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#!/usr/bin/perl -Tw
#
# perldeps.pl -- Analyze dependencies of Perl packages
#
# Michael Jennings
# 7 November 2005
#
# $Id: perldeps.pl,v 1.6 2006/04/04 20:12:03 mej Exp $
#
use strict;
use Config;
use File::Basename;
use File::Find;
use Getopt::Long;
use POSIX;
############### Debugging stolen from Mezzanine::Util ###############
my $DEBUG = 0;
# Debugging output
sub
dprintf(@)
{
my ($f, $l, $s, $format);
my @params = @_;
return if (! $DEBUG);
$format = shift @params;
if (!scalar(@params)) {
return dprint($format);
}
(undef, undef, undef, $s) = caller(1);
if (!defined($s)) {
$s = "MAIN";
}
(undef, $f, $l) = caller(0);
$f =~ s/^.*\/([^\/]+)$/$1/;
$s =~ s/^\w+:://g;
$s .= "()" if ($s =~ /^\w+$/);
$f = "" if (!defined($f));
$l = "" if (!defined($l));
$format = "" if (!defined($format));
for (my $i = 0; $i < scalar(@params); $i++) {
if (!defined($params[$i])) {
$params[$i] = "<undef>";
}
}
printf("[$f/$l/$s] $format", @params);
}
sub
dprint(@)
{
my ($f, $l, $s);
my @params = @_;
return if (! $DEBUG);
(undef, undef, undef, $s) = caller(1);
if (!defined($s)) {
$s = "MAIN";
}
(undef, $f, $l) = caller(0);
$f =~ s/^.*\/([^\/]+)$/$1/;
$s =~ s/\w+:://g;
$s .= "()" if ($s =~ /^\w+$/);
$f = "" if (!defined($f));
$l = "" if (!defined($l));
$s = "" if (!defined($s));
for (my $i = 0; $i < scalar(@params); $i++) {
if (!defined($params[$i])) {
$params[$i] = "<undef>";
}
}
print "[$f/$l/$s] ", @params;
}
############### Module::ScanDeps Code ###############
use constant dl_ext => ".$Config{dlext}";
use constant lib_ext => $Config{lib_ext};
use constant is_insensitive_fs => (
-s $0
and (-s lc($0) || -1) == (-s uc($0) || -1)
and (-s lc($0) || -1) == -s $0
);
my $CurrentPackage = '';
my $SeenTk;
# Pre-loaded module dependencies
my %Preload = (
'AnyDBM_File.pm' => [qw( SDBM_File.pm )],
'Authen/SASL.pm' => 'sub',
'Bio/AlignIO.pm' => 'sub',
'Bio/Assembly/IO.pm' => 'sub',
'Bio/Biblio/IO.pm' => 'sub',
'Bio/ClusterIO.pm' => 'sub',
'Bio/CodonUsage/IO.pm' => 'sub',
'Bio/DB/Biblio.pm' => 'sub',
'Bio/DB/Flat.pm' => 'sub',
'Bio/DB/GFF.pm' => 'sub',
'Bio/DB/Taxonomy.pm' => 'sub',
'Bio/Graphics/Glyph.pm' => 'sub',
'Bio/MapIO.pm' => 'sub',
'Bio/Matrix/IO.pm' => 'sub',
'Bio/Matrix/PSM/IO.pm' => 'sub',
'Bio/OntologyIO.pm' => 'sub',
'Bio/PopGen/IO.pm' => 'sub',
'Bio/Restriction/IO.pm' => 'sub',
'Bio/Root/IO.pm' => 'sub',
'Bio/SearchIO.pm' => 'sub',
'Bio/SeqIO.pm' => 'sub',
'Bio/Structure/IO.pm' => 'sub',
'Bio/TreeIO.pm' => 'sub',
'Bio/LiveSeq/IO.pm' => 'sub',
'Bio/Variation/IO.pm' => 'sub',
'Crypt/Random.pm' => sub {
_glob_in_inc('Crypt/Random/Provider', 1);
},
'Crypt/Random/Generator.pm' => sub {
_glob_in_inc('Crypt/Random/Provider', 1);
},
'DBI.pm' => sub {
grep !/\bProxy\b/, _glob_in_inc('DBD', 1);
},
'DBIx/SearchBuilder.pm' => 'sub',
'DBIx/ReportBuilder.pm' => 'sub',
'Device/ParallelPort.pm' => 'sub',
'Device/SerialPort.pm' => [ qw(
termios.ph asm/termios.ph sys/termiox.ph sys/termios.ph sys/ttycom.ph
) ],
'ExtUtils/MakeMaker.pm' => sub {
grep /\bMM_/, _glob_in_inc('ExtUtils', 1);
},
'File/Basename.pm' => [qw( re.pm )],
'File/Spec.pm' => sub {
require File::Spec;
map { my $name = $_; $name =~ s!::!/!g; "$name.pm" } @File::Spec::ISA;
