tabs => spaces

[catagits/Catalyst-Runtime.git] / lib / Catalyst / Utils.pm

diff --git a/lib/Catalyst/Utils.pm b/lib/Catalyst/Utils.pm
index 6c2ecb5..0598f53 100644 (file)
--- a/lib/Catalyst/Utils.pm
+++ b/lib/Catalyst/Utils.pm
@@ -23,7 +23,7 @@ See L<Catalyst>.
 
 =head2 appprefix($class)
 
-       MyApp::Foo becomes myapp_foo
+    MyApp::Foo becomes myapp_foo
 
 =cut
 
@@ -292,6 +292,28 @@ sub merge_hashes {
     return \%merged;
 }
 
+=head2 env_value($class, $key)
+
+Checks for and returns an environment value. For instance, if $key is
+'home', then this method will check for and return the first value it finds,
+looking at $ENV{MYAPP_HOME} and $ENV{CATALYST_HOME}.
+
+=cut
+
+sub env_value {
+    my ( $class, $key ) = @_;
+
+    $key = uc($key);
+    my @prefixes = ( class2env($class), 'CATALYST' );
+
+    for my $prefix (@prefixes) {
+        if ( defined( my $value = $ENV{"${prefix}_${key}"} ) ) {
+            return $value;
+        }
+    }
+
+    return;
+}
 
 =head1 AUTHOR