# Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
# All rights reserved.
# This component and the accompanying materials are made available
# under the terms of "Eclipse Public License v1.0"
# which accompanies this distribution, and is available
# at the URL "http://www.eclipse.org/legal/epl-v10.html".
#
# Initial Contributors:
# Nokia Corporation - initial contribution.
#
# Contributors:
#
# Description:
#
#!/usr/bin/perl
use strict;
use FindBin; # for FindBin::Bin
use lib $FindBin::Bin;
use lib "$FindBin::Bin/lib";
use Cwd;
use Cwd 'abs_path';
use Getopt::Long;
use File::Basename;
use File::Spec;
use XML::DOM;
my $output;
my $path;
my @config;
my @includes;
my %defineParams;
my %defines;
my $defaultns = 'http://www.symbian.org/system-definition'; # needed if no DTD
my @excludeMetaList;
my @cannotExclude= ('link-mapping', 'config');
my %ID; # list of all IDs
my @newarg;
foreach my $a (@ARGV)
{ #extract all -I parameters from the parameter list
if($a=~s/^-I//)
{
push(@includes,$a);
}
else
{
push(@newarg,$a);
}
}
@ARGV=@newarg;
# need to add options for controlling which metas are filtered out and which are included inline
GetOptions
(
'path=s' => \$path,
'output=s' => \$output,
'config=s' => \@config,
'exclude-meta=s' => \@excludeMetaList
);
# -path specifies the full system-model path to the file which is being processed.
# This must be an absolute path if you're processing a root sysdef.
# If processing a pkgdef file, you can use "./package_definition.xml" to leave all links relative. Though I can't really see the use case for this.
# -output specifies the file to save the output to. If not specified this will write to stdout
# -config specifies the name of an .hrh file in which the configuration data is acquired from. If not set, no confguration will be done.
# -I[path] specifies the include paths to use when resolving #includes in the .hrh file. Same syntax as cpp command uses. Any number of these can be provided.
# if config is not set, no confguration will be done.
# If it is set, all configuration metadata will be processed and stripped from the output, even if the confguration data is empty
if($path eq '') {$path = '/os/deviceplatformrelease/foundation_system/system_model/system_definition.xml'}
($#ARGV == -1 ) && &help();
my $sysdef = &abspath(shift); # resolve the location of the root sysdef
my %excludeMeta;
foreach (@excludeMetaList) {$excludeMeta{$_}=1} # make list a hash table
foreach (@cannotExclude)
{
$excludeMeta{$_} && print STDERR "Error: Cannot exclude meta rel=\"$_\"\n";
$excludeMeta{$_}=0
} # cannot exclude any of these rel types
# rootmap is a mapping from the filesystem to the paths in the doc
my %rootmap = &rootMap($path,$sysdef);
my %nsmap;
my %urimap;
foreach my $conf (@config)
{ # run cpp to get all #defines
&getDefines($conf);
}
my $parser = new XML::DOM::Parser;
my $sysdefdoc = $parser->parsefile ($sysdef);
my $maxschema = $sysdefdoc->getDocumentElement()->getAttribute('schema'); # don't check value, just store it.