},
'HTTP/Message.pm' => [ qw(
URI/URL.pm URI.pm
) ],
'IO.pm' => [ qw(
IO/Handle.pm IO/Seekable.pm IO/File.pm
IO/Pipe.pm IO/Socket.pm IO/Dir.pm
) ],
'IO/Socket.pm' => [qw( IO/Socket/UNIX.pm )],
'LWP/UserAgent.pm' => [ qw(
URI/URL.pm URI/http.pm LWP/Protocol/http.pm
LWP/Protocol/https.pm
), _glob_in_inc("LWP/Authen", 1) ],
'Locale/Maketext/Lexicon.pm' => 'sub',
'Locale/Maketext/GutsLoader.pm' => [qw( Locale/Maketext/Guts.pm )],
'Mail/Audit.pm' => 'sub',
'Math/BigInt.pm' => 'sub',
'Math/BigFloat.pm' => 'sub',
'Module/Build.pm' => 'sub',
'Module/Pluggable.pm' => sub {
_glob_in_inc("$CurrentPackage/Plugin", 1);
},
'MIME/Decoder.pm' => 'sub',
'Net/DNS/RR.pm' => 'sub',
'Net/FTP.pm' => 'sub',
'Net/SSH/Perl.pm' => 'sub',
'PDF/API2/Resource/Font.pm' => 'sub',
'PDF/API2/Basic/TTF/Font.pm' => sub {
_glob_in_inc('PDF/API2/Basic/TTF', 1);
},
'PDF/Writer.pm' => 'sub',
'POE' => [ qw(
POE/Kernel.pm POE/Session.pm
) ],
'POE/Kernel.pm' => [
map "POE/Resource/$_.pm", qw(
Aliases Events Extrefs FileHandles
SIDs Sessions Signals Statistics
)
],
'Parse/AFP.pm' => 'sub',
'Parse/Binary.pm' => 'sub',
'Regexp/Common.pm' => 'sub',
'SOAP/Lite.pm' => sub {
(($] >= 5.008 ? ('utf8.pm') : ()), _glob_in_inc('SOAP/Transport', 1));
},
'SQL/Parser.pm' => sub {
_glob_in_inc('SQL/Dialects', 1);
},
'SVN/Core.pm' => sub {
_glob_in_inc('SVN', 1),
map "auto/SVN/$_->{name}", _glob_in_inc('auto/SVN'),
},
'SVK/Command.pm' => sub {
_glob_in_inc('SVK', 1);
},
'SerialJunk.pm' => [ qw(
termios.ph asm/termios.ph sys/termiox.ph sys/termios.ph sys/ttycom.ph
) ],
'Template.pm' => 'sub',
'Term/ReadLine.pm' => 'sub',
'Tk.pm' => sub {
$SeenTk = 1;
qw( Tk/FileSelect.pm Encode/Unicode.pm );
},
'Tk/Balloon.pm' => [qw( Tk/balArrow.xbm )],
'Tk/BrowseEntry.pm' => [qw( Tk/cbxarrow.xbm Tk/arrowdownwin.xbm )],
'Tk/ColorEditor.pm' => [qw( Tk/ColorEdit.xpm )],
'Tk/FBox.pm' => [qw( Tk/folder.xpm Tk/file.xpm )],
'Tk/Toplevel.pm' => [qw( Tk/Wm.pm )],
'URI.pm' => sub {
grep !/.\b[_A-Z]/, _glob_in_inc('URI', 1);
},
'Win32/EventLog.pm' => [qw( Win32/IPC.pm )],
'Win32/Exe.pm' => 'sub',
'Win32/TieRegistry.pm' => [qw( Win32API/Registry.pm )],
'Win32/SystemInfo.pm' => [qw( Win32/cpuspd.dll )],
'XML/Parser.pm' => sub {
_glob_in_inc('XML/Parser/Style', 1),
_glob_in_inc('XML/Parser/Encodings', 1),
},
'XML/Parser/Expat.pm' => sub {
($] >= 5.008) ? ('utf8.pm') : ();
},
'XML/SAX.pm' => [qw( XML/SAX/ParserDetails.ini ) ],
'XMLRPC/Lite.pm' => sub {
_glob_in_inc('XMLRPC/Transport', 1),;
},
'diagnostics.pm' => sub {
_find_in_inc('Pod/perldiag.pod')
? 'Pod/perldiag.pl'
: 'pod/perldiag.pod';
},
'utf8.pm' => [
'utf8_heavy.pl', do {
my $dir = 'unicore';
my @subdirs = qw( To );
my @files = map "$dir/lib/$_->{name}", _glob_in_inc("$dir/lib");
if (@files) {
# 5.8.x
push @files, (map "$dir/$_.pl", qw( Exact Canonical ));
}
else {
# 5.6.x
$dir = 'unicode';
@files = map "$dir/Is/$_->{name}", _glob_in_inc("$dir/Is")
or return;
push @subdirs, 'In';
}
foreach my $subdir (@subdirs) {
foreach (_glob_in_inc("$dir/$subdir")) {
push @files, "$dir/$subdir/$_->{name}";
}
}
@files;
}
],
'charnames.pm' => [
_find_in_inc('unicore/Name.pl') ? 'unicore/Name.pl' : 'unicode/Name.pl'
],
);
my $Keys = 'files|keys|recurse|rv|skip|first|execute|compile';
