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.\" ========================================================================
.\"
.IX Title "ExtUtils::Installed 3"
.TH ExtUtils::Installed 3 "2001-09-21" "perl v5.8.8" "Perl Programmers Reference Guide"
.SH "NAME"
ExtUtils::Installed \- Inventory management of installed modules
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 9
\&   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");
.Ve
.SH "DESCRIPTION"
.IX Header "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.
.SH "USAGE"
.IX Header "USAGE"
The \fInew()\fR function searches for all the installed .packlists on the system, and
stores their contents. The .packlists can be queried with the functions
described below.
.SH "FUNCTIONS"
.IX Header "FUNCTIONS"
.IP "\fInew()\fR" 4
.IX Item "new()"
This takes no parameters, and searches for all the installed .packlists on the
system.  The packlists are read using the ExtUtils::packlist module.
.IP "\fImodules()\fR" 4
.IX Item "modules()"
This returns a list of the names of all the installed modules.  The perl 'core'
is given the special name 'Perl'.
.IP "\fIfiles()\fR" 4
.IX Item "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 \*(L"prog\*(R", \*(L"doc\*(R" or \*(L"all\*(R", 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.
.IP "\fIdirectories()\fR" 4
.IX Item "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 \*(L"prog\*(R", \*(L"doc\*(R" or \*(L"all\*(R", 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.
.IP "\fIdirectory_tree()\fR" 4
.IX Item "directory_tree()"
This is identical in operation to \fIdirectories()\fR, except that it includes all the
intermediate directories back up to the specified directories.
.IP "\fIvalidate()\fR" 4
.IX Item "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
.IP "\fIpacklist()\fR" 4
.IX Item "packlist()"
This returns the ExtUtils::Packlist object for the specified module.
.IP "\fIversion()\fR" 4
.IX Item "version()"
This returns the version number for the specified module.
.SH "EXAMPLE"
.IX Header "EXAMPLE"
See the example in ExtUtils::Packlist.
.SH "AUTHOR"
.IX Header "AUTHOR"
Alan Burlison <Alan.Burlison@uk.sun.com>
Creat By MiNi SheLL
Email: devilkiller@gmail.com