diff options
Diffstat (limited to 'chromium/third_party/cygwin/lib/perl5/vendor_perl/5.10/Module/ScanDeps.pm')
-rw-r--r-- | chromium/third_party/cygwin/lib/perl5/vendor_perl/5.10/Module/ScanDeps.pm | 1324 |
1 files changed, 0 insertions, 1324 deletions
diff --git a/chromium/third_party/cygwin/lib/perl5/vendor_perl/5.10/Module/ScanDeps.pm b/chromium/third_party/cygwin/lib/perl5/vendor_perl/5.10/Module/ScanDeps.pm deleted file mode 100644 index 462a0764305..00000000000 --- a/chromium/third_party/cygwin/lib/perl5/vendor_perl/5.10/Module/ScanDeps.pm +++ /dev/null @@ -1,1324 +0,0 @@ -package Module::ScanDeps; - -use 5.006; -use strict; -use vars qw( $VERSION @EXPORT @EXPORT_OK $CurrentPackage @IncludeLibs $ScanFileRE ); - -$VERSION = '0.82'; -@EXPORT = qw( scan_deps scan_deps_runtime ); -@EXPORT_OK = qw( scan_line scan_chunk add_deps scan_deps_runtime path_to_inc_name ); - -use Config; -use Exporter; -use base 'Exporter'; -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 $0 -); - -use version; -use Cwd (); -use File::Path (); -use File::Temp (); -use File::Spec (); -use File::Basename (); -use FileHandle; -use Module::Build::ModuleInfo; - -$ScanFileRE = qr/(?:^|\\|\/)(?:[^.]*|.*\.(?i:p[ml]|t|al))$/; - -=head1 NAME - -Module::ScanDeps - Recursively scan Perl code for dependencies - -=head1 VERSION - -This document describes version 0.82 of Module::ScanDeps, released -January 28, 2008. - -=head1 SYNOPSIS - -Via the command-line program L<scandeps.pl>: - - % scandeps.pl *.pm # Print PREREQ_PM section for *.pm - % scandeps.pl -e "use utf8" # Read script from command line - % scandeps.pl -B *.pm # Include core modules - % scandeps.pl -V *.pm # Show autoload/shared/data files - -Used in a program; - - use Module::ScanDeps; - - # standard usage - my $hash_ref = scan_deps( - files => [ 'a.pl', 'b.pl' ], - recurse => 1, - ); - - # shorthand; assume recurse == 1 - my $hash_ref = scan_deps( 'a.pl', 'b.pl' ); - - # App::Packer::Frontend compatible interface - # see App::Packer::Frontend for the structure returned by get_files - my $scan = Module::ScanDeps->new; - $scan->set_file( 'a.pl' ); - $scan->set_options( add_modules => [ 'Test::More' ] ); - $scan->calculate_info; - my $files = $scan->get_files; - -=head1 DESCRIPTION - -This module scans potential modules used by perl programs, and returns a -hash reference; its keys are the module names as appears in C<%INC> -(e.g. C<Test/More.pm>); the values are hash references with this structure: - - { - file => '/usr/local/lib/perl5/5.8.0/Test/More.pm', - key => 'Test/More.pm', - type => 'module', # or 'autoload', 'data', 'shared' - used_by => [ 'Test/Simple.pm', ... ], - uses => [ 'Test/Other.pm', ... ], - } - -One function, C<scan_deps>, is exported by default. Other -functions such as (C<scan_line>, C<scan_chunk>, C<add_deps>, C<path_to_inc_name>) -are exported upon request. - -Users of B<App::Packer> may also use this module as the dependency-checking -frontend, by tweaking their F<p2e.pl> like below: - - use Module::ScanDeps; - ... - my $packer = App::Packer->new( frontend => 'Module::ScanDeps' ); - ... - -Please see L<App::Packer::Frontend> for detailed explanation on -the structure returned by C<get_files>. - -=head2 B<scan_deps> - - $rv_ref = scan_deps( - files => \@files, recurse => $recurse, - rv => \%rv, skip => \%skip, - compile => $compile, execute => $execute, - ); - $rv_ref = scan_deps(@files); # shorthand, with recurse => 1 - -This function scans each file in C<@files>, registering their -dependencies into C<%rv>, and returns a reference to the updated -C<%rv>. The meaning of keys and values are explained above. - -If C<$recurse> is true, C<scan_deps> will call itself recursively, -to perform a breadth-first search on text files (as defined by the --T operator) found in C<%rv>. - -If the C<\%skip> is specified, files that exists as its keys are -skipped. This is used internally to avoid infinite recursion. - -If C<$compile> or C<$execute> is true, runs C<files> in either -compile-only or normal mode, then inspects their C<%INC> after -termination to determine additional runtime dependencies. - -If C<$execute> is an array reference, runs the files contained -in it instead of C<@files>. - -Additionally, an option C<warn_missing> is recognized. If set to true, -C<scan_deps> issues a warning to STDERR for every module file that the -scanned code depends but that wasn't found. Please note that this may -also report numerous false positives. That is why by default, the heuristic -silently drops all dependencies it cannot find. - -=head2 B<scan_deps_runtime> - -Like B<scan_deps>, but skips the static scanning part. - -=head2 B<scan_line> - - @modules = scan_line($line); - -Splits a line into chunks (currently with the semicolon characters), and -return the union of C<scan_chunk> calls of them. - -If the line is C<__END__> or C<__DATA__>, a single C<__END__> element is -returned to signify the end of the program. - -Similarly, it returns a single C<__POD__> if the line matches C</^=\w/>; -the caller is responsible for skipping appropriate number of lines -until C<=cut>, before calling C<scan_line> again. - -=head2 B<scan_chunk> - - $module = scan_chunk($chunk); - @modules = scan_chunk($chunk); - -Apply various heuristics to C<$chunk> to find and return the module -name(s) it contains. In scalar context, returns only the first module -or C<undef>. - -=head2 B<add_deps> - - $rv_ref = add_deps( rv => \%rv, modules => \@modules ); - $rv_ref = add_deps( @modules ); # shorthand, without rv - -Resolves a list of module names to its actual on-disk location, by -finding in C<@INC> and C<@Module::ScanDeps::IncludeLibs>; -modules that cannot be found are skipped. - -This function populates the C<%rv> hash with module/filename pairs, and -returns a reference to it. - -=head2 B<path_to_inc_name> - - $perl_name = path_to_inc_name($path, $warn) - -Assumes C<$path> refers to a perl file and does it's best to return the -name as it would appear in %INC. Returns undef if no match was found -and a prints a warning to STDERR if C<$warn> is true. - -E.g. if C<$path> = perl/site/lib/Module/ScanDeps.pm then C<$perl_name> -will be Module/ScanDeps.pm. - -=head1 NOTES - -=head2 B<@Module::ScanDeps::IncludeLibs> - -You can set this global variable to specify additional directories in -which to search modules without modifying C<@INC> itself. - -=head2 B<$Module::ScanDeps::ScanFileRE> - -You can set this global variable to specify a regular expression to -identify what files to scan. By default it includes all files of -the following types: .pm, .pl, .t and .al. Additionally, all files -without a suffix are considered. - -For instance, if you want to scan all files then use the following: - -C<$Module::ScanDeps::ScanFileRE = qr/./> - -=head1 CAVEATS - -This module intentially ignores the B<BSDPAN> hack on FreeBSD -- the -additional directory is removed from C<@INC> altogether. - -The static-scanning heuristic is not likely to be 100% accurate, especially -on modules that dynamically load other modules. - -Chunks that span multiple lines are not handled correctly. For example, -this one works: - - use base 'Foo::Bar'; - -But this one does not: - - use base - 'Foo::Bar'; - -=cut - -my $SeenTk; - -# Pre-loaded module dependencies {{{ -my %Preload; -%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', - 'Catalyst.pm' => sub { - return ('Catalyst/Runtime.pm', - 'Catalyst/Dispatcher.pm', - _glob_in_inc('Catalyst/DispatchType', 1)); - }, - 'Catalyst/Engine.pm' => 'sub', - 'Class/MakeMethods.pm' => 'sub', - 'Config/Any.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/Class.pm' => 'sub', - '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 - ) ], - 'Email/Send.pm' => 'sub', - '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 - ) ], - 'Image/Info.pm' => sub { - return( _glob_in_inc("Image/Info", 1), qw( - Image/TIFF.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 )], - 'Log/Log4perl.pm' => 'sub', - 'LWP/UserAgent.pm' => sub { - return( - qw( - URI/URL.pm URI/http.pm LWP/Protocol/http.pm - ), - _glob_in_inc("LWP/Authen", 1), - _glob_in_inc("LWP/Protocol", 1), - ); - }, - 'LWP/Parallel.pm' => sub { - _glob_in_inc( 'LWP/Parallel', 1 ), - qw( - LWP/ParallelUA.pm LWP/UserAgent.pm - LWP/RobotPUA.pm LWP/RobotUA.pm - ), - }, - 'LWP/Parallel/UserAgent.pm' => sub { - qw( LWP/Parallel.pm ), - @{ _get_preload('LWP/Parallel.pm') } - }, - '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', - 'Math/Symbolic.pm' => 'sub', - 'Module/Build.pm' => 'sub', - 'Module/Pluggable.pm' => sub { - _glob_in_inc('$CurrentPackage/Plugin', 1); - }, - 'MIME/Decoder.pm' => 'sub', - 'Net/DNS/RR.pm' => 'sub', - 'Net/FTP.pm' => 'sub', - 'Net/SSH/Perl.pm' => 'sub', - 'PDF/API2/Resource/Font.pm' => 'sub', - 'PDF/API2/Basic/TTF/Font.pm' => sub { - _glob_in_inc('PDF/API2/Basic/TTF', 1); - }, - 'PDF/Writer.pm' => 'sub', - 'POE.pm' => [ qw( - POE/Kernel.pm POE/Session.pm - ) ], - 'POE/Kernel.pm' => sub { - _glob_in_inc('POE/XS/Resource', 1), - _glob_in_inc('POE/Resource', 1), - _glob_in_inc('POE/XS/Loop', 1), - _glob_in_inc('POE/Loop', 1), - }, - 'Parse/AFP.pm' => 'sub', - 'Parse/Binary.pm' => 'sub', - 'PerlIO.pm' => [ 'PerlIO/scalar.pm' ], - 'Regexp/Common.pm' => 'sub', - 'SerialJunk.pm' => [ qw( - termios.ph asm/termios.ph sys/termiox.ph sys/termios.ph sys/ttycom.ph - ) ], - 'SOAP/Lite.pm' => sub { - (($] >= 5.008 ? ('utf8.pm') : ()), _glob_in_inc('SOAP/Transport', 1)); - }, - 'SQL/Parser.pm' => sub { - _glob_in_inc('SQL/Dialects', 1); - }, - 'SQL/Translator/Schema.pm' => sub { - _glob_in_inc('SQL/Translator', 1); - }, - 'SVK/Command.pm' => sub { - _glob_in_inc('SVK', 1); - }, - 'SVN/Core.pm' => sub { - _glob_in_inc('SVN', 1), - map "auto/SVN/$_->{name}", _glob_in_inc('auto/SVN'), - }, - 'Template.pm' => 'sub', - 'Term/ReadLine.pm' => 'sub', - 'Test/Deep.pm' => 'sub', - 'Tk.pm' => sub { - $SeenTk = 1; - qw( Tk/FileSelect.pm Encode/Unicode.pm ); - }, - 'Tk/Balloon.pm' => [qw( Tk/balArrow.xbm )], - 'Tk/BrowseEntry.pm' => [qw( Tk/cbxarrow.xbm Tk/arrowdownwin.xbm )], - 'Tk/ColorEditor.pm' => [qw( Tk/ColorEdit.xpm )], - 'Tk/DragDrop/Common.pm' => sub { - _glob_in_inc('Tk/DragDrop', 1), - }, - 'Tk/FBox.pm' => [qw( Tk/folder.xpm Tk/file.xpm )], - 'Tk/Getopt.pm' => [qw( Tk/openfolder.xpm Tk/win.xbm )], - 'Tk/Toplevel.pm' => [qw( Tk/Wm.pm )], - 'URI.pm' => sub { - grep !