sub scan_deps {
my %args = (
rv => {},
(@_ and $_[0] =~ /^(?:$Keys)$/o) ? @_ : (files => [@_], recurse => 1)
);
scan_deps_static(\%args);
if ($args{execute} or $args{compile}) {
scan_deps_runtime(
rv => $args{rv},
files => $args{files},
execute => $args{execute},
compile => $args{compile},
skip => $args{skip}
);
}
return ($args{rv});
}
sub scan_deps_static {
my ($args) = @_;
my ($files, $keys, $recurse, $rv, $skip, $first, $execute, $compile) =
@$args{qw( files keys recurse rv skip first execute compile )};
$rv ||= {};
$skip ||= {};
foreach my $file (@{$files}) {
my $key = shift @{$keys};
next if $skip->{$file}++;
next if is_insensitive_fs()
and $file ne lc($file) and $skip->{lc($file)}++;
local *FH;
open FH, $file or die "Cannot open $file: $!";
$SeenTk = 0;
# Line-by-line scanning
LINE:
while (<FH>) {
chomp(my $line = $_);
foreach my $pm (scan_line($line)) {
last LINE if $pm eq '__END__';
if ($pm eq '__POD__') {
while (<FH>) { last if (/^=cut/) }
next LINE;
}
$pm = 'CGI/Apache.pm' if /^Apache(?:\.pm)$/;
add_deps(
used_by => $key,
rv => $rv,
modules => [$pm],
skip => $skip
);
my $preload = $Preload{$pm} or next;
if ($preload eq 'sub') {
$pm =~ s/\.p[mh]$//i;
$preload = [ _glob_in_inc($pm, 1) ];
}
elsif (UNIVERSAL::isa($preload, 'CODE')) {
$preload = [ $preload->($pm) ];
}
add_deps(
used_by => $key,
rv => $rv,
modules => $preload,
skip => $skip
);
}
}
close FH;
# }}}
}
# Top-level recursion handling {{{
while ($recurse) {
my $count = keys %$rv;
my @files = sort grep -T $_->{file}, values %$rv;
scan_deps_static({
files => [ map $_->{file}, @files ],
keys => [ map $_->{key}, @files ],
rv => $rv,
skip => $skip,
recurse => 0,
}) or ($args->{_deep} and return);
last if $count == keys %$rv;
}
# }}}
return $rv;
}
sub scan_deps_runtime {
my %args = (
perl => $^X,
rv => {},
(@_ and $_[0] =~ /^(?:$Keys)$/o) ? @_ : (files => [@_], recurse => 1)
);
my ($files, $rv, $execute, $compile, $skip, $perl) =
@args{qw( files rv execute compile skip perl )};
$files = (ref($files)) ? $files : [$files];
my ($inchash, $incarray, $dl_shared_objects) = ({}, [], []);
if ($compile) {
my $file;
foreach $file (@$files) {
($inchash, $dl_shared_objects, $incarray) = ({}, [], []);
_compile($perl, $file, $inchash, $dl_shared_objects, $incarray);
my $rv_sub = _make_rv($inchash, $dl_shared_objects, $incarray);
_merge_rv($rv_sub, $rv);
}
}
elsif ($execute) {
my $excarray = (ref($execute)) ? $execute : [@$files];
my $exc;
my $first_flag = 1;
foreach $exc (@$excarray) {
($inchash, $dl_shared_objects, $incarray) = ({}, [], []);
_execute(
$perl, $exc, $inchash, $dl_shared_objects, $incarray,
$first_flag
);
$first_flag = 0;
}
my $rv_sub = _make_rv($inchash, $dl_shared_objects, $incarray);
_merge_rv($rv_sub, $rv);
}
return ($rv);
}
sub scan_line {
my $line = shift;
my %found;
return '__END__' if $line =~ /^__(?:END|DATA)__$/;
return '__POD__' if $line =~ /^=\w/;
$line =~ s/\s*#.*$//;
$line =~ s/[\\\/]+/\//g;
foreach (split(/;/, $line)) {
if (/^\s*package\s+(\w+);/) {
$CurrentPackage = $1;
$CurrentPackage =~ s{::}{/}g;
return;
}
return if /^\s*(use|require)\s+[\d\._]+/;
if (my ($libs) = /\b(?:use\s+lib\s+|(?:unshift|push)\W+\@INC\W+)(.+)/)
{
my $archname =
