Provided by: libextutils-installpaths-perl_0.011-1_all 
NAME
ExtUtils::InstallPaths - Build.PL install path logic made easy
VERSION
version 0.011
SYNOPSIS
use ExtUtils::InstallPaths;
use ExtUtils::Install 'install';
GetOptions(\my %opt, 'install_base=s', 'install_path=s%', 'installdirs=s', 'destdir=s', 'prefix=s', 'uninst:1', 'verbose:1');
my $paths = ExtUtils::InstallPaths->new(%opt, dist_name => $dist_name);
install($paths->install_map, $opt{verbose}, 0, $opt{uninst});
DESCRIPTION
This module tries to make install path resolution as easy as possible.
When you want to install a module, it needs to figure out where to install things. The nutshell version
of how this works is that default installation locations are determined from ExtUtils::Config, and they
may be individually overridden by using the "install_path" attribute. An "install_base" attribute lets
you specify an alternative installation root like /home/foo and "prefix" does something similar in a
rather different (and more complicated) way. "destdir" lets you specify a temporary installation
directory like /tmp/install in case you want to create bundled-up installable packages.
The following types are supported by default.
• lib
Usually pure-Perl module files ending in .pm or .pod.
• arch
"Architecture-dependent" module files, usually produced by compiling XS, Inline, or similar code.
• script
Programs written in pure Perl. In order to improve reuse, you may want to make these as small as
possible - put the code into modules whenever possible.
• bin
"Architecture-dependent" executable programs, i.e. compiled C code or something. Pretty rare to see
this in a perl distribution, but it happens.
• bindoc
Documentation for the stuff in "script" and "bin". Usually generated from the POD in those files.
Under Unix, these are manual pages belonging to the 'man1' category. Unless explicitly set, this is
only available on platforms supporting manpages.
• libdoc
Documentation for the stuff in "lib" and "arch". This is usually generated from the POD in .pm and
.pod files. Under Unix, these are manual pages belonging to the 'man3' category. Unless explicitly
set, this is only available on platforms supporting manpages.
• binhtml
This is the same as "bindoc" above, but applies to HTML documents. Unless explicitly set, this is
only available when perl was configured to do so.
• libhtml
This is the same as "libdoc" above, but applies to HTML documents. Unless explicitly set, this is
only available when perl was configured to do so.
ATTRIBUTES
installdirs
The default destinations for these installable things come from entries in your system's configuration.
You can select from three different sets of default locations by setting the "installdirs" parameter as
follows:
'installdirs' set to:
core site vendor
uses the following defaults from ExtUtils::Config:
lib => installprivlib installsitelib installvendorlib
arch => installarchlib installsitearch installvendorarch
script => installscript installsitescript installvendorscript
bin => installbin installsitebin installvendorbin
bindoc => installman1dir installsiteman1dir installvendorman1dir
libdoc => installman3dir installsiteman3dir installvendorman3dir
binhtml => installhtml1dir installsitehtml1dir installvendorhtml1dir [*]
libhtml => installhtml3dir installsitehtml3dir installvendorhtml3dir [*]
* Under some OS (eg. MSWin32) the destination for HTML documents is determined by the C<Config.pm> entry C<installhtmldir>.
The default value of "installdirs" is "site".
install_base
You can also set the whole bunch of installation paths by supplying the "install_base" parameter to point
to a directory on your system. For instance, if you set "install_base" to "/home/ken" on a Linux system,
you'll install as follows:
lib => /home/ken/lib/perl5
arch => /home/ken/lib/perl5/i386-linux
script => /home/ken/bin
bin => /home/ken/bin
bindoc => /home/ken/man/man1
libdoc => /home/ken/man/man3
binhtml => /home/ken/html
libhtml => /home/ken/html
prefix
This sets a prefix, identical to ExtUtils::MakeMaker's PREFIX option. This does something similar to
"install_base" in a much more complicated way.
config()
The ExtUtils::Config object used for this object.
verbose
The verbosity of ExtUtils::InstallPaths. It defaults to 0
blib
The location of the blib directory, it defaults to 'blib'.
create_packlist
Together with "module_name" this controls whether a packlist will be added; it defaults to 1.
dist_name
The name of the current module.
module_name
The name of the main module of the package. This is required for packlist creation, but in the future it
may be replaced by dist_name. It defaults to "dist_name =~ s/-/::/gr" if dist_name is set.
destdir
If you want to install everything into a temporary directory first (for instance, if you want to create a
directory tree that a package manager like "rpm" or "dpkg" could create a package from), you can use the
"destdir" parameter. E.g. Setting "destdir" to "/tmp/foo" will effectively install to
"/tmp/foo/$sitelib", "/tmp/foo/$sitearch", and the like, except that it will use "File::Spec" to make the
pathnames work correctly on whatever platform you're installing on.
METHODS
new
Create a new ExtUtils::InstallPaths object. All attributes are valid arguments to the constructor, as
well as this:
• install_path
This must be a hashref with the type as keys and the destination as values.
• install_base_relpaths
This must be a hashref with types as keys and a path relative to the install_base as value.
• prefix_relpaths
This must be a hashref any of these three keys: core, vendor, site. Each of the values mush be a
hashref with types as keys and a path relative to the prefix as value. You probably want to make
these three hashrefs identical.
• original_prefix
This must be a hashref with the legal installdirs values as keys and the prefix directories as
values.
• install_sets
This mush be a hashref with the legal installdirs are keys, and the values being hashrefs with types
as keys and locations as values.
install_map()
Return a map suitable for use with ExtUtils::Install. In most cases, this is the only method you'll need.
install_destination($type)
Returns the destination of a certain type.
install_types()
Return a list of all supported install types in the current configuration.
is_default_installable($type)
Given a file type, will return true if the file type would normally be installed when neither install-
base nor prefix has been set. I.e. it will be true only if the path is set from the configuration object
or set explicitly by the user via install_path.
install_path($type)
Gets the install path for a certain type.
install_sets($installdirs, $type)
Get the path for a certain $type with a certain $installdirs.
install_base_relpaths($type, $relpath)
Get the relative paths for use with install_base for a certain type.
prefix_relative($installdirs, $type)
Gets the path of a certain $type and $installdirs relative to the prefix.
prefix_relpaths($install_dirs, $type)
Get the default relative path to use in case the config install paths cannot be prefixified. You do not
want to use this to get any relative path, but may require it to set it for custom types.
original_prefix($installdirs)
Get the original prefix for a certain type of $installdirs.
SEE ALSO
• Build.PL spec <http://github.com/dagolden/cpan-api-buildpl/blob/master/lib/CPAN/API/BuildPL.pm>
AUTHORS
• Ken Williams <kwilliams@cpan.org>
• Leon Timmermans <leont@cpan.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2011 by Ken Williams, Leon Timmermans.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5
programming language system itself.