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#!/usr/bin/perl
#
# osgideps.pl -- Analyze dependencies of OSGi bundles.
#
# Kyu Lee (initial idea)
# Alphonse Van Assche <alcapcom@fedoraproject.org> (current maintainer)
#
# $Id: osgideps.pl,v 1.0 2009/06/08 12:12:12 mej Exp $
use Getopt::Long;
use File::Temp qw/ tempdir /;
use threads;
use Thread::Queue;
$MANIFEST_NAME = "META-INF/MANIFEST.MF";
# parse options
my ( $show_provides, $show_requires, $show_system_bundles, $debug );
my $result = GetOptions(
"provides" => \$show_provides,
"requires" => \$show_requires,
"system" => \$show_system_bundles,
"debug" => \$debug
);
exit(1) if ( not $result );
# run selected function
@allfiles = <STDIN>;
if ($show_provides) {
getProvides(@allfiles);
}
if ($show_requires) {
getRequires(@allfiles);
}
if ($show_system_bundles) {
getSystemBundles(@allfiles);
}
exit(0);
# this function print provides of OSGi aware files
sub getProvides {
my $queue = Thread::Queue->new;
foreach $file (@_) {
$queue->enqueue($file);
}
my @workers;
push @workers, threads->create('getProvidesWorker');
push @workers, threads->create('getProvidesWorker');
push @workers, threads->create('getProvidesWorker');
push @workers, threads->create('getProvidesWorker');
map { $_->join } @workers;
sub getProvidesWorker {
while ( my $file = $queue->dequeue_nb ) {
chomp($file);
# we don't follow symlinks for provides
next if ( -f $file && -r _ && -l _ );
$file =~ s/[^[:print:]]//g;
if ( $file =~ m/$MANIFEST_NAME$/ || $file =~ m/\.jar$/ ) {
if ( $file =~ m/\.jar$/ ) {
if ( `zipinfo -1 $file 2> /dev/null | grep -e \^$MANIFEST_NAME` eq "$MANIFEST_NAME\n" ) {
# extract MANIFEST.MF file from jar to temporary directory
$tmpdir = tempdir( CLEANUP => 1 );
`unzip -d $tmpdir -qqo $file $MANIFEST_NAME`;
open( MANIFEST, "$tmpdir/$MANIFEST_NAME" );
}
} else {
open( MANIFEST, "$file" );
}
my $bundleName = "";
my $version = "";
# parse Bundle-SymbolicName, Bundle-Version and Export-Package attributes
while (<MANIFEST>) {
# get rid of non-print chars (some manifest files contain weird chars)
s/[^[:print]]//g;
if ( m/(^(Bundle-SymbolicName): )(.*)$/ ) {
$bundleName = "$3" . "\n";
while (<MANIFEST>) {
if ( m/^[[:upper:]][[:alpha:]]+-[[:upper:]][[:alpha:]]+: .*/ ) {
$len = length $_;
seek MANIFEST, $len * -1, 1;
last;
}
$bundleName .= "$_";
}
$bundleName =~ s/\s+//g;
$bundleName =~ s/;.*//g;
}
if ( m/(^Bundle-Version: )(.*)/ ) {
$version = $2;
}
if ( m/(^(Export-Package): )(.*)$/ ) {
my $bunlist = "$3" . "\n";
while (<MANIFEST>) {
if ( m/^[[:upper:]][[:alpha:]]+-[[:upper:]][[:alpha:]]+: .*/ ) {
$len = length $_;
seek MANIFEST, $len * -1, 1;
last;
}
$bunlist .= "$_";
}
push @bundlelist, parsePkgString($bunlist, $file);
}
}
# skip this jar if no bundle name exists
if ( !$bundleName eq "" ) {
if ( !$version eq "" ) {
$version = parseVersion($version);
push @bundlelist, { FILE => "$file", NAME => "$bundleName", VERSION => "$version" };
} else {
