lib/Memoize/t/tie_storable.t Memoize Storable interface test
lib/Memoize/t/tie.t Memoize tied file test
lib/Memoize/t/unmemoize.t Memoize 'unmemoize' function test
+lib/Module/Build/API.pm Module::Build
lib/Module/Build/Authoring.pod Module::Build
lib/Module/Build/Base.pm Module::Build
lib/Module/Build/Changes Module::Build
use vars qw($VERSION @ISA);
@ISA = qw(Module::Build::Base);
-$VERSION = '0.27_10';
+$VERSION = '0.28';
$VERSION = eval $VERSION;
# Okay, this is the brute-force method of finding out what kind of
=item Authoring Reference (L<Module::Build::Authoring>)
-This document describes the C<Module::Build> API for authors who are
+This document describes the structure and organization of
+C<Module::Build>, and the relevant concepts needed by authors who are
writing F<Build.PL> scripts for a distribution or controlling
-C<Module::Build> processes programmatically. It describes the
-methods available as well as providing general information on
-subclassing C<Module::Build> to alter and extend its behavior. Also,
-there is a section on controlling the Build process from other
-scripts, including how to construct an object and how to invoke
-actions through it from an external script.
+C<Module::Build> processes programmatically.
+
+=item API Reference (L<Module::Build::API>)
+
+This is a reference to the C<Module::Build> API.
=item Cookbook (L<Module::Build::Cookbook>)
[version 0.01]
This action will use C<ExtUtils::Install> to install the files from
-C<blib/> into the system. See L<INSTALL PATHS>
+C<blib/> into the system. See L<"INSTALL PATHS">
for details about how Module::Build determines where to install
things, and how to influence this process.
[version 0.28]
-When Module::Build starts up, it will look for a file,
-F<$ENV{HOME}/.modulebuildrc>. If the file exists, the options
+When Module::Build starts up, it will look first for a file,
+F<$ENV{HOME}/.modulebuildrc>. If it's not found there, it will look
+in the the F<.modulebuildrc> file in the directories referred to by
+the environment variables C<HOMEDRIVE> + C<HOMEDIR>, C<USERPROFILE>,
+C<APPDATA>, C<WINDIR>, C<SYS$LOGIN>. If the file exists, the options
specified there will be used as defaults, as if they were typed on the
command line. The defaults can be overridden by specifying new values
on the command line.
=back
+
=head2 About PREFIX Support
[version 0.28]
perl Makefile.PL PREFIX=/home/spurkis LIB=/home/spurkis/lib/perl5
-See L</INSTALL PATHS> for details on other
+See L</"INSTALL PATHS"> for details on other
installation options available and how to configure them.
=back
Bug reports are also welcome at
<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Module-Build>.
-An anonymous CVS repository containing the latest development version
-is available; see <http://sourceforge.net/cvs/?group_id=45731> for the
-details of how to access it.
+The latest development version is available from the Subversion
+repository at <https://svn.perl.org/modules/Module-Build/trunk/>
=head1 COPYRIGHT
=head1 SEE ALSO
-perl(1), Module::Build::Cookbook(3), Module::Build::Authoring(3),
-ExtUtils::MakeMaker(3), YAML(3)
+perl(1), L<Module::Build::Cookbook>(3), L<Module::Build::Authoring>(3),
+L<Module::Build::API>(3), L<ExtUtils::MakeMaker>(3), L<YAML>(3)
F<META.yml> Specification:
L<http://module-build.sourceforge.net/META-spec-v1.2.html>
L<http://www.dsmit.com/cons/>
+L<http://search.cpan.org/dist/PerlBuildSystem/>
+
=cut
--- /dev/null
+=head1 NAME
+
+Module::Build::API - API Reference for Module Authors
+
+
+=head1 DESCRIPTION
+
+I list here some of the most important methods in C<Module::Build>.
+Normally you won't need to deal with these methods unless you want to
+subclass C<Module::Build>. But since one of the reasons I created
+this module in the first place was so that subclassing is possible
+(and easy), I will certainly write more docs as the interface
+stabilizes.
+
+
+=head2 CONSTRUCTORS
+
+=over 4
+
+=item current()
+
+[version 0.20]
+
+This method returns a reasonable facsimile of the currently-executing
+C<Module::Build> object representing the current build. You can use
+this object to query its C<notes()> method, inquire about installed
+modules, and so on. This is a great way to share information between
+different parts of your build process. For instance, you can ask
+the user a question during C<perl Build.PL>, then use their answer
+during a regression test:
+
+ # In Build.PL:
+ my $color = $build->prompt("What is your favorite color?");
+ $build->notes(color => $color);
+
+ # In t/colortest.t:
+ use Module::Build;
+ my $build = Module::Build->current;
+ my $color = $build->notes('color');
+ ...
+
+The way the C<current()> method is currently implemented, there may be
+slight differences between the C<$build> object in Build.PL and the
+one in C<t/colortest.t>. It is our goal to minimize these differences
+in future releases of Module::Build, so please report any anomalies
+you find.
+
+One important caveat: in its current implementation, C<current()> will
+B<NOT> work correctly if you have changed out of the directory that
+C<Module::Build> was invoked from.
+
+=item new()
+
+[version 0.03]
+
+Creates a new Module::Build object. Arguments to the new() method are
+listed below. Most arguments are optional, but you must provide
+either the C<module_name> argument, or C<dist_name> and one of
+C<dist_version> or C<dist_version_from>. In other words, you must
+provide enough information to determine both a distribution name and
+version.
+
+
+=over 4
+
+=item add_to_cleanup
+
+[version 0.19]
+
+An array reference of files to be cleaned up when the C<clean> action
+is performed. See also the add_to_cleanup() method.
+
+=item auto_features
+
+[version 0.26]
+
+This parameter supports the setting of features (see
+L<feature($name)>) automatically based on a set of prerequisites. For
+instance, for a module that could optionally use either MySQL or
+PostgreSQL databases, you might use C<auto_features> like this:
+
+ my $build = Module::Build->new
+ (
+ ...other stuff here...
+ auto_features => {
+ pg_support => {
+ description => "Interface with Postgres databases",
+ requires => { 'DBD::Pg' => 23.3,
+ 'DateTime::Format::Pg' => 0 },
+ },
+ mysql_support => {
+ description => "Interface with MySQL databases",
+ requires => { 'DBD::mysql' => 17.9,
+ 'DateTime::Format::MySQL' => 0 },
+ },
+ }
+ );
+
+For each feature named, the required prerequisites will be checked, and
+if there are no failures, the feature will be enabled (set to C<1>).
+Otherwise the failures will be displayed to the user and the feature
+will be disabled (set to C<0>).
+
+See the documentation for L<requires> for the details of how
+requirements can be specified.
+
+=item autosplit
+
+[version 0.04]
+
+An optional C<autosplit> argument specifies a file which should be run
+through the C<Autosplit::autosplit()> function. If multiple files
+should be split, the argument may be given as an array of the files to
+split.
+
+In general I don't consider autosplitting a great idea, because it's
+not always clear that autosplitting achieves its intended performance
+benefits. It may even harm performance in environments like mod_perl,
+where as much as possible of a module's code should be loaded during
+startup.
+
+=item build_class
+
+[version 0.28]
+
+The Module::Build class or subclass to use in the build
+script. Defaults to "Module::Build" or the class name passed to or
+created by a call to C<subclass()>. This property is useful if you're
+writing a custom Module::Build subclass and have a bootstrapping
+problem--that is, your subclass requires modules that may not be
+installed when C<perl Build.PL> is executed, but you've listed in
+C<build_requires> so that they should be available when C<./Build> is
+executed.
+
+=item build_requires
+
+[version 0.07]
+
+Modules listed in this section are necessary to build and install the
+given module, but are not necessary for regular usage of it. This is
+actually an important distinction - it allows for tighter control over
+the body of installed modules, and facilitates correct dependency
+checking on binary/packaged distributions of the module.
+
+See the documentation for L<Module::Build::Authoring/"PREREQUISITES">
+for the details of how requirements can be specified.
+
+=item create_packlist
+
+[version 0.28]
+
+If true, this parameter tells Module::Build to create a F<.packlist>
+file during the C<install> action, just like ExtUtils::MakeMaker does.
+The file is created in a subdirectory of the C<arch> installation
+location. It is used by some other tools (CPAN, CPANPLUS, etc.) for
+determining what files are part of an install.
+
+The default value is true. This parameter was introduced in
+Module::Build version 0.2609; previously no packlists were ever
+created by Module::Build.
+
+=item c_source
+
+[version 0.04]
+
+An optional C<c_source> argument specifies a directory which contains
+C source files that the rest of the build may depend on. Any C<.c>
+files in the directory will be compiled to object files. The
+directory will be added to the search path during the compilation and
+linking phases of any C or XS files.
+
+=item conflicts
+
+[version 0.07]
+
+Modules listed in this section conflict in some serious way with the
+given module. C<Module::Build> (or some higher-level tool) will
+refuse to install the given module if the given module/version is also
+installed.
+
+See the documentation for L<Module::Build::Authoring/"PREREQUISITES">
+for the details of how requirements can be specified.
+
+=item create_makefile_pl
+
+[version 0.19]
+
+This parameter lets you use Module::Build::Compat during the
+C<distdir> (or C<dist>) action to automatically create a Makefile.PL
+for compatibility with ExtUtils::MakeMaker. The parameter's value
+should be one of the styles named in the Module::Build::Compat
+documentation.
+
+=item create_readme
+
+[version 0.22]
+
+This parameter tells Module::Build to automatically create a F<README>
+file at the top level of your distribution. Currently it will simply
+use C<Pod::Text> (or C<Pod::Readme> if it's installed) on the file
+indicated by C<dist_version_from> and put the result in the F<README>
+file. This is by no means the only recommended style for writing a
+README, but it seems to be one common one used on the CPAN.
+
+If you generate a F<README> in this way, it's probably a good idea to
+create a separate F<INSTALL> file if that information isn't in the
+generated F<README>.
+
+=item dist_abstract
+
+[version 0.20]
+
+This should be a short description of the distribution. This is used
+when generating metadata for F<META.yml> and PPD files. If it is not
+given then C<Module::Build> looks in the POD of the module from which
+it gets the distribution's version. It looks for the first line
+matching C<$package\s-\s(.+)>, and uses the captured text as the
+abstract.
+
+=item dist_author
+
+[version 0.20]
+
+This should be something like "John Doe <jdoe@example.com>", or if
+there are multiple authors, an anonymous array of strings may be
+specified. This is used when generating metadata for F<META.yml> and
+PPD files. If this is not specified, then C<Module::Build> looks at
+the module from which it gets the distribution's version. If it finds
+a POD section marked "=head1 AUTHOR", then it uses the contents of
+this section.
+
+=item dist_name
+
+[version 0.11]
+
+Specifies the name for this distribution. Most authors won't need to
+set this directly, they can use C<module_name> to set C<dist_name> to
+a reasonable default. However, some agglomerative distributions like
+C<libwww-perl> or C<bioperl> have names that don't correspond directly
+to a module name, so C<dist_name> can be set independently.
+
+=item dist_version
+
+[version 0.11]
+
+Specifies a version number for the distribution. See C<module_name>
+or C<dist_version_from> for ways to have this set automatically from a
+C<$VERSION> variable in a module. One way or another, a version
+number needs to be set.
+
+=item dist_version_from
+
+[version 0.11]
+
+Specifies a file to look for the distribution version in. Most
+authors won't need to set this directly, they can use C<module_name>
+to set it to a reasonable default.
+
+The version is extracted from the specified file according to the same
+rules as C<ExtUtils::MakeMaker> and C<CPAN.pm>. It involves finding
+the first line that matches the regular expression
+
+ /([\$*])(([\w\:\']*)\bVERSION)\b.*\=/
+
+eval()-ing that line, then checking the value of the C<$VERSION>
+variable. Quite ugly, really, but all the modules on CPAN depend on
+this process, so there's no real opportunity to change to something
+better.
+
+=item dynamic_config
+
+[version 0.07]
+
+A boolean flag indicating whether the F<Build.PL> file must be
+executed, or whether this module can be built, tested and installed
+solely from consulting its metadata file. The main reason to set this
+to a true value is that your module performs some dynamic
+configuration as part of its build/install process. If the flag is
+omitted, the F<META.yml> spec says that installation tools should
+treat it as 1 (true), because this is a safer way to behave.
+
+Currently C<Module::Build> doesn't actually do anything with this flag
+- it's up to higher-level tools like C<CPAN.pm> to do
+something useful with it. It can potentially bring lots of security,
+packaging, and convenience improvements.
+
+=item extra_compiler_flags
+
+=item extra_linker_flags
+
+[version 0.19]
+
+These parameters can contain array references (or strings, in which
+case they will be split into arrays) to pass through to the compiler
+and linker phases when compiling/linking C code. For example, to tell
+the compiler that your code is C++, you might do:
+
+ my $build = Module::Build->new
+ (
+ module_name => 'Foo::Bar',
+ extra_compiler_flags => ['-x', 'c++'],
+ );
+
+To link your XS code against glib you might write something like:
+
+ my $build = Module::Build->new
+ (
+ module_name => 'Foo::Bar',
+ dynamic_config => 1,
+ extra_compiler_flags => scalar `glib-config --cflags`,
+ extra_linker_flags => scalar `glib-config --libs`,
+ );
+
+=item get_options
+
+[version 0.26]
+
+You can pass arbitrary command line options to F<Build.PL> or
+F<Build>, and they will be stored in the Module::Build object and can
+be accessed via the C<args()> method. However, sometimes you want
+more flexibility out of your argument processing than this allows. In
+such cases, use the C<get_options> parameter to pass in a hash
+reference of argument specifications, and the list of arguments to
+F<Build.PL> or F<Build> will be processed according to those
+specifications before they're passed on to C<Module::Build>'s own
+argument processing.
+
+The supported option specification hash keys are:
+
+
+=over 4
+
+=item type
+
+The type of option. The types are those supported by Getopt::Long; consult
+its documentation for a complete list. Typical types are C<=s> for strings,
+C<+> for additive options, and C<!> for negatable options. If the
+type is not specified, it will be considered a boolean, i.e. no
+argument is taken and a value of 1 will be assigned when the option is
+encountered.
+
+=item store
+
+A reference to a scalar in which to store the value passed to the option.
+If not specified, the value will be stored under the option name in the
+hash returned by the C<args()> method.
+
+=item default
+
+A default value for the option. If no default value is specified and no option
+is passed, then the option key will not exist in the hash returned by
+C<args()>.
+
+=back
+
+
+You can combine references to your own variables or subroutines with
+unreferenced specifications, for which the result will also be stored in the
+hash returned by C<args()>. For example:
+
+ my $loud = 0;
+ my $build = Module::Build->new
+ (
+ module_name => 'Foo::Bar',
+ get_options => {
+ loud => { store => \$loud },
+ dbd => { type => '=s' },
+ quantity => { type => '+' },
+ }
+ );
+
+ print STDERR "HEY, ARE YOU LISTENING??\n" if $loud;
+ print "We'll use the ", $build->args('dbd'), " DBI driver\n";
+ print "Are you sure you want that many?\n"
+ if $build->args('quantity') > 2;
+
+The arguments for such a specification can be called like so:
+
+ perl Build.PL --loud --dbd=DBD::pg --quantity --quantity --quantity
+
+B<WARNING:> Any option specifications that conflict with Module::Build's own
+options (defined by its properties) will throw an exception.
+
+Consult the Getopt::Long documentation for details on its usage.
+
+=item include_dirs
+
+[version 0.24]
+
+Specifies any additional directories in which to search for C header
+files. May be given as a string indicating a single directory, or as
+a list reference indicating multiple directories.
+
+=item install_path
+
+[version 0.19]
+
+You can set paths for individual installable elements by using the
+C<install_path> parameter:
+
+ my $build = Module::Build->new
+ (
+ ...other stuff here...
