Instantiate a new panini instance in each gulp task and patch panini …

…to refresh the partials in all renderers

Panini exports an singleton, through that it holds all options and they can not be overwritten. This change adds a new panini instance for each task to hold it's own options.

Panini is patched because Handlebars is also a singleton, so the partials will be overwritten. You can find more infos here: foundation/panini#81 (comment)

helper/inky.js

@@ -23,7 +23,16 @@ module.exports = function(gulp, plugins, config, name, file) { // eslint-disable
     return [];
   }
 
-  plugins.panini.refresh();
+  var Panini = require('panini').Panini;
+
+  var panini = new Panini({
+    root: srcBase + '/',
+    layouts: srcBase + '/email/layouts/',
+    partials: srcBase + '/email/partials/',
+    helpers: srcBase + '/email/helpers/'
+  });
+
+  panini.loadBuiltinHelpers();
 
   return gulp.src(
     file || srcBase + '/**/*.email.hbs',
@@ -37,12 +46,7 @@ module.exports = function(gulp, plugins, config, name, file) { // eslint-disable
         })
       )
     )
-    .pipe(plugins.panini({
-      root: srcBase + '/',
-      layouts: srcBase + '/email/layouts/',
-      partials: srcBase + '/email/partials/',
-      helpers: srcBase + '/email/helpers/'
-    }))
+    .pipe(panini.render())
     .pipe(plugins.if(!enableInliner, plugins.replace('###THEME-NAME###', themeName)))
     .pipe(plugins.inky())
     .pipe(plugins.replace(/(\\?{!!)(\s+)?/g, '{{'))

patches/panini+1.6.3.patch

@@ -1,21 +1,17 @@
 patch-package
---- a/node_modules/panini/index.js
-+++ b/node_modules/panini/index.js
-@@ -38,10 +38,12 @@ module.exports = function(options) {
-   if (!panini) {
-     panini = new Panini(options);
-     panini.loadBuiltinHelpers();
--    panini.refresh();
--    module.exports.refresh = panini.refresh.bind(panini);
-   }
+--- a/node_modules/panini/lib/render.js
++++ b/node_modules/panini/lib/render.js
+@@ -21,6 +21,10 @@ function render(file, enc, cb) {
+     var page = fm(stripBom(file.contents.toString()));
+     var pageData;
 
-+  panini.options = options;
-+  panini.refresh();
-+  module.exports.refresh = panini.refresh.bind(panini);
++    // Rendering is processed in asynchronous strem - therefore you need to refresh Handlebars Configuration when in multi-instance mode
++    this.Handlebars.partials = {};
++    this.refresh();
 +
-   // Compile pages with the above helpers
-   return panini.render();
- }
+     // Determine which layout to use
+     var basePath = path.relative(this.options.root, path.dirname(file.path));
+     var layout =
 --- a/node_modules/panini/lib/utils.js
 +++ b/node_modules/panini/lib/utils.js
 @@ -16,7 +16,12 @@ exports.loadFiles = function(dir, pattern) {