refactor: changed mustache to handlebars extensions

Author: mfranzke

packages/core/src/lib/buildPatterns.js

@@