+ install_path => {
+ lib => '/foo/lib',
+ arch => '/foo/lib/arch',
+ }
+ );
+
+=item installdirs
+
+[version 0.19]
+
+Determines where files are installed within the normal perl hierarchy
+as determined by F<Config.pm>. Valid values are: C<core>, C<site>,
+C<vendor>. The default is C<site>. See
+L<Module::Build/"INSTALL PATHS">
+
+=item license
+
+[version 0.07]
+
+Specifies the licensing terms of your distribution. Valid options include:
+
+
+=over 4
+
+=item apache
+
+The distribution is licensed under the Apache Software License
+(http://opensource.org/licenses/apachepl.php).
+
+=item artistic
+
+The distribution is licensed under the Artistic License, as specified
+by the F<Artistic> file in the standard perl distribution.
+
+=item bsd
+
+The distribution is licensed under the BSD License
+(http://www.opensource.org/licenses/bsd-license.php).
+
+=item gpl
+
+The distribution is licensed under the terms of the Gnu General
+Public License (http://www.opensource.org/licenses/gpl-license.php).
+
+=item lgpl
+
+The distribution is licensed under the terms of the Gnu Lesser
+General Public License
+(http://www.opensource.org/licenses/lgpl-license.php).
+
+=item mit
+
+The distribution is licensed under the MIT License
+(http://opensource.org/licenses/mit-license.php).
+
+=item mozilla
+
+The distribution is licensed under the Mozilla Public
+License. (http://opensource.org/licenses/mozilla1.0.php or
+http://opensource.org/licenses/mozilla1.1.php)
+
+=item open_source
+
+The distribution is licensed under some other Open Source
+Initiative-approved license listed at
+http://www.opensource.org/licenses/ .
+
+=item perl
+
+The distribution may be copied and redistributed under the same terms
+as perl itself (this is by far the most common licensing option for
+modules on CPAN). This is a dual license, in which the user may
+choose between either the GPL or the Artistic license.
+
+=item restrictive
+
+The distribution may not be redistributed without special permission
+from the author and/or copyright holder.
+
+=item unrestricted
+
+The distribution is licensed under a license that is B<not> approved
+by www.opensource.org but that allows distribution without
+restrictions.
+
+=back
+
+
+Note that you must still include the terms of your license in your
+documentation - this field only lets automated tools figure out your
+licensing restrictions. Humans still need something to read. If you
+choose to provide this field, you should make sure that you keep it in
+sync with your written documentation if you ever change your licensing
+terms.
+
+It is a fatal error to use a license other than the ones mentioned
+above. This is not because I wish to impose licensing terms on you -
+please let me know if you would like another license option to be
+added to the list. You may also use a license type of C<unknown> if
+you don't wish to specify your terms (but this is usually not a good
+idea for you to do!).
+
+I just started out with a small set of licenses to keep things simple,
+figuring I'd let people with actual working knowledge in this area
+tell me what to do. So if that's you, drop me a line.
+
+=item meta_add
+
+[version 0.28]
+
+A hash of key/value pairs that should be added to the F<META.yml> file
+during the C<distmeta> action. Any existing entries with the same
+names will be overridden.
+
+=item meta_merge
+
+[version 0.28]
+
+A hash of key/value pairs that should be merged into the F<META.yml>
+file during the C<distmeta> action. Any existing entries with the
+same names will be overridden.
+
+The only difference between C<meta_add> and C<meta_merge> is their
+behavior on hash-valued and array-valued entries: C<meta_add> will
+completely blow away the existing hash or array value, but
+C<meta_merge> will merge the supplied data into the existing hash or
+array value.
+
+=item module_name
+
+[version 0.03]
+
+The C<module_name> is a shortcut for setting default values of
+C<dist_name> and C<dist_version_from>, reflecting the fact that the
+majority of CPAN distributions are centered around one "main" module.
+For instance, if you set C<module_name> to C<Foo::Bar>, then
+C<dist_name> will default to C<Foo-Bar> and C<dist_version_from> will
+default to C<lib/Foo/Bar.pm>. C<dist_version_from> will in turn be
+used to set C<dist_version>.
+
+Setting C<module_name> won't override a C<dist_*> parameter you
+specify explicitly.
+
+=item PL_files
+
+[version 0.06]
+
+An optional parameter specifying a set of C<.PL> files in your
+distribution. These will be run as Perl scripts prior to processing
+the rest of the files in your distribution. They are usually used as
+templates for creating other files dynamically, so that a file like
+C<lib/Foo/Bar.pm.PL> might create the file C<lib/Foo/Bar.pm>.
+
+The files are specified with the C<.PL> files as hash keys, and the
+file(s) they generate as hash values, like so:
+
+ my $build = Module::Build->new
+ (
+ module_name => 'Foo::Bar',
+ ...
+ PL_files => { 'lib/Foo/Bar.pm.PL' => 'lib/Foo/Bar.pm' },
+ );
+
+Note that the path specifications are I<always> given in Unix-like
+format, not in the style of the local system.
+
+If your C<.PL> scripts don't create any files, or if they create files
+with unexpected names, or even if they create multiple files, you can
+indicate that so that Module::Build can properly handle these created
+files:
+
+ PL_files => {
+ 'lib/Foo/Bar.pm.PL' => 'lib/Foo/Bar.pm',
+ 'lib/something.PL' => ['/lib/something', '/lib/else'],
+ 'lib/funny.PL' => [],
+ }
+
+=item pm_files
+
+[version 0.19]
+
+An optional parameter specifying the set of C<.pm> files in this
+distribution, specified as a hash reference whose keys are the files'
+locations in the distributions, and whose values are their logical
+locations based on their package name, i.e. where they would be found
+in a "normal" Module::Build-style distribution. This parameter is
+mainly intended to support alternative layouts of files.
+
+For instance, if you have an old-style MakeMaker distribution for a
+module called C<Foo::Bar> and a F<Bar.pm> file at the top level of the
+distribution, you could specify your layout in your C<Build.PL> like
+this:
+
+ my $build = Module::Build->new
+ (
+ module_name => 'Foo::Bar',
+ ...
+ pm_files => { 'Bar.pm' => 'lib/Foo/Bar.pm' },
+ );
+
+Note that the values should include C<lib/>, because this is where
+they would be found in a "normal" Module::Build-style distribution.
+
+Note also that the path specifications are I<always> given in
+Unix-like format, not in the style of the local system.
+
+=item pod_files
+
+[version 0.19]
+
+Just like C<pm_files>, but used for specifying the set of C<.pod>
+files in your distribution.
+
+=item recommends
+
+[version 0.08]
+
+This is just like the C<requires> argument, except that modules listed
+in this section aren't essential, just a good idea. We'll just print
+a friendly warning if one of these modules aren't found, but we'll
+continue running.
+
+If a module is recommended but not required, all tests should still
+pass if the module isn't installed. This may mean that some tests
+may be skipped if recommended dependencies aren't present.
+
+Automated tools like CPAN.pm should inform the user when recommended
+modules aren't installed, and it should offer to install them if it
+wants to be helpful.
+
+See the documentation for L<Module::Build::Authoring/"PREREQUISITES">
+for the details of how requirements can be specified.
+
+=item recursive_test_files
+
+[version 0.28]
+
+Normally, C<Module::Build> does not search subdirectories when looking
+for tests to run. When this options is set it will search recursively
+in all subdirectories of the standard 't' test directory.
+
+=item requires
+
+[version 0.07]
+
+An optional C<requires> argument specifies any module prerequisites
+that the current module depends on.
+
+One note: currently C<Module::Build> doesn't actually I<require> the
+user to have dependencies installed, it just strongly urges. In the
+future we may require it. There's also a C<recommends> section for
+things that aren't absolutely required.
+
+Automated tools like CPAN.pm should refuse to install a module if one
+of its dependencies isn't satisfied, unless a "force" command is given
+by the user. If the tools are helpful, they should also offer to
+install the dependencies.
+
+A synonym for C<requires> is C<prereq>, to help succour people
+transitioning from C<ExtUtils::MakeMaker>. The C<requires> term is
+preferred, but the C<prereq> term will remain valid in future
+distributions.
+
+See the documentation for L<Module::Build::Authoring/"PREREQUISITES">
+for the details of how requirements can be specified.
+
+=item script_files
+
+[version 0.18]
+
+An optional parameter specifying a set of files that should be
+installed as executable perl scripts when the module is installed.
+May be given as an array reference of the files, or as a hash
+reference whose keys are the files (and whose values will currently be
+ignored).
+
+The default is to install no script files - in other words, there is
+no default location where Module::Build will look for script files to
+install.
+
+For backward compatibility, you may use the parameter C<scripts>
+instead of C<script_files>. Please consider this usage deprecated,
+though it will continue to exist for several version releases.
+
+=item sign
+
+[version 0.16]
+
+If a true value is specified for this parameter, C<Module::Signature>
+will be used (via the 'distsign' action) to create a SIGNATURE file
+for your distribution during the 'distdir' action, and to add the
+SIGNATURE file to the MANIFEST (therefore, don't add it yourself).
+
+The default value is false. In the future, the default may change to
+true if you have C<Module::Signature> installed on your system.
+
+=item test_files
+
+[version 0.23]
+
+An optional parameter specifying a set of files that should be used as
+C<Test::Harness>-style regression tests to be run during the C<test>
+action. May be given as an array reference of the files, or as a hash
+reference whose keys are the files (and whose values will currently be
+ignored). If the argument is given as a single string (not in an
+array reference), that string will be treated as a C<glob()> pattern
+specifying the files to use.
+
+The default is to look for a F<test.pl> script in the top-level
+directory of the distribution, and any files matching the glob pattern
+C<*.t> in the F<t/> subdirectory. If the C<recursive_test_files>
+property is true, then the C<t/> directory will be scanned recursively
+for C<*.t> files.
+
+=item xs_files
+
+[version 0.19]
+
+Just like C<pm_files>, but used for specifying the set of C<.xs>
+files in your distribution.
+
+=back
+
+
+=item new_from_context(%args)
+
+[version 0.28]
+
+When called from a directory containing a F<Build.PL> script and a
+F<META.yml> file (in other words, the base directory of a
+distribution), this method will run the F<Build.PL> and return the
+resulting C<Module::Build> object to the caller. Any key-value
+arguments given to C<new_from_context()> are essentially like
+command line arguments given to the F<Build.PL> script, so for example
+you could pass C<< verbose => 1 >> to this method to turn on
+verbosity.
+
+=item resume()
+
+[version 0.03]
+
+You'll probably never call this method directly, it's only called from
+the auto-generated C<Build> script. The C<new()> method is only
+called once, when the user runs C<perl Build.PL>. Thereafter, when
+the user runs C<Build test> or another action, the C<Module::Build>
+object is created using the C<resume()> method to re-instantiate with
+the settings given earlier to C<new()>.
+
+=item subclass()
+
+[version 0.06]
+
+This creates a new C<Module::Build> subclass on the fly, as described
+in the L<Module::Build::Authoring/"SUBCLASSING"> section. The caller
+must provide either a C<class> or C<code> parameter, or both. The
+C<class> parameter indicates the name to use for the new subclass, and
+defaults to C<MyModuleBuilder>. The C<code> parameter specifies Perl
+code to use as the body of the subclass.
+
+=back
+
+
+=head2 METHODS
+
+=over 4
+
+=item add_build_element($type)
+
+[version 0.26]
+
+Adds a new type of entry to the build process. Accepts a single
+string specifying its type-name. There must also be a method defined
+to process things of that type, e.g. if you add a build element called
+C<'foo'>, then you must also define a method called
+C<process_foo_files()>.
+
+See also
+L<Module::Build::Cookbook/"Adding new file types to the build process">.
+
+=item add_to_cleanup(@files)
+
+[version 0.03]
+
+You may call C<< $self->add_to_cleanup(@patterns) >> to tell
+C<Module::Build> that certain files should be removed when the user
+performs the C<Build clean> action. The arguments to the method are
+patterns suitable for passing to Perl's C<glob()> function, specified
+in either Unix format or the current machine's native format. It's
+usually convenient to use Unix format when you hard-code the filenames
+(e.g. in F<Build.PL>) and the native format when the names are
+programmatically generated (e.g. in a testing script).
+
+I decided to provide a dynamic method of the C<$build> object, rather
+than just use a static list of files named in the F<Build.PL>, because
+these static lists can get difficult to manage. I usually prefer to
+keep the responsibility for registering temporary files close to the
+code that creates them.
+
+=item args()
+
+[version 0.26]
+
+ my $args_href = $build->args;
+ my %args = $build->args;
+ my $arg_value = $build->args($key);
+ $build->args($key, $value);
+
+This method is the preferred interface for retrieving the arguments passed via
+command line options to F<Build.PL> or F<Build>, minus the Module-Build
+specific options.
+
+When called in in a scalar context with no arguments, this method returns a
+reference to the hash storing all of the arguments; in an array context, it
+returns the hash itself. When passed a single argument, it returns the value
+stored in the args hash for that option key. When called with two arguments,
+the second argument is assigned to the args hash under the key passed as the
+first argument.
+
+=item autosplit_file($from, $to)
+
+[version 0.28]
+
+Invokes the C<AutoSplit> module on the C<$from> file, sending the
+output to the C<lib/auto> directory inside C<$to>. C<$to> is
+typically the C<blib/> directory.
+
+=item base_dir()
+
+[version 0.14]
+
+Returns a string containing the root-level directory of this build,
+i.e. where the C<Build.PL> script and the C<lib> directory can be
+found. This is usually the same as the current working directory,
+because the C<Build> script will C<chdir()> into this directory as
+soon as it begins execution.
+
+=item build_requires()
+
+[version 0.21]
+
+Returns a hash reference indicating the C<build_requires>
+prerequisites that were passed to the C<new()> method.
+
+=item check_installed_status($module, $version)
+
+[version 0.11]
+
+This method returns a hash reference indicating whether a version
+dependency on a certain module is satisfied. The C<$module> argument
+is given as a string like C<"Data::Dumper"> or C<"perl">, and the
+C<$version> argument can take any of the forms described in L<requires>
+above. This allows very fine-grained version checking.
+
+The returned hash reference has the following structure:
+
+ {
+ ok => $whether_the_dependency_is_satisfied,
+ have => $version_already_installed,
+ need => $version_requested, # Same as incoming $version argument
+ message => $informative_error_message,
+ }
+
+If no version of C<$module> is currently installed, the C<have> value
+will be the string C<< "<none>" >>. Otherwise the C<have> value will
+simply be the version of the installed module. Note that this means
+that if C<$module> is installed but doesn't define a version number,
+the C<have> value will be C<undef> - this is why we don't use C<undef>
+for the case when C<$module> isn't installed at all.
+
+This method may be called either as an object method
+(C<< $build->check_installed_status($module, $version) >>)
+or as a class method
+(C<< Module::Build->check_installed_status($module, $version) >>).
+
+=item check_installed_version($module, $version)
+
+[version 0.05]
+
+Like C<check_installed_status()>, but simply returns true or false
+depending on whether module C<$module> satisfies the dependency
+C<$version>.
+
+If the check succeeds, the return value is the actual version of
+C<$module> installed on the system. This allows you to do the
+following:
+
+ my $installed = $build->check_installed_version('DBI', '1.15');
+ if ($installed) {
+ print "Congratulations, version $installed of DBI is installed.\n";
+ } else {
+ die "Sorry, you must install DBI.\n";
+ }
+
+If the check fails, we return false and set C<$@> to an informative
+error message.
+
+If C<$version> is any non-true value (notably zero) and any version of
+C<$module> is installed, we return true. In this case, if C<$module>
+doesn't define a version, or if its version is zero, we return the
+special value "0 but true", which is numerically zero, but logically
+true.
+
+In general you might prefer to use C<check_installed_status> if you
+need detailed information, or this method if you just need a yes/no
+answer.
+
+=item compare_versions($v1, $op, $v2)
+
+[version 0.28]
+
+Compares two module versions C<$v1> and C<$v2> using the operator
+C<$op>, which should be one of Perl's numeric operators like C<!=> or
+C<< >= >> or the like. We do at least a halfway-decent job of
+handling versions that aren't strictly numeric, like C<0.27_02>, but
+exotic stuff will likely cause problems.
+
+In the future, the guts of this method might be replaced with a call
+out to C<version.pm>.
+
+=item config()
+
+[version 0.22]
+
+Returns a hash reference containing the C<Config.pm> hash, including
+any changes the author or user has specified. This is a reference to
+the actual internal hash we use, so you probably shouldn't modify
+stuff there.