# find all the namespaces used in all trhe fragments and use that
# to set the namespaces ni the root element of the created doc
# should be able to optimise by only parsing each doc once and
# maybe skipping the contends of <meta>
my @nslist = &namespaces($sysdef,$sysdefdoc->getDocumentElement());
while(@nslist)
{
my $uri = shift(@nslist);
my $prefix =shift(@nslist);
if($prefix eq 'id namespace'){$prefix=''}
if(defined $urimap{$uri}) {next} # already done this uri
$urimap{$uri} = $prefix;
if($nsmap{$prefix})
{ # need a new prefix for this, guess from the URI (for readability)
if($uri=~/http:\/\/(www\.)?([^.\/]+)\./) {$prefix = $2}
my $i=0;
while($nsmap{$prefix})
{ # still no prefix, just make up
$prefix="ns$i";
$i++;
# next line not really necessary, but it's a good safety to stop infinite loops
$i eq 1000 && die "cannot create namespace prefix for $uri";
}
}
$nsmap{$prefix}=$uri;
}
my $docroot = $sysdefdoc->getDocumentElement;
my $ns = $docroot->getAttribute('id-namespace');
if(!$ns && $nsmap{''})
{
$docroot->setAttribute('id-namespace',$nsmap{''});
}
$docroot->setAttribute('schema',$maxschema); # output has the largest syntax version of all includes
while(my($pre,$uri) = each(%nsmap))
{
$pre ne '' || next ;
$docroot->setAttribute("xmlns:$pre",$uri);
}
&walk($sysdef,$docroot); # process the XML
# print to file or stdout
if($output eq '')
{
print $sysdefdoc->toString;
}
else
{
$sysdefdoc->printToFile($output);
}
sub abspath
{ # normalize the path into an absolute one
my ($name,$path) = fileparse($_[0]);
$path=~tr,\\,/,;
if( -e $path)
{
return abs_path($path)."/$name";
}
my @dir = split('/',$_[0]);
my @new;
foreach my $d (@dir)
{
if($d eq '.') {next}
if($d eq '..')
{
pop(@new);
next;
}
push(@new,$d)
}
return join('/',@new);
}
sub rootMap {
my @pathdirs = split(/\//,$_[0]);
my @rootdirs = split(/\//,$_[1]);
while(lc($rootdirs[$#rootdirs]) eq lc($pathdirs[$#pathdirs]) )
{
pop(@rootdirs);
pop(@pathdirs);
}
return (join('/',@rootdirs) => join('/',@pathdirs) );
}
sub rootMapMeta {
# find all the explict path mapping from the link-mapping metadata
my $node = shift;
foreach my $child (@{$node->getChildNodes})
{
if ($child->getNodeType==1 && $child->getTagName eq 'map-prefix')
{
my $from = $child->getAttribute('link');
my $to = $child->getAttribute('to'); # optional, but blank if not set
$rootmap{$from} = $to;
}
}
# once this is processed we have no more need for it. Remove from output
$node->getParentNode->removeChild($node);
}
sub walk
{ # walk through the doc, resolving all links
my $file = shift;
my $node = shift;
my $type = $node->getNodeType;
if($type!=1) {return}
my $tag = $node->getTagName;
if($tag=~/^(layer|package|collection|component)$/ )
{
if($file eq $sysdef)
{
&fixIDs($node); # normalise all IDs in the root doc. Child docs are handled elsewhere.
}
my $link= $node->getAttribute('href');
if($link)
{
my $file = &resolvePath($file,$link);
if(-e $file)
{
&combineLink($node,$file);
}
else
{
print STDERR "Note: $file not found\n";
$node->removeAttribute('href');
}
return;
}
else
{ # only check for duplicate IDs on the implementation
my $id= $node->getAttribute('id');
my $p = $node->getParentNode();
my $ptext = $p->getTagName()." \"".$p->getAttribute('id')."\"";
if(defined $ID{$id})
{
print STDERR "Error: duplicate ID: $tag \"$id\" in $ptext matches $ID{$id}\n";
}
else
{
my $p = $node->getParentNode();
$ID{$id}="$tag in $ptext";
}
}
}
elsif($tag=~/^(SystemDefinition|systemModel)$/ )
{
}
elsif($tag eq 'unit')
{
foreach my $atr ('bldFile','mrp','base','proFile')
{
my $link= $node->getAttribute($atr);
if($link && !($link=~/^\//))
{
$link= &abspath(File::Basename::dirname($file)."/$link");
foreach my $a (keys %rootmap) {
$link=~s,^$a,$rootmap{$a},ie;
}
# remove leading ./ which is used to indicate that paths should remain relative
$link=~s,^\./([^/]),$1,;
