| | man : CPANPLUS::Dist::Base(3p)
CPANPLUS::Dist::BPerl3Programmers ReferenCPANPLUS::Dist::Base(3p)
NAME
CPANPLUS::Dist::Base - Base class for custom distribution
classes
SYNOPSIS
package CPANPLUS::Dist::MY_IMPLEMENTATION
use base 'CPANPLUS::Dist::Base';
sub prepare {
my $dist = shift;
### do the 'standard' things
$dist->SUPER::prepare( @_ ) or return;
### do MY_IMPLEMENTATION specific things
...
### don't forget to set the status!
return $dist->status->prepared( $SUCCESS ? 1 : 0 );
}
DESCRIPTION
CPANPLUS::Dist::Base functions as a base class for all
custom distribution implementations. It does all the
mundane work CPANPLUS would have done without a custom
distribution, so you can override just the parts you need
to make your own implementation work.
FLOW
Below is a brief outline when and in which order methods
in this class are called:
$Class->format_available; # can we use this class on this system?
$dist->init; # set up custom accessors, etc
$dist->prepare; # find/write meta information
$dist->create; # write the distribution file
$dist->install; # install the distribution file
$dist->uninstall; # remove the distribution (OPTIONAL)
METHODS
$bool = $Class->format_available
This method is called when someone requests a module to be
installed via the superclass. This gives you the
opportunity to check if all the needed requirements to
build and install this distribution have been met.
For example, you might need a command line program, or a
certain perl module installed to do your job. Now is the
time to check.
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Simply return true if the request can proceed and false if
it can not.
The "CPANPLUS::Dist::Base" implementation always returns
true.
$bool = $dist->init
This method is called just after the new dist object is
set up and before the "prepare" method is called. This is
the time to set up the object so it can be used with your
class.
For example, you might want to add extra accessors to the
"status" object, which you might do as follows:
$dist->status->mk_accessors( qw[my_implementation_accessor] );
The "status" object is implemented as an instance of the
"Object::Accessor" class. Please refer to it's
documentation for details.
Return true if the initialization was successul, and false
if it was not.
The "CPANPLUS::Dist::Base" implementation does not alter
your object and always returns true.
$bool = $dist->prepare
This runs the preparation step of your distribution. This
step is meant to set up the environment so the "create"
step can create the actual distribution(file). A
"prepare" call in the standard "ExtUtils::MakeMaker"
distribution would, for example, run "perl Makefile.PL" to
find the dependencies for a distribution. For a "debian"
distribution, this is where you would write all the
metafiles required for the "dpkg-*" tools.
The "CPANPLUS::Dist::Base" implementation simply calls the
underlying distribution class (Typically
"CPANPLUS::Dist::MM" or "CPANPLUS::Dist::Build").
Sets "$dist->status->prepared" to the return value of this
function. If you override this method, you should make
sure to set this value.
$bool = $dist->create
This runs the creation step of your distribution. This
step is meant to follow up on the "prepare" call, that set
up your environment so the "create" step can create the
actual distribution(file). A "create" call in the
standard "ExtUtils::MakeMaker" distribution would, for
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example, run "make" and "make test" to build and test a
distribution. For a "debian" distribution, this is where
you would create the actual ".deb" file using "dpkg".
The "CPANPLUS::Dist::Base" implementation simply calls the
underlying distribution class (Typically
"CPANPLUS::Dist::MM" or "CPANPLUS::Dist::Build").
Sets "$dist->status->dist" to the location of the created
distribution. If you override this method, you should
make sure to set this value.
Sets "$dist->status->created" to the return value of this
function. If you override this method, you should make
sure to set this value.
$bool = $dist->install
This runs the install step of your distribution. This step
is meant to follow up on the "create" call, which prepared
a distribution(file) to install. A "create" call in the
standard "ExtUtils::MakeMaker" distribution would, for
example, run "make install" to copy the distribution files
to their final destination. For a "debian" distribution,
this is where you would run "dpkg --install" on the
created ".deb" file.
The "CPANPLUS::Dist::Base" implementation simply calls the
underlying distribution class (Typically
"CPANPLUS::Dist::MM" or "CPANPLUS::Dist::Build").
Sets "$dist->status->installed" to the return value of
this function. If you override this method, you should
make sure to set this value.
$bool = $dist->uninstall
This runs the uninstall step of your distribution. This
step is meant to remove the distribution from the file
system. A "uninstall" call in the standard
"ExtUtils::MakeMaker" distribution would, for example, run
"make uninstall" to remove the distribution files the file
system. For a "debian" distribution, this is where you
would run "dpkg --uninstall PACKAGE".
The "CPANPLUS::Dist::Base" implementation simply calls the
underlying distribution class (Typically
"CPANPLUS::Dist::MM" or "CPANPLUS::Dist::Build").
Sets "$dist->status->uninstalled" to the return value of
this function. If you override this method, you should
make sure to set this value.
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