From 6c3cdb04ac1794d2b3fd24f7da4c9ec4aac05d11 Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@kitenet.net>
Date: Sat, 28 Jan 2012 22:01:49 -0400
Subject: [PATCH] Switch to YAML::XS to work around insanity in YAML::Mo.
 Closes: #657533

https://rt.cpan.org/Ticket/Display.html?id=74487

Gave up trying to support multiple YAML backends. The XS one requires ugly
manual encoding to get unicode right, and doesn't allow dumping yaml
fragments w/o the yaml header, but at least it doesn't randomly crash
on import like YAML::Mo has started to.
---
 Bundle/IkiWiki.pm     |  2 +-
 IkiWiki/Setup/Yaml.pm | 12 +++++-------
 debian/changelog      |  1 +
 debian/control        |  4 ++--
 ikiwiki.in            |  6 ++----
 5 files changed, 11 insertions(+), 14 deletions(-)

diff --git a/Bundle/IkiWiki.pm b/Bundle/IkiWiki.pm
index a0bd60e46..005936250 100644
--- a/Bundle/IkiWiki.pm
+++ b/Bundle/IkiWiki.pm
@@ -28,7 +28,7 @@ CGI::Session
 Mail::Sendmail
 CGI
 Data::Dumper
-YAML
+YAML::XS
 JSON
 RPC::XML
 
diff --git a/IkiWiki/Setup/Yaml.pm b/IkiWiki/Setup/Yaml.pm
index 6da93bb64..6bf20f480 100644
--- a/IkiWiki/Setup/Yaml.pm
+++ b/IkiWiki/Setup/Yaml.pm
@@ -11,10 +11,8 @@ sub loaddump ($$) {
 	my $class=shift;
 	my $content=shift;
 
-	eval q{use YAML::Any};
-	eval q{use YAML} if $@;
+	eval q{use YAML::XS};
 	die $@ if $@;
-	$YAML::Syck::ImplicitUnicode=1;
 	IkiWiki::Setup::merge(Load(encode_utf8($content)));
 }
 
@@ -35,12 +33,12 @@ sub dumpline ($$$$) {
 	my $type=shift;
 	my $prefix=shift;
 	
-	eval q{use YAML::Old};
-	eval q{use YAML} if $@;
+	eval q{use YAML::XS};
 	die $@ if $@;
-	$YAML::UseHeader=0;
+	$YAML::XS::QuoteNumericStrings=0;
 
-	my $dump=Dump({$key => $value});
+	my $dump=decode_utf8(Dump({$key => $value}));
+	$dump=~s/^---\n//; # yaml header, we don't want
 	chomp $dump;
 	if (length $prefix) {
 		$dump=join("\n", map { $prefix.$_ } split(/\n/, $dump));
diff --git a/debian/changelog b/debian/changelog
index d014abd50..dbc9b16a5 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -2,6 +2,7 @@ ikiwiki (3.20120116) UNRELEASED; urgency=low
 
   * mdwn: Added nodiscount setting, which can be used to avoid using the
     markdown discount engine, when maximum compatability is needed.
+  * Switch to YAML::XS to work around insanity in YAML::Mo. Closes: #657533
 
  -- Joey Hess <joeyh@debian.org>  Mon, 16 Jan 2012 13:41:14 -0400
 
diff --git a/debian/control b/debian/control
index 922fe3c77..9403dfb44 100644
--- a/debian/control
+++ b/debian/control
@@ -7,7 +7,7 @@ Build-Depends-Indep: dpkg-dev (>= 1.9.0), libxml-simple-perl,
   libtimedate-perl, libhtml-template-perl,
   libhtml-scrubber-perl, wdg-html-validator,
   libhtml-parser-perl, liburi-perl (>= 1.36), perlmagick, po4a (>= 0.34),
-  libfile-chdir-perl, libyaml-perl, python-support
+  libfile-chdir-perl, libyaml-libyaml-perl, python-support
 Maintainer: Joey Hess <joeyh@debian.org>
 Uploaders: Josh Triplett <josh@freedesktop.org>
 Standards-Version: 3.9.2
@@ -19,7 +19,7 @@ Architecture: all
 Depends: ${misc:Depends}, ${perl:Depends}, ${python:Depends}, 
   libtext-markdown-discount-perl,
   libhtml-scrubber-perl, libhtml-template-perl,
-  libhtml-parser-perl, liburi-perl (>= 1.36), libyaml-perl, libjson-perl
+  libhtml-parser-perl, liburi-perl (>= 1.36), libyaml-libyaml-perl, libjson-perl
 Recommends: gcc | c-compiler, 
   libc6-dev | libc-dev,
   git (>= 1:1.7) | git-core (>= 1:1.5.0) | subversion | tla | bzr (>= 0.91) | mercurial | monotone (>= 0.38) | darcs,
diff --git a/ikiwiki.in b/ikiwiki.in
index adff1411e..e6b64f439 100755
--- a/ikiwiki.in
+++ b/ikiwiki.in
@@ -108,11 +108,9 @@ sub getconfig () {
 				if (! defined $var || ! defined $val) {
 					die gettext("usage: --set-yaml var=value"), "\n";
 				}
-				eval q{use YAML::Any};
-				eval q{use YAML} if $@;
+				eval q{use YAML::XS; use Encode};
 				die $@ if $@;
-				eval q{$YAML::Syck::ImplicitUnicode=1};
-				$config{$var}=Load($val."\n");
+				$config{$var}=Load(encode_utf8($val)."\n");
 			},
 			"version" => sub {
 				print "ikiwiki version $IkiWiki::version\n";