$node->setAttribute($atr,$link);
}
}
}
elsif($tag eq 'meta')
{
my $rel= $node->getAttribute('rel') || 'Generic';
if($excludeMeta{$rel})
{
$node->getParentNode->removeChild($node);
return;
}
my $link= $node->getAttribute('href');
$link=~s,^file://(/([a-z]:/))?,$2,; # convert file URI to absolute path
if ($link ne '' )
{
if($link=~/^[\/]+:/)
{
print STDERR "Note: Remote URL $link not embedded\n";
next; # do not alter children
}
if(! ($link=~/^\//))
{
$link= &abspath(File::Basename::dirname($file)."/$link");
}
if(! -e $link)
{
print STDERR "Warning: Local metadata file not found: $link\n";
next; # do not alter children
}
# if we're here we can just embed the file
# no processing logic is done! It's just embedded blindly
my $item;
eval {
my $metadoc = $parser->parsefile ($link);
$item = $metadoc->getDocumentElement;
};
if(!$item)
{
print STDERR "Error: Could not process metadata file: $link\n";
next; # do not alter children
}
$node->removeAttribute('href');
&blindCopyInto($node,$item);
}
if($node->getAttribute('rel') eq 'link-mapping')
{# need to process this now
&rootMapMeta($node);
}
return;
}
else {return}
my $checkversion=0;
foreach my $item (@{$node->getChildNodes})
{
#print $item->getNodeType,"\n";
&walk($file,$item);
$checkversion = $checkversion || ($tag eq 'component' && $item->getNodeType==1 && $item->getAttribute('version') ne '');
}
if($checkversion && scalar(@config))
{ # need to check the conf metadata on the units in this component
&doCmpConfig($node);
}
foreach my $item (@{$node->getChildNodes})
{
if ($item->getNodeType==1 && $item->getTagName eq 'meta')
{
&processMeta($item);
}
}
}
sub combineLink
{
# combine data from linked sysdef fragment w/ equivalent element in parent document
my $node = shift;
my $file = shift;
my $getfromfile = &localfile($file);
$getfromfile eq '' && return; # already raised warning, no need to repeat
my $doc = $parser->parsefile ($getfromfile);
my $item =&firstElement($doc->getDocumentElement);
$item || die "badly formatted $file";
&fixIDs($item);
my %up = &atts($node);
my %down = &atts($item);
$up{'id'} eq $down{'id'} || die "$up{id} differs from $down{id}";
$node->removeAttribute('href');
foreach my $v (keys %up) {delete $down{$v}}
foreach my $v (keys %down)
{
$node->setAttribute($v,$down{$v})
}
foreach my $child (@{$item->getChildNodes})
{
©Into($node,$child);
}
&walk($file,$node);
}
sub blindCopyInto
{
# make a deep copy the node (2nd arg) into the element (1st arg)
my $parent=shift;
my $item = shift;
my $doc = $parent->getOwnerDocument;
my $type = $item->getNodeType;
my $new;
if($type==1)
{
$new = $doc->createElement($item->getTagName);
my %down = &atts($item);
while(my($a,$b) = each(%down))
{
$new->setAttribute($a,$b);
}
foreach my $child (@{$item->getChildNodes})
{
&blindCopyInto($new,$child);
}
}
elsif($type==3)
{
$new = $doc->createTextNode ($item->getData);
}
elsif($type==8)
{
$new = $doc->createComment ($item->getData);
}
if($new)
{
$parent->appendChild($new);
}
}
sub copyInto
{
# make a deep copy the node (2nd arg) into the element (1st arg)
my $parent=shift;
my $item = shift;
my $doc = $parent->getOwnerDocument;
my $type = $item->getNodeType;
my $new;
if($type==1)
{
&fixIDs($item);
$new = $doc->createElement($item->getTagName);
my %down = &atts($item);
foreach my $ordered ('id','name','bldFile','mrp','level','levels','introduced','deprecated','filter')
{
if($down{$ordered})
{
$new->setAttribute($ordered,$down{$ordered});
delete $down{$ordered}
}
}
while(my($a,$b) = each(%down))
{
$new->setAttribute($a,$b);
}
foreach my $child (@{$item->getChildNodes})
{
©Into($new,$child);
}
}
elsif($type==3)
{
$new = $doc->createTextNode ($item->getData);
}
elsif($type==8)
{
$new = $doc->createComment ($item->getData);
}
if($new)
{
$parent->appendChild($new);
