Load sqlite backup required modules on demand only

diff --git a/lib/DBIx/Class/Storage/DBI/SQLite.pm b/lib/DBIx/Class/Storage/DBI/SQLite.pm
index 766eb13..6e6e7bb 100644 (file)
--- a/lib/DBIx/Class/Storage/DBI/SQLite.pm
+++ b/lib/DBIx/Class/Storage/DBI/SQLite.pm
@@ -6,15 +6,15 @@ use warnings;
 use base qw/DBIx::Class::Storage::DBI/;
 use mro 'c3';
 
-use POSIX 'strftime';
-use File::Copy;
-use File::Spec;
-
 __PACKAGE__->sql_maker_class('DBIx::Class::SQLMaker::SQLite');
 __PACKAGE__->sql_limit_dialect ('LimitOffset');
 
-sub backup
-{
+sub backup {
+
+  require File::Spec;
+  require File::Copy;
+  require POSIX;
+
   my ($self, $dir) = @_;
   $dir ||= './';
 
@@ -26,20 +26,20 @@ sub backup
   {
     $dbname = $1 if($dsn =~ /^dbi:SQLite:(.+)$/i);
   }
-  $self->throw_exception("Cannot determine name of SQLite db file") 
+  $self->throw_exception("Cannot determine name of SQLite db file")
     if(!$dbname || !-f $dbname);
 
 #  print "Found database: $dbname\n";
 #  my $dbfile = file($dbname);
   my ($vol, $dbdir, $file) = File::Spec->splitpath($dbname);
 #  my $file = $dbfile->basename();
-  $file = strftime("%Y-%m-%d-%H_%M_%S", localtime()) . $file; 
+  $file = POSIX::strftime("%Y-%m-%d-%H_%M_%S", localtime()) . $file;
   $file = "B$file" while(-f $file);
 
   mkdir($dir) unless -f $dir;
   my $backupfile = File::Spec->catfile($dir, $file);
 
-  my $res = copy($dbname, $backupfile);
+  my $res = File::Copy::copy($dbname, $backupfile);
   $self->throw_exception("Backup failed! ($!)") if(!$res);
 
   return $backupfile;
@@ -62,7 +62,7 @@ sub deployment_statements {
   $self->next::method($schema, $type, $version, $dir, $sqltargs, @rest);
 }
 
-sub datetime_parser_type { return "DateTime::Format::SQLite"; } 
+sub datetime_parser_type { return "DateTime::Format::SQLite"; }
 
 =head2 connect_call_use_foreign_keys