defined($Config{archname}) ? $Config{archname} : '';
my $ver = defined($Config{version}) ? $Config{version} : '';
foreach (grep(/\w/, split(/["';() ]/, $libs))) {
unshift(@INC, "$_/$ver") if -d "$_/$ver";
unshift(@INC, "$_/$archname") if -d "$_/$archname";
unshift(@INC, "$_/$ver/$archname") if -d "$_/$ver/$archname";
}
next;
}
$found{$_}++ for scan_chunk($_);
}
return sort keys %found;
}
sub scan_chunk {
my $chunk = shift;
# Module name extraction heuristics {{{
my $module = eval {
$_ = $chunk;
return [ 'base.pm',
map { s{::}{/}g; "$_.pm" }
grep { length and !/^q[qw]?$/ } split(/[^\w:]+/, $1) ]
if /^\s* use \s+ base \s+ (.*)/sx;
return [ 'Class/Autouse.pm',
map { s{::}{/}g; "$_.pm" }
grep { length and !/^:|^q[qw]?$/ } split(/[^\w:]+/, $1) ]
if /^\s* use \s+ Class::Autouse \s+ (.*)/sx
or /^\s* Class::Autouse \s* -> \s* autouse \s* (.*)/sx;
return [ 'POE.pm',
map { s{::}{/}g; "POE/$_.pm" }
grep { length and !/^q[qw]?$/ } split(/[^\w:]+/, $1) ]
if /^\s* use \s+ POE \s+ (.*)/sx;
return [ 'encoding.pm',
map { _find_encoding($_) }
grep { length and !/^q[qw]?$/ } split(/[^\w:]+/, $1) ]
if /^\s* use \s+ encoding \s+ (.*)/sx;
return $1 if /(?:^|\s)(?:use|no|require)\s+([\w:\.\-\\\/\"\']+)/;
return $1
if /(?:^|\s)(?:use|no|require)\s+\(\s*([\w:\.\-\\\/\"\']+)\s*\)/;
if ( s/(?:^|\s)eval\s+\"([^\"]+)\"/$1/
or s/(?:^|\s)eval\s*\(\s*\"([^\"]+)\"\s*\)/$1/)
{
return $1 if /(?:^|\s)(?:use|no|require)\s+([\w:\.\-\\\/\"\']*)/;
}
return "File/Glob.pm" if /<[^>]*[^\$\w>][^>]*>/;
return "DBD/$1.pm" if /\b[Dd][Bb][Ii]:(\w+):/;
if (/(?:(:encoding)|\b(?:en|de)code)\(\s*['"]?([-\w]+)/) {
my $mod = _find_encoding($2);
return [ 'PerlIO.pm', $mod ] if $1 and $mod;
return $mod if $mod;
}
return $1 if /(?:^|\s)(?:do|require)\s+[^"]*"(.*?)"/;
return $1 if /(?:^|\s)(?:do|require)\s+[^']*'(.*?)'/;
return $1 if /[^\$]\b([\w:]+)->\w/ and $1 ne 'Tk';
return $1 if /\b(\w[\w:]*)::\w+\(/;
if ($SeenTk) {
my @modules;
while (/->\s*([A-Z]\w+)/g) {
push @modules, "Tk/$1.pm";
}
while (/->\s*Scrolled\W+([A-Z]\w+)/g) {
push @modules, "Tk/$1.pm";
push @modules, "Tk/Scrollbar.pm";
}
return \@modules;
}
return;
};
# }}}
return unless defined($module);
return wantarray ? @$module : $module->[0] if ref($module);
$module =~ s/^['"]//;
return unless $module =~ /^\w/;
$module =~ s/\W+$//;
$module =~ s/::/\//g;
return if $module =~ /^(?:[\d\._]+|'.*[^']|".*[^"])$/;
$module .= ".pm" unless $module =~ /\./;
return $module;
}
sub _find_encoding {
return unless $] >= 5.008 and eval { require Encode; %Encode::ExtModule };
my $mod = $Encode::ExtModule{ Encode::find_encoding($_[0])->name }
or return;
$mod =~ s{::}{/}g;
return "$mod.pm";
}
sub _add_info {
my ($rv, $module, $file, $used_by, $type) = @_;
return unless defined($module) and defined($file);
$rv->{$module} ||= {
file => $file,
key => $module,
type => $type,
};
push @{ $rv->{$module}{used_by} }, $used_by
if defined($used_by)
and $used_by ne $module
and !grep { $_ eq $used_by } @{ $rv->{$module}{used_by} };
}
sub add_deps {
my %args =
((@_ and $_[0] =~ /^(?:modules|rv|used_by)$/)
? @_
: (rv => (ref($_[0]) ? shift(@_) : undef), modules => [@_]));
my $rv = $args{rv} || {};
my $skip = $args{skip} || {};
my $used_by = $args{used_by};
foreach my $module (@{ $args{modules} }) {