}
}
sub getNs
{
# find the namespace URI that applies to the specified prefix.
my $node = shift;
my $pre = shift;
my $uri = $node->getAttribute("xmlns:$pre");
if($uri) {return $uri}
my $parent = $node->getParentNode;
if($parent && $parent->getNodeType==1)
{
return getNs($parent,$pre);
}
}
sub fixIDs
{
# translate the ID to use the root doc's namespaces
my $node = shift;
foreach my $id ('id','before')
{
&fixID($node,$id);
}
}
sub fixID
{
# translate the ID to use the root doc's namespaces
my $node = shift;
my $attr = shift || 'id';
my $id = $node->getAttribute($attr);
if($id eq '') {return}
my $ns;
if($id=~s/^(.*)://)
{ # it's got a ns, find out what it is
my $pre = $1;
$ns=&getNs($node,$pre);
}
else
{
$ns = $node->getOwnerDocument->getDocumentElement->getAttribute("id-namespace") ||
$defaultns;
}
$ns = $urimap{$ns};
$id = ($ns eq '') ? $id : "$ns:$id";
return $node->setAttribute($attr,$id);
}
sub firstElement {
# return the first element in this node
my $node = shift;
foreach my $item (@{$node->getChildNodes}) {
if($item->getNodeType==1) {return $item}
}
}
sub atts {
# return a hash of all attribtues defined for this element
my $node = shift;
my %at = $node->getAttributes;
my %list;
foreach my $a (keys %{$node->getAttributes})
{
if($a ne '')
{
$list{$a} = $node->getAttribute ($a);
}
}
return %list;
}
sub ns
{
# return a hash of ns prefix and uri -- the xmlns: part is stripped off
my $node = shift;
my %list;
foreach my $a (keys %{$node->getAttributes})
{
my $pre = $a;
if($pre=~s/^xmlns://)
{
$list{$pre} = $node->getAttribute ($a);
}
}
return %list;
}
sub resolvePath
{
# return full path to 2nd arg relative to first (path or absolute URI)
my $base = shift;
my $path = shift;
if($path=~m,^/,) {return $path } # path is absolute, but has no drive. Let OS deal with it.
if($path=~s,^file:///([a-zA-Z]:/),$1,) {return $path } # file URI with drive letter
if($path=~m,^file://,) {return $path } # file URI with no drive letter (unit-style). Just pass on as is with leading / and let OS deal with it
if($path=~m,^[a-z0-9][a-z0-9]+:,i) {return $path } # absolute URI -- no idea how to handle, so just return
return &abspath(File::Basename::dirname($base)."/$path");
}
sub resolveURI
{
# return full path to 2nd arg relative to first (path or absolute URI)
my $base = shift;
my $path = shift;
if($path=~m,[a-z0-9][a-z0-9]+:,i) {return $path } # absolute URI -- just return
if($path=~m,^/,) {return $path } # path is absolute, but has no drive. Let OS deal with it.
return &abspath(File::Basename::dirname($base)."/$path");
}
sub localfile
{
my $file = shift;
if($file=~s,file:///([a-zA-Z]:/),$1,) {return $file } # file URI with drive letter
if($file=~m,file://,) {return $file } # file URI with no drive letter (unit-style). Just pass on as is with leading / and let OS deal with it
if($file=~m,^([a-z0-9][a-z0-9]+):,i)
{
print STDERR "ERROR: $1 scheme not supported\n";
return; # return empty string if not supported.