+
+=item config_data($name)
+
+=item config_data($name => $value)
+
+[version 0.26]
+
+With a single argument, returns the value of the configuration
+variable C<$name>. With two arguments, sets the given configuration
+variable to the given value. The value may be any perl scalar that's
+serializable with C<Data::Dumper>. For instance, if you write a
+module that can use a MySQL or PostgreSQL back-end, you might create
+configuration variables called C<mysql_connect> and
+C<postgres_connect>, and set each to an array of connection parameters
+for C<< DBI->connect() >>.
+
+Configuration values set in this way using the Module::Build object
+will be available for querying during the build/test process and after
+installation via the generated C<...::ConfigData> module, as
+C<< ...::ConfigData->config($name) >>.
+
+The C<feature()> and C<config_data()> methods represent
+Module::Build's main support for configuration of installed modules.
+See also L<Module::Build::Authoring/"SAVING CONFIGURATION INFORMATION">.
+
+=item conflicts()
+
+[version 0.21]
+
+Returns a hash reference indicating the C<conflicts> prerequisites
+that were passed to the C<new()> method.
+
+=item contains_pod($file)
+
+[version 0.20]
+
+[Deprecated] Please see L<Module::Build::ModuleInfo> instead.
+
+Returns true if the given file appears to contain POD documentation.
+Currently this checks whether the file has a line beginning with
+'=pod', '=head', or '=item', but the exact semantics may change in the
+future.
+
+=item copy_if_modified(%parameters)
+
+[version 0.19]
+
+Takes the file in the C<from> parameter and copies it to the file in
+the C<to> parameter, or the directory in the C<to_dir> parameter, if
+the file has changed since it was last copied (or if it doesn't exist
+in the new location). By default the entire directory structure of
+C<from> will be copied into C<to_dir>; an optional C<flatten>
+parameter will copy into C<to_dir> without doing so.
+
+Returns the path to the destination file, or C<undef> if nothing
+needed to be copied.
+
+Any directories that need to be created in order to perform the
+copying will be automatically created.
+
+The destination file is set to read-only. If the source file has the
+executable bit set, then the destination file will be made executable.
+
+=item create_build_script()
+
+[version 0.05]
+
+Creates an executable script called C<Build> in the current directory
+that will be used to execute further user actions. This script is
+roughly analogous (in function, not in form) to the Makefile created
+by C<ExtUtils::MakeMaker>. This method also creates some temporary
+data in a directory called C<_build/>. Both of these will be removed
+when the C<realclean> action is performed.
+
+=item current_action()
+
+[version 0.28]
+
+Returns the name of the currently-running action, such as "build" or
+"test". This action is not necessarily the action that was originally
+invoked by the user. For example, if the user invoked the "test"
+action, current_action() would initially return "test". However,
+action "test" depends on action "code", so current_action() will
+return "code" while that dependency is being executed. Once that
+action has completed, current_action() will again return "test".
+
+If you need to know the name of the original action invoked by the
+user, see L<invoked_action()> below.
+
+=item depends_on(@actions)
+
+[version 0.28]
+
+Invokes the named action or list of actions in sequence. Using this
+method is preferred to calling the action explicitly because it
+performs some internal record-keeping, and it ensures that the same
+action is not invoked multiple times (note: in future versions of
+Module::Build it's conceivable that this run-only-once mechanism will
+be changed to something more intelligent).
+
+Note that the name of this method is something of a misnomer; it
+should really be called something like
+C<invoke_actions_unless_already_invoked()> or something, but for
+better or worse (perhaps better!) we were still thinking in
+C<make>-like dependency terms when we created this method.
+
+See also C<dispatch()>. The main distinction between the two is that
+C<depends_on()> is meant to call an action from inside another action,
+whereas C<dispatch()> is meant to set the very top action in motion.
+
+=item dir_contains($first_dir, $second_dir)
+
+[version 0.28]
+
+Returns true if the first directory logically contains the second
+directory. This is just a convenience function because C<File::Spec>
+doesn't really provide an easy way to figure this out (but
+C<Path::Class> does...).
+
+=item dispatch($action, %args)
+
+[version 0.03]
+
+Invokes the build action C<$action>. Optionally, a list of options
+and their values can be passed in. This is equivalent to invoking an
+action at the command line, passing in a list of options.
+
+Custom options that have not been registered must be passed in as a
+hash reference in a key named "args":
+
+ $build->dispatch('foo', verbose => 1, args => { my_option => 'value' });
+
+This method is intended to be used to programmatically invoke build
+actions, e.g. by applications controlling Module::Build-based builds
+rather than by subclasses.
+
+See also C<depends_on()>. The main distinction between the two is that
+C<depends_on()> is meant to call an action from inside another action,
+whereas C<dispatch()> is meant to set the very top action in motion.
+
+=item dist_dir()
+
+[version 0.28]
+
+Returns the name of the directory that will be created during the
+C<dist> action. The name is derived from the C<dist_name> and
+C<dist_version> properties.
+
+=item dist_name()
+
+[version 0.21]
+
+Returns the name of the current distribution, as passed to the
+C<new()> method in a C<dist_name> or modified C<module_name>
+parameter.
+
+=item dist_version()
+
+[version 0.21]
+
+Returns the version of the current distribution, as determined by the
+C<new()> method from a C<dist_version>, C<dist_version_from>, or
+C<module_name> parameter.
+
+=item do_system($cmd, @args)
+
+[version 0.21]
+
+This is a fairly simple wrapper around Perl's C<system()> built-in
+command. Given a command and an array of optional arguments, this
+method will print the command to C<STDOUT>, and then execute it using
+Perl's C<system()>. It returns true or false to indicate success or
+failure (the opposite of how C<system()> works, but more intuitive).
+
+Note that if you supply a single argument to C<do_system()>, it
+will/may be processed by the systems's shell, and any special
+characters will do their special things. If you supply multiple
+arguments, no shell will get involved and the command will be executed
+directly.
+
+=item feature($name)
+
+=item feature($name => $value)
+
+[version 0.26]
+
+With a single argument, returns true if the given feature is set.
+With two arguments, sets the given feature to the given boolean value.
+In this context, a "feature" is any optional functionality of an
+installed module. For instance, if you write a module that could
+optionally support a MySQL or PostgreSQL backend, you might create
+features called C<mysql_support> and C<postgres_support>, and set them
+to true/false depending on whether the user has the proper databases
+installed and configured.
+
+Features set in this way using the Module::Build object will be
+available for querying during the build/test process and after
+installation via the generated C<...::ConfigData> module, as
+C<< ...::ConfigData->feature($name) >>.
+
+The C<feature()> and C<config_data()> methods represent
+Module::Build's main support for configuration of installed modules.
+See also L<Module::Build::Authoring/"SAVING CONFIGURATION INFORMATION">.
+
+=item have_c_compiler()
+
+[version 0.21]
+
+Returns true if the current system seems to have a working C compiler.
+We currently determine this by attempting to compile a simple C source
+file and reporting whether the attempt was successful.
+
+=item install_base_relpaths()
+
+=item install_base_relpaths($type)
+
+=item install_base_relpaths($type => $path)
+
+[version 0.28]
+
+Set or retrieve the relative paths that are appended to
+C<install_base> for any installable element. This is useful if you
+want to set the relative install path for custom build elements.
+
+With no argument, it returns a reference to a hash containing all
+elements and their respective values. This hash should not be modified
+directly; use the multi-argument below form to change values.
+
+The single argument form returns the value associated with the
+element C<$type>.
+
+The multi-argument form allows you to set the paths for element types.
+C<$value> must be a relative path using unix-like paths. (A series of
+directories seperated by slashes. Eg 'foo/bar'.) The return value is a
+localized path based on C<$value>.
+
+Assigning the value C<undef> to an element causes it to be removed.
+
+=item install_destination($type)
+
+[version 0.28]
+
+Returns the directory in which items of type C<$type> (e.g. C<lib>,
+C<arch>, C<bin>, or anything else returned by the C<install_types()>
+method) will be installed during the C<install> action. Any settings
+for C<install_path>, C<install_base>, and C<prefix> are taken into
+account when determining the return value.
+
+=item install_path()
+
+=item install_path($type)
+
+=item install_path($type => $path)
+
+[version 0.28]
+
+Set or retrieve paths for specific installable elements. This is
+useful when you want to examine any explicit install paths specified
+by the user on the command line, or if you want to set the install
+path for a specific installable element based on another attribute
+like C<install_base()>.
+
+With no argument, it returns a reference to a hash containing all
+elements and their respective values. This hash should not be modified
+directly; use the multi-argument below form to change values.
+
+The single argument form returns the value associated with the
+element C<$type>.
+
+The multi-argument form allows you to set the paths for element types.
+The supplied C<$path> should be an absolute path to install elements
+of C<$type>. The return value is C<$path>.
+
+Assigning the value C<undef> to an element causes it to be removed.
+
+=item install_types()
+
+[version 0.28]
+
+Returns a list of installable types that this build knows about.
+These types each correspond to the name of a directory in F<blib/>,
+and the list usually includes items such as C<lib>, C<arch>, C<bin>,
+C<script>, C<libdoc>, C<bindoc>, and if HTML documentation is to be
+built, C<libhtml> and C<binhtml>. Other user-defined types may also
+exist.
+
+=item invoked_action()
+
+[version 0.28]
+
+This is the name of the original action invoked by the user. This
+value is set when the user invokes F<Build.PL>, the F<Build> script,
+or programatically through the L<dispatch()> method. It does not
+change as sub-actions are executed as dependencies are evaluated.
+
+To get the name of the currently executing dependency, see
+L<current_action()> above.
+
+=item notes()
+
+=item notes($key)
+
+=item notes($key => $value)
+
+[version 0.20]
+
+The C<notes()> value allows you to store your own persistent
+information about the build, and to share that information among
+different entities involved in the build. See the example in the
+C<current()> method.
+
+The C<notes()> method is essentally a glorified hash access. With no
+arguments, C<notes()> returns the entire hash of notes. With one argument,
+C<notes($key)> returns the value associated with the given key. With two
+arguments, C<notes($key, $value)> sets the value associated with the given key
+to C<$value> and returns the new value.
+
+The lifetime of the C<notes> data is for "a build" - that is, the
+C<notes> hash is created when C<perl Build.PL> is run (or when the
+C<new()> method is run, if the Module::Build Perl API is being used
+instead of called from a shell), and lasts until C<perl Build.PL> is
+run again or the C<clean> action is run.
+
+=item orig_dir()
+
+[version 0.28]
+
+Returns a string containing the working directory that was in effect
+before the F<Build> script chdir()-ed into the C<base_dir>. This
+might be useful for writing wrapper tools that might need to chdir()
+back out.
+
+=item os_type()
+
+[version 0.04]
+
+If you're subclassing Module::Build and some code needs to alter its
+behavior based on the current platform, you may only need to know
+whether you're running on Windows, Unix, MacOS, VMS, etc., and not the
+fine-grained value of Perl's C<$^O> variable. The C<os_type()> method
+will return a string like C<Windows>, C<Unix>, C<MacOS>, C<VMS>, or
+whatever is appropriate. If you're running on an unknown platform, it
+will return C<undef> - there shouldn't be many unknown platforms
+though.
+
+=item prefix_relpaths()
+
+=item prefix_relpaths($installdirs)
+
+=item prefix_relpaths($installdirs, $type)
+
+=item prefix_relpaths($installdirs, $type => $path)
+
+[version 0.28]
+
+Set or retrieve the relative paths that are appended to C<prefix> for
+any installable element. This is useful if you want to set the
+relative install path for custom build elements.
+
+With no argument, it returns a reference to a hash containing all
+elements and their respective values as defined by the current
+C<installdirs> setting.
+
+With a single argument, it returns a reference to a hash containing
+all elements and their respective values as defined by
+C<$installdirs>.
+
+The hash returned by the above calls should not be modified directly;
+use the three-argument below form to change values.
+
+The two argument form returns the value associated with the
+element C<$type>.
+
+The multi-argument form allows you to set the paths for element types.
+C<$value> must be a relative path using unix-like paths. (A series of
+directories seperated by slashes. Eg 'foo/bar'.) The return value is a
+localized path based on C<$value>.
+
+Assigning the value C<undef> to an element causes it to be removed.
+
+=item prepare_metadata()
+
+[version 0.28]
+
+This method is provided for authors to override to customize the
+fields of F<META.yml>. It is passed a YAML::Node node object which can
+be modified as desired and then returned. E.g.
+
+ package My::Builder;
+ use base 'Module::Build';
+
+ sub prepare_metadata {
+ my $self = shift;
+ my $node = $self->SUPER::prepare_metadata( shift );
+ $node->{custom_field} = 'foo';
+ return $node;
+ }
+
+=item prereq_failures()
+
+[version 0.11]
+
+Returns a data structure containing information about any failed
+prerequisites (of any of the types described above), or C<undef> if
+all prerequisites are met.
+
+The data structure returned is a hash reference. The top level keys
+are the type of prerequisite failed, one of "requires",
+"build_requires", "conflicts", or "recommends". The associated values
+are hash references whose keys are the names of required (or
+conflicting) modules. The associated values of those are hash
+references indicating some information about the failure. For example:
+
+ {
+ have => '0.42',
+ need => '0.59',
+ message => 'Version 0.42 is installed, but we need version 0.59',
+ }
+
+or
+
+ {
+ have => '<none>',
+ need => '0.59',
+ message => 'Prerequisite Foo isn't installed',
+ }
+
+This hash has the same structure as the hash returned by the
+C<check_installed_status()> method, except that in the case of
+"conflicts" dependencies we change the "need" key to "conflicts" and
+construct a proper message.
+
+Examples:
+
+ # Check a required dependency on Foo::Bar
+ if ( $build->prereq_failures->{requires}{Foo::Bar} ) { ...
+
+ # Check whether there were any failures
+ if ( $build->prereq_failures ) { ...
+
+ # Show messages for all failures
+ my $failures = $build->prereq_failures;
+ while (my ($type, $list) = each %$failures) {
+ while (my ($name, $hash) = each %$list) {
+ print "Failure for $name: $hash->{message}\n";
+ }
+ }
+
+=item prereq_report()
+
+[version 0.28]
+
+Returns a human-readable (table-form) string showing all
+prerequisites, the versions required, and the versions actually
+installed. This can be useful for reviewing the configuration of your
+system prior to a build, or when compiling data to send for a bug
+report. The C<prereq_report> action is just a thin wrapper around the
+C<prereq_report()> method.
+
+=item prompt($message, $default)
+
+[version 0.12]
+
+Asks the user a question and returns their response as a string. The
+first argument specifies the message to display to the user (for
+example, C<"Where do you keep your money?">). The second argument,
+which is optional, specifies a default answer (for example,
+C<"wallet">). The user will be asked the question once.
+
+If C<prompt()> detects that it is not running interactively and there
+is nothing on STDIN or if the PERL_MM_USE_DEFAULT environment variable
+is set to true, the $default will be used without prompting. This
+prevents automated processes from blocking on user input.
+
+If no $default is provided an empty string will be used instead.
+
+This method may be called as a class or object method.
+
+=item recommends()
+
+[version 0.21]
+
+Returns a hash reference indicating the C<recommends> prerequisites
+that were passed to the C<new()> method.
+
+=item requires()
+
+[version 0.21]
+
+Returns a hash reference indicating the C<requires> prerequisites that
+were passed to the C<new()> method.
+
+=item rscan_dir($dir, $pattern)
+
+[version 0.28]
+
+Uses C<File::Find> to traverse the directory C<$dir>, returning a
+reference to an array of entries matching C<$pattern>. C<$pattern>
+may either be a regular expression (using C<qr//> or just a plain
+string), or a reference to a subroutine that will return true for
+wanted entries. If C<$pattern> is not given, all entries will be
+returned.
+
+Examples:
+
+ # All the *.pm files in lib/
+ $m->rscan_dir('lib', qr/\.pm$/)
+
+ # All the files in blib/ that aren't *.html files
+ $m->rscan_dir('blib', sub {-f $_ and not /\.html$/});
+
+ # All the files in t/
+ $m->rscan_dir('t');
+
+=item runtime_params()
+
+=item runtime_params($key)
+
+[version 0.28]
+
+The C<runtime_params()> method stores the values passed on the command line
+for valid properties (that is, any command line options for which
+C<valid_property()> returns a true value). The value on the command line may
+override the default value for a property, as well as any value specified in a
+call to C<new()>. This allows you to programmatically tell if C<perl Build.PL>
+or any execution of C<./Build> had command line options specified that
+override valid properties.
