first pass RT4 merge, RT#13852

[freeside.git] / rt / lib / RT / Squish / JS.pm

diff --git a/rt/lib/RT/Squish/JS.pm b/rt/lib/RT/Squish/JS.pm
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+++ b/rt/lib/RT/Squish/JS.pm
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+# BEGIN BPS TAGGED BLOCK {{{
+#
+# COPYRIGHT:
+#
+# This software is Copyright (c) 1996-2012 Best Practical Solutions, LLC
+#                                          <sales@bestpractical.com>
+#
+# (Except where explicitly superseded by other copyright notices)
+#
+#
+# LICENSE:
+#
+# This work is made available to you under the terms of Version 2 of
+# the GNU General Public License. A copy of that license should have
+# been provided with this software, but in any event can be snarfed
+# from www.gnu.org.
+#
+# This work is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 or visit their web page on the internet at
+# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html.
+#
+#
+# CONTRIBUTION SUBMISSION POLICY:
+#
+# (The following paragraph is not intended to limit the rights granted
+# to you to modify and distribute this software under the terms of
+# the GNU General Public License and is only of importance to you if
+# you choose to contribute your changes and enhancements to the
+# community by submitting them to Best Practical Solutions, LLC.)
+#
+# By intentionally submitting any modifications, corrections or
+# derivatives to this work, or any other work intended for use with
+# Request Tracker, to Best Practical Solutions, LLC, you confirm that
+# you are the copyright holder for those contributions and you grant
+# Best Practical Solutions,  LLC a nonexclusive, worldwide, irrevocable,
+# royalty-free, perpetual, license to use, copy, create derivative
+# works based on those contributions, and sublicense and distribute
+# those contributions and any derivatives thereof.
+#
+# END BPS TAGGED BLOCK }}}
+
+=head1 SYNOPSIS
+
+  use RT::Squish::JS;
+  my $squish = RT::Squish::JS->new();
+
+=head1 DESCRIPTION
+
+This module lets you create squished content of js files.
+
+=head1 METHODS
+
+=cut
+
+use strict;
+use warnings;
+
+package RT::Squish::JS;
+use base 'RT::Squish';
+
+=head2 Squish
+
+not only concatenate files, but also minify them
+
+=cut
+
+sub Squish {
+    my $self    = shift;
+    my $content;
+
+    for my $file ( RT->Config->Get('JSFiles') ) {
+        my $path = "/NoAuth/js/$file";
+        if ( $HTML::Mason::Commands::m->comp_exists($path) ) {
+            $content .= $HTML::Mason::Commands::m->scomp($path);
+        } else {
+            RT->Logger->error("Unable to open $path for JS Squishing");
+            next;
+        }
+    }
+
+    return $self->Filter($content);
+}
+
+sub Filter {
+    my $self    = shift;
+    my $content = shift;
+
+    my $minified;
+    my $jsmin = RT->Config->Get('JSMinPath');
+    if ( $jsmin && -x $jsmin ) {
+        my $input = $content;
+        my ( $output, $error );
+
+        # If we're running under fastcgi, STDOUT and STDERR are tied
+        # filehandles, which cause IPC::Run3 to flip out.  Construct
+        # temporary, not-tied replacements for it to see instead.
+        my $stdout = IO::Handle->new;
+        $stdout->fdopen( 1, 'w' );
+        local *STDOUT = $stdout;
+        my $stderr = IO::Handle->new;
+        $stderr->fdopen( 2, 'w' );
+        local *STDERR = $stderr;
+
+        local $SIG{'CHLD'} = 'DEFAULT';
+        require IPC::Run3;
+        IPC::Run3::run3( [$jsmin], \$input, \$output, \$error );
+        if ( $? >> 8 ) {
+            $RT::Logger->warning("failed to jsmin: $error ");
+        }
+        else {
+            $content  = $output;
+            $minified = 1;
+        }
+    }
+
+    return $content;
+}
+
+1;
+