}
return $file
}
sub namespaces
{
# return a list of namespace URI / prefix pairs, in the order they're defined
# these need to be used to define namespaces in the root element
my $file = shift;
my $node = shift;
my $type = $node->getNodeType;
if($type!=1) {return}
my $tag = $node->getTagName;
my @res;
my %nslist = &ns($node);
while(my($pre,$uri)=each(%nslist))
{ # push all namespaces defined here onto the list
push(@res,$uri,$pre);
}
if($tag=~/^(layer|package|collection|component)$/ )
{ # these have the potential of linking, so check for that
my $link= $node->getAttribute('href');
if($link)
{
$link=&resolvePath($file,$link);
if(-e $link)
{
my $doc;
eval {
$doc = $parser->parsefile ($link);
};
if($doc)
{
&checkSyntaxVersion($doc->getDocumentElement->getAttribute('schema')); # ensure we track we highest syntax number
my @docns = &namespaces($link,$doc->getDocumentElement);
undef $doc;
return (@res,@docns);
#ignore any children nodes if this is a link
}
print STDERR "Error: Malformed XML. Could not process $link\n";
}
# print STDERR "Note: $link not found\n"; -- no need to warm now. Do so later when trying to join
}
}
elsif($tag eq 'SystemDefinition' )
{
my $default = $node->getAttribute('id-namespace');
if($default)
{# mangle with a space so it's clear it's not a qname
push(@res,$default,'id namespace');
}
}
foreach my $item (@{$node->getChildNodes})
{
push(@res,&namespaces($file,$item));
}
return @res;
}
sub processMeta
{ # acts upon any known <meta> and strips it from the output if it's used
my $metanode = shift;
my $rel = $metanode->getAttribute('rel') || 'Generic';
if($rel eq 'config' && scalar(@config))
{ # only process if there is something to configure
&doconfig($metanode);
}
else
{
# do nothing. Not supported yet
}
}
sub doCmpConfig
{ # configure in or out the units in a component
my $cmp = shift; # the component node
my @unversioned; # list of all units with no version attribute (if more than one, they should all have filters defined)
my %versioned; # hash table of all units with a specified version, it's a fatal error to hav the same verison twice in one component
foreach my $item (@{$cmp->getChildNodes})
{ # populate %versioned and @unversioned to save processsing later
if($item->getNodeType==1 && $item->getTagName eq 'unit')
{
my $ver = $item->getAttribute('version');
if($ver eq '') {push(@unversioned,$item)}
else
{
defined $versioned{$ver} && die "Cannot have more than one unit with version $ver in the same component ".$cmp->getAttribute('id');
$versioned{$ver}=$item;
}
}
}
my @picks = &getMetaConfigPick($cmp); # the list, in order, of all <pick> elements that affect this component
foreach my $pick (@picks)
{
my $ver = $pick->getAttribute('version');
if(!$versioned{$ver})
{
print STDERR "ERROR: Reference to invalid unit version $ver in component ",$cmp->getAttribute('id'),". Ignoring.\n";
return;
}
if(&definedMatches($pick))
{ # remove all other units;
delete $versioned{$ver}; # to avoid removing in loop
foreach my $unit (@unversioned, values(%versioned))
{
$cmp->removeChild($unit);
print STDERR "Note: unit ",$unit->getAttribute('version')," in component " ,$cmp->getAttribute('id')," configured out\n";
}
last; # done. No more processing after first match
}
else
{ # remove this unit and continue
$cmp->removeChild($versioned{$ver});
print STDERR "Note: unit $ver in component " ,$cmp->getAttribute('id')," configured out\n";
delete $versioned{$ver}; # gone, don't process anymore;
}
}
if (scalar(@unversioned, values(%versioned)) > 1)
{
print STDERR "Warning: component ",$cmp->getAttribute('id')," has more than one unit after configuration\n";
}
}
sub getMetaConfigPick
{ # return an array of all <pick> elements that affect the specified element
my $node = shift;
my @pick;
while($node->getParentNode->getNodeType==1)
{
foreach my $item (@{$node->getChildNodes})
{
my @picks;
if($item->getNodeType==1 && $item->getAttribute('rel') eq 'config')
{ # it's conf metadata
foreach my $p (@{$item->getChildNodes})
{
if($p->getNodeType==1 && $p->getTagName eq 'pick') {push(@picks,$p)}
}
}
@pick=(@picks,@pick); # prepend this to the start;
}
$node=$node->getParentNode;
}
return @pick;
}
sub definedMatches
{ # process all <defined> and <not-defined> the specified element and return true or false if the combination matches
my $node = shift;
my $match = 1;
foreach my $def (@{$node->getChildNodes})
{
if($def->getNodeType == 1)
{
my $tag = $def->getTagName;
if($tag eq 'defined' or $tag eq 'not-defined')
{
my $var = $def->getAttribute('condition') || die "Must have condition set on all $tag elements";
$defineParams{$var} && die "Cannot use a macro with parameters as a feature flag: $var(".$defineParams{$var}->[0].")";
$match = $match && (($tag eq 'defined') ? defined($defines{$var}) : ! defined($defines{$var}));
}
}
}
return $match;
}
sub doconfig
{ # confgure in or out a system model item that owns the specified <meta>, remove the <meta> when done.