+
+The C<runtime_params()> method is essentally a glorified read-only hash. With
+no arguments, C<runtime_params()> returns the entire hash of properties
+specified on the command line. With one argument, C<runtime_params($key)>
+returns the value associated with the given key.
+
+The lifetime of the C<runtime_params> data is for "a build" - that is, the
+C<runtime_params> hash is created when C<perl Build.PL> is run (or when the
+C<new()> method is called, if the Module::Build Perl API is being used instead
+of called from a shell), and lasts until C<perl Build.PL> is run again or the
+C<clean> action is run.
+
+=item script_files()
+
+[version 0.18]
+
+Returns a hash reference whose keys are the perl script files to be
+installed, if any. This corresponds to the C<script_files> parameter to the
+C<new()> method. With an optional argument, this parameter may be set
+dynamically.
+
+For backward compatibility, the C<scripts()> method does exactly the
+same thing as C<script_files()>. C<scripts()> is deprecated, but it
+will stay around for several versions to give people time to
+transition.
+
+=item up_to_date($source_file, $derived_file)
+
+=item up_to_date(\@source_files, \@derived_files)
+
+[version 0.20]
+
+This method can be used to compare a set of source files to a set of
+derived files. If any of the source files are newer than any of the
+derived files, it returns false. Additionally, if any of the derived
+files do not exist, it returns false. Otherwise it returns true.
+
+The arguments may be either a scalar or an array reference of file
+names.
+
+=item y_n($message, $default)
+
+[version 0.12]
+
+Asks the user a yes/no question using C<prompt()> and returns true or
+false accordingly. The user will be asked the question repeatedly
+until they give an answer that looks like "yes" or "no".
+
+The first argument specifies the message to display to the user (for
+example, C<"Shall I invest your money for you?">), and the second
+argument specifies the default answer (for example, C<"y">).
+
+Note that the default is specified as a string like C<"y"> or C<"n">,
+and the return value is a Perl boolean value like 1 or 0. I thought
+about this for a while and this seemed like the most useful way to do
+it.
+
+This method may be called as a class or object method.
+
+=back
+
+
+=head2 Autogenerated Accessors
+
+In addition to the aforementioned methods, there are also some get/set
+accessor methods for the following properties:
+
+=over 4
+
+=item PL_files()
+
+=item autosplit()
+
+=item base_dir()
+
+=item bindoc_dirs()
+
+=item blib()
+
+=item build_bat()
+
+=item build_class()
+
+=item build_elements()
+
+=item build_requires()
+
+=item build_script()
+
+=item c_source()
+
+=item config()
+
+=item config_dir()
+
+=item conflicts()
+
+=item create_makefile_pl()
+
+=item create_packlist()
+
+=item create_readme()
+
+=item debugger()
+
+=item destdir()
+
+=item get_options()
+
+=item html_css()
+
+=item include_dirs()
+
+=item install_base()
+
+=item install_sets()
+
+=item installdirs()
+
+=item libdoc_dirs()
+
+=item license()
+
+=item magic_number()
+
+=item mb_version()
+
+=item meta_add()
+
+=item meta_merge()
+
+=item metafile()
+
+=item module_name()
+
+=item orig_dir()
+
+=item original_prefix()
+
+=item perl()
+
+=item pm_files()
+
+=item pod_files()
+
+=item pollute()
+
+=item prefix()
+
+=item prereq_action_types()
+
+=item quiet()
+
+=item recommends()
+
+=item recurse_into()
+
+=item recursive_test_files()
+
+=item requires()
+
+=item scripts()
+
+=item use_rcfile()
+
+=item verbose()
+
+=item xs_files()
+
+=back
+
+
+=head1 AUTHOR
+
+Ken Williams <kwilliams@cpan.org>
+
+
+=head1 COPYRIGHT
+
+Copyright (c) 2001-2006 Ken Williams. All rights reserved.
+
+This library is free software; you can redistribute it and/or
+modify it under the same terms as Perl itself.
+
+
+=head1 SEE ALSO
+
+perl(1), L<Module::Build>(3), L<Module::Build::Authoring>(3),
+L<Module::Build::Cookbook>(3), L<ExtUtils::MakeMaker>(3), L<YAML>(3)
+
+F<META.yml> Specification:
+L<http://module-build.sourceforge.net/META-spec-v1.2.html>
+
+=cut
L<http://www.makemaker.org/wiki/index.cgi?ModuleBuildConversionGuide>.
-=head1 API
-
-I list here some of the most important methods in C<Module::Build>.
-Normally you won't need to deal with these methods unless you want to
-subclass C<Module::Build>. But since one of the reasons I created
-this module in the first place was so that subclassing is possible
-(and easy), I will certainly write more docs as the interface
-stabilizes.
-
-
-=head2 CONSTRUCTORS
-
-
-=over 4
-
-=item current()
-
-[version 0.20]
-
-This method returns a reasonable facsimile of the currently-executing
-C<Module::Build> object representing the current build. You can use
-this object to query its C<notes()> method, inquire about installed
-modules, and so on. This is a great way to share information between
-different parts of your build process. For instance, you can ask
-the user a question during C<perl Build.PL>, then use their answer
-during a regression test:
-
- # In Build.PL:
- my $color = $build->prompt("What is your favorite color?");
- $build->notes(color => $color);
-
- # In t/colortest.t:
- use Module::Build;
- my $build = Module::Build->current;
- my $color = $build->notes('color');
- ...
-
-The way the C<current()> method is currently implemented, there may be
-slight differences between the C<$build> object in Build.PL and the
-one in C<t/colortest.t>. It is our goal to minimize these differences
-in future releases of Module::Build, so please report any anomalies
-you find.
-
-One important caveat: in its current implementation, C<current()> will
-B<NOT> work correctly if you have changed out of the directory that
-C<Module::Build> was invoked from.
-
-=item new()
-
-[version 0.03]
-
-Creates a new Module::Build object. Arguments to the new() method are
-listed below. Most arguments are optional, but you must provide
-either the C<module_name> argument, or C<dist_name> and one of
-C<dist_version> or C<dist_version_from>. In other words, you must
-provide enough information to determine both a distribution name and
-version.
-
-
-=over 4
-
-=item add_to_cleanup
-
-[version 0.19]
-
-An array reference of files to be cleaned up when the C<clean> action
-is performed. See also the add_to_cleanup() method.
-
-=item auto_features
-
-[version 0.26]
-
-This parameter supports the setting of features (see
-L<feature($name)>) automatically based on a set of prerequisites. For
-instance, for a module that could optionally use either MySQL or
-PostgreSQL databases, you might use C<auto_features> like this:
-
- my $build = Module::Build->new
- (
- ...other stuff here...
- auto_features => {
- pg_support => {
- description => "Interface with Postgres databases",
- requires => { 'DBD::Pg' => 23.3,
- 'DateTime::Format::Pg' => 0 },
- },
- mysql_support => {
- description => "Interface with MySQL databases",
- requires => { 'DBD::mysql' => 17.9,
- 'DateTime::Format::MySQL' => 0 },
- },
- }
- );
-
-For each feature named, the required prerequisites will be checked, and
-if there are no failures, the feature will be enabled (set to C<1>).
-Otherwise the failures will be displayed to the user and the feature
-will be disabled (set to C<0>).
-
-See the documentation for L<requires> for the details of how
-requirements can be specified.
-
-=item autosplit
-
-[version 0.04]
-
-An optional C<autosplit> argument specifies a file which should be run
-through the C<Autosplit::autosplit()> function. If multiple files
-should be split, the argument may be given as an array of the files to
-split.
-
-In general I don't consider autosplitting a great idea, because it's
-not always clear that autosplitting achieves its intended performance
-benefits. It may even harm performance in environments like mod_perl,
-where as much as possible of a module's code should be loaded during
-startup.
-
-=item build_class
-
-[version 0.28]
-
-The Module::Build class or subclass to use in the build
-script. Defaults to "Module::Build" or the class name passed to or
-created by a call to C<subclass()>. This property is useful if you're
-writing a custom Module::Build subclass and have a bootstrapping
-problem--that is, your subclass requires modules that may not be
-installed when C<perl Build.PL> is executed, but you've listed in
-C<build_requires> so that they should be available when C<./Build> is
-executed.
-
-=item build_requires
-
-[version 0.07]
-
-Modules listed in this section are necessary to build and install the
-given module, but are not necessary for regular usage of it. This is
-actually an important distinction - it allows for tighter control over
-the body of installed modules, and facilitates correct dependency
-checking on binary/packaged distributions of the module.
-
-See the documentation for L<"PREREQUISITES"> for the details of how
-requirements can be specified.
-
-=item create_packlist
-
-If true, this parameter tells Module::Build to create a F<.packlist>
-file during the C<install> action, just like ExtUtils::MakeMaker does.
-The file is created in a subdirectory of the C<arch> installation
-location. It is used by some other tools (CPAN, CPANPLUS, etc.) for
-determining what files are part of an install.
-
-The default value is true. This parameter was introduced in
-Module::Build version 0.2609; previously no packlists were ever
-created by Module::Build.
-
-=item c_source
-
-[version 0.04]
-
-An optional C<c_source> argument specifies a directory which contains
-C source files that the rest of the build may depend on. Any C<.c>
-files in the directory will be compiled to object files. The
-directory will be added to the search path during the compilation and
-linking phases of any C or XS files.
-
-=item conflicts
-
-[version 0.07]
-
-Modules listed in this section conflict in some serious way with the
-given module. C<Module::Build> (or some higher-level tool) will
-refuse to install the given module if the given module/version is also
-installed.
-
-See the documentation for L<"PREREQUISITES"> for the details of how
-requirements can be specified.
-
-=item create_makefile_pl
-
-[version 0.19]
-
-This parameter lets you use Module::Build::Compat during the
-C<distdir> (or C<dist>) action to automatically create a Makefile.PL
-for compatibility with ExtUtils::MakeMaker. The parameter's value
-should be one of the styles named in the Module::Build::Compat
-documentation.
-
-=item create_readme
-
-[version 0.22]
-
-This parameter tells Module::Build to automatically create a F<README>
-file at the top level of your distribution. Currently it will simply
-use C<Pod::Text> (or C<Pod::Readme> if it's installed) on the file
-indicated by C<dist_version_from> and put the result in the F<README>
-file. This is by no means the only recommended style for writing a
-README, but it seems to be one common one used on the CPAN.
-
-If you generate a F<README> in this way, it's probably a good idea to
-create a separate F<INSTALL> file if that information isn't in the
-generated F<README>.
-
-=item dist_abstract
-
-[version 0.20]
-
-This should be a short description of the distribution. This is used
-when generating metadata for F<META.yml> and PPD files. If it is not
-given then C<Module::Build> looks in the POD of the module from which
-it gets the distribution's version. It looks for the first line
-matching C<$package\s-\s(.+)>, and uses the captured text as the
-abstract.
-
-=item dist_author
-
-[version 0.20]
-
-This should be something like "John Doe <jdoe@example.com>", or if
-there are multiple authors, an anonymous array of strings may be
-specified. This is used when generating metadata for F<META.yml> and
-PPD files. If this is not specified, then C<Module::Build> looks at
-the module from which it gets the distribution's version. If it finds
-a POD section marked "=head1 AUTHOR", then it uses the contents of
-this section.
-
-=item dist_name
-
-[version 0.11]
-
-Specifies the name for this distribution. Most authors won't need to
-set this directly, they can use C<module_name> to set C<dist_name> to
-a reasonable default. However, some agglomerative distributions like
-C<libwww-perl> or C<bioperl> have names that don't correspond directly
-to a module name, so C<dist_name> can be set independently.
-
-=item dist_version
-
-[version 0.11]
-
-Specifies a version number for the distribution. See C<module_name>
-or C<dist_version_from> for ways to have this set automatically from a
-C<$VERSION> variable in a module. One way or another, a version
-number needs to be set.
-
-=item dist_version_from
-
-[version 0.11]
-
-Specifies a file to look for the distribution version in. Most
-authors won't need to set this directly, they can use C<module_name>
-to set it to a reasonable default.
-
-The version is extracted from the specified file according to the same
-rules as C<ExtUtils::MakeMaker> and C<CPAN.pm>. It involves finding
-the first line that matches the regular expression
-
- /([\$*])(([\w\:\']*)\bVERSION)\b.*\=/
-
-eval()-ing that line, then checking the value of the C<$VERSION>
-variable. Quite ugly, really, but all the modules on CPAN depend on
-this process, so there's no real opportunity to change to something
-better.
-
-=item dynamic_config
-
-[version 0.07]
-
-A boolean flag indicating whether the F<Build.PL> file must be
-executed, or whether this module can be built, tested and installed
-solely from consulting its metadata file. The main reason to set this
-to a true value is that your module performs some dynamic
-configuration as part of its build/install process. If the flag is
-omitted, the F<META.yml> spec says that installation tools should
-treat it as 1 (true), because this is a safer way to behave.
-
-Currently C<Module::Build> doesn't actually do anything with this flag
-- it's up to higher-level tools like C<CPAN.pm> to do
-something useful with it. It can potentially bring lots of security,
-packaging, and convenience improvements.
-
-=item extra_compiler_flags
-
-=item extra_linker_flags
-
-[version 0.19]
-
-These parameters can contain array references (or strings, in which
-case they will be split into arrays) to pass through to the compiler
-and linker phases when compiling/linking C code. For example, to tell
-the compiler that your code is C++, you might do:
-
- my $build = Module::Build->new
- (
- module_name => 'Foo::Bar',
- extra_compiler_flags => ['-x', 'c++'],
- );
-
-To link your XS code against glib you might write something like:
-
- my $build = Module::Build->new
- (
- module_name => 'Foo::Bar',
- dynamic_config => 1,
- extra_compiler_flags => scalar `glib-config --cflags`,
- extra_linker_flags => scalar `glib-config --libs`,
- );
-
-=item get_options
-
-[version 0.26]
-
-You can pass arbitrary command line options to F<Build.PL> or
-F<Build>, and they will be stored in the Module::Build object and can
-be accessed via the C<args()> method. However, sometimes you want
-more flexibility out of your argument processing than this allows. In
-such cases, use the C<get_options> parameter to pass in a hash
-reference of argument specifications, and the list of arguments to
-F<Build.PL> or F<Build> will be processed according to those
-specifications before they're passed on to C<Module::Build>'s own
-argument processing.
-
-The supported option specification hash keys are:
-
-
-=over 4
-
-=item type
-
-The type of option. The types are those supported by Getopt::Long; consult
-its documentation for a complete list. Typical types are C<=s> for strings,
-C<+> for additive options, and C<!> for negatable options. If the
-type is not specified, it will be considered a boolean, i.e. no
-argument is taken and a value of 1 will be assigned when the option is
-encountered.
-
-=item store
-
-A reference to a scalar in which to store the value passed to the option.
-If not specified, the value will be stored under the option name in the
-hash returned by the C<args()> method.
-
-=item default
-
-A default value for the option. If no default value is specified and no option
-is passed, then the option key will not exist in the hash returned by
-C<args()>.
-
-=back
-
-
-You can combine references to your own variables or subroutines with
-unreferenced specifications, for which the result will also be stored in the
-hash returned by C<args()>. For example:
-
- my $loud = 0;
- my $build = Module::Build->new
- (
- module_name => 'Foo::Bar',
- get_options => {
- loud => { store => \$loud },
- dbd => { type => '=s' },
- quantity => { type => '+' },
- }
- );
-
- print STDERR "HEY, ARE YOU LISTENING??\n" if $loud;
- print "We'll use the ", $build->args('dbd'), " DBI driver\n";
- print "Are you sure you want that many?\n"
- if $build->args('quantity') > 2;
-
-The arguments for such a specification can be called like so:
-
- perl Build.PL --loud --dbd=DBD::pg --quantity --quantity --quantity
-
-B<WARNING:> Any option specifications that conflict with Module::Build's own
-options (defined by its properties) will throw an exception.
