Comments are now disabled by default, new --gcode-comments option to enable them

lib/Slic3r.pm

@@ -41,6 +41,7 @@ our $extrusion_axis     = 'E';
 our $z_offset           = 0;
 our $gcode_arcs         = 0;
 our $g0                 = 0;
+our $gcode_comments     = 0;
 
 # filament options
 our $filament_diameter  = 3;    # mm

lib/Slic3r/Config.pm

@@ -46,6 +46,11 @@ our $Options = {
         cli     => 'g0',
         type    => 'bool',
     },
+    'gcode_comments' => {
+        label   => 'Verbose GCODE (comments)',
+        cli     => 'gcode-comments',
+        type    => 'bool',
+    },
     
     # filament options
     'filament_diameter' => {

lib/Slic3r/Extruder.pm

@@ -292,7 +292,7 @@ sub _Gx {
         $gcode .= sprintf " %s%.5f", $Slic3r::extrusion_axis, $self->extrusion_distance;
     }
     
-    $gcode .= sprintf " ; %s", $comment if $comment;
+    $gcode .= sprintf " ; %s", $comment if $comment && $Slic3r::gcode_comments;
     return "$gcode\n";
 }