my $meta = shift;
my $keep = definedMatches($meta);
my $parent = $meta->getParentNode;
if(!$keep)
{
print STDERR "Note: ",$parent->getTagName," " ,$parent->getAttribute('id')," configured out\n";
$parent->getParentNode->removeChild($parent);
return; # it's removed, so there's nothing else we can possibly do
}
$parent->removeChild($meta);
}
sub getDefines
{ # populate the list of #defines from a specified .hrh file.
my $file = shift;
my $inc;
foreach my $i (@includes)
{
$inc.=" -I$i";
}
open(CPP,"cpp -dD$inc \"$file\"|");
while(<CPP>)
{
if(!/\S/){next} # skip blank lines
if(/^# [0-9]+ /) {next} # don't care about these
s/\s+$//;
if(s/^#define\s+(\S+)\((.*?)\)\s+//)
{ #parametered define
push(@{$defineParams{$1}},@2,$_);
}
elsif(s/^#define\s+(\S+)//)
{ # normal define
my $def = $1;
s/^\s+//;
$defines{$1}=$_;
}
else {die "cannot process $_";}
}
close CPP;
$? && die "Call to cpp produced an error";
}
sub checkSyntaxVersion
{ # check if supplied version number is greater than $maxschema
my $schema = shift;
my @max=split(/\./,$maxschema);
my @cur=split(/\./,$schema);
while(@max)
{
($max[0] > $cur[0]) && return; # max is bigger, do nothing
if($cur[0] > $max[0])
{
$maxschema=$schema;
return;
}
shift @max;
shift @cur;
}
# they are equal - do nothing
}
sub help
{
my $name= $0; $name=~s,^.*[\\/],,;
my $text;
format STDERR =
^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
$text,
^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<~~
$text
.
print STDERR "usage: $name [options...] sysdef\n valid options are:\n\n";
foreach (
"-path\tspecifies the full system-model path to the file which is being processed. By default this is \"/os/deviceplatformrelease/foundation_system/system_model/system_definition.xml\"",
" This must be an absolute path if you're processing a root sysdef.",
" If processing a pkgdef file, you can use \"./package_definition.xml\" to leave all links relative.",
"-output\tspecifies the file to save the output to. If not specified this will write to stdout",
"-config\tspecifies the name of an .hrh file in which the configuration data is acquired from. If not set, no confguration will be done.",
" If it is set, all configuration metadata will be processed and stripped from the output, even if the confguration data is empty",
"-I[path]\tspecifies the include paths to use when resolving #includes in the .hrh file. This uses the same syntax as cpp command uses: a captial \"I\" followed by the path with no space in between. Any number of these can be provided.",
"-exclude-meta [rel]\tspecifies the 'rel' value of <meta> elements to exclude from the output. Any number of these can be provided. The following meta rel values affect the processing of the system definition and cannot be excluded: ".join(', ',@cannotExclude)
) {
$text = $_;
write STDERR;
print STDERR "\n";
}
exit(1);
}