# vim: ts=4 sts=4 sw=4:
use strict;
package CPAN;
-$CPAN::VERSION = '2.03';
+$CPAN::VERSION = '2.09';
$CPAN::VERSION =~ s/_//;
# we need to run chdir all over and we would get at wrong libraries
#-> sub CPAN::fastcwd ;
sub fastcwd {Cwd::fastcwd();}
+#-> sub CPAN::getdcwd ;
+sub getdcwd {Cwd::getdcwd();}
+
#-> sub CPAN::backtickcwd ;
sub backtickcwd {my $cwd = `cwd`; chomp $cwd; $cwd}
},
],
+ 'CPAN::Meta::Requirements' => [
+ sub {
+ require CPAN::Meta::Requirements;
+ unless (CPAN::Version->vge(CPAN::Meta::Requirements->VERSION, 2.120920)) {
+ for ("Will not use CPAN::Meta::Requirements, need version 2.120920\n") {
+ $CPAN::Frontend->mywarn($_);
+ die $_;
+ }
+ }
+ },
+ ],
+
LWP => [ # we frequently had "Can't locate object
# method "new" via package "LWP::UserAgent" at
# (eval 69) line 2006
return $HAS_USABLE->{$mod} = 1;
}
+sub frontend {
+ shift;
+ $CPAN::Frontend = shift if @_;
+ $CPAN::Frontend;
+}
+
+sub use_inst {
+ my ($self, $module) = @_;
+
+ unless ($self->has_inst($module)) {
+ $self->frontend->mydie("$module not installed, cannot continue");
+ }
+}
+
#-> sub CPAN::has_inst
sub has_inst {
my($self,$mod,$message) = @_;
=item C<ls> globbing_expression
The first form lists all distribution files in and below an author's
-CPAN directory as stored in the CHECKUMS files distributed on
+CPAN directory as stored in the CHECKSUMS files distributed on
CPAN. The listing recurses into subdirectories.
The second form limits or expands the output with shell
Modules know their associated Distribution objects. They always refer
to the most recent official release. Developers may mark their releases
-as unstable development versions (by inserting an unserscore into the
+as unstable development versions (by inserting an underscore into the
module version number which will also be reflected in the distribution
name when you run 'make dist'), so the really hottest and newest
distribution is not always the default. If a module Foo circulates
pager or redirecting output into a file works somewhat as in a normal
shell, with the stipulation that you must type extra spaces.
+=head2 Plugin support ***EXPERIMENTAL***
+
+Plugins are objects that implement any of currently eight methods:
+
+ pre_get
+ post_get
+ pre_make
+ post_make
+ pre_test
+ post_test
+ pre_install
+ post_install
+
+The C<plugin_list> configuration parameter holds a list of strings of
+the form
+
+ Modulename=arg0,arg1,arg2,arg3,...
+
+At run time, each listed plugin is instantiated as a singleton object
+by running the equivalent of this pseudo code:
+
+ my $plugin = <string representation from config>;
+ <generate Modulename and arguments from $plugin>;
+ my $p = $instance{$plugin} ||= Modulename->new($arg0,$arg1,...);
+
+The generated singletons are kept around from instantiation until the
+end of the shell session. <plugin_list> can be reconfigured at any
+time at run time. While the cpan shell is running, it checks all
+activated plugins at each of the 8 reference points listed above and
+runs the respective method if it is implemented for that object. The
+method is called with the active CPAN::Distribution object passed in
+as an argument.
+
=head1 CONFIGURATION
When the CPAN module is used for the first time, a configuration
patch path to external prg
patches_dir local directory containing patch files
perl5lib_verbosity verbosity level for PERL5LIB additions
+ plugin_list list of active hooks (see Plugin support above
+ and the CPAN::Plugin module)
prefer_external_tar
per default all untar operations are done with
Archive::Tar; by setting this variable to true
CPAN::Reporter history)
unzip location of external program unzip
urllist arrayref to nearby CPAN sites (or equivalent locations)
+ use_prompt_default set PERL_MM_USE_DEFAULT for configure/make/test/install
use_sqlite use CPAN::SQLite for metadata storage (fast and lean)
username your username if you CPAN server wants one
version_timeout stops version parsing after this many seconds.
Calls Cwd::fastcwd
+=item getdcwd
+
+Calls Cwd::getdcwd
+
=item backtickcwd
Calls the external command cwd.
=head2 Configuration for individual distributions (I<Distroprefs>)
-(B<Note:> This feature has been introduced in CPAN.pm 1.8854 and is
-still considered beta quality)
+(B<Note:> This feature has been introduced in CPAN.pm 1.8854)
Distributions on CPAN usually behave according to what we call the
CPAN mantra. Or since the advent of Module::Build we should talk about
See the source for details.
+=item use_inst($module)
+
+Similary to L<has_inst()> tries to load optional library but also dies if
+library is not available
+
=item has_usable($module)
Returns true if the module is installed and in a usable state. Only
distributions, authors, and bundles. If the object already exists, this
method returns the object; otherwise, it calls the constructor.
+=item frontend()
+
+=item frontend($new_frontend)
+
+Getter/setter for frontend object. Method just allows to subclass CPAN.pm.
+
=back
=head1 SECURITY
Henk P. Penning maintains a site that collects data about CPAN sites:
- http://www.cs.uu.nl/people/henkp/mirmon/cpan.html
+ http://mirrors.cpan.org/
Also, feel free to play with experimental features. Run
You have the choice to set the config variable C<scan_cache> to
C<never>. Then you must clean it up yourself. The other possible
values, C<atstart> and C<atexit> clean up the build directory when you
-start or exit the CPAN shell, respectively. If you never start up the
-CPAN shell, you probably also have to clean up the build directory
+start (or more precisely, after the first extraction into the build
+directory) or exit the CPAN shell, respectively. If you never start up
+the CPAN shell, you probably also have to clean up the build directory
yourself.
=back