next if exists $rv->{$module};
my $file = _find_in_inc($module) or next;
next if $skip->{$file};
next if is_insensitive_fs() and $skip->{lc($file)};
my $type = 'module';
$type = 'data' unless $file =~ /\.p[mh]$/i;
_add_info($rv, $module, $file, $used_by, $type);
if ($module =~ /(.*?([^\/]*))\.p[mh]$/i) {
my ($path, $basename) = ($1, $2);
foreach (_glob_in_inc("auto/$path")) {
next if $skip->{$_->{file}};
next if is_insensitive_fs() and $skip->{lc($_->{file})};
next if $_->{file} =~ m{\bauto/$path/.*/}; # weed out subdirs
next if $_->{name} =~ m/(?:^|\/)\.(?:exists|packlist)$/;
my $ext = lc($1) if $_->{name} =~ /(\.[^.]+)$/;
next if $ext eq lc(lib_ext());
my $type = 'shared' if $ext eq lc(dl_ext());
$type = 'autoload' if $ext eq '.ix' or $ext eq '.al';
$type ||= 'data';
_add_info($rv, "auto/$path/$_->{name}", $_->{file}, $module,
$type);
}
}
}
return $rv;
}
sub _find_in_inc {
my $file = shift;
# absolute file names
return $file if -f $file;
foreach my $dir (grep !/\bBSDPAN\b/, @INC) {
return "$dir/$file" if -f "$dir/$file";
}
return;
}
sub _glob_in_inc {
my $subdir = shift;
my $pm_only = shift;
my @files;
require File::Find;
foreach my $dir (map "$_/$subdir", grep !/\bBSDPAN\b/, @INC) {
next unless -d $dir;
File::Find::find({
"wanted" => sub {
my $name = $File::Find::name;
$name =~ s!^\Q$dir\E/!!;
return if $pm_only and lc($name) !~ /\.p[mh]$/i;
push @files, $pm_only
? "$subdir/$name"
: { file => $File::Find::name,
name => $name,
}
if -f;
},
"untaint" => 1,
"untaint_skip" => 1,
"untaint_pattern" => qr|^([-+@\w./]+)$|
}, $dir
);
}
return @files;
}
# App::Packer compatibility functions
sub new {
my ($class, $self) = @_;
return bless($self ||= {}, $class);
}
sub set_file {
my $self = shift;
foreach my $script (@_) {
my $basename = $script;
$basename =~ s/.*\///;
$self->{main} = {
key => $basename,
file => $script,
};
}
}
sub set_options {
my $self = shift;
my %args = @_;
foreach my $module (@{ $args{add_modules} }) {
$module =~ s/::/\//g;
$module .= '.pm' unless $module =~ /\.p[mh]$/i;
my $file = _find_in_inc($module) or next;
$self->{files}{$module} = $file;
}
}
sub calculate_info {
my $self = shift;
my $rv = scan_deps(
keys => [ $self->{main}{key}, sort keys %{ $self->{files} }, ],
files => [ $self->{main}{file},
map { $self->{files}{$_} } sort keys %{ $self->{files} },
],
recurse => 1,
);
my $info = {
main => { file => $self->{main}{file},
store_as => $self->{main}{key},
},
};
my %cache = ($self->{main}{key} => $info->{main});
foreach my $key (sort keys %{ $self->{files} }) {
my $file = $self->{files}{$key};
$cache{$key} = $info->{modules}{$key} = {
file => $file,
store_as => $key,
used_by => [ $self->{main}{key} ],
};
}
foreach my $key (sort keys %{$rv}) {
my $val = $rv->{$key};
if ($cache{ $val->{key} }) {
push @{ $info->{ $val->{type} }->{ $val->{key} }->{used_by} },
@{ $val->{used_by} };
}
else {
$cache{ $val->{key} } = $info->{ $val->{type} }->{ $val->{key} } =
{ file => $val->{file},
store_as => $val->{key},
used_by => $val->{used_by},
};
}
}
$self->{info} = { main => $info->{main} };
foreach my $type (sort keys %{$info}) {
next if $type eq 'main';
my @val;
if (UNIVERSAL::isa($info->{$type}, 'HASH')) {
