1 package DBIx::Class::Optional::Dependencies;
8 # NO EXTERNAL NON-5.8.1 CORE DEPENDENCIES EVER (e.g. C::A::G)
9 # This module is to be loaded by Makefile.PM on a pristine system
11 # POD is generated automatically by calling _gen_pod from the
12 # Makefile.PL in $AUTHOR mode
16 #'Module::Install::Pod::Inherit' => '0.01',
22 'MooseX::Types' => '0.21',
23 'namespace::clean' => '0.11',
24 'Hash::Merge' => '0.11',
27 title => 'Storage::Replicated',
28 desc => 'Modules required for L<DBIx::Class::Storage::DBI::Replicated>',
37 'SQL::Translator' => '0.11002',
40 title => 'Storage::DBI::deploy()',
41 desc => 'Modules required for L<DBIx::Class::Storage::DBI/deploy> and L<DBIx::Class::Storage::DBI/deploymen_statements>',
47 'Test::Pod' => '1.26',
48 'Test::Pod::Coverage' => '1.08',
49 'Pod::Coverage' => '0.20',
50 #'Test::NoTabs' => '0.9',
51 #'Test::EOL' => '0.6',
58 'Test::Memory::Cycle' => '0',
59 'Devel::Cycle' => '1.10',
63 'DateTime::Format::SQLite' => '0',
65 # t/96_is_deteministic_value.t
66 'DateTime::Format::Strptime'=> '0',
72 'DBIx::ContextualFetch' => '0',
73 'Class::DBI::Plugin::DeepAbstractSearch' => '0',
74 'Class::Trigger' => '0',
75 'Time::Piece::MySQL' => '0',
77 'Date::Simple' => '3.03',
85 'Sys::SigAction' => '0',
86 'DBD::Pg' => '2.009002',
87 'DateTime::Format::Pg' => '0',
94 $ENV{DBICTEST_MYSQL_DSN}
96 'DateTime::Format::MySQL' => '0',
104 $ENV{DBICTEST_ORA_DSN}
106 'DateTime::Format::Oracle' => '0',
113 $ENV{DBICTEST_SYBASE_DSN}
115 'DateTime::Format::Sybase' => 0,
122 grep $_, @ENV{qw/DBICTEST_SYBASE_ASA_DSN DBICTEST_SYBASE_ASA_ODBC_DSN/}
124 'DateTime::Format::Strptime' => 0,
131 sub _all_optional_requirements {
132 return { map { %{ $reqs->{$_}{req} || {} } } (keys %$reqs) };
136 my ($class, $group) = @_;
138 croak "req_list_for() expects a requirement group name"
141 my $deps = $reqs->{$group}{req}
142 or croak "Requirement group '$group' does not exist";
148 our %req_availability_cache;
150 my ($class, $group) = @_;
152 croak "req_ok_for() expects a requirement group name"
155 $class->_check_deps ($group) unless $req_availability_cache{$group};
157 return $req_availability_cache{$group}{status};
160 sub req_missing_for {
161 my ($class, $group) = @_;
163 croak "req_missing_for() expects a requirement group name"
166 $class->_check_deps ($group) unless $req_availability_cache{$group};
168 return $req_availability_cache{$group}{missing};
171 sub req_errorlist_for {
172 my ($class, $group) = @_;
174 croak "req_errorlist_for() expects a requirement group name"
177 $class->_check_deps ($group) unless $req_availability_cache{$group};
179 return $req_availability_cache{$group}{errorlist};
183 my ($class, $group) = @_;
185 my $deps = $class->req_list_for ($group);
188 for my $mod (keys %$deps) {
189 if (my $ver = $deps->{$mod}) {
190 eval "use $mod $ver ()";
196 $errors{$mod} = $@ if $@;
200 my $missing = join (', ', map { $deps->{$_} ? "$_ >= $deps->{$_}" : $_ } (sort keys %errors) );
201 $missing .= " (see $class for details)" if $reqs->{$group}{pod};
202 $req_availability_cache{$group} = {
204 errorlist => { %errors },
209 $req_availability_cache{$group} = {
219 my $modfn = __PACKAGE__ . '.pm';
220 $modfn =~ s/\:\:/\//g;
224 #########################################################################
225 ##################### A U T O G E N E R A T E D ########################
226 #########################################################################
228 # The contents of this POD file are auto-generated. Any changes you make
229 # will be lost. If you need to change the generated text edit _gen_pod()
230 # at the end of $modfn
234 "$class - Optional module dependency specifications",
235 '=head1 DESCRIPTION',
237 Some of the less-frequently used features of L<DBIx::Class> have external
238 module dependencies on their own. In order not to burden the average user
239 with modules he will never use, these optional dependencies are not included
240 in the base Makefile.PL. Instead an exception with a descriptive message is
241 thrown when a specific feature is missing one or several modules required for
242 its operation. This module is the central holding place for the current list
243 of such dependencies.
245 '=head1 CURRENT REQUIREMENT GROUPS',
247 Dependencies are organized in C<groups> and each group can list one or more
248 required modules, with an optional minimum version (or 0 for any version).
249 The group name can be used in the
253 for my $group (sort keys %$reqs) {
254 my $p = $reqs->{$group}{pod}
257 my $modlist = $reqs->{$group}{req}
260 next unless keys %$modlist;
263 "=head2 $p->{title}",
266 ( map { "=item * $_" . ($modlist->{$_} ? " >= $modlist->{$_}" : '') } (sort keys %$modlist) ),
268 "Requirement group: B<$group>",
274 '=head2 req_list_for',
276 '=item Arguments: $group_name',
277 '=item Returns: \%list_of_module_version_pairs',
280 This method should be used by DBIx::Class extension authors, to determine the
281 version of modules which a specific feature requires in the current version of
282 DBIx::Class. For example if you write a module/extension that requires
283 DBIx::Class and also requires the availability of
284 L<DBIx::Class::Storage::DBI/deploy>, you can do the following in your
285 C<Makefile.PL> or C<Build.PL>
288 my \$dep_list = $class->req_list_for ('deploy');
290 Which will give you a list of module/version pairs necessary for the particular
291 feature to function with this version of DBIx::Class.
296 '=item Arguments: $group_name',
297 '=item Returns: 1|0',
299 'Returns true or false depending on whether all modules required by C<$group_name> are present on the system and loadable',
301 '=head2 req_missing_for',
303 '=item Arguments: $group_name',
304 '=item Returns: $error_message_string',
307 Returns a single line string suitable for inclusion in larger error messages.
308 This method would normally be used by DBIx::Class core-module author, to
309 indicate to the user that he needs to install specific modules before he will
310 be able to use a specific feature.
312 For example if the requirements for C<replicated> are not available, the
313 returned string would look like:
315 Moose >= 0.98, MooseX::Types >= 0.21, namespace::clean (see $class for details)
317 The author is expected to prepend the necessary text to this message before
318 returning the actual error seen by the user.
321 '=head2 req_errorlist_for',
323 '=item Arguments: $group_name',
324 '=item Returns: \%list_of_loaderrors_per_module',
327 Returns a hashref containing the actual errors that occured while attempting
328 to load each module in the requirement group.
334 $fn =~ s/\.pm$/\.pod/;
336 open (my $fh, '>', $fn) or croak "Unable to write to $fn: $!";
337 print $fh join ("\n\n", @chunks);