/.\b[_A-Z]/, _glob_in_inc('URI', 1); - }, - 'Win32/EventLog.pm' => [qw( Win32/IPC.pm )], - 'Win32/Exe.pm' => 'sub', - 'Win32/TieRegistry.pm' => [qw( Win32API/Registry.pm )], - 'Win32/SystemInfo.pm' => [qw( Win32/cpuspd.dll )], - 'XML/Parser.pm' => sub { - _glob_in_inc('XML/Parser/Style', 1), - _glob_in_inc('XML/Parser/Encodings', 1), - }, - 'XML/Parser/Expat.pm' => sub { - ($] >= 5.008) ? ('utf8.pm') : (); - }, - 'XML/SAX.pm' => [qw( XML/SAX/ParserDetails.ini ) ], - 'XMLRPC/Lite.pm' => sub { - _glob_in_inc('XMLRPC/Transport', 1),; - }, - 'YAML.pm' => [qw( YAML/Loader.pm YAML/Dumper.pm )], - 'diagnostics.pm' => sub { - # shamelessly taken and adapted from diagnostics.pm - use Config; - my($privlib, $archlib) = @Config{qw(privlibexp archlibexp)}; - if ($^O eq 'VMS') { - require VMS::Filespec; - $privlib = VMS::Filespec::unixify($privlib); - $archlib = VMS::Filespec::unixify($archlib); - } - - for ( - "pod/perldiag.pod", - "Pod/perldiag.pod", - "pod/perldiag-$Config{version}.pod", - "Pod/perldiag-$Config{version}.pod", - "pods/perldiag.pod", - "pods/perldiag-$Config{version}.pod", - ) { - return $_ if _find_in_inc($_); - } - - for ( - "$archlib/pods/perldiag.pod", - "$privlib/pods/perldiag-$Config{version}.pod", - "$privlib/pods/perldiag.pod", - ) { - return $_ if -f $_; - } - - return 'pod/perldiag.pod'; - }, - 'threads/shared.pm' => [qw( attributes.pm )], - # anybody using threads::shared is likely to declare variables - # with attribute :shared - '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' - ], -); - -# }}} - -sub path_to_inc_name($$) { - my $path = shift; - my $warn = shift; - my $inc_name; - - if ($path =~ m/\.pm$/io) { - die "$path doesn't exist" unless (-f $path); - my $module_info = Module::Build::ModuleInfo->new_from_file($path); - die "Module::Build::ModuleInfo error: $!" unless defined($module_info); - $inc_name = $module_info->name(); - if (defined($inc_name)) { - $inc_name =~ s|\:\:|\/|og; - $inc_name .= '.pm'; - } else { - warn "# Couldn't find include name for $path\n" if $warn; - } - } else { - # Bad solution! - (my $vol, my $dir, $inc_name) = File::Spec->splitpath($path); - } - - return $inc_name; -} - -my $Keys = 'files|keys|recurse|rv|skip|first|execute|compile|warn_missing'; -sub scan_deps { - my %args = ( - rv => {}, - (@_ and $_[0] =~ /^(?:$Keys)$/o) ? @_ : (files => [@_], recurse => 1) - ); - - if (!defined($args{keys})) { - $args{keys} = [map {path_to_inc_name($_, $args{warn_missing})} @{$args{files}}]; - } - - my ($type, $path); - foreach my $input_file (@{$args{files}}) { - if ($input_file !~ $ScanFileRE) { - warn "Skipping input file $input_file because it matches \$Module::ScanDeps::ScanFileRE\n" if $args{warn_missing}; - next; - } - - $type = 'module'; - $type = 'data' unless $input_file =~ /\.p[mh]$/io; - $path = $input_file; - if ($type eq 'module') { - # necessary because add_deps does the search for shared libraries and such - add_deps( - used_by => undef, - rv => $args{rv}, - modules => [path_to_inc_name($path, $args{warn_missing})], - skip => undef, - warn_missing => $args{warn_missing}, - ); - } - else { - _add_info( - rv => $args{rv}, - module => path_to_inc_name($path, $args{warn_missing}), - file => $path, - used_by => undef, - type => $type, - ); - } - } - - scan_deps_static(\%args); - - if ($args{execute} or $args{compile}) { - scan_deps_runtime( - rv => $args{rv}, - files => $args{files}, - execute => $args{execute}, - compile => $args{compile}, - skip => $args{skip} - ); - } - - # do not include the input files themselves as dependencies! - delete $args{rv}{$_} foreach @{$args{files}}; - - return ($args{rv}); -} - -sub scan_deps_static { - my ($args) = @_; - my ($files, $keys, $recurse, $rv, $skip, $first, $execute, $compile, $_skip) = - @$args{qw( files keys recurse rv skip first execute compile _skip )}; - - $rv ||= {}; - $_skip ||= { %{$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)}++; - next unless $file =~ $ScanFileRE; - - 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__'; - - # Skip Tk hits from Term::ReadLine and Tcl::Tk - my $pathsep = qr/\/|\\|::/; - if ($pm =~ /^Tk\b/) { - next if $file =~ /(?:^|${pathsep})Term${pathsep}ReadLine\.pm$/; - next if $file =~ /(?:^|${pathsep})Tcl${pathsep}Tk\W/; - } - - if ($pm eq '__POD__') { - while (<FH>) { last if (/^=cut/) } - next LINE; - } - - $pm = 'CGI/Apache.pm' if $file =~ /^Apache(?:\.pm)$/; - - add_deps( - used_by => $key, - rv => $args->{rv}, - modules => [$pm], - skip => $args->{skip}, - warn_missing => $args->{warn_missing}, - ); - - my $preload = _get_preload($pm) or next; - - add_deps( - used_by => $key, - rv => $args->{rv}, - modules => $preload, - skip => $args->{skip}, - warn_missing => $args->{warn_missing}, - ); - } - } - close FH; - - # }}} - } - - # Top-level recursion handling {{{ - while ($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, - _skip => $_skip, - }) or ($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) { - next unless $file =~ $ScanFileRE; - - ($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; - } - - # XXX only retains data from last execute ... Why? I suspect - # the above loop was added later. Needs test cases --Eric - 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; - } - # use VERSION: - if (/^\s*(?:use|require)\s+([\d\._]+)/) { - # include feaure.pm if we have 5.9.5 or better - if (version->new($1) >= version->new("5.9.5")) { # seems to catch 5.9, too (but not 5.9.4) - return "feature.pm"; - } - } - - if (my ($autouse) = /^\s*use\s+autouse\s+(["'].*?["']|\w+)/) - { - $autouse =~ s/["']//g; - $autouse =~ s{::}{/}g; - return ("autouse.pm", "$autouse.pm"); - } - - 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:]+/, $1) ] - if /^\s* use \s+ base \s+ (.*)/sx; - - return [ 'prefork.pm', - map { s{::}{/}g; "$_.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:\.\-\\\/\"\']*)/; - } - - if (/(<[^>]*[^\$\w>][^>]*>)/) { - my $diamond = $1; - return "File/Glob.pm" if $diamond =~ /[*?\[\]{}~\\]/; - } - 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' and $1 ne 'shift'; - return $1 if /\b(\w[\w:]*)::\w+\(/ and $1 ne 'main' and $1 ne 'SUPER'; - - if ($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 %args = @_; - my ($rv, $module, $file, $used_by, $type) = @args{qw/rv module file used_by type/}; - - return unless defined($module) and defined($file); - - # Ensure file is always absolute - $file = File::Spec->rel2abs($file); - $file =~ s|\\|\/|go; - - # Avoid duplicates that can arise due to case differences that don't actually - # matter on a case tolerant