'DBD::ODBC' => '0',
};
-my $reqs = {
+my $dbic_reqs = {
replicated => {
req => $replicated,
pod => {
},
},
-# the order does matter because the rdbms support group might require
-# a different version that the test group
test_rdbms_pg => {
req => {
$ENV{DBICTEST_PG_DSN}
? (
+ # the order does matter because the rdbms support group might require
+ # a different version that the test group
+ #
# when changing this list make sure to adjust xt/optional_deps.t
%$rdbms_pg,
'DBD::Pg' => '2.009002',
# standalone library - keep the stupidity to a DBIC-secific shim!
#
sub req_list_for {
- my ($class, $group) = @_;
-
- croak "req_list_for() expects a requirement group name"
- unless $group;
-
- my $deps = $reqs->{$group}{req}
- or croak "Requirement group '$group' does not exist";
-
- return { %$deps };
+ shift->_groups_to_reqs(@_)->{modreqs};
}
sub req_group_list {
- return { map { $_ => { %{ $reqs->{$_}{req} || {} } } } (keys %$reqs) };
+ +{ map
+ { $_ => $_[0]->_groups_to_reqs($_) }
+ keys %$dbic_reqs
+ }
}
sub req_errorlist_for {
- my ($class, $group) = @_;
-
- croak "req_errorlist_for() expects a requirement group name"
- unless $group;
-
- return $class->_check_deps($group)->{errorlist};
+ my $self = shift;
+ $self->_errorlist_for_modreqs( $self->_groups_to_reqs(@_)->{modreqs} );
}
sub req_ok_for {
- my ($class, $group) = @_;
-
- croak "req_ok_for() expects a requirement group name"
- unless $group;
-
- return $class->_check_deps($group)->{status};
+ my $self = shift;
+ $self->_errorlist_for_modreqs( $self->_groups_to_reqs(@_)->{modreqs} )
+ ? 0
+ : 1
+ ;
}
sub req_missing_for {
- my ($class, $group) = @_;
+ my $self = shift;
- croak "req_missing_for() expects a requirement group name"
- unless $group;
+ my $reqs = $self->_groups_to_reqs(@_);
+ my $modreq_errors = $self->_errorlist_for_modreqs($reqs->{modreqs}) or return '';
- return $class->_check_deps($group)->{missing};
+ join ' ',
+ (map { $reqs->{modreqs}{$_} ? qq("$_~>=$reqs->{modreqs}{$_}") : $_ } sort keys %$modreq_errors),
+ ( $reqs->{modreqs_fully_documented} ? "(see @{[ ref $self || $self ]} documentation for details)" : () ),
+ ;
}
sub die_unless_req_ok_for {
- my ($class, $group) = @_;
-
- croak "die_unless_req_ok_for() expects a requirement group name"
- unless $group;
-
- $class->_check_deps($group)->{status}
- or die sprintf( "Required modules missing, unable to continue: %s\n", $class->_check_deps($group)->{missing} );
+ if (my $err = shift->req_missing_for(@_) ) {
+ die "Required modules missing, unable to continue: $err\n";
+ }
}
### Private OO API
+our %req_unavailability_cache;
+
+# this method is just a lister/metadata checker - it does not try to load anything
+sub _groups_to_reqs {
+ my ($self, $groups) = @_;
+
+ $groups = [ $groups || () ]
+ unless ref $groups eq 'ARRAY';
+
+ croak "@{[ (caller(1))[3] ]}() expects a requirement group name or arrayref of group names"
+ unless @$groups;
+
+ my $ret = {
+ modreqs => {},
+ modreqs_fully_documented => 1,
+ };
-our %req_availability_cache;
-sub _check_deps {
- my ($class, $group) = @_;
- return $req_availability_cache{$group} ||= do {
+ for my $group ( @$groups ) {
- my $deps = $class->req_list_for ($group);
+ $group =~ /\A [A-Za-z][0-9A-Z_a-z]* \z/x
+ or croak "Invalid requirement group name '$group': only ascii alphanumerics and _ are allowed";
- my %errors;
- for my $mod (keys %$deps) {
- my $req_line = "require $mod;";
- if (my $ver = $deps->{$mod}) {
- $req_line .= "$mod->VERSION($ver);";
- }
+ my $group_reqs = ($dbic_reqs->{$group}||{})->{req}
+ or croak "Requirement group '$group' is not defined";
- eval $req_line;
+ # sanity-check
+ for (keys %$group_reqs) {
- $errors{$mod} = $@ if $@;
+ $_ =~ /\A [A-Z_a-z][0-9A-Z_a-z]* (?:::[0-9A-Z_a-z]+)* \z /x
+ or croak "Requirement '$_' in group '$group' is not a valid module name";
+
+ # !!!DO NOT CHANGE!!!
