Fix UTF-8 handling of log files

src/lib/Hydra/Controller/Build.pm

@@ -12,6 +12,7 @@ use Data::Dump qw(dump);
 use Nix::Store;
 use Nix::Config;
 use List::MoreUtils qw(all);
+use Encode;
 
 
 sub buildChain :Chained('/') :PathPart('build') :CaptureArgs(1) {
@@ -141,9 +142,9 @@ sub showLog {
         # !!! quick hack
         my $pipeline = ($logPath =~ /.bz2$/ ? "bzip2 -d < $logPath" : "cat $logPath")
             . " | nix-log2xml | xsltproc " . $c->path_to("xsl/mark-errors.xsl") . " -"
-            . " | xsltproc " . $c->path_to("xsl/log2html.xsl") . " - | tail -n +2";
+            . " | xsltproc " . $c->path_to("xsl/log2html.xsl") . " -";
         $c->stash->{template} = 'log.tt';
-        $c->stash->{logtext} = `ulimit -t 5 ; $pipeline`;
+        $c->stash->{logtext} = decode("utf-8", `ulimit -t 5 ; $pipeline`);
     }
 
     elsif ($mode eq "raw") {

src/lib/Hydra/Helper/Nix.pm

@@ -8,6 +8,7 @@ use Config::General;
 use Hydra::Helper::CatalystUtils;
 use Hydra::Model::DB;
 use Nix::Store;
+use Encode;
 
 our @ISA = qw(Exporter);
 our @EXPORT = qw(
@@ -310,7 +311,7 @@ sub logContents {
     else {
         $cmd = defined $tail ? "tail -$tail $logPath" : "cat $logPath";
     }
-    return `$cmd`;
+    return decode("utf-8", `$cmd`);
 }
 
 

src/xsl/log2html.xsl

@@ -2,9 +2,7 @@
 
 <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 
-  <xsl:output method='html' encoding="UTF-8"
-              doctype-public="-//W3C//DTD HTML 4.01//EN"
-              doctype-system="http://www.w3.org/TR/html4/strict.dtd" />
+  <xsl:output method='html' encoding="UTF-8" omit-xml-declaration="yes" />
 
   <xsl:template match="logfile">
     <p>

src/xsl/mark-errors.xsl

@@ -2,6 +2,8 @@
 
 <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 
+  <xsl:output method='xml' encoding="UTF-8" />
+
   <xsl:template match="@*|node()">
     <xsl:copy>
       <xsl:apply-templates select="@*|node()"/>