foreach my $val (sort values %{ $info->{$type} }) {
@{ $val->{used_by} } = map $cache{$_} || "!!$_!!",
@{ $val->{used_by} };
push @val, $val;
}
}
$type = 'modules' if $type eq 'module';
$self->{info}{$type} = \@val;
}
}
sub get_files {
my $self = shift;
return $self->{info};
}
# scan_deps_runtime utility functions
sub _compile {
my ($perl, $file, $inchash, $dl_shared_objects, $incarray) = @_;
my $fname = File::Temp::mktemp("$file.XXXXXX");
my $fhin = FileHandle->new($file) or die "Couldn't open $file\n";
my $fhout = FileHandle->new("> $fname") or die "Couldn't open $fname\n";
my $line = do { local $/; <$fhin> };
$line =~ s/use Module::ScanDeps::DataFeed.*?\n//sg;
$line =~ s/^(.*?)((?:[\r\n]+__(?:DATA|END)__[\r\n]+)|$)/
use Module::ScanDeps::DataFeed '$fname.out';
sub {
$1
}
$2/s;
$fhout->print($line);
$fhout->close;
$fhin->close;
system($perl, $fname);
_extract_info("$fname.out", $inchash, $dl_shared_objects, $incarray);
unlink("$fname");
unlink("$fname.out");
}
sub _execute {
my ($perl, $file, $inchash, $dl_shared_objects, $incarray, $firstflag) = @_;
$DB::single = $DB::single = 1;
my $fname = _abs_path(File::Temp::mktemp("$file.XXXXXX"));
my $fhin = FileHandle->new($file) or die "Couldn't open $file";
my $fhout = FileHandle->new("> $fname") or die "Couldn't open $fname";
my $line = do { local $/; <$fhin> };
$line =~ s/use Module::ScanDeps::DataFeed.*?\n//sg;
$line = "use Module::ScanDeps::DataFeed '$fname.out';\n" . $line;
$fhout->print($line);
$fhout->close;
$fhin->close;
File::Path::rmtree( ['_Inline'], 0, 1); # XXX hack
system($perl, $fname) == 0 or die "SYSTEM ERROR in executing $file: $?";
_extract_info("$fname.out", $inchash, $dl_shared_objects, $incarray);
unlink("$fname");
unlink("$fname.out");
}
sub _make_rv {
my ($inchash, $dl_shared_objects, $inc_array) = @_;
my $rv = {};
my @newinc = map(quotemeta($_), @$inc_array);
my $inc = join('|', sort { length($b) <=> length($a) } @newinc);
require File::Spec;
my $key;
foreach $key (keys(%$inchash)) {
my $newkey = $key;
$newkey =~ s"^(?:(?:$inc)/?)""sg if File::Spec->file_name_is_absolute($newkey);
$rv->{$newkey} = {
'used_by' => [],
'file' => $inchash->{$key},
'type' => _gettype($inchash->{$key}),
'key' => $key
};
}
my $dl_file;
foreach $dl_file (@$dl_shared_objects) {
my $key = $dl_file;
$key =~ s"^(?:(?:$inc)/?)""s;
$rv->{$key} = {
'used_by' => [],
'file' => $dl_file,
'type' => 'shared',
'key' => $key
};
}
return $rv;
}
sub _extract_info {
my ($fname, $inchash, $dl_shared_objects, $incarray) = @_;
use vars qw(%inchash @dl_shared_objects @incarray);
my $fh = FileHandle->new($fname) or die "Couldn't open $fname";
my $line = do { local $/; <$fh> };
$fh->close;
eval $line;
$inchash->{$_} = $inchash{$_} for keys %inchash;
@$dl_shared_objects = @dl_shared_objects;
@$incarray = @incarray;
}
sub _gettype {
my $name = shift;
my $dlext = quotemeta(dl_ext());
return 'autoload' if $name =~ /(?:\.ix|\.al|\.bs)$/i;
return 'module' if $name =~ /\.p[mh]$/i;
return 'shared' if $name =~ /\.$dlext$/i;
return 'data';
}
sub _merge_rv {
my ($rv_sub, $rv) = @_;
my $key;
foreach $key (keys(%$rv_sub)) {
my %mark;
if ($rv->{$key} and _not_dup($key, $rv, $rv_sub)) {
warn "different modules for file: $key: were found" .