+ # remember - version.pm may not be available on the system
+ croak "Requirement '$_' in group '$group' specifies an invalid version '$group_reqs->{$_}' (only plain non-underscored floating point decimals are supported)"
+ if ( ($group_reqs->{$_}||0) !~ / \A [0-9]+ (?: \. [0-9]+ )? \z /x );
}
- my $res;
+ # assemble into the final ret
+ for (keys %$group_reqs) {
+
+ $ret->{modreqs}{$_} = $group_reqs->{$_}||0 if (
+
+ ! exists $ret->{modreqs}{$_}
+ or
+ # we sanitized the version to be numeric above - we can just -gt it
+ ($group_reqs->{$_}||0) > $ret->{modreqs}{$_}
- if (keys %errors) {
- my $missing = join (', ', map { $deps->{$_} ? qq("${_}~>=$deps->{$_}") : $_ } (sort keys %errors) );
- $missing .= " (see $class documentation for details)" if $reqs->{$group}{pod};
- $res = {
- status => 0,
- errorlist => \%errors,
- missing => $missing,
- };
+ );
}
- else {
- $res = {
- status => 1,
- errorlist => {},
- missing => '',
- };
+
+ $ret->{modreqs_fully_documented} &&= !!$dbic_reqs->{$group}{pod};
+ }
+
+ return $ret;
+}
+
+
+# this method tries to load specified modreqs and returns a hashref of
+# module/loaderror pairs for anything that failed
+sub _errorlist_for_modreqs {
+ # args supposedly already went through _groups_to_reqs and are therefore sanitized
+ # safe to eval at will
+ my ($self, $reqs) = @_;
+
+ my $ret;
+
+ for my $m ( keys %$reqs ) {
+ my $v = $reqs->{$m};
+
+ if (! exists $req_unavailability_cache{$m}{$v} ) {
+ local $@;
+ eval( "require $m;" . ( $v ? "$m->VERSION(q($v))" : '' ) );
+ $req_unavailability_cache{$m}{$v} = $@;
}
- $res;
- };
+ $ret->{$m} = $req_unavailability_cache{$m}{$v}
+ if $req_unavailability_cache{$m}{$v};
+ }
+
+ $ret;
}
+
# This is to be called by the author only (automatically in Makefile.PL)
sub _gen_pod {
my ($class, $distver, $pod_dir) = @_;
File::Path::mkpath([$dir]);
- my $sqltver = $class->req_list_for ('deploy')->{'SQL::Translator'}
+ my $sqltver = $class->req_list_for('deploy')->{'SQL::Translator'}
or die "Hrmm? No sqlt dep?";
Dependencies are organized in L<groups|/CURRENT REQUIREMENT GROUPS> where each
group can list one or more required modules, with an optional minimum version
-(or 0 for any version). The group name can be used in the
-L<public methods|/METHODS> as described below.
+(or 0 for any version). Each group name (or a combination thereof) can be used
+in the L<public methods|/METHODS> as described below.
EOC
#@@
push @chunks, '=head1 CURRENT REQUIREMENT GROUPS';
- for my $group (sort keys %$reqs) {
- my $p = $reqs->{$group}{pod}
+ for my $group (sort keys %$dbic_reqs) {
+ my $p = $dbic_reqs->{$group}{pod}
or next;
- my $modlist = $reqs->{$group}{req}
+ my $modlist = $dbic_reqs->{$group}{req}
or next;
next unless keys %$modlist;
=back
This method should be used by DBIx::Class packagers, to get a hashref of all
-dependencies keyed by dependency group. Each key (group name) can be supplied
-to one of the group-specific methods below.
+dependencies B<keyed> by dependency group. Each key (group name), or a combination
+thereof (as an arrayref) can be supplied to the methods below.
The B<values> of the returned hash are currently a set of options B<without a
well defined structure>. If you have use for any of the contents - contact the
maintainers, instead of treating this as public (left alone stable) API.
=over
-=item Arguments: $group_name
+=item Arguments: $group_name | \@group_names
-=item Return Value: \%list_of_module_version_pairs
+=item Return Value: \%set_of_module_version_pairs
=back
This method should be used by DBIx::Class extension authors, to determine the
-version of modules a specific feature requires in the B<current> version of
+version of modules a specific set of features requires for this version of
DBIx::Class. See the L</SYNOPSIS> for a real-world example.
=head2 req_ok_for
=over
-=item Arguments: $group_name
+=item Arguments: $group_name | \@group_names
=item Return Value: 1|0
=back
Returns true or false depending on whether all modules required by
-C<$group_name> are present on the system and loadable.
+the group(s) are present on the system and loadable.
=head2 req_missing_for
=over
-=item Arguments: $group_name
+=item Arguments: $group_name | \@group_names
=item Return Value: $error_message_string
=back
+Returns a single-line string suitable for inclusion in larger error messages.
This method would normally be used by DBIx::Class core-modules, to indicate to
the user that they need to install specific modules before being able to use a
specific feature set.
=over
-=item Arguments: $group_name
+=item Arguments: $group_name | \@group_names
=back
-Checks if L</req_ok_for> passes for the supplied C<$group_name>, and
+Checks if L</req_ok_for> passes for the supplied group(s), and
in case of failure throws an exception including the information
from L</req_missing_for>.
=over
-=item Arguments: $group_name
+=item Arguments: $group_name | \@group_names
-=item Return Value: \%list_of_loaderrors_per_module
+=item Return Value: \%set_of_loaderrors_per_module
=back
Returns a hashref containing the actual errors that occurred while attempting
-to load each module in the requirement group.
+to load each module in the requirement group(s).
EOC
+
#@@
#@@ FOOTER
#@@
projects / dbsrgits/DBIx-Class.git / blobdiff