code checking for locked pages into a new "lockedit" plugin. Both are

* Avoid using lots of memory when copying large non-html files.
  Yes, you can keep videos in the wiki..

1 files changed, 17 insertions, 2 deletions

diff --git a/IkiWiki/Render.pm b/IkiWiki/Render.pm
index dcd107b81..2ad80ced3 100644
--- a/IkiWiki/Render.pm
+++ b/IkiWiki/Render.pm
@@ -195,10 +195,25 @@ sub render ($) { #{{{
 		$oldpagemtime{$page}=time;
 	}
 	else {
-		my $content=readfile($srcfile, 1);
+		my $srcfd=readfile($srcfile, 1, 1);
 		delete $depends{$file};
 		will_render($file, $file, 1);
-		writefile($file, $config{destdir}, $content, 1);
+		my $destfd=writefile($file, $config{destdir}, undef, 1, 1);
+		my $blksize = 16384;
+		my ($len, $buf, $written);
+		while ($len = sysread $srcfd, $buf, $blksize) {
+			if (! defined $len) {
+				next if $! =~ /^Interrupted/;
+				error("failed to read $srcfile: $!");
+			}
+			my $offset = 0;
+			while ($len) {
+				defined($written = syswrite OUT, $buf, $len, $offset)
+					or error("failed to write $file: $!");
+				$len -= $written;
+				$offset += $written;
+			}
+		}
 		$oldpagemtime{$file}=time;
 	}
 } #}}}