-
-Consult the Getopt::Long documentation for details on its usage.
-
-=item include_dirs
-
-[version 0.24]
-
-Specifies any additional directories in which to search for C header
-files. May be given as a string indicating a single directory, or as
-a list reference indicating multiple directories.
-
-=item install_path
-
-[version 0.19]
-
-You can set paths for individual installable elements by using the
-C<install_path> parameter:
-
- my $build = Module::Build->new
- (
- ...other stuff here...
- install_path => {
- lib => '/foo/lib',
- arch => '/foo/lib/arch',
- }
- );
-
-=item installdirs
-
-[version 0.19]
-
-Determines where files are installed within the normal perl hierarchy
-as determined by F<Config.pm>. Valid values are: C<core>, C<site>,
-C<vendor>. The default is C<site>. See
-L<Module::Build/"INSTALL PATHS">
-
-=item license
-
-[version 0.07]
-
-Specifies the licensing terms of your distribution. Valid options include:
-
-
-=over 4
-
-=item apache
-
-The distribution is licensed under the Apache Software License
-(http://opensource.org/licenses/apachepl.php).
-
-=item artistic
-
-The distribution is licensed under the Artistic License, as specified
-by the F<Artistic> file in the standard perl distribution.
-
-=item bsd
-
-The distribution is licensed under the BSD License
-(http://www.opensource.org/licenses/bsd-license.php).
-
-=item gpl
-
-The distribution is licensed under the terms of the Gnu General
-Public License (http://www.opensource.org/licenses/gpl-license.php).
-
-=item lgpl
-
-The distribution is licensed under the terms of the Gnu Lesser
-General Public License
-(http://www.opensource.org/licenses/lgpl-license.php).
-
-=item mit
-
-The distribution is licensed under the MIT License
-(http://opensource.org/licenses/mit-license.php).
-
-=item mozilla
-
-The distribution is licensed under the Mozilla Public
-License. (http://opensource.org/licenses/mozilla1.0.php or
-http://opensource.org/licenses/mozilla1.1.php)
-
-=item open_source
-
-The distribution is licensed under some other Open Source
-Initiative-approved license listed at
-http://www.opensource.org/licenses/ .
-
-=item perl
-
-The distribution may be copied and redistributed under the same terms
-as perl itself (this is by far the most common licensing option for
-modules on CPAN). This is a dual license, in which the user may
-choose between either the GPL or the Artistic license.
-
-=item restrictive
-
-The distribution may not be redistributed without special permission
-from the author and/or copyright holder.
-
-=item unrestricted
-
-The distribution is licensed under a license that is B<not> approved
-by www.opensource.org but that allows distribution without
-restrictions.
-
-=back
-
-
-Note that you must still include the terms of your license in your
-documentation - this field only lets automated tools figure out your
-licensing restrictions. Humans still need something to read. If you
-choose to provide this field, you should make sure that you keep it in
-sync with your written documentation if you ever change your licensing
-terms.
-
-It is a fatal error to use a license other than the ones mentioned
-above. This is not because I wish to impose licensing terms on you -
-please let me know if you would like another license option to be
-added to the list. You may also use a license type of C<unknown> if
-you don't wish to specify your terms (but this is usually not a good
-idea for you to do!).
-
-I just started out with a small set of licenses to keep things simple,
-figuring I'd let people with actual working knowledge in this area
-tell me what to do. So if that's you, drop me a line.
-
-=item meta_add
-
-[version 0.28]
-
-A hash of key/value pairs that should be added to the F<META.yml> file
-during the C<distmeta> action. Any existing entries with the same
-names will be overridden.
-
-=item meta_merge
-
-[version 0.28]
-
-A hash of key/value pairs that should be merged into the F<META.yml>
-file during the C<distmeta> action. Any existing entries with the
-same names will be overridden.
-
-The only difference between C<meta_add> and C<meta_merge> is their
-behavior on hash-valued and array-valued entries: C<meta_add> will
-completely blow away the existing hash or array value, but
-C<meta_merge> will merge the supplied data into the existing hash or
-array value.
-
-=item module_name
-
-[version 0.03]
-
-The C<module_name> is a shortcut for setting default values of
-C<dist_name> and C<dist_version_from>, reflecting the fact that the
-majority of CPAN distributions are centered around one "main" module.
-For instance, if you set C<module_name> to C<Foo::Bar>, then
-C<dist_name> will default to C<Foo-Bar> and C<dist_version_from> will
-default to C<lib/Foo/Bar.pm>. C<dist_version_from> will in turn be
-used to set C<dist_version>.
-
-Setting C<module_name> won't override a C<dist_*> parameter you
-specify explicitly.
-
-=item PL_files
-
-[version 0.06]
-
-An optional parameter specifying a set of C<.PL> files in your
-distribution. These will be run as Perl scripts prior to processing
-the rest of the files in your distribution. They are usually used as
-templates for creating other files dynamically, so that a file like
-C<lib/Foo/Bar.pm.PL> might create the file C<lib/Foo/Bar.pm>.
-
-The files are specified with the C<.PL> files as hash keys, and the
-file(s) they generate as hash values, like so:
-
- my $build = Module::Build->new
- (
- module_name => 'Foo::Bar',
- ...
- PL_files => { 'lib/Foo/Bar.pm.PL' => 'lib/Foo/Bar.pm' },
- );
-
-Note that the path specifications are I<always> given in Unix-like
-format, not in the style of the local system.
-
-If your C<.PL> scripts don't create any files, or if they create files
-with unexpected names, or even if they create multiple files, you can
-indicate that so that Module::Build can properly handle these created
-files:
-
- PL_files => {
- 'lib/Foo/Bar.pm.PL' => 'lib/Foo/Bar.pm',
- 'lib/something.PL' => ['/lib/something', '/lib/else'],
- 'lib/funny.PL' => [],
- }
-
-=item pm_files
-
-[version 0.19]
-
-An optional parameter specifying the set of C<.pm> files in this
-distribution, specified as a hash reference whose keys are the files'
-locations in the distributions, and whose values are their logical
-locations based on their package name, i.e. where they would be found
-in a "normal" Module::Build-style distribution. This parameter is
-mainly intended to support alternative layouts of files.
-
-For instance, if you have an old-style MakeMaker distribution for a
-module called C<Foo::Bar> and a F<Bar.pm> file at the top level of the
-distribution, you could specify your layout in your C<Build.PL> like
-this:
-
- my $build = Module::Build->new
- (
- module_name => 'Foo::Bar',
- ...
- pm_files => { 'Bar.pm' => 'lib/Foo/Bar.pm' },
- );
-
-Note that the values should include C<lib/>, because this is where
-they would be found in a "normal" Module::Build-style distribution.
-
-Note also that the path specifications are I<always> given in
-Unix-like format, not in the style of the local system.
-
-=item pod_files
-
-[version 0.19]
-
-Just like C<pm_files>, but used for specifying the set of C<.pod>
-files in your distribution.
-
-=item recommends
-
-[version 0.08]
-
-This is just like the C<requires> argument, except that modules listed
-in this section aren't essential, just a good idea. We'll just print
-a friendly warning if one of these modules aren't found, but we'll
-continue running.
-
-If a module is recommended but not required, all tests should still
-pass if the module isn't installed. This may mean that some tests
-may be skipped if recommended dependencies aren't present.
-
-Automated tools like CPAN.pm should inform the user when recommended
-modules aren't installed, and it should offer to install them if it
-wants to be helpful.
-
-See the documentation for L<"PREREQUISITES"> for the details of how
-requirements can be specified.
-
-=item recursive_test_files
-
-[version 0.28]
-
-Normally, C<Module::Build> does not search subdirectories when looking
-for tests to run. When this options is set it will search recursively
-in all subdirectories of the standard 't' test directory.
-
-=item requires
-
-[version 0.07]
-
-An optional C<requires> argument specifies any module prerequisites
-that the current module depends on.
-
-One note: currently C<Module::Build> doesn't actually I<require> the
-user to have dependencies installed, it just strongly urges. In the
-future we may require it. There's also a C<recommends> section for
-things that aren't absolutely required.
-
-Automated tools like CPAN.pm should refuse to install a module if one
-of its dependencies isn't satisfied, unless a "force" command is given
-by the user. If the tools are helpful, they should also offer to
-install the dependencies.
-
-A synonym for C<requires> is C<prereq>, to help succour people
-transitioning from C<ExtUtils::MakeMaker>. The C<requires> term is
-preferred, but the C<prereq> term will remain valid in future
-distributions.
-
-See the documentation for L<"PREREQUISITES"> for the details of how
-requirements can be specified.
-
-=item script_files
-
-[version 0.18]
-
-An optional parameter specifying a set of files that should be
-installed as executable perl scripts when the module is installed.
-May be given as an array reference of the files, or as a hash
-reference whose keys are the files (and whose values will currently be
-ignored).
-
-The default is to install no script files - in other words, there is
-no default location where Module::Build will look for script files to
-install.
-
-For backward compatibility, you may use the parameter C<scripts>
-instead of C<script_files>. Please consider this usage deprecated,
-though it will continue to exist for several version releases.
-
-=item sign
-
-[version 0.16]
-
-If a true value is specified for this parameter, C<Module::Signature>
-will be used (via the 'distsign' action) to create a SIGNATURE file
-for your distribution during the 'distdir' action, and to add the
-SIGNATURE file to the MANIFEST (therefore, don't add it yourself).
-
-The default value is false. In the future, the default may change to
-true if you have C<Module::Signature> installed on your system.
-
-=item test_files
-
-[version 0.23]
-
-An optional parameter specifying a set of files that should be used as
-C<Test::Harness>-style regression tests to be run during the C<test>
-action. May be given as an array reference of the files, or as a hash
-reference whose keys are the files (and whose values will currently be
-ignored). If the argument is given as a single string (not in an
-array reference), that string will be treated as a C<glob()> pattern
-specifying the files to use.
-
-The default is to look for a F<test.pl> script in the top-level
-directory of the distribution, and any files matching the glob pattern
-C<*.t> in the F<t/> subdirectory. If the C<recursive_test_files>
-property is true, then the C<t/> directory will be scanned recursively
-for C<*.t> files.
-
-=item xs_files
-
-[version 0.19]
-
-Just like C<pm_files>, but used for specifying the set of C<.xs>
-files in your distribution.
-
-=back
-
-
-=item new_from_context(%args)
-
-[version 0.28]
-
-When called from a directory containing a F<Build.PL> script and a
-F<META.yml> file (in other words, the base directory of a
-distribution), this method will run the F<Build.PL> and return the
-resulting C<Module::Build> object to the caller. Any key-value
-arguments given to C<new_from_context()> are essentially like
-command line arguments given to the F<Build.PL> script, so for example
-you could pass C<< verbose => 1 >> to this method to turn on
-verbosity.
-
-=item resume()
-
-[version 0.03]
-
-You'll probably never call this method directly, it's only called from
-the auto-generated C<Build> script. The C<new()> method is only
-called once, when the user runs C<perl Build.PL>. Thereafter, when
-the user runs C<Build test> or another action, the C<Module::Build>
-object is created using the C<resume()> method to re-instantiate with
-the settings given earlier to C<new()>.
-
-=item subclass()
-
-[version 0.06]
-
-This creates a new C<Module::Build> subclass on the fly, as described
-in the L<"SUBCLASSING"> section. The caller must provide either a
-C<class> or C<code> parameter, or both. The C<class> parameter
-indicates the name to use for the new subclass, and defaults to
-C<MyModuleBuilder>. The C<code> parameter specifies Perl code to use
-as the body of the subclass.
-
-=back
-
-
-=head2 METHODS
-
-
-=over 4
-
-=item add_build_element($type)
-
-[version 0.26]
-
-Adds a new type of entry to the build process. Accepts a single
-string specifying its type-name. There must also be a method defined
-to process things of that type, e.g. if you add a build element called
-C<'foo'>, then you must also define a method called
-C<process_foo_files()>.
-
-See also L<Module::Build::Cookbook/"Adding new file types to the build process">.
-
-=item add_to_cleanup(@files)
-
-[version 0.03]
-
-You may call C<< $self->add_to_cleanup(@patterns) >> to tell
-C<Module::Build> that certain files should be removed when the user
-performs the C<Build clean> action. The arguments to the method are
-patterns suitable for passing to Perl's C<glob()> function, specified
-in either Unix format or the current machine's native format. It's
-usually convenient to use Unix format when you hard-code the filenames
-(e.g. in F<Build.PL>) and the native format when the names are
-programmatically generated (e.g. in a testing script).
-
-I decided to provide a dynamic method of the C<$build> object, rather
-than just use a static list of files named in the F<Build.PL>, because
-these static lists can get difficult to manage. I usually prefer to
-keep the responsibility for registering temporary files close to the
-code that creates them.
-
-=item args()
-
-[version 0.26]
-
- my $args_href = $build->args;
- my %args = $build->args;
- my $arg_value = $build->args($key);
- $build->args($key, $value);
-
-This method is the preferred interface for retrieving the arguments passed via
-command line options to F<Build.PL> or F<Build>, minus the Module-Build
-specific options.
-
-When called in in a scalar context with no arguments, this method returns a
-reference to the hash storing all of the arguments; in an array context, it
-returns the hash itself. When passed a single argument, it returns the value
-stored in the args hash for that option key. When called with two arguments,
-the second argument is assigned to the args hash under the key passed as the
-first argument.
-
-=item autosplit_file($from, $to)
-
-[version 0.28]
-
-Invokes the C<AutoSplit> module on the C<$from> file, sending the
-output to the C<lib/auto> directory inside C<$to>. C<$to> is
-typically the C<blib/> directory.
-
-=item base_dir()
-
-[version 0.14]
-
-Returns a string containing the root-level directory of this build,
-i.e. where the C<Build.PL> script and the C<lib> directory can be
-found. This is usually the same as the current working directory,
-because the C<Build> script will C<chdir()> into this directory as
-soon as it begins execution.
-
-=item build_requires()
-
-[version 0.21]
-
-Returns a hash reference indicating the C<build_requires>
-prerequisites that were passed to the C<new()> method.
-
-=item check_installed_status($module, $version)
-
-[version 0.11]
-
-This method returns a hash reference indicating whether a version
-dependency on a certain module is satisfied. The C<$module> argument
-is given as a string like C<"Data::Dumper"> or C<"perl">, and the
-C<$version> argument can take any of the forms described in L<requires>
-above. This allows very fine-grained version checking.
-
-The returned hash reference has the following structure:
-
- {
- ok => $whether_the_dependency_is_satisfied,
- have => $version_already_installed,
- need => $version_requested, # Same as incoming $version argument
- message => $informative_error_message,
- }
-
-If no version of C<$module> is currently installed, the C<have> value
-will be the string C<< "<none>" >>. Otherwise the C<have> value will
-simply be the version of the installed module. Note that this means
-that if C<$module> is installed but doesn't define a version number,
-the C<have> value will be C<undef> - this is why we don't use C<undef>
-for the case when C<$module> isn't installed at all.
-
-This method may be called either as an object method
-(C<< $build->check_installed_status($module, $version) >>)
-or as a class method
-(C<< Module::Build->check_installed_status($module, $version) >>).
-
-=item check_installed_version($module, $version)
-
-[version 0.05]
-
-Like C<check_installed_status()>, but simply returns true or false
-depending on whether module C<$module> satisfies the dependency
-C<$version>.
-
-If the check succeeds, the return value is the actual version of
-C<$module> installed on the system. This allows you to do the
-following:
-
- my $installed = $build->check_installed_version('DBI', '1.15');
- if ($installed) {
- print "Congratulations, version $installed of DBI is installed.\n";
- } else {
- die "Sorry, you must install DBI.\n";
- }
-
-If the check fails, we return false and set C<$@> to an informative
-error message.
-
-If C<$version> is any non-true value (notably zero) and any version of
-C<$module> is installed, we return true. In this case, if C<$module>
-doesn't define a version, or if its version is zero, we return the
-special value "0 but true", which is numerically zero, but logically
-true.
-
-In general you might prefer to use C<check_installed_status> if you
-need detailed information, or this method if you just need a yes/no
-answer.
