OpenWrt – Rev 1

Subversion Repositories:
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package metadata;
use base 'Exporter';
use strict;
use warnings;
our @EXPORT = qw(%package %vpackage %srcpackage %category %overrides clear_packages parse_package_metadata parse_target_metadata get_multiline @ignore %usernames %groupnames);

our %package;
our %vpackage;
our %srcpackage;
our %category;
our %overrides;
our @ignore;

our %usernames;
our %groupnames;
our %userids;
our %groupids;

sub get_multiline {
        my $fh = shift;
        my $prefix = shift;
        my $str;
        while (<$fh>) {
                last if /^@@/;
                $str .= (($_ and $prefix) ? $prefix . $_ : $_);
        }

        return $str ? $str : "";
}

sub confstr($) {
        my $conf = shift;
        $conf =~ tr#/\.\-/#___#;
        return $conf;
}

sub parse_package_metadata_usergroup($$$$$) {
        my $makefile = shift;
        my $typename = shift;
        my $names = shift;
        my $ids = shift;
        my $spec = shift;
        my $name;
        my $id;

        # the regex for name is taken from is_valid_name() of package shadow
        if ($spec =~ /^([a-z_][a-z0-9_-]*\$?)$/) {
                $name = $spec;
                $id = -1;
        } elsif ($spec =~ /^([a-z_][a-z0-9_-]*\$?)=(\d+)$/) {
                $name = $1;
                $id = $2;
        } else {
                warn "$makefile: invalid $typename spec $spec\n";
                return 0;
        }

        if ($id =~ /^[1-9]\d*$/) {
                if ($id >= 65536) {
                        warn "$makefile: $typename $name id $id >= 65536";
                        return 0;
                }
                if (not exists $ids->{$id}) {
                        $ids->{$id} = {
                                name => $name,
                                makefile => $makefile,
                        };
                } elsif ($ids->{$id}{name} ne $name) {
                        warn "$makefile: $typename $name id $id is already taken by $ids->{$id}{makefile}\n";
                        return 0;
                }
        } elsif ($id != -1) {
                warn "$makefile: $typename $name has invalid id $id\n";
                return 0;
        }

        if (not exists $names->{$name}) {
                $names->{$name} = {
                        id => $id,
                        makefile => $makefile,
                };
        } elsif ($names->{$name}{id} != $id) {
                warn "$makefile: id of $typename $name collides with that defined defined in $names->{$name}{makefile}\n";
                return 0;
        }
        return 1;
}

sub parse_target_metadata($) {
        my $file = shift;
        my ($target, @target, $profile);
        my %target;
        my $makefile;

