ($pkg_dep->{vdepends}) {
 630                                                 $depstr = "\$(if \$(CONFIG_PACKAGE_$dep),\$(curdir)/$idx/compile)";
 631                                                 $dep{$pkg->{src}."->($dep)".$idx} = 1;
 632                                         } else {
 633                                                 $depstr = "\$(curdir)/$idx/compile";
 634                                                 $dep{$pkg->{src}."->".$idx} = 1;
 635                                         }
 636                                         if ($condition) {
 637                                                 if ($condition =~ /^!(.+)/) {
 638                                                         $depline = "\$(if \$(CONFIG_$1),,$depstr)";
 639                                                 } else {
 640                                                         $depline = "\$(if \$(CONFIG_$condition),$depstr)";
 641                                                 }
 642                                         } else {
 643                                                 $depline = $depstr;
 644                                         }
 645                                         if ($depline) {
 646                                                 $deplines{$idx.$dep} = $depline;
 647                                         }
 648                                 }
 649                         }
 650                 }
 651                 my $depline = join(" ", values %deplines);
 652                 if ($depline) {
 653                         $line .= "\$(curdir)/".$pkg->{subdir}."$pkg->{src}/compile += $depline\n";
 654                 }
 655         }
 656
 657         if ($line ne "") {
 658                 print "\n$line";
 659         }
 660         foreach my $preconfig (keys %preconfig) {
 661                 my $cmds;
 662                 foreach my $cfg (keys %{$preconfig{$preconfig}}) {
 663                         my $conf = $preconfig{$preconfig}->{$cfg}->{id};
 664                         $conf =~ tr/\.-/__/;
 665                         $cmds .= "\techo \"uci set '$preconfig{$preconfig}->{$cfg}->{id}=\$(subst \",,\$(CONFIG_UCI_PRECONFIG_$conf))'\"; \\\n";
 666                 }
 667                 next unless $cmds;
 668                 print <<EOF
 669
 670 \$(TARGET_DIR)/etc/uci-defaults/$preconfig: FORCE
 671         ( \\
 672 $cmds \\
 673         ) > \$@
 674
 675 ifneq (\$(UCI_PRECONFIG)\$(CONFIG_UCI_PRECONFIG),)
 676   package/preconfig: \$(TARGET_DIR)/etc/uci-defaults/$preconfig
 677 endif
 678 EOF
 679         }
 680 }
 681
 682 sub gen_package_source() {
 683         parse_package_metadata($ARGV[0]) or exit 1;
 684         foreach my $name (sort {uc($a) cmp uc($b)} keys %package) {
 685                 my $pkg = $package{$name};
 686                 if ($pkg->{name} && $pkg->{source}) {
 687                         print "$pkg->{name}: ";
 688                         print "$pkg->{source}\n";
 689                 }
 690         }
 691 }
 692
 693 sub parse_command() {
 694         my $cmd = shift @ARGV;
 695         for ($cmd) {
 696                 /^target_config$/ and return gen_target_config();
 697                 /^package_mk$/ and return gen_package_mk();
 698                 /^package_config$/ and return gen_package_config();
 699                 /^kconfig/ and return gen_kconfig_overrides();
 700                 /^package_source$/ and return gen_package_source();
 701         }
 702         print <<EOF
 703 Available Commands:
 704         $0 target_config [file]         Target metadata in Kconfig format
 705         $0 package_mk [file]            Package metadata in makefile format
 706         $0 package_config [file]        Package metadata in Kconfig format
 707         $0 kconfig [file] [config]      Kernel config overrides
 708         $0 package_source [file]        Package source file information
 709
 710 EOF
 711 }
 712
 713 parse_command();