-
-=item compare_versions($v1, $op, $v2)
-
-[version 0.28]
-
-Compares two module versions C<$v1> and C<$v2> using the operator
-C<$op>, which should be one of Perl's numeric operators like C<!=> or
-C<< >= >> or the like. We do at least a halfway-decent job of
-handling versions that aren't strictly numeric, like C<0.27_02>, but
-exotic stuff will likely cause problems.
-
-In the future, the guts of this method might be replaced with a call
-out to C<version.pm>.
-
-=item config()
-
-[version 0.22]
-
-Returns a hash reference containing the C<Config.pm> hash, including
-any changes the author or user has specified. This is a reference to
-the actual internal hash we use, so you probably shouldn't modify
-stuff there.
-
-=item config_data($name)
-
-=item config_data($name => $value)
-
-[version 0.26]
-
-With a single argument, returns the value of the configuration
-variable C<$name>. With two arguments, sets the given configuration
-variable to the given value. The value may be any perl scalar that's
-serializable with C<Data::Dumper>. For instance, if you write a
-module that can use a MySQL or PostgreSQL back-end, you might create
-configuration variables called C<mysql_connect> and
-C<postgres_connect>, and set each to an array of connection parameters
-for C<< DBI->connect() >>.
-
-Configuration values set in this way using the Module::Build object
-will be available for querying during the build/test process and after
-installation via the generated C<...::ConfigData> module, as
-C<< ...::ConfigData->config($name) >>.
-
-The C<feature()> and C<config_data()> methods represent
-Module::Build's main support for configuration of installed modules.
-See also L<SAVING CONFIGURATION INFORMATION>.
-
-=item conflicts()
-
-[version 0.21]
-
-Returns a hash reference indicating the C<conflicts> prerequisites
-that were passed to the C<new()> method.
-
-=item contains_pod($file)
-
-[version 0.20]
-
-[Deprecated] Please see L<Module::Build::ModuleInfo> instead.
-
-Returns true if the given file appears to contain POD documentation.
-Currently this checks whether the file has a line beginning with
-'=pod', '=head', or '=item', but the exact semantics may change in the
-future.
-
-=item copy_if_modified(%parameters)
-
-[version 0.19]
-
-Takes the file in the C<from> parameter and copies it to the file in
-the C<to> parameter, or the directory in the C<to_dir> parameter, if
-the file has changed since it was last copied (or if it doesn't exist
-in the new location). By default the entire directory structure of
-C<from> will be copied into C<to_dir>; an optional C<flatten>
-parameter will copy into C<to_dir> without doing so.
-
-Returns the path to the destination file, or C<undef> if nothing
-needed to be copied.
-
-Any directories that need to be created in order to perform the
-copying will be automatically created.
-
-=item create_build_script()
-
-[version 0.05]
-
-Creates an executable script called C<Build> in the current directory
-that will be used to execute further user actions. This script is
-roughly analogous (in function, not in form) to the Makefile created
-by C<ExtUtils::MakeMaker>. This method also creates some temporary
-data in a directory called C<_build/>. Both of these will be removed
-when the C<realclean> action is performed.
-
-=item current_action()
-
-[version 0.28]
-
-Returns the name of the currently-running action, such as "build" or
-"test". This action is not necessarily the action that was originally
-invoked by the user. For example, if the user invoked the "test"
-action, current_action() would initially return "test". However,
-action "test" depends on action "code", so current_action() will
-return "code" while that dependency is being executed. Once that
-action has completed, current_action() will again return "test".
-
-If you need to know the name of the original action invoked by the
-user, see L<invoked_action()> below.
-
-=item depends_on(@actions)
-
-[version 0.28]
-
-Invokes the named action or list of actions in sequence. Using this
-method is preferred to calling the action explicitly because it
-performs some internal record-keeping, and it ensures that the same
-action is not invoked multiple times (note: in future versions of
-Module::Build it's conceivable that this run-only-once mechanism will
-be changed to something more intelligent).
-
-Note that the name of this method is something of a misnomer; it
-should really be called something like
-C<invoke_actions_unless_already_invoked()> or something, but for
-better or worse (perhaps better!) we were still thinking in
-C<make>-like dependency terms when we created this method.
-
-See also C<dispatch()>. The main distinction between the two is that
-C<depends_on()> is meant to call an action from inside another action,
-whereas C<dispatch()> is meant to set the very top action in motion.
-
-=item dir_contains($first_dir, $second_dir)
-
-[version 0.28]
-
-Returns true if the first directory logically contains the second
-directory. This is just a convenience function because C<File::Spec>
-doesn't really provide an easy way to figure this out (but
-C<Path::Class> does...).
-
-=item dispatch($action, %args)
-
-[version 0.03]
-
-Invokes the build action C<$action>. Optionally, a list of options
-and their values can be passed in. This is equivalent to invoking an
-action at the command line, passing in a list of options.
-
-Custom options that have not been registered must be passed in as a
-hash reference in a key named "args":
-
- $build->dispatch('foo', verbose => 1, args => { my_option => 'value' });
-
-This method is intended to be used to programmatically invoke build
-actions, e.g. by applications controlling Module::Build-based builds
-rather than by subclasses.
-
-See also C<depends_on()>. The main distinction between the two is that
-C<depends_on()> is meant to call an action from inside another action,
-whereas C<dispatch()> is meant to set the very top action in motion.
-
-=item dist_dir()
-
-[version 0.28]
-
-Returns the name of the directory that will be created during the
-C<dist> action. The name is derived from the C<dist_name> and
-C<dist_version> properties.
-
-=item dist_name()
-
-[version 0.21]
-
-Returns the name of the current distribution, as passed to the
-C<new()> method in a C<dist_name> or modified C<module_name>
-parameter.
-
-=item dist_version()
-
-[version 0.21]
-
-Returns the version of the current distribution, as determined by the
-C<new()> method from a C<dist_version>, C<dist_version_from>, or
-C<module_name> parameter.
-
-=item do_system($cmd, @args)
-
-[version 0.21]
-
-This is a fairly simple wrapper around Perl's C<system()> built-in
-command. Given a command and an array of optional arguments, this
-method will print the command to C<STDOUT>, and then execute it using
-Perl's C<system()>. It returns true or false to indicate success or
-failure (the opposite of how C<system()> works, but more intuitive).
-
-Note that if you supply a single argument to C<do_system()>, it
-will/may be processed by the systems's shell, and any special
-characters will do their special things. If you supply multiple
-arguments, no shell will get involved and the command will be executed
-directly.
-
-=item feature($name)
-
-=item feature($name => $value)
-
-[version 0.26]
-
-With a single argument, returns true if the given feature is set.
-With two arguments, sets the given feature to the given boolean value.
-In this context, a "feature" is any optional functionality of an
-installed module. For instance, if you write a module that could
-optionally support a MySQL or PostgreSQL backend, you might create
-features called C<mysql_support> and C<postgres_support>, and set them
-to true/false depending on whether the user has the proper databases
-installed and configured.
-
-Features set in this way using the Module::Build object will be
-available for querying during the build/test process and after
-installation via the generated C<...::ConfigData> module, as
-C<< ...::ConfigData->feature($name) >>.
-
-The C<feature()> and C<config_data()> methods represent
-Module::Build's main support for configuration of installed modules.
-See also L<SAVING CONFIGURATION INFORMATION>.
-
-=item have_c_compiler()
-
-[version 0.21]
-
-Returns true if the current system seems to have a working C compiler.
-We currently determine this by attempting to compile a simple C source
-file and reporting whether the attempt was successful.
-
-=item install_destination($type)
-
-[version 0.28]
-
-Returns the directory in which items of type C<$type> (e.g. C<lib>,
-C<arch>, C<bin>, or anything else returned by the C<install_types()>
-method) will be installed during the C<install> action. Any settings
-for C<install_path>, C<install_base>, and C<prefix> are taken into
-account when determining the return value.
-
-=item install_path()
-
-=item install_path($type)
-
-=item install_path($type => $path)
-
-[version 0.28]
-
-Set or retrieve paths for specific installable elements. This is
-useful when you want to examine any explicit install paths specified
-by the user on the command line, or if you want to set the install
-path for a specific installable element based on another attribute
-like C<install_base()>.
-
-With no argument, it returns a reference to a hash containing all
-elements and their respective values. This hash should not be modified
-directly; use the multi-argument below form to change values.
-
-The single argument form returns the value associated with the
-element C<$type>.
-
-The multi-argument form allows you to set the paths for one or more
-element types. The return value is undefined.
-
-=item install_types()
-
-[version 0.28]
-
-Returns a list of installable types that this build knows about.
-These types each correspond to the name of a directory in F<blib/>,
-and the list usually includes items such as C<lib>, C<arch>, C<bin>,
-C<script>, C<libdoc>, C<bindoc>, and if HTML documentation is to be
-built, C<libhtml> and C<binhtml>. Other user-defined types may also
-exist.
-
-=item invoked_action()
-
-[version 0.28]
-
-This is the name of the original action invoked by the user. This
-value is set when the user invokes F<Build.PL>, the F<Build> script,
-or programatically through the L<dispatch()> method. It does not
-change as sub-actions are executed as dependencies are evaluated.
-
-To get the name of the currently executing dependency, see
-L<current_action()> above.
-
-=item notes()
-
-=item notes($key)
-
-=item notes($key => $value)
-
-[version 0.20]
-
-The C<notes()> value allows you to store your own persistent
-information about the build, and to share that information among
-different entities involved in the build. See the example in the
-C<current()> method.
-
-The C<notes()> method is essentally a glorified hash access. With no
-arguments, C<notes()> returns the entire hash of notes. With one argument,
-C<notes($key)> returns the value associated with the given key. With two
-arguments, C<notes($key, $value)> sets the value associated with the given key
-to C<$value> and returns the new value.
-
-The lifetime of the C<notes> data is for "a build" - that is, the
-C<notes> hash is created when C<perl Build.PL> is run (or when the
-C<new()> method is run, if the Module::Build Perl API is being used
-instead of called from a shell), and lasts until C<perl Build.PL> is
-run again or the C<clean> action is run.
-
-=item orig_dir()
-
-[version 0.28]
-
-Returns a string containing the working directory that was in effect
-before the F<Build> script chdir()-ed into the C<base_dir>. This
-might be useful for writing wrapper tools that might need to chdir()
-back out.
-
-=item os_type()
-
-[version 0.04]
-
-If you're subclassing Module::Build and some code needs to alter its
-behavior based on the current platform, you may only need to know
-whether you're running on Windows, Unix, MacOS, VMS, etc., and not the
-fine-grained value of Perl's C<$^O> variable. The C<os_type()> method
-will return a string like C<Windows>, C<Unix>, C<MacOS>, C<VMS>, or
-whatever is appropriate. If you're running on an unknown platform, it
-will return C<undef> - there shouldn't be many unknown platforms
-though.
-
-=item prepare_metadata()
-
-[version 0.28]
-
-This method is provided for authors to override to customize the
-fields of F<META.yml>. It is passed a YAML::Node node object which can
-be modified as desired and then returned. E.g.
-
- package My::Builder;
- use base 'Module::Build';
-
- sub prepare_metadata {
- my $self = shift;
- my $node = $self->SUPER::prepare_metadata( shift );
- $node->{custom_field} = 'foo';
- return $node;
- }
-
-=item prereq_failures()
-
-[version 0.11]
-
-Returns a data structure containing information about any failed
-prerequisites (of any of the types described above), or C<undef> if
-all prerequisites are met.
-
-The data structure returned is a hash reference. The top level keys
-are the type of prerequisite failed, one of "requires",
-"build_requires", "conflicts", or "recommends". The associated values
-are hash references whose keys are the names of required (or
-conflicting) modules. The associated values of those are hash
-references indicating some information about the failure. For example:
-
- {
- have => '0.42',
- need => '0.59',
- message => 'Version 0.42 is installed, but we need version 0.59',
- }
-
-or
-
- {
- have => '<none>',
- need => '0.59',
- message => 'Prerequisite Foo isn't installed',
- }
-
-This hash has the same structure as the hash returned by the
-C<check_installed_status()> method, except that in the case of
-"conflicts" dependencies we change the "need" key to "conflicts" and
-construct a proper message.
-
-Examples:
-
- # Check a required dependency on Foo::Bar
- if ( $build->prereq_failures->{requires}{Foo::Bar} ) { ...
-
- # Check whether there were any failures
- if ( $build->prereq_failures ) { ...
-
- # Show messages for all failures
- my $failures = $build->prereq_failures;
- while (my ($type, $list) = each %$failures) {
- while (my ($name, $hash) = each %$list) {
- print "Failure for $name: $hash->{message}\n";
- }
- }
-
-=item prereq_report()
-
-[version 0.28]
-
-Returns a human-readable (table-form) string showing all
-prerequisites, the versions required, and the versions actually
-installed. This can be useful for reviewing the configuration of your
-system prior to a build, or when compiling data to send for a bug
-report. The C<prereq_report> action is just a thin wrapper around the
-C<prereq_report()> method.
-
-=item prompt($message, $default)
-
-[version 0.12]
-
-Asks the user a question and returns their response as a string. The
-first argument specifies the message to display to the user (for
-example, C<"Where do you keep your money?">). The second argument,
-which is optional, specifies a default answer (for example,
-C<"wallet">). The user will be asked the question once.
-
-If C<prompt()> detects that it is not running interactively and there
-is nothing on STDIN or if the PERL_MM_USE_DEFAULT environment variable
-is set to true, the $default will be used without prompting. This
-prevents automated processes from blocking on user input.
-
-If no $default is provided an empty string will be used instead.
-
-This method may be called as a class or object method.
-
-=item recommends()
-
-[version 0.21]
-
-Returns a hash reference indicating the C<recommends> prerequisites
-that were passed to the C<new()> method.
-
-=item requires()
-
-[version 0.21]
-
-Returns a hash reference indicating the C<requires> prerequisites that
-were passed to the C<new()> method.
-
-=item rscan_dir($dir, $pattern)
-
-[version 0.28]
-
-Uses C<File::Find> to traverse the directory C<$dir>, returning a
-reference to an array of entries matching C<$pattern>. C<$pattern>
-may either be a regular expression (using C<qr//> or just a plain
-string), or a reference to a subroutine that will return true for
-wanted entries. If C<$pattern> is not given, all entries will be
-returned.
-
-Examples:
-
- # All the *.pm files in lib/
- $m->rscan_dir('lib', qr/\.pm$/)
-
- # All the files in blib/ that aren't *.html files
- $m->rscan_dir('blib', sub {-f $_ and not /\.html$/});
-
- # All the files in t/
- $m->rscan_dir('t');
-
-=item runtime_params()
-
-=item runtime_params($key)
-
-[version 0.28]
-
-The C<runtime_params()> method stores the values passed on the command line
-for valid properties (that is, any command line options for which
-C<valid_property()> returns a true value). The value on the command line may
-override the default value for a property, as well as any value specified in a
-call to C<new()>. This allows you to programmatically tell if C<perl Build.PL>
-or any execution of C<./Build> had command line options specified that
-override valid properties.
-
-The C<runtime_params()> method is essentally a glorified read-only hash. With
-no arguments, C<runtime_params()> returns the entire hash of properties
-specified on the command line. With one argument, C<runtime_params($key)>
-returns the value associated with the given key.
-
-The lifetime of the C<runtime_params> data is for "a build" - that is, the
-C<runtime_params> hash is created when C<perl Build.PL> is run (or when the
-C<new()> method is called, if the Module::Build Perl API is being used instead
-of called from a shell), and lasts until C<perl Build.PL> is run again or the
-C<clean> action is run.
-
-=item script_files()
-
-[version 0.18]
-
-Returns a hash reference whose keys are the perl script files to be
-installed, if any. This corresponds to the C<script_files> parameter to the
-C<new()> method. With an optional argument, this parameter may be set
-dynamically.
-
-For backward compatibility, the C<scripts()> method does exactly the
-same thing as C<script_files()>. C<scripts()> is deprecated, but it
-will stay around for several versions to give people time to
-transition.
-
-=item up_to_date($source_file, $derived_file)
-
-=item up_to_date(\@source_files, \@derived_files)
-
-[version 0.20]
-
-This method can be used to compare a set of source files to a set of
-derived files. If any of the source files are newer than any of the
-derived files, it returns false. Additionally, if any of the derived
-files do not exist, it returns false. Otherwise it returns true.
