X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=catagits%2FCatalyst-Runtime.git;a=blobdiff_plain;f=lib%2FCatalyst%2FUtils.pm;h=4d5f0ed775dcd52acd3f6119329d3396f93cf5b1;hp=6c2ecb54ce4476cff3974745f0a516c389d28f6a;hb=ae29b412955743885e80350085167b54b69672da;hpb=5e5bd6df0d40414ef887ac8b9aa67e2ffac77bd9

diff --git a/lib/Catalyst/Utils.pm b/lib/Catalyst/Utils.pm
index 6c2ecb5..4d5f0ed 100644
--- a/lib/Catalyst/Utils.pm
+++ b/lib/Catalyst/Utils.pm
@@ -6,8 +6,10 @@ use File::Spec;
 use HTTP::Request;
 use Path::Class;
 use URI;
-use Class::Inspector;
 use Carp qw/croak/;
+use Cwd;
+
+use namespace::clean;
 
 =head1 NAME
 
@@ -19,11 +21,13 @@ See L<Catalyst>.
 
 =head1 DESCRIPTION
 
+Catalyst Utilities. 
+
 =head1 METHODS
 
 =head2 appprefix($class)
 
-	MyApp::Foo becomes myapp_foo
+    MyApp::Foo becomes myapp_foo
 
 =cut
 
@@ -160,6 +164,7 @@ sub home {
 
             # find the @INC entry in which $file was found
             (my $path = $inc_entry) =~ s/$file$//;
+            $path ||= cwd() if !defined $path || !length $path;
             my $home = dir($path)->absolute->cleanup;
 
             # pop off /lib and /blib if they're there
@@ -171,8 +176,9 @@ sub home {
                 # clean up relative path:
                 # MyApp/script/.. -> MyApp
 
-                my ($lastdir) = $home->dir_list( -1, 1 );
-                if ( $lastdir eq '..' ) {
+                my $dir;
+                my @dir_list = $home->dir_list();
+                while (($dir = pop(@dir_list)) && $dir eq '..') {
                     $home = dir($home)->parent->parent;
                 }
 
@@ -233,10 +239,15 @@ sub request {
     return $request;
 }
 
-=head2 ensure_class_loaded($class_name)
+=head2 ensure_class_loaded($class_name, \%opts)
 
 Loads the class unless it already has been loaded.
 
+If $opts{ignore_loaded} is true always tries the require whether the package
+already exists or not. Only pass this if you're either (a) sure you know the
+file exists on disk or (b) have code to catch the file not found exception
+that will result if it doesn't.
+
 =cut
 
 sub ensure_class_loaded {
@@ -246,20 +257,32 @@ sub ensure_class_loaded {
     croak "Malformed class Name $class"
         if $class =~ m/(?:\b\:\b|\:{3,})/;
 
+    croak "Malformed class Name $class"
+        if $class =~ m/[^\w:]/;
+
+    croak "ensure_class_loaded should be given a classname, not a filename ($class)"
+        if $class =~ m/\.pm$/;
+
+    # $opts->{ignore_loaded} can be set to true, and this causes the class to be required, even
+    # if it already has symbol table entries. This is to support things like Schema::Loader, which
+    # part-generate classes in memory, but then also load some of their contents from disk.
     return if !$opts->{ ignore_loaded }
-        && Class::Inspector->loaded( $class ); # if a symbol entry exists we don't load again
+        && Class::MOP::is_class_loaded($class); # if a symbol entry exists we don't load again
 
     # this hack is so we don't overwrite $@ if the load did not generate an error
     my $error;
     {
         local $@;
-        eval "require $class";
+        my $file = $class . '.pm';
+        $file =~ s{::}{/}g;
+        eval { CORE::require($file) };
         $error = $@;
     }
 
     die $error if $error;
-    die "require $class was successful but the package is not defined"
-        unless Class::Inspector->loaded($class);
+
+    warn "require $class was successful but the package is not defined."
+        unless Class::MOP::is_class_loaded($class);
 
     return 1;
 }
@@ -292,11 +315,71 @@ 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;
+}
+
+=head2 term_width
+
+Try to guess terminal width to use with formatting of debug output
+
+All you need to get this work, is:
+
+1) Install Term::Size::Any, or
+
+2) Export $COLUMNS from your shell. 
+
+(Warning to bash users: 'echo $COLUMNS' may be showing you the bash
+variable, not $ENV{COLUMNS}. 'export COLUMNS=$COLUMNS' and you should see 
+that 'env' now lists COLUMNS.)
+
+As last resort, default value of 80 chars will be used.
+
+=cut
+
+my $_term_width;
+
+sub term_width {
+    return $_term_width if $_term_width;
+
+    my $width = eval '
+        use Term::Size::Any;
+        my ($columns, $rows) = Term::Size::Any::chars;
+        return $columns;
+    ';
+
+    if ($@) {
+        $width = $ENV{COLUMNS}
+            if exists($ENV{COLUMNS})
+            && $ENV{COLUMNS} =~ m/^\d+$/;
+    }
+
+    $width = 80 unless ($width && $width >= 80);
+    return $_term_width = $width;
+}
 
-=head1 AUTHOR
+=head1 AUTHORS
 
-Sebastian Riedel, C<sri@cpan.org>
-Yuval Kogman, C<nothingmuch@woobling.org>
+Catalyst Contributors, see Catalyst.pm
 
 =head1 COPYRIGHT