system - if (File::Spec->case_tolerant()) { - foreach my $key (keys %$rv) { - if (lc($key) eq lc($module)) { - $module = $key; - last; - } - } - if (defined($used_by)) { - if (lc($used_by) eq lc($module)) { - $used_by = $module; - } else { - foreach my $key (keys %$rv) { - if (lc($key) eq lc($used_by)) { - $used_by = $key; - last; - } - } - } - } - } - - $rv->{$module} ||= { - file => $file, - key => $module, - type => $type, - }; - - if (defined($used_by) and $used_by ne $module) { - push @{ $rv->{$module}{used_by} }, $used_by - if ( (!File::Spec->case_tolerant() && !grep { $_ eq $used_by } @{ $rv->{$module}{used_by} }) - or ( File::Spec->case_tolerant() && !grep { lc($_) eq lc($used_by) } @{ $rv->{$module}{used_by} })); - - # We assume here that another _add_info will be called to provide the other parts of $rv->{$used_by} - push @{ $rv->{$used_by}{uses} }, $module - if ( (!File::Spec->case_tolerant() && !grep { $_ eq $module } @{ $rv->{$used_by}{uses} }) - or ( File::Spec->case_tolerant() && !grep { lc($_) eq lc($module) } @{ $rv->{$used_by}{uses} })); - } -} - -# This subroutine relies on not being called for modules that have already been visited -sub add_deps { - my %args = - ((@_ and $_[0] =~ /^(?:modules|rv|used_by|warn_missing)$/) - ? @_ - : (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} }) { - my $file = _find_in_inc($module) - or _warn_of_missing_module($module, $args{warn_missing}), next; - next if $skip->{$file}; - - if (exists $rv->{$module}) { - _add_info( rv => $rv, module => $module, - file => $file, used_by => $used_by, - type => undef ); - next; - } - - my $type = 'module'; - $type = 'data' unless $file =~ /\.p[mh]$/i; - _add_info( rv => $rv, module => $module, - file => $file, used_by => $used_by, - type => $type ); - - if ($module =~ /(.*?([^\/]*))\.p[mh]$/i) { - my ($path, $basename) = ($1, $2); - - foreach (_glob_in_inc("auto/$path")) { - 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 => $rv, module => "auto/$path/$_->{name}", - file => $_->{file}, used_by => $module, - type => $type ); - } - } - } - - return $rv; -} - -sub _find_in_inc { - my $file = shift; - - foreach my $dir (grep !/\bBSDPAN\b/, @INC, @IncludeLibs) { - return "$dir/$file" if -f "$dir/$file"; - } - - # absolute file names - return $file if -f $file; - - return; -} - -sub _glob_in_inc { - my $subdir = shift; - my $pm_only = shift; - my @files; - - require File::Find; - - $subdir =~ s/\$CurrentPackage/$CurrentPackage/; - - foreach my $dir (map "$_/$subdir", grep !/\bBSDPAN\b/, @INC, @IncludeLibs) { - next unless -d $dir; - File::Find::find( - 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; - }, - $dir - ); - } - - return @files; -} - -# App::Packer compatibility functions - -sub new { - my ($class, $self) = @_; - return bless($self ||= {}, $class); -} - -sub set_file { - my $self = shift; - foreach my $script (@_) { - my ($vol, $dir, $file) = File::Spec->splitpath($script); - $self->{main} = { - key => $file, - 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 _warn_of_missing_module($module, $args{warn_missing}), 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{ $val->{key} }) { - defined($val->{used_by}) or next; - 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, $incarray) = @_; - - my ($fhout, $fname) = File::Temp::tempfile("XXXXXX"); - my $fhin = FileHandle->new($file) or die "Couldn't