-
-The arguments may be either a scalar or an array reference of file
-names.
-
-=item y_n($message, $default)
-
-[version 0.12]
-
-Asks the user a yes/no question using C<prompt()> and returns true or
-false accordingly. The user will be asked the question repeatedly
-until they give an answer that looks like "yes" or "no".
-
-The first argument specifies the message to display to the user (for
-example, C<"Shall I invest your money for you?">), and the second
-argument specifies the default answer (for example, C<"y">).
-
-Note that the default is specified as a string like C<"y"> or C<"n">,
-and the return value is a Perl boolean value like 1 or 0. I thought
-about this for a while and this seemed like the most useful way to do
-it.
-
-This method may be called as a class or object method.
-
-=back
-
-
-=head2 Autogenerated Accessors
-
-In addition to the aforementioned methods, there are also some get/set
-accessor methods for the following properties:
-
-=over 4
-
-=item PL_files()
-
-=item autosplit()
-
-=item base_dir()
-
-=item bindoc_dirs()
-
-=item blib()
-
-=item build_bat()
-
-=item build_class()
-
-=item build_elements()
-
-=item build_requires()
-
-=item build_script()
-
-=item c_source()
-
-=item config()
-
-=item config_dir()
-
-=item conflicts()
-
-=item create_makefile_pl()
-
-=item create_packlist()
-
-=item create_readme()
-
-=item debugger()
-
-=item destdir()
-
-=item get_options()
-
-=item html_css()
-
-=item include_dirs()
-
-=item install_base()
-
-=item install_path()
-
-=item install_sets()
-
-=item installdirs()
-
-=item libdoc_dirs()
-
-=item license()
-
-=item magic_number()
-
-=item mb_version()
-
-=item meta_add()
-
-=item meta_merge()
-
-=item metafile()
-
-=item module_name()
-
-=item orig_dir()
-
-=item original_prefix()
-
-=item perl()
+=head1 STRUCTURE
-=item pm_files()
+Module::Build creates a class hierarchy conducive to customization.
+Here is the parent-child class hierarchy in classy ASCII art:
-=item pod_files()
+ /--------------------\
+ | Your::Parent | (If you subclass Module::Build)
+ \--------------------/
+ |
+ |
+ /--------------------\ (Doesn't define any functionality
+ | Module::Build | of its own - just figures out what
+ \--------------------/ other modules to load.)
+ |
+ |
+ /-----------------------------------\ (Some values of $^O may
+ | Module::Build::Platform::$^O | define specialized functionality.
+ \-----------------------------------/ Otherwise it's ...::Default, a
+ | pass-through class.)
+ |
+ /--------------------------\
+ | Module::Build::Base | (Most of the functionality of
+ \--------------------------/ Module::Build is defined here.)
-=item pollute()
-=item prefix()
+=head1 SUBCLASSING
-=item prereq_action_types()
+Right now, there are two ways to subclass Module::Build. The first
+way is to create a regular module (in a C<.pm> file) that inherits
+from Module::Build, and use that module's class instead of using
+Module::Build directly:
-=item quiet()
+ ------ in Build.PL: ----------
+ #!/usr/bin/perl
-=item recommends()
+ use lib q(/nonstandard/library/path);
+ use My::Builder; # Or whatever you want to call it
-=item recurse_into()
+ my $build = My::Builder->new
+ (
+ module_name => 'Foo::Bar', # All the regular args...
+ license => 'perl',
+ dist_author => 'A N Other <me@here.net.au>',
+ requires => { Carp => 0 }
+ );
+ $build->create_build_script;
-=item recursive_test_files()
+This is relatively straightforward, and is the best way to do things
+if your My::Builder class contains lots of code. The
+C<create_build_script()> method will ensure that the current value of
+C<@INC> (including the C</nonstandard/library/path>) is propogated to
+the Build script, so that My::Builder can be found when running build
+actions.
-=item requires()
+For very small additions, Module::Build provides a C<subclass()>
+method that lets you subclass Module::Build more conveniently, without
+creating a separate file for your module:
-=item scripts()
+ ------ in Build.PL: ----------
+ #!/usr/bin/perl
-=item use_rcfile()
+ use Module::Build;
+ my $class = Module::Build->subclass
+ (
+ class => 'My::Builder',
+ code => q{
+ sub ACTION_foo {
+ print "I'm fooing to death!\n";
+ }
+ },
+ );
-=item verbose()
+ my $build = $class->new
+ (
+ module_name => 'Foo::Bar', # All the regular args...
+ license => 'perl',
+ dist_author => 'A N Other <me@here.net.au>',
+ requires => { Carp => 0 }
+ );
+ $build->create_build_script;
-=item xs_files()
+Behind the scenes, this actually does create a C<.pm> file, since the
+code you provide must persist after Build.PL is run if it is to be
+very useful.
-=back
+See also the documentation for the L<Module::Build::API/"subclass()">
+method.
=head1 PREREQUISITES
script's documentation, for more information.
+=head1 STARTING MODULE DEVELOPMENT
+
+When starting development on a new module, it's rarely worth your time
+to create a tree of all the files by hand. Some automatic
+module-creators are available: the oldest is C<h2xs>, which has
+shipped with perl itself for a long time. Its name reflects the fact
+that modules were originally conceived of as a way to wrap up a C
+library (thus the C<h> part) into perl extensions (thus the C<xs>
+part).
+
+These days, C<h2xs> has largely been superseded by modules like
+C<ExtUtils::ModuleMaker>, C<Module::Starter>, and C<Module::Maker>.
+They have varying degrees of support for C<Module::Build>.
+
+
=head1 AUTOMATION
One advantage of Module::Build is that since it's implemented as Perl
C<Build> script.
-=head1 STRUCTURE
-
-Module::Build creates a class hierarchy conducive to customization.
-Here is the parent-child class hierarchy in classy ASCII art:
-
- /--------------------\
- | Your::Parent | (If you subclass Module::Build)
- \--------------------/
- |
- |
- /--------------------\ (Doesn't define any functionality
- | Module::Build | of its own - just figures out what
- \--------------------/ other modules to load.)
- |
- |
- /-----------------------------------\ (Some values of $^O may
- | Module::Build::Platform::$^O | define specialized functionality.
- \-----------------------------------/ Otherwise it's ...::Default, a
- | pass-through class.)
- |
- /--------------------------\
- | Module::Build::Base | (Most of the functionality of
- \--------------------------/ Module::Build is defined here.)
-
-
-=head1 SUBCLASSING
-
-Right now, there are two ways to subclass Module::Build. The first
-way is to create a regular module (in a C<.pm> file) that inherits
-from Module::Build, and use that module's class instead of using
-Module::Build directly:
-
- ------ in Build.PL: ----------
- #!/usr/bin/perl
-
- use lib q(/nonstandard/library/path);
- use My::Builder; # Or whatever you want to call it
-
- my $build = My::Builder->new
- (
- module_name => 'Foo::Bar', # All the regular args...
- license => 'perl',
- dist_author => 'A N Other <me@here.net.au>',
- requires => { Carp => 0 }
- );
- $build->create_build_script;
-
-This is relatively straightforward, and is the best way to do things
-if your My::Builder class contains lots of code. The
-C<create_build_script()> method will ensure that the current value of
-C<@INC> (including the C</nonstandard/library/path>) is propogated to
-the Build script, so that My::Builder can be found when running build
-actions.
-
-For very small additions, Module::Build provides a C<subclass()>
-method that lets you subclass Module::Build more conveniently, without
-creating a separate file for your module:
-
- ------ in Build.PL: ----------
- #!/usr/bin/perl
-
- use Module::Build;
- my $class = Module::Build->subclass
- (
- class => 'My::Builder',
- code => q{
- sub ACTION_foo {
- print "I'm fooing to death!\n";
- }
- },
- );
-
- my $build = $class->new
- (
- module_name => 'Foo::Bar', # All the regular args...
- license => 'perl',
- dist_author => 'A N Other <me@here.net.au>',
- requires => { Carp => 0 }
- );
- $build->create_build_script;
-
-Behind the scenes, this actually does create a C<.pm> file, since the
-code you provide must persist after Build.PL is run if it is to be
-very useful.
-
-See also the documentation for the C<subclass()> method.
-
-
-=head1 STARTING MODULE DEVELOPMENT
-
-When starting development on a new module, it's rarely worth your time
-to create a tree of all the files by hand. Some automatic
-module-creators are available: the oldest is C<h2xs>, which has
-shipped with perl itself for a long time. Its name reflects the fact
-that modules were originally conceived of as a way to wrap up a C
-library (thus the C<h> part) into perl extensions (thus the C<xs>
-part).
-
-These days, C<h2xs> has largely been superseded by modules like
-C<ExtUtils::ModuleMaker>, C<Module::Starter>, and C<Module::Maker>.
-They have varying degrees of support for C<Module::Build>.
-
-
=head1 MIGRATION
Note that if you want to provide both a F<Makefile.PL> and a
=head1 AUTHOR
-Ken Williams, kwilliams@cpan.org
+Ken Williams <kwilliams@cpan.org>
Development questions, bug reports, and patches should be sent to the
-Module-Build mailing list at module-build-general@lists.sourceforge.net .
+Module-Build mailing list at <module-build-general@lists.sourceforge.net>.
Bug reports are also welcome at
-http://rt.cpan.org/NoAuth/Bugs.html?Dist=Module-Build .
+<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Module-Build>.
-An anonymous CVS repository containing the latest development version
-is available; see http://sourceforge.net/cvs/?group_id=45731 for the
-details of how to access it.
+The latest development version is available from the Subversion
+repository at <https://svn.perl.org/modules/Module-Build/trunk/>
=head1 SEE ALSO
-perl(1), Module::Build(3), Module::Build::Cookbook(3),
-ExtUtils::MakeMaker(3), YAML(3)
+perl(1), L<Module::Build>(3), L<Module::Build::API>(3),
+L<Module::Build::Cookbook>(3), L<ExtUtils::MakeMaker>(3), L<YAML>(3)
F<META.yml> Specification:
L<http://module-build.sourceforge.net/META-spec-v1.2.html>
L<http://www.dsmit.com/cons/>
+L<http://search.cpan.org/dist/PerlBuildSystem/>
+
=cut
use strict;
BEGIN { require 5.00503 }
+
+use Carp;
use Config;
use File::Copy ();
use File::Find ();
}
sub _backticks {
- # Tries to avoid using true backticks, when possible, so that we
- # don't have to worry about shell args.
-
my ($self, @cmd) = @_;
- if ($self->have_multiarg_pipeopen) {
+ if ($self->have_forkpipe) {
local *FH;
- open FH, "-|", @cmd or die "Can't run @cmd: $!";
- return wantarray ? <FH> : join '', <FH>;
+ my $pid = open FH, "-|";
+ if ($pid) {
+ return wantarray ? <FH> : join '', <FH>;
+ } else {
+ die "Can't execute @cmd: $!\n" unless defined $pid;
+ exec { $cmd[0] } @cmd;
+ }
} else {
my $cmd = $self->_quote_args(@cmd);
return `$cmd`;
}
}
-sub have_multiarg_pipeopen { $] >= 5.008 }
+sub have_forkpipe { 1 }
# Determine whether a given binary is the same as the perl
# (configuration) that started this process.
return -t STDIN && (-t STDOUT || !(-f STDOUT || -c STDOUT)) ; # Pipe?
}
+sub _is_unattended {
+ my $self = shift;
+ return $ENV{PERL_MM_USE_DEFAULT} || ( !$self->_is_interactive && eof STDIN );
+}
+
+sub _readline {
+ my $self = shift;
+ return undef if $self->_is_unattended;
+
+ my $answer = <STDIN>;
+ chomp $answer if defined $answer;
+ return $answer;
+}
+
sub prompt {
my $self = shift;
- my ($mess, $def) = @_;
- die "prompt() called without a prompt message" unless @_;
-
+ my $mess = shift
+ or die "prompt() called without a prompt message";
+
+ my $def;
+ if ( $self->_is_unattended && !@_ ) {
+ die <<EOF;
+ERROR: This build seems to be unattended, but there is no default value
+for this question. Aborting.
+EOF
+ }
+ $def = shift if @_;
($def, my $dispdef) = defined $def ? ($def, "[$def] ") : ('', ' ');
- {
- local $|=1;
- print "$mess $dispdef";
- }
- my $ans;
- if ( ! $ENV{PERL_MM_USE_DEFAULT} &&
- ( $self->_is_interactive || ! eof STDIN ) ) {
- $ans = <STDIN>;
- if ( defined $ans ) {
- chomp $ans;
- } else { # user hit ctrl-D
- print "\n";
- }
- }
-
- unless (defined($ans) and length($ans)) {
+ local $|=1;
+ print "$mess $dispdef";
+
+ my $ans = $self->_readline();
+
+ if ( !defined($ans) ) { # Ctrl-D
+ print "\n";
+ } elsif ( !length($ans) ) { # Default
print "$def\n";
$ans = $def;
}
-
+
return $ans;
}
sub y_n {
my $self = shift;
- die "y_n() called without a prompt message" unless @_;
- die "y_n() called without y or n default" unless ($_[1]||"")=~/^[yn]/i;
+ my ($mess, $def) = @_;
+
+ die "y_n() called without a prompt message" unless $mess;
+ die "Invalid default value: y_n() default must be 'y' or 'n'"
+ if $def && $def !~ /^[yn]/i;
+
+ if ( $self->_is_unattended && !$def ) {
+ die <<EOF;
+ERROR: This build seems to be unattended, but there is no default value
+for this question. Aborting.
+EOF
+ }
- my $interactive = $self->_is_interactive;
my $answer;
- while (1) {
+ while (1) { # XXX Infinite or a large number followed by an exception ?
$answer = $self->prompt(@_);
return 1 if $answer =~ /^y/i;
return 0 if $answer =~ /^n/i;
+ local $|=1;
print "Please answer 'y' or 'n'.\n";
}
}
return %new_opts;
}
-# Look for a home directory on various systems. CPANPLUS does something like this.