"(using the version) after the '=>': ".
"$rv->{$key}{file} => $rv_sub->{$key}{file}\n";
$rv->{$key}{used_by} = [
grep (!$mark{$_}++,
@{ $rv->{$key}{used_by} },
@{ $rv_sub->{$key}{used_by} })
];
@{ $rv->{$key}{used_by} } = grep length, @{ $rv->{$key}{used_by} };
$rv->{$key}{file} = $rv_sub->{$key}{file};
}
elsif ($rv->{$key}) {
$rv->{$key}{used_by} = [
grep (!$mark{$_}++,
@{ $rv->{$key}{used_by} },
@{ $rv_sub->{$key}{used_by} })
];
@{ $rv->{$key}{used_by} } = grep length, @{ $rv->{$key}{used_by} };
}
else {
$rv->{$key} = {
used_by => [ @{ $rv_sub->{$key}{used_by} } ],
file => $rv_sub->{$key}{file},
key => $rv_sub->{$key}{key},
type => $rv_sub->{$key}{type}
};
@{ $rv->{$key}{used_by} } = grep length, @{ $rv->{$key}{used_by} };
}
}
}
sub _not_dup {
my ($key, $rv1, $rv2) = @_;
(_abs_path($rv1->{$key}{file}) ne _abs_path($rv2->{$key}{file}));
}
sub _abs_path {
return join(
'/',
Cwd::abs_path(File::Basename::dirname($_[0])),
File::Basename::basename($_[0]),
);
}
#####################################################
### Actual perldeps.pl code starts here.
# Print usage information
sub
print_usage_info($)
{
my $code = shift || 0;
my ($leader, $underbar);
print "\n";
$leader = "$0 Usage Information";
$underbar = $leader;
$underbar =~ s/./-/g;
print "$leader\n$underbar\n";
print "\n";
print " Syntax: $0 [ options ] [ path(s)/file(s) ]\n";
print "\n";
print " -h --help Show this usage information\n";
print " -v --version Show version and copyright\n";
print " -d --debug Turn on debugging\n";
print " -p --provides Find things provided by path(s)/file(s)\n";
print " -r --requires Find things required by path(s)/file(s)\n";
#print " \n";
print "\nNOTE: Path(s)/file(s) can also be specified on STDIN. Default is \@INC.\n\n";
exit($code);
}
# Locate perl modules (*.pm) in given locations.
sub
find_perl_modules(@)
{
my @locations = @_;
my %modules;
foreach my $loc (@locations) {
if (-f $loc) {
# It's a file. Assume it's a Perl module.
#print "Found module: $loc.\n";
$modules{$loc} = 1;
} elsif (-d $loc) {
my @tmp;
# Recurse the directory tree looking for all modules inside it.
&File::Find::find({
"wanted" => sub {
if ((-s _) && (substr($File::Find::fullname, -3, 3) eq ".pm")) {
push @tmp, $File::Find::fullname;
}
},
"follow_fast" => 1,
"no_chdir" => 1,
"untaint" => 1,
"untaint_skip" => 1,
"untaint_pattern" => qr|^([-+@\w./]+)$|
}, $loc);
