--- lib/PXElator/file.pm	2009/08/20 19:00:13	277
+++ lib/PXElator/file.pm	2009/08/26 08:43:40	290
@@ -4,6 +4,9 @@
 use autodie;
 use Carp qw/carp confess/;
 use File::Path qw//;
+use Data::Dump qw/dump/;
+
+my $debug = 1;
 
 sub mkpath {
 	my $file = shift;
@@ -18,28 +21,32 @@
 		mkpath $file;
 		write_file $file, $content;
 		my $size = -s $file;
-		carp "append created $size bytes in $file";
+		carp "## append created $size bytes in $file";
 		return $size;
 	}
 
 	my $on_disk = read_file $file;
 
-	my $relaxed_content =~ s{\s+}{\\s+}gs;
+	my $relaxed_content = $content;
+	   $relaxed_content =~ s{\s+}{\\s+}gs;
 
 	if ( $on_disk !~ m{$relaxed_content} ) {
 
 #		$content =~ s{^[\n\r]+}{\n}s;
 #		$content =~ s{[\n\r]*$}{\n}s;
 
-		open($fh, '>>', $file);
-		print $fh $content;
-		close($fh);
-
-		my $size = length($content);
+		if ( $on_disk =~ s{([\s+]exit[\s\d]*)$}{\n$content\n$1}s ) {
+#			warn "# insert $file\n$on_disk";
+			write_file $file, $on_disk;
+		} else {
+#			warn "# append $file\n$content\n";
+			open($fh, '>>', $file);
+			print $fh $content;
+			close($fh);
+		}
 
-		carp "append $size bytes to $file";
-		warn $content;
-		return $size;
+		carp "## append to $file";
+		return -s $file;
 	}
 }
 
@@ -49,10 +56,10 @@
 	my $content = read_file $file;
 	if ( $content =~ s{$from}{$to}s ) {
 		write_file $file, $content;
-		carp "change $file $from => $to";
+		carp "## change $file $from => $to" if $debug;
 		return 1;
 	} elsif ( $content !~ m{$to}s ) {
-		confess "can't find $from to change into $to in $file";
+		confess "can't find $from to change into $to in $file in ",dump( $content );
 	}
 }
 
@@ -62,4 +69,13 @@
 	write_file $file, $content;
 }
 
+sub copy_once {
+	my ( $from, $to ) = @_;
+	$to ||= $from;
+	return if -e $to;
+	mkpath $to;
+	write_file $to, read_file $from;
+#	warn "# copy_once $to ", -s $to, " bytes";
+}
+
 1;