+# Look for a home directory on various systems.
sub _home_dir {
- my @os_home_envs = qw( APPDATA HOME USERPROFILE WINDIR SYS$LOGIN );
-
- foreach ( @os_home_envs ) {
- return $ENV{$_} if exists $ENV{$_} && defined $ENV{$_} && length $ENV{$_} && -d $ENV{$_};
+ my @home_dirs;
+ push( @home_dirs, $ENV{HOME} ) if $ENV{HOME};
+
+ push( @home_dirs, File::Spec->catpath($ENV{HOMEDRIVE}, $ENV{HOMEPATH}, '') )
+ if $ENV{HOMEDRIVE} && $ENV{HOMEPATH};
+
+ my @other_home_envs = qw( USERPROFILE APPDATA WINDIR SYS$LOGIN );
+ push( @home_dirs, map $ENV{$_}, grep $ENV{$_}, @other_home_envs );
+
+ my @real_home_dirs = grep -d, @home_dirs;
+
+ return wantarray ? @real_home_dirs : shift( @real_home_dirs );
+}
+
+sub _find_user_config {
+ my $self = shift;
+ my $file = shift;
+ foreach my $dir ( $self->_home_dir ) {
+ my $path = File::Spec->catfile( $dir, $file );
+ return $path if -e $path;
}
-
- return;
+ return undef;
}
# read ~/.modulebuildrc returning global options '*' and
"No options loaded\n");
return ();
} else {
- my $home = $self->_home_dir;
- return () unless defined $home;
- $modulebuildrc = File::Spec->catfile( $home, '.modulebuildrc' );
- return () unless -e $modulebuildrc;
+ $modulebuildrc = $self->_find_user_config( '.modulebuildrc' );
+ return () unless $modulebuildrc;
}
my $fh = IO::File->new( $modulebuildrc )
foreach my $file (keys %$dist_files) {
my $new = $self->copy_if_modified(from => $file, to_dir => $dist_dir, verbose => 0);
- chmod +(stat $file)[2], $new
- or $self->log_warn("Couldn't set permissions on $new: $!");
}
$self->_sign_dir($dist_dir) if $self->{properties}{sign};
}
}
+sub install_path {
+ my $self = shift;
+ my( $type, $value ) = ( @_, '<empty>' );
+
+ Carp::croak( 'Type argument missing' )
+ unless defined( $type );
+
+ my $map = $self->{properties}{install_path};
+ return $map unless @_;
+
+ # delete existing value if $value is literal undef()
+ unless ( defined( $value ) ) {
+ delete( $map->{$type} );
+ return undef;
+ }
+
+ # return existing value if no new $value is given
+ if ( $value eq '<empty>' ) {
+ return undef unless exists $map->{$type};
+ return $map->{$type};
+ }
+
+ # set value if $value is a valid relative path
+ return $map->{$type} = $value;
+}
+
sub install_base_relpaths {
- # Usage: install_base_relpaths('lib') or install_base_relpaths();
+ # Usage: install_base_relpaths(), install_base_relpaths('lib'),
+ # or install_base_relpaths('lib' => $value);
my $self = shift;
my $map = $self->{properties}{install_base_relpaths};
return $map unless @_;
-
- my $type = shift;
- return unless exists $map->{$type};
- return File::Spec->catdir(@{$map->{$type}});
+ return $self->_relpaths($map, @_);
}
);
}
+sub _relpaths {
+ my $self = shift;
+ my( $map, $type, $value ) = ( @_, '<empty>' );
+
+ Carp::croak( 'Type argument missing' )
+ unless defined( $type );
+
+ my @value = ();
+
+ # delete existing value if $value is literal undef()
+ unless ( defined( $value ) ) {
+ delete( $map->{$type} );
+ return undef;
+ }
+
+ # return existing value if no new $value is given
+ elsif ( $value eq '<empty>' ) {
+ return undef unless exists $map->{$type};
+ @value = @{ $map->{$type} };
+ }
+
+ # set value if $value is a valid relative path
+ else {
+ Carp::croak( "Value must be a relative path" )
+ if File::Spec::Unix->file_name_is_absolute($value);
+
+ @value = split( /\//, $value );
+ $map->{$type} = \@value;
+ }
+
+ return File::Spec->catdir( @value );
+}
# Defaults to use in case the config install paths cannot be prefixified.
sub prefix_relpaths {
- # Usage: prefix_relpaths('site', 'lib') or prefix_relpaths('site');
+ # Usage: prefix_relpaths('site'), prefix_relpaths('site', 'lib'),
+ # or prefix_relpaths('site', 'lib' => $value);
my $self = shift;
my $installdirs = shift || $self->installdirs;
my $map = $self->{properties}{prefix_relpaths}{$installdirs};
return $map unless @_;
-
- my $type = shift;
- return unless exists $map->{$type};
- return File::Spec->catdir(@{$map->{$type}});
+ return $self->_relpaths($map, @_);
}
sub install_types {
my $self = shift;
- my %types = (%{$self->install_path}, %{ $self->install_sets($self->installdirs) });
+
+ my %types;
+ if ( $self->install_base ) {
+ %types = %{$self->install_base_relpaths};
+ } elsif ( $self->prefix ) {
+ %types = %{$self->prefix_relpaths};
+ } else {
+ %types = %{$self->install_sets($self->installdirs)};
+ }
+
+ %types = (%types, %{$self->install_path});
+
return sort keys %types;
}
}
return if $self->up_to_date($file, $to_path); # Already fresh
-
+
+ $self->delete_filetree($to_path); # delete destination if exists
+
# Create parent directories
File::Path::mkpath(File::Basename::dirname($to_path), 0, 0777);
$self->log_info("$file -> $to_path\n") if $args{verbose};
File::Copy::copy($file, $to_path) or die "Can't copy('$file', '$to_path'): $!";
+ # mode is read-only + (executable if source is executable)
+ my $mode = 0444 | ( -x $file ? 0111 : 0 );
+ chmod( $mode, $to_path );
+
return $to_path;
}
Revision history for Perl extension Module::Build.
-0.27_11 Tue Mar 28 22:50:50 CST 2006
+0.28 Thu Apr 27 22:25:00 CDT 2006
+
+ - When y_n() or prompt() are called without a default value and the
+ build seems to be unattended (e.g. in automatic CPAN testing), we
+ now die() with an error message rather than silently returning
+ undef for prompt(), or looping indefinitely for y_n().
+
+ - When searching for '.modulebuildrc', return the first HOME-like
+ directory that actually contains the file instead of the first
+ existing directory. Document the search locations and the order
+ searched. [Spotted by David Golden]
+
+ - Split the API documentation out of Module::Build::Authoring into
+ its own document: Module::Build::API.
+
+ - We should not emit a warning if a Module::Build subclass is
+ required in a Makefile.PL that is not bundled in the current
+ distribution; it may be installed on the user's system. [Spotted by
+ Tyler MacDonald]
+
+ - copy_if_modified() now preserves the executable bit of the source
+ file. [Spotted by Julian Mehnle]
+
+ - Fixed compatibility of our screen-scraping the Test::Harness output
+ so we can recognize the most recent Test::Harness version. [Steve
+ Hay]
+
+ - Backing out a requirement added in 0.27_06 on the method y_n()
+ to always include a default. This behavior would cause existing
+ build scripts to start failing. We now fail with a missing default
+ only when $ENV{PERL_MM_USE_DEFAULT} is set because there is no
+ reasonable default.
+
+ - Make install_types() method smarter with respect to custom install
+ types.
+
+ - Add documentation for the install_base_relpaths() and
+ prefix_relpaths() methods. Improved their usage for a public API,
+ and added tests.
+
+0.27_10 Tue Mar 28 22:50:50 CST 2006
- Added the create_packlist property, default true, which controls
whether packlist files will be written during installation. This
print {$fh} "# Note: this file was auto-generated by ", __PACKAGE__, " version $VERSION\n";
- # If a custom subclass is being used, make sure we add its directory to @INC
+ # If a *bundled* custom subclass is being used, make sure we add its
+ # directory to @INC.
my $subclass_load = '';
if (ref($build) ne "Module::Build") {
my $subclass_dir = $package->subclass_dir($build);
-
+
if (File::Spec->file_name_is_absolute($subclass_dir)) {
my $base_dir = $build->base_dir;
if ($build->dir_contains($base_dir, $subclass_dir)) {
$subclass_dir = File::Spec->abs2rel($subclass_dir, $base_dir);
- } else {
- $build->log_warn("Warning: builder subclass " . ref($build) .
- " doesn't seem to have been loaded from within $base_dir");
+ $subclass_load = "use lib '$subclass_dir';";
}
+
+ } else {
+ $subclass_load = "use lib '$subclass_dir';";
}
- $subclass_load = "use lib '$subclass_dir';";
}
-
+
if ($type eq 'small') {
printf {$fh} <<'EOF', $subclass_load, ref($build), ref($build);
use Module::Build::Compat 0.02;
=head1 SEE ALSO
-Module::Build(3), ExtUtils::MakeMaker(3)
+L<Module::Build>(3), L<ExtUtils::MakeMaker>(3)
=cut
This essentially just prepends all the installation paths with the
F</tmp/my-package-1.003> directory.
+
=head2 Installing to a non-standard directory
To install to a non-standard directory (for example, if you don't have
See L<Module::Build/"INSTALL PATHS"> for a much more complete
discussion of how installation paths are determined.
+
=head2 Running a single test file
-C<Module::Builde> supports running a single test, which enables you to
+C<Module::Build> supports running a single test, which enables you to
track down errors more quickly. Use the following format:
./Build test --test_files t/mytest.t
my $class = Module::Build->subclass(
class => "Module::Build::Custom",
code => <<'SUBCLASS' );
-
+
sub ACTION_install {
my $self = shift;
# YOUR CODE HERE
$self->SUPER::ACTION_install;
}
SUBCLASS
-
+
$class->new(
module_name => 'Your::Module',
# rest of the usual Module::Build parameters
)->create_build_script;
-See the C<Module::Build::Authoring> pod in 0.27 or above for more
+See the L<Module::Build::Authoring> pod in 0.27 or above for more
complete documentation on this.
+
=head1 AUTHOR
Ken Williams <ken@cpan.org>
=head1 SEE ALSO
-perl(1), Module::Build(3)
+perl(1), L<Module::Build>(3), L<Module::Build::Authoring>(3),
+L<Module::Build::API>(3)
=cut
=head1 SEE ALSO
-perl(1), Module::Build(3)
+perl(1), L<Module::Build>(3)
=cut
use ExtUtils::Install;
-sub have_multiarg_pipeopen { 0 }
+sub have_forkpipe { 0 }
sub new {
my $class = shift;
return $return_args;
}
-sub have_multiarg_pipeopen { 0 }
+sub have_forkpipe { 0 }
=back
return '.';
}
-sub have_multiarg_pipeopen { 0 }
+sub have_forkpipe { 0 }
sub ACTION_realclean {
my ($self) = @_;
sub manpage_separator { '.' }
-sub have_multiarg_pipeopen { 0 }
+sub have_forkpipe { 0 }
1;
__END__
package Module::Build::YAML;
use strict;
-use warnings;
-our $VERSION = "0.50";
-our @EXPORT = ();
-our @EXPORT_OK = qw(Dump Load DumpFile LoadFile);
+use vars qw($VERSION @EXPORT @EXPORT_OK);
+$VERSION = "0.50";
+@EXPORT = ();
+@EXPORT_OK = qw(Dump Load DumpFile LoadFile);
sub new {
my $this = shift;
if ($filename =~ /^\s*(>{1,2})\s*(.*)$/) {
($mode, $filename) = ($1, $2);
}
- open my $OUT, $mode, $filename
+ open my $OUT, "$mode $filename"
or die "Can't open $filename for writing: $!";
print $OUT Dump(@_);
close $OUT;
#
# Author: Christopher J. Madsen <cjm@pobox.com>
# Created: 08 Nov 1997
-# $Revision: 1.2 $ $Date: 2006/03/21 13:27:29 $
+# $Revision: 1849 $ $Date: 2006-03-21T13:27:29.000000Z $
#
# This program is free software; you can redistribute it and/or modify
# it under the same terms as Perl itself.
use strict;
use lib $ENV{PERL_CORE} ? '../lib/Module/Build/t/lib' : 't/lib';
-use MBTest tests => 92;
+use MBTest tests => 113;
use Cwd ();
my $cwd = Cwd::cwd;
$mb->prefix(undef);
+# Check install_path() accessor
+{
+ my( $map, $path );
+
+ $map = $mb->install_path();
+ is_deeply( $map, {}, 'install_path() accessor' );
+
+ $path = $mb->install_path('elem' => '/foo/bar');
+ is( $path, '/foo/bar', ' returns assigned path' );
+
+ $path = $mb->install_path('elem');
+ is( $path, '/foo/bar', ' can read stored path' );
+
+ $map = $mb->install_path();
+ is_deeply( $map, { 'elem' => '/foo/bar' }, ' can access map' );
+
+ $path = $mb->install_path('elem' => undef);
+ is( $path, undef, ' can delete a path element' );
+
+ $map = $mb->install_path();
+ is_deeply( $map, {}, ' deletes path from map' );
+}
+
+# Check install_base_relpaths() accessor
+{
+ my( $map, $path );
+
+ $map = $mb->install_base_relpaths();
+ is( ref($map), 'HASH', 'install_base_relpaths() accessor' );
+
+ eval{ $path = $mb->install_base_relpaths('elem' => '/foo/bar') };
+ like( $@, qr/Value must be a relative path/, ' emits error if path not relative' );
+
+ $path = $mb->install_base_relpaths('elem' => 'foo/bar');
+ is( $path, catdir(qw(foo bar)), ' returns assigned path' );
+
+ $path = $mb->install_base_relpaths('elem');
+ is( $path, catdir(qw(foo/bar)), ' can read stored path' );
+
+ $map = $mb->install_base_relpaths();
+ is_deeply( $map->{elem}, [qw(foo bar)], ' can access map' );
+
+ $path = $mb->install_base_relpaths('elem' => undef);
+ is( $path, undef, ' can delete a path element' );
+
+ $map = $mb->install_base_relpaths();
+ is( $map->{elem}, undef, ' deletes path from map' );
+}
+
+# Check prefix_relpaths() accessor
+{
+ my( $map, $path );
+
+ $map = $mb->prefix_relpaths();
+ is( ref($map), 'HASH', 'prefix_relpaths() accessor' );
+
+ is_deeply( $mb->prefix_relpaths(), $mb->prefix_relpaths('site'),
+ ' defaults to \'site\'' );
+
+ eval{ $path = $mb->prefix_relpaths('site', 'elem' => '/foo/bar') };
+ like( $@, qr/Value must be a relative path/, ' emits error if path not relative' );
+
+ $path = $mb->prefix_relpaths('site', 'elem' => 'foo/bar');
+ is( $path, catdir(qw(foo bar)), ' returns assigned path' );
+
+ $path = $mb->prefix_relpaths('site', 'elem');
+ is( $path, catdir(qw(foo bar)), ' can read stored path' );
+
+ $map = $mb->prefix_relpaths();
+ is_deeply( $map->{elem}, [qw(foo bar)], ' can access map' );
+
+ $path = $mb->prefix_relpaths('site', 'elem' => undef);
+ is( $path, undef, ' can delete a path element' );
+
+ $map = $mb->prefix_relpaths();
+ is( $map->{elem}, undef, ' deletes path from map' );
+}
+
+
# Check that we install into the proper default locations.
{
is( $mb->installdirs, 'site' );
use strict;
use lib $ENV{PERL_CORE} ? '../lib/Module/Build/t/lib' : 't/lib';
-use MBTest tests => 53;
+use MBTest tests => 64;
use Cwd ();
my $cwd = Cwd::cwd;
is_deeply $data{conflicts}, {'Foo::Bazxx' => 0, 'Foo::Fooxx' => 0};
}
+{
+ # Test interactive prompting
+
+ my $ans;
+ local $ENV{PERL_MM_USE_DEFAULT};
+
+ local $^W = 0;
+ local *{Module::Build::_readline} = sub { 'y' };
+
+ ok my $mb = Module::Build->new(
+ module_name => $dist->name,
+ license => 'perl',
+ );
+
+ eval{ $mb->prompt() };
+ like $@, qr/called without a prompt/, 'prompt() requires a prompt';
+
+ eval{ $mb->y_n() };
+ like $@, qr/called without a prompt/, 'y_n() requires a prompt';
+
+ eval{ $mb->y_n('Prompt?', 'invalid default') };
+ like $@, qr/Invalid default/, "y_n() requires a default of 'y' or 'n'";
+
+
+ $ENV{PERL_MM_USE_DEFAULT} = 1;
+
+ eval{ $mb->y_n("Is this a question?") };
+ like $@, qr/ERROR:/, 'Do not allow default-less y_n() for unattended builds';
+
+ eval{ $ans = $mb->prompt('Is this a question?') };
+ like $@, qr/ERROR:/, 'Do not allow default-less prompt() for unattended builds';
+
+
+ $ENV{PERL_MM_USE_DEFAULT} = 0;
+
+ $ans = $mb->prompt('Is this a question?');
+ print "\n"; # fake <enter> after input
+ is $ans, 'y', "prompt() doesn't require default for interactive builds";
+
+ $ans = $mb->y_n('Say yes');
+ print "\n"; # fake <enter> after input
+ ok $ans, "y_n() doesn't require default for interactive build";
+
+
+ # Test Defaults
+ *{Module::Build::_readline} = sub { '' };
+
+ $ans = $mb->prompt("Is this a question");
+ is $ans, '', "default for prompt() without a default is ''";
+
+ $ans = $mb->prompt("Is this a question", 'y');
+ is $ans, 'y', " prompt() with a default";
+
+ $ans = $mb->y_n("Is this a question", 'y');
+ ok $ans, " y_n() with a default";
+}
# cleanup
chdir( $cwd ) or die "Can''t chdir to '$cwd': $!";
#!/usr/local/bin/perl -w
-use Test::More qw(no_plan);
-use lib "lib";
-use lib "../lib";
+use strict;
+use lib $ENV{PERL_CORE} ? '../lib/Module/Build/t/lib' : 't/lib';
+use MBTest 'no_plan';
my ($dir);
$dir = ".";
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