# @tmp is now a list with all non-empty *.pm files in and under $loc.
# Untaint and save in %modules hash.
foreach my $module (@tmp) {
if ($module =~ /^([-+@\w.\/]+)$/) {
$modules{$1} = 1;
#print "Found module: $1\n";
}
}
} else {
# Something wicked this way comes.
print STDERR "$0: Error: Don't know what to do with location \"$loc\"\n";
}
}
return keys(%modules);
}
# Generate an RPM-style "Provides:" list for the given modules.
sub
find_provides(@)
{
my @modules = @_;
my @prov;
foreach my $mod (@modules) {
my (@contents, @pkgs);
my $mod_path;
local *MOD;
$mod_path = dirname($mod);
if (!open(MOD, $mod)) {
warn "Unable to read module $mod -- $!\n";
next;
}
@contents = <MOD>;
if (!close(MOD)) {
warn "Unable to close module $mod -- $!\n";
}
if (!scalar(grep { $_ eq $mod_path } @INC)) {
push @INC, $mod_path;
}
foreach my $line (grep { $_ =~ /^\s*package\s+/ } @contents) {
if ($line =~ /^\s*package\s+([^\;\s]+)\s*\;/) {
push @pkgs, $1;
}
}
# Now we have a list of packages. Load up the modules and get their versions.
foreach my $pkg (@pkgs) {
my $ret;
local ($SIG{"__WARN__"}, $SIG{"__DIE__"});
# Make sure eval() can't display warnings/errors.
$SIG{"__DIE__"} = $SIG{"__WARN__"} = sub {0;};
$ret = eval("no strict ('vars', 'subs', 'refs'); use $pkg (); return $pkg->VERSION || 0.0;");
if ($@) {
dprint "Unable to parse version number from $pkg -- $@. Assuming 0.\n";
$ret = 0;
}
if (! $ret) {
$ret = 0;
}
push @prov, "perl($pkg) = $ret";
}
}
printf("Provides: %s\n", join(", ", sort(@prov)));
}
# Generate an RPM-style "Requires:" list for the given modules.
sub
find_requires(@)
{
my @modules = @_;
my @reqs;
my $reqs;
$reqs = &scan_deps("files" => \@modules, "recurse" => 0);
foreach my $key (grep { $reqs->{$_}{"type"} eq "module" } sort(keys(%{$reqs}))) {
if (substr($key, -3, 3) eq ".pm") {
$key = substr($key, 0, -3);
}
$key =~ s!/!::!g;
push @reqs, "perl($key)";
}
printf("Requires: %s\n", join(", ", @reqs));
}
sub
main()
{
my $VERSION = '1.0';
my (@locations, @modules);
my %OPTION;
# For taint checks
delete @ENV{("IFS", "CDPATH", "ENV", "BASH_ENV")};
$ENV{"PATH"} = "/bin:/usr/bin:/sbin:/usr/sbin:/etc:/usr/ucb";
foreach my $shell ("/bin/bash", "/usr/bin/ksh", "/bin/ksh", "/bin/sh", "/sbin/sh") {
if (-f $shell) {
$ENV{"SHELL"} = $shell;
last;
}
}
$ENV{"LANG"} = "C" if (! $ENV{"LANG"});
umask 022;
select STDERR; $| = 1;
select STDOUT; $| = 1;
Getopt::Long::Configure("no_getopt_compat", "bundling", "no_ignore_case");
Getopt::Long::GetOptions(\%OPTION, "debug|d!", "help|h", "version|v", "provides|p", "requires|r");
# Post-parse the options stuff
select STDOUT; $| = 1;
if ($OPTION{"version"}) {
# Do not edit this variable. It is updated automatically by CVS when you commit
my $rcs_info = 'CVS Revision $Revision: 1.6 $ created on $Date: 2006/04/04 20:12:03 $ by $Author: mej $ ';
$rcs_info =~ s/\$\s*Revision: (\S+) \$/$1/;
$rcs_info =~ s/\$\s*Date: (\S+) (\S+) \$/$1 at $2/;
$rcs_info =~ s/\$\s*Author: (\S+) \$ /$1/;
print "\n";
print "perldeps.pl $VERSION by Michael Jennings <mej\@eterm.org>\n";
print "Copyright (c) 2005-2006, Michael Jennings\n";
print " ($rcs_info)\n";
print "\n";
return 0;
} elsif ($OPTION{"help"}) {
&print_usage_info(0); # Never returns
}
push @locations, @ARGV;
if (!scalar(@ARGV) && !(-t STDIN)) {
@locations = <STDIN>;
}
if (!scalar(@locations)) {
@locations = @INC;
}
if (!($OPTION{"provides"} || $OPTION{"requires"})) {
&print_usage_info(-1); # Never returns
}
# Catch bogus warning messages like "A thread exited while 2 threads were running"
$SIG{"__DIE__"} = $SIG{"__WARN__"} = sub {0;};
@modules = &find_perl_modules(@locations);
if ($OPTION{"provides"}) {
&find_provides(@modules);
}
if ($OPTION{"requires"}) {
&find_requires(@modules);
}
return 0;
}
exit &main();