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NAME

     ExtUtils::Installed - Inventory management of installed
     modules



SYNOPSIS
        use ExtUtils::Installed;
        my ($inst) = ExtUtils::Installed->new();
        my (@modules) = $inst->modules();
        my (@missing) = $inst->validate("DBI");
        my $all_files = $inst->files("DBI");
        my $files_below_usr_local = $inst->files("DBI", "all", "/usr/local");
        my $all_dirs = $inst->directories("DBI");
        my $dirs_below_usr_local = $inst->directory_tree("DBI", "prog");
        my $packlist = $inst->packlist("DBI");




DESCRIPTION
     ExtUtils::Installed  provides a standard way to find out
     what core and module files have been installed.  It uses the
     information stored in .packlist files created during
     installation to provide this information.  In addition it
     provides facilities to classify the installed files and to
     extract directory information from the .packlist files.



USAGE
     The new() function searches for all the installed .packlists
     on the system, and stores their contents. The .packlists can
     be queried with the functions described below.



FUNCTIONS
     new()
          This takes no parameters, and searches for all the
          installed .packlists on the system.  The packlists are
          read using the ExtUtils::packlist module.

     modules()
          This returns a list of the names of all the installed
          modules.  The perl 'core' is given the special name
          'Perl'.

     files()
          This takes one mandatory parameter, the name of a
          module.  It returns a list of all the filenames from
          the package.  To obtain a list of core perl files, use
          the module name 'Perl'.  Additional parameters are
          allowed.  The first is one of the strings "prog", "man"
          or "all", to select either just program files, just
          manual files or all files.  The remaining parameters
          are a list of directories. The filenames returned will
          be restricted to those under the specified directories.


     directories()
          This takes one mandatory parameter, the name of a
          module.  It returns a list of all the directories from
          the package.  Additional parameters are allowed.  The
          first is one of the strings "prog", "man" or "all", to
          select either just program directories, just manual
          directories or all directories.  The remaining
          parameters are a list of directories. The directories
          returned will be restricted to those under the
          specified directories.  This method returns only the
          leaf directories that contain files from the specified
          module.

     directory_tree()
          This is identical in operation to directory(), except
          that it includes all the intermediate directories back
          up to the specified directories.

     validate()
          This takes one mandatory parameter, the name of a
          module.  It checks that all the files listed in the
          modules .packlist actually exist, and returns a list of
          any missing files.  If an optional second argument
          which evaluates to true is given any missing files will
          be removed from the .packlist

     packlist()
          This returns the ExtUtils::Packlist object for the
          specified module.

     version()
          This returns the version number for the specified
          module.



EXAMPLE
     See the example in the ExtUtils::Packlist manpage.



AUTHOR
     Alan Burlison <Alan.Burlison@uk.sun.com>









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