/ 
ExtUtils-InstallPaths-0.003
River stage five • 14 direct dependents • 11546 total dependents
/ ExtUtils::InstallPaths

NAME

ExtUtils::InstallPaths - Build.PL install path logic made easy

VERSION

version 0.003

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 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 in any circumstance.

  • lib

    Usually pure-Perl module files ending in .pm.

  • 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, try 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.

  • libdoc

    Documentation for the stuff in lib and arch. This is usually generated from the POD in .pm files. Under Unix, these are manual pages belonging to the 'man3' category.

  • binhtml

    This is the same as bindoc above, but applies to HTML documents.

  • libhtml

    This is the same as bindoc above, but applies to HTML documents.

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   installsitebin      installvendorbin
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.

verbose

Sets the verbosity of ExtUtils::InstallPaths. It defaults to 0

blib

Sets the location of the blib directory, it defaults to 'blib'.

create_packlist

Controls whether a packlist will be added together with module_name. 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 contructor, as well as this:

  • config

    An ExtUtils::Config object that's used to configure ExtUtils::InstallPaths.

  • 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.

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 [, $value])

Gets or sets the install path for a certain type. Note that this overrides all other options.

install_sets($installdirs, $type [, $path ])

Get or set the path for a certain $type with a certain $installdirs.

install_base_relpaths($type, $relpath)

Get or set the relative paths for use with install_base for a certain type.

prefix_relative($type)

Gets the path of a certain type relative to the prefix.

prefix_relpaths($install_dirs, $type [, $relpath])

Get or set 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.

config($key [, $value ])

Get or set a configuration key. This should be used sparingly.

SEE ALSO

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.