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272 lines
6.9 KiB
272 lines
6.9 KiB
package ExtUtils::Installed;
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use strict;
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use Carp qw();
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use ExtUtils::Packlist;
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use ExtUtils::MakeMaker;
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use Config;
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use File::Find;
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use File::Basename;
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use vars qw($VERSION);
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$VERSION = '0.02';
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sub _is_type($$$)
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{
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my ($self, $path, $type) = @_;
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return(1) if ($type eq "all");
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if ($type eq "doc")
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{
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return(substr($path, 0, length($Config{installman1dir}))
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eq $Config{installman1dir}
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||
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substr($path, 0, length($Config{installman3dir}))
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eq $Config{installman3dir}
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? 1 : 0)
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}
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if ($type eq "prog")
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{
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return(substr($path, 0, length($Config{prefix})) eq $Config{prefix}
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&&
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substr($path, 0, length($Config{installman1dir}))
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ne $Config{installman1dir}
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&&
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substr($path, 0, length($Config{installman3dir}))
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ne $Config{installman3dir}
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? 1 : 0);
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}
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return(0);
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}
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sub _is_under($$;)
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{
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my ($self, $path, @under) = @_;
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$under[0] = "" if (! @under);
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foreach my $dir (@under)
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{
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return(1) if (substr($path, 0, length($dir)) eq $dir);
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}
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return(0);
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}
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sub new($)
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{
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my ($class) = @_;
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$class = ref($class) || $class;
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my $self = {};
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# Read the core packlist
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$self->{Perl}{packlist} =
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ExtUtils::Packlist->new("$Config{installarchlib}/.packlist");
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$self->{Perl}{version} = $];
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# Read the module packlists
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my $sub = sub
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{
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# Only process module .packlists
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return if ($_) ne ".packlist" || $File::Find::dir eq $Config{installarchlib};
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# Hack of the leading bits of the paths & convert to a module name
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my $module = $File::Find::name;
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$module =~ s!$Config{archlib}/auto/(.*)/.packlist!$1!;
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$module =~ s!$Config{sitearch}/auto/(.*)/.packlist!$1!;
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my $modfile = "$module.pm";
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$module =~ s!/!::!g;
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# Find the top-level module file in @INC
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$self->{$module}{version} = '';
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foreach my $dir (@INC)
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{
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my $p = MM->catfile($dir, $modfile);
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if (-f $p)
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{
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$self->{$module}{version} = MM->parse_version($p);
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last;
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}
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}
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# Read the .packlist
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$self->{$module}{packlist} = ExtUtils::Packlist->new($File::Find::name);
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};
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find($sub, $Config{archlib}, $Config{sitearch});
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return(bless($self, $class));
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}
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sub modules($)
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{
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my ($self) = @_;
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return(sort(keys(%$self)));
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}
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sub files($$;$)
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{
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my ($self, $module, $type, @under) = @_;
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# Validate arguments
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Carp::croak("$module is not installed") if (! exists($self->{$module}));
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$type = "all" if (! defined($type));
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Carp::croak('type must be "all", "prog" or "doc"')
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if ($type ne "all" && $type ne "prog" && $type ne "doc");
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my (@files);
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foreach my $file (keys(%{$self->{$module}{packlist}}))
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{
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push(@files, $file)
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if ($self->_is_type($file, $type) && $self->_is_under($file, @under));
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}
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return(@files);
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}
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sub directories($$;$)
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{
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my ($self, $module, $type, @under) = @_;
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my (%dirs);
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foreach my $file ($self->files($module, $type, @under))
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{
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$dirs{dirname($file)}++;
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}
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return(sort(keys(%dirs)));
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}
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sub directory_tree($$;$)
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{
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my ($self, $module, $type, @under) = @_;
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my (%dirs);
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foreach my $dir ($self->directories($module, $type, @under))
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{
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$dirs{$dir}++;
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my ($last) = ("");
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while ($last ne $dir)
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{
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$last = $dir;
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$dir = dirname($dir);
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last if (! $self->_is_under($dir, @under));
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$dirs{$dir}++;
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}
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}
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return(sort(keys(%dirs)));
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}
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sub validate($;$)
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{
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my ($self, $module, $remove) = @_;
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Carp::croak("$module is not installed") if (! exists($self->{$module}));
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return($self->{$module}{packlist}->validate($remove));
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}
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sub packlist($$)
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{
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my ($self, $module) = @_;
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Carp::croak("$module is not installed") if (! exists($self->{$module}));
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return($self->{$module}{packlist});
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}
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sub version($$)
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{
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my ($self, $module) = @_;
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Carp::croak("$module is not installed") if (! exists($self->{$module}));
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return($self->{$module}{version});
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}
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sub DESTROY
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{
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}
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1;
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__END__
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=head1 NAME
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ExtUtils::Installed - Inventory management of installed modules
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=head1 SYNOPSIS
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use ExtUtils::Installed;
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my ($inst) = ExtUtils::Installed->new();
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my (@modules) = $inst->modules();
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my (@missing) = $inst->validate("DBI");
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my $all_files = $inst->files("DBI");
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my $files_below_usr_local = $inst->files("DBI", "all", "/usr/local");
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my $all_dirs = $inst->directories("DBI");
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my $dirs_below_usr_local = $inst->directory_tree("DBI", "prog");
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my $packlist = $inst->packlist("DBI");
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=head1 DESCRIPTION
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ExtUtils::Installed provides a standard way to find out what core and module
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files have been installed. It uses the information stored in .packlist files
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created during installation to provide this information. In addition it
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provides facilities to classify the installed files and to extract directory
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information from the .packlist files.
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=head1 USAGE
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The new() function searches for all the installed .packlists on the system, and
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stores their contents. The .packlists can be queried with the functions
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described below.
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=head1 FUNCTIONS
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=over
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=item new()
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This takes no parameters, and searches for all the installed .packlists on the
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system. The packlists are read using the ExtUtils::packlist module.
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=item modules()
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This returns a list of the names of all the installed modules. The perl 'core'
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is given the special name 'Perl'.
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=item files()
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This takes one mandatory parameter, the name of a module. It returns a list of
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all the filenames from the package. To obtain a list of core perl files, use
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the module name 'Perl'. Additional parameters are allowed. The first is one
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of the strings "prog", "man" or "all", to select either just program files,
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just manual files or all files. The remaining parameters are a list of
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directories. The filenames returned will be restricted to those under the
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specified directories.
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=item directories()
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This takes one mandatory parameter, the name of a module. It returns a list of
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all the directories from the package. Additional parameters are allowed. The
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first is one of the strings "prog", "man" or "all", to select either just
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program directories, just manual directories or all directories. The remaining
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parameters are a list of directories. The directories returned will be
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restricted to those under the specified directories. This method returns only
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the leaf directories that contain files from the specified module.
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=item directory_tree()
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This is identical in operation to directory(), except that it includes all the
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intermediate directories back up to the specified directories.
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=item validate()
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This takes one mandatory parameter, the name of a module. It checks that all
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the files listed in the modules .packlist actually exist, and returns a list of
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any missing files. If an optional second argument which evaluates to true is
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given any missing files will be removed from the .packlist
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=item packlist()
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This returns the ExtUtils::Packlist object for the specified module.
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=item version()
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This returns the version number for the specified module.
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=back
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=head1 EXAMPLE
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See the example in L<ExtUtils::Packlist>.
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=head1 AUTHOR
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Alan Burlison <[email protected]>
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=cut
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