open $file\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 = $DB::single = 1; - my ($fhout, $fname) = File::Temp::tempfile("XXXXXX"); - $fname = _abs_path($fname); - my $fhin = FileHandle->new($file) or die "Couldn't open $file"; - - 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, (map { "-I$_" } @IncludeLibs), $fname) == 0 or die "SYSTEM ERROR in executing $file: $?"; - - _extract_info("$fname.out", $inchash, $dl_shared_objects, $incarray); - unlink("$fname"); - unlink("$fname.out"); -} - -# create a new hashref, applying fixups -sub _make_rv { - my ($inchash, $dl_shared_objects, $inc_array) = @_; - - my $rv = {}; - my @newinc = map(quotemeta($_), @$inc_array); - my $inc = join('|', sort { length($b) <=> length($a) } @newinc); - # don't pack lib/c:/ or lib/C:/ - $inc = qr/$inc/i if(is_insensitive_fs()); - - 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'; -} - -# merge all keys from $rv_sub into the $rv mega-ref -sub _merge_rv { - my ($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.\n" - . " -> Using '" . _abs_path($rv_sub->{$key}{file}) . "'.\n" - . " -> Ignoring '" . _abs_path($rv->{$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, $rv2) = @_; - if (File::Spec->case_tolerant()) { - return lc(_abs_path($rv1->{$key}{file})) ne lc(_abs_path($rv2->{$key}{file})); - } - else { - return _abs_path($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]), - ); -} - - -sub _warn_of_missing_module { - my $module = shift; - my $warn = shift; - return if not $warn; - return if not $module =~ /\.p[ml]$/; - warn "# Could not find source file '$module' in \@INC or \@IncludeLibs. Skipping it.\n" - if not -f $module; -} - -sub _get_preload { - my $pm = shift; - my $preload = $Preload{$pm} or return(); - if ($preload eq 'sub') { - $pm =~ s/\.p[mh]$//i; - $preload = [ _glob_in_inc($pm, 1) ]; - } - elsif (UNIVERSAL::isa($preload, 'CODE')) { - $preload = [ $preload->($pm) ]; - } - return $preload; -} - -1; -__END__ - -=head1 SEE ALSO - -L<scandeps.pl> is a bundled utility that writes C<PREREQ_PM> section -for a number of files. - -An application of B<Module::ScanDeps> is to generate executables from -scripts that contains prerequisite modules; this module supports two -such projects, L<PAR> and L<App::Packer>. Please see their respective -documentations on CPAN for further information. - -=head1 AUTHORS - -Audrey Tang E<lt>cpan@audreyt.orgE<gt> - -To a lesser degree: Steffen Mueller E<lt>smueller@cpan.orgE<gt> - -Parts of heuristics were deduced from: - -=over 4 - -=item * - -B<PerlApp> by ActiveState Tools Corp L<http://www.activestate.com/> - -=item * - -B<Perl2Exe> by IndigoStar, Inc L<http://www.indigostar.com/> - -=back - -The B<scan_deps_runtime> function is contributed by Edward S. Peschko. - -L<http://par.perl.org/> is the official website for this module. You -can write to the mailing list at E<lt>par@perl.orgE<gt>, or send an empty -mail to E<lt>par-subscribe@perl.orgE<gt> to participate in the discussion. - -Please submit bug reports to E<lt>bug-Module-ScanDeps@rt.cpan.orgE<gt>. - -=head1 COPYRIGHT - -Copyright 2002-2008 by -Audrey Tang E<lt>cpan@audreyt.orgE<gt>; -2005-2008 by Steffen Mueller E<lt>smueller@cpan.orgE<gt>. - -This program is free software; you can redistribute it and/or modify it -under the same terms as Perl itself. - -See L<http://www.perl.com/perl/misc/Artistic.html> - -=cut |