push @bundlelist, { FILE => "$file", NAME => "$bundleName", VERSION => "" };
}
}
`rm -rf $tmpdir`;
}
}
if ( !$debug ) { @bundlelist = prepareOSGiBundlesList(@bundlelist); }
$list = "";
for $bundle (@bundlelist) {
if ( !$debug ) {
$list .= "osgi(" . $bundle->{NAME} . ")" . $bundle->{VERSION} . "\n";
} else {
$list .= $bundle->{FILE} . " osgi(" . $bundle->{NAME} . ")" . $bundle->{VERSION} . "\n";
}
}
print $list;
}
}
# this function print requires of OSGi aware files
sub getRequires {
my $queue = Thread::Queue->new;
foreach $file (@_) {
$queue->enqueue($file);
}
my @workers;
push @workers, threads->create('getRequiresWorker');
push @workers, threads->create('getRequiresWorker');
push @workers, threads->create('getRequiresWorker');
push @workers, threads->create('getRequiresWorker');
map { $_->join } @workers;
sub getRequiresWorker {
while ( my $file = $queue->dequeue_nb ) {
next if ( -f $file && -r _ );
$file =~ s/[^[:print:]]//g;
if ( $file =~ m/$MANIFEST_NAME$/ || $file =~ m/\.jar$/ ) {
# we explicitly requires symlinked jars
# _that_reside_outside_the_package_
if (-l $file) {
$exist = 0;
$lnksrc = `readlink -qen $file`;
foreach $exfile ( @allfiles ) {
$exfile =~ s/[^[:print:]]//g;
if ( $lnksrc =~ m/$exfile$/ ) {
$exist = 1;
last;
}
}
print "$lnksrc\n" if (!$exist);
next;
}
if ( $file =~ m/\.jar$/ ) {
if ( `zipinfo -1 $file 2> /dev/null | grep -e \^$MANIFEST_NAME` eq "$MANIFEST_NAME\n" ) {
# extract MANIFEST.MF file from jar to temporary directory
$tmpdir = tempdir( CLEANUP => 1 );
`unzip -d $tmpdir -qqo $file $MANIFEST_NAME`;
open( MANIFEST, "$tmpdir/$MANIFEST_NAME" );
}
} else {
open( MANIFEST, "$file" );
}
while (<MANIFEST>) {
if ( m/(^(Require-Bundle|Import-Package): )(.*)$/ ) {
my $bunlist = "$3" . "\n";
while (<MANIFEST>) {
if (m/^[[:upper:]][[:alpha:]]+-[[:upper:]][[:alpha:]]+: .*/ ) {
$len = length $_;
seek MANIFEST, $len * -1, 1;
last;
}
$bunlist .= "$_";
}
push @bundlelist, parsePkgString($bunlist, $file);
}
# we also explicitly require symlinked jars define by
# Bundle-ClassPath attribut
if ( m/(^(Bundle-ClassPath): )(.*)$/ ) {
$bunclp = "$3" . "\n";
while (<MANIFEST>) {
if ( m/^[[:upper:]][[:alpha:]]+-[[:upper:]][[:alpha:]]+: .*/ ) {
$len = length $_;
seek MANIFEST, $len * -1, 1;
last;
}
$bunclp .= "$_";
}
$bunclp =~ s/\ //g;
$bunclp =~ s/\n//g;
$bunclp =~ s/[^[:print:]]//g;
$dir = `dirname $file`;
$dir =~ s/\n//g;
@jars = split /,/, $bunclp;
for $jarfile (@jars) {
$jarfile = "$dir\/\.\.\/$jarfile";
$jarfile = readlink $jarfile;
if ( !$jarfile eq "" ) {
print "$jarfile" . "\n";
}
}
}
}
`rm -rf $tmpdir`;
}
}
if ( !$debug ) { @bundlelist = prepareOSGiBundlesList(@bundlelist); }
$list = "";
for $bundle (@bundlelist) {
# replace '=' by '>=' because qualifiers are set on provides
# but not on requires.
$bundle->{VERSION} =~ s/\ =/\ >=/g;
if ( !$debug ) {
$list .= "osgi(" . $bundle->{NAME} . ")" . $bundle->{VERSION} . "\n";
} else {
$list .= $bundle->{FILE} . " osgi(" . $bundle->{NAME} . ")" . $bundle->{VERSION} . "\n";
}
}
print $list;