        open FILE, "<$file" or do {
                warn "Can't open file '$file': $!\n";
                return;
        };
        while (<FILE>) {
                chomp;
                /^Source-Makefile: \s*((.+\/)([^\/]+)\/Makefile)\s*$/ and $makefile = $1;
                /^Target:\s*(.+)\s*$/ and do {
                        my $name = $1;
                        $target = {
                                id => $name,
                                board => $name,
                                makefile => $makefile,
                                boardconf => confstr($name),
                                conf => confstr($name),
                                profiles => [],
                                features => [],
                                depends => [],
                                subtargets => []
                        };
                        push @target, $target;
                        $target{$name} = $target;
                        if ($name =~ /([^\/]+)\/([^\/]+)/) {
                                push @{$target{$1}->{subtargets}}, $2;
                                $target->{board} = $1;
                                $target->{boardconf} = confstr($1);
                                $target->{subtarget} = 1;
                                $target->{parent} = $target{$1};
                        }
                };
                /^Target-Name:\s*(.+)\s*$/ and $target->{name} = $1;
                /^Target-Arch:\s*(.+)\s*$/ and $target->{arch} = $1;
                /^Target-Arch-Packages:\s*(.+)\s*$/ and $target->{arch_packages} = $1;
                /^Target-Features:\s*(.+)\s*$/ and $target->{features} = [ split(/\s+/, $1) ];
                /^Target-Depends:\s*(.+)\s*$/ and $target->{depends} = [ split(/\s+/, $1) ];
                /^Target-Description:/ and $target->{desc} = get_multiline(*FILE);
                /^Target-Optimization:\s*(.+)\s*$/ and $target->{cflags} = $1;
                /^CPU-Type:\s*(.+)\s*$/ and $target->{cputype} = $1;
                /^Linux-Version:\s*(.+)\s*$/ and $target->{version} = $1;
                /^Linux-Release:\s*(.+)\s*$/ and $target->{release} = $1;
                /^Linux-Kernel-Arch:\s*(.+)\s*$/ and $target->{karch} = $1;
                /^Default-Subtarget:\s*(.+)\s*$/ and $target->{def_subtarget} = $1;
                /^Default-Packages:\s*(.+)\s*$/ and $target->{packages} = [ split(/\s+/, $1) ];
                /^Target-Profile:\s*(.+)\s*$/ and do {
                        $profile = {
                                id => $1,
                                name => $1,
                                priority => 999,
                                packages => []
                        };
                        $1 =~ /^DEVICE_/ and $target->{has_devices} = 1;
                        push @{$target->{profiles}}, $profile;
                };
                /^Target-Profile-Name:\s*(.+)\s*$/ and $profile->{name} = $1;
                /^Target-Profile-Priority:\s*(\d+)\s*$/ and do {
                        $profile->{priority} = $1;
                        $target->{sort} = 1;
                };
                /^Target-Profile-Packages:\s*(.*)\s*$/ and $profile->{packages} = [ split(/\s+/, $1) ];
                /^Target-Profile-Description:\s*(.*)\s*/ and $profile->{desc} = get_multiline(*FILE);
        }
        close FILE;
        foreach my $target (@target) {
                if (@{$target->{subtargets}} > 0) {
                        $target->{profiles} = [];
                        next;
                }
                @{$target->{profiles}} > 0 or $target->{profiles} = [
                        {
                                id => 'Default',
                                name => 'Default',
                                packages => []
                        }
                ];

                $target->{sort} and @{$target->{profiles}} = sort {
                        $a->{priority} <=> $b->{priority} or
                        $a->{name} cmp $b->{name};
                } @{$target->{profiles}};
        }
        return @target;
}

sub clear_packages() {
        %package = ();
        %vpackage = ();
        %srcpackage = ();
        %category = ();
        %overrides = ();
        %usernames = ();
        %groupnames = ();
}

sub parse_package_metadata($) {
        my $file = shift;
        my $pkg;
        my $src;
        my $override;
        my %ignore = map { $_ => 1 } @ignore;

        open FILE, "<$file" or do {
                warn "Cannot open '$file': $!\n";
                return undef;
        };
        while (<FILE>) {
                chomp;
                /^Source-Makefile: \s*((?:package\/)?((?:.+\/)?([^\/]+))\/Makefile)\s*$/ and do {
                        $src = {
                                makefile => $1,
                                path => $2,
                                name => $3,
                                ignore => $ignore{$3},
                                packages => [],
                                buildtypes => [],
                                builddepends => [],
                        };
                        $srcpackage{$3} = $src;
                        $override = "";
                        undef $pkg;
                };
                /^Override: \s*(.+?)\s*$/ and do {
                        $override = $1;
                        $overrides{$src->{name}} = 1;
                };
                next unless $src;
                /^Package:\s*(.+?)\s*$/ and do {
                        $pkg = {};
                        $pkg->{src} = $src;
                        $pkg->{name} = $1;
                        $pkg->{title} = "";
                        $pkg->{depends} = [];
                        $pkg->{mdepends} = [];
                        $pkg->{provides} = [$1];
                        $pkg->{tristate} = 1;
                        $pkg->{override} = $override;
                        $package{$1} = $pkg;
                        push @{$src->{packages}}, $pkg;

                        $vpackage{$1} or $vpackage{$1} = [];
                        unshift @{$vpackage{$1}}, $pkg;
                };
                /^Build-Depends: \s*(.+)\s*$/ and $src->{builddepends} = [ split /\s+/, $1 ];
                /^Build-Depends\/(\w+): \s*(.+)\s*$/ and $src->{"builddepends/$1"} = [ split /\s+/, $2 ];
                /^Build-Types:\s*(.+)\s*$/ and $src->{buildtypes} = [ split /\s+/, $1 ];
                next unless $pkg;
                /^Version: \s*(.+)\s*$/ and $pkg->{version} = $1;
                /^ABIVersion: \s*(.+)\s*$/ and $pkg->{abiversion} = $1;
                /^Title: \s*(.+)\s*$/ and $pkg->{title} = $1;
                /^Menu: \s*(.+)\s*$/ and $pkg->{menu} = $1;
                /^Submenu: \s*(.+)\s*$/ and $pkg->{submenu} = $1;
                /^Submenu-Depends: \s*(.+)\s*$/ and $pkg->{submenudep} = $1;
                /^Source: \s*(.+)\s*$/ and $pkg->{source} = $1;
                /^License: \s*(.+)\s*$/ and $pkg->{license} = $1;
                /^LicenseFiles: \s*(.+)\s*$/ and $pkg->{licensefiles} = $1;
                /^Default: \s*(.+)\s*$/ and $pkg->{default} = $1;
                /^Provides: \s*(.+)\s*$/ and do {
                        my @vpkg = split /\s+/, $1;
                        @{$pkg->{provides}} = ($pkg->{name}, @vpkg);
                        foreach my $vpkg (@vpkg) {
                                next if ($vpkg eq $pkg->{name});
                                $vpackage{$vpkg} or $vpackage{$vpkg} = [];
                                push @{$vpackage{$vpkg}}, $pkg;
                        }
                };
                /^Menu-Depends: \s*(.+)\s*$/ and $pkg->{mdepends} = [ split /\s+/, $1 ];
                /^Depends: \s*(.+)\s*$/ and $pkg->{depends} = [ split /\s+/, $1 ];
                /^Conflicts: \s*(.+)\s*$/ and $pkg->{conflicts} = [ split /\s+/, $1 ];
                /^Hidden: \s*(.+)\s*$/ and $pkg->{hidden} = 1;
                /^Build-Variant: \s*([\w\-]+)\s*/ and $pkg->{variant} = $1;
                /^Default-Variant: .*/ and $pkg->{variant_default} = 1;
                /^Build-Only: \s*(.+)\s*$/ and $pkg->{buildonly} = 1;
                /^Repository:\s*(.+?)\s*$/ and $pkg->{repository} = $1;
                /^Category: \s*(.+)\s*$/ and do {
                        $pkg->{category} = $1;
                        defined $category{$1} or $category{$1} = {};
                        defined $category{$1}{$src->{name}} or $category{$1}{$src->{name}} = [];
                        push @{$category{$1}{$src->{name}}}, $pkg;
                };
                /^Description: \s*(.*)\s*$/ and $pkg->{description} = "\t\t $1\n". get_multiline(*FILE, "\t\t ");
                /^Type: \s*(.+)\s*$/ and do {
                        $pkg->{type} = [ split /\s+/, $1 ];
                        undef $pkg->{tristate};
                        foreach my $type (@{$pkg->{type}}) {
                                $type =~ /ipkg/ and $pkg->{tristate} = 1;
                        }
                };
                /^Config:\s*(.*)\s*$/ and $pkg->{config} = "$1\n".get_multiline(*FILE, "\t");
                /^Prereq-Check:/ and $pkg->{prereq} = 1;
                /^Require-User:\s*(.*?)\s*$/ and do {
                        my @ugspecs = split /\s+/, $1;

                        for my $ugspec (@ugspecs) {
                                my @ugspec = split /:/, $ugspec, 2;
                                if ($ugspec[0]) {
                                        parse_package_metadata_usergroup($src->{makefile}, "user", \%usernames, \%userids, $ugspec[0]) or return 0;
                                }
                                if ($ugspec[1]) {
                                        parse_package_metadata_usergroup($src->{makefile}, "group", \%groupnames, \%groupids, $ugspec[1]) or return 0;
                                }
                        }
                };
        }
        close FILE;
        return 1;
}

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