}
}
# this function print system bundles of OSGi profile files.
sub getSystemBundles {
foreach $file (@_) {
if ( ! -f $file || ! -r _ ) {
print "'$file' file not found or cannot be read!";
next;
} else {
open( PROFILE, "$file" );
while (<PROFILE>) {
if ( $file =~ m/\.profile$/ ) {
if (m/(^(org\.osgi\.framework\.system\.packages)[=|\ ]+)(.*)$/) {
$syspkgs = "$3" . "\n";
while (<PROFILE>) {
if (m/^[a-z]/) {
$len = length $_;
seek MANIFEST, $len * -1, 1;
last;
}
$syspkgs .= "$_";
}
$syspkgs =~ s/\s+//g;
$syspkgs =~ s/\\//g;
@bundles = split /,/, $syspkgs;
foreach $bundle (@bundles) {
print "osgi(" . $bundle . ")\n";
}
}
}
}
}
}
}
sub parsePkgString {
my $bunstr = $_[0];
my $file = $_[1];
my @return;
$bunstr =~ s/ //g;
$bunstr =~ s/\n//g;
$bunstr =~ s/[^[:print:]]//g;
$bunstr =~ s/("[[:alnum:]|\-|\_|\.|\(|\)|\[|\]]+)(,)([[:alnum:]|\-|\_|\.|\(|\)|\[|\]]+")/$1 $3/g;
# remove uses bundle from Export-Package attribute
$bunstr =~ s/uses:="[[:alnum:]|\-|\_|\.|\(|\)|\[|\]|,]+"//g;
# remove optional dependencies
$bunstr =~ s/,.*;resolution:=optional//g;
# remove x-friends
$bunstr =~ s/;x-friends:="[[:alnum:]|\-|\_|\.|\(|\)|\[|\]|,]+"//g;
# remove signatures
$bunstr =~ s/Name:.*SHA1-Digest:.*//g;
@reqcomp = split /,/, $bunstr;
foreach $reqelement (@reqcomp) {
@reqelementfrmnt = split /;/, $reqelement;
$name = "";
$version = "";
$name = $reqelementfrmnt[0];
$name =~ s/\"//g;
# ignoring OSGi 'system.bundle'
next if ( $name =~ m/^system\.bundle$/ );
for $i ( 1 .. $#reqelementfrmnt ) {
if ( $reqelementfrmnt[$i] =~ m/(^(bundle-|)version=")(.*)(")/ ) {
$version = $3;
last;
}
}
$version = parseVersion($version);
push @return, { FILE => "$file", NAME => "$name", VERSION => "$version" };
}
return @return;
}
sub parseVersion {
my $ver = $_[0];
if ( $ver eq "" ) { return ""; }
if ( $ver =~ m/(^[\[|\(])(.+)\ (.+)([\]|\)]$)/ ) {
if ( $1 eq "\[" ) {
$ver = " >= $2";
} else {
$ver = " > $2";
}
} else {
$ver = " = $ver";
}
# we always return a full OSGi version to be able to match 1.0
# and 1.0.0 as equal in RPM.
( $major, $minor, $micro, $qualifier ) = split( '\.', $ver );
if ( !defined($minor) || !$minor ) {
$minor = 0;
}
if ( !defined($micro) || !$micro ) {
$micro = 0;
}
if ( !defined($qualifier) || !$qualifier ) {
$qualifier = "";
} else {
$qualifier = "." . $qualifier;
}
$ver = $major . "." . $minor . "." . $micro . $qualifier;
return $ver;
}
# this function put the max version on each bundles to be able to remove
# duplicate deps with 'sort -u' command.
sub prepareOSGiBundlesList {
foreach $bundle (@_) {
foreach $cmp (@_) {
if ( $bundle->{NAME} eq $cmp->{NAME} ) {
$result = compareVersion( $bundle->{VERSION}, $cmp->{VERSION} );
if ( $result < 0 ) {
$bundle->{VERSION} = $cmp->{VERSION};
}
}
}
}
return @_;
}
# this function returns a negative integer, zero, or a positive integer if
# $ver1 is less than, equal to, or greater than $ver2.
#
# REMEMBER: we mimic org.osgi.framework.Version#compareTo method but
# *at this time* we don't take care of the qualifier part of the version.
sub compareVersion {
my $ver1 = $_[0];
my $ver2 = $_[1];
$ver1 = "0.0.0" if ( $ver1 eq "" );
$ver2 = "0.0.0" if ( $ver2 eq "" );
$ver1 =~ m/([0-9]+)(\.)([0-9]+)(\.)([0-9]+)/;
$major1 = $1;
$minor1 = $3;
$micro1 = $5;
$ver2 =~ m/([0-9]+)(\.)([0-9]+)(\.)([0-9]+)/;
$major2 = $1;
$minor2 = $3;
$micro2 = $5;
$result = $major1 - $major2;
return $result if ( $result != 0 );
$result = $minor1 - $minor2;
return $result if ( $result != 0 );
$result = $micro1 - $micro2;
return $result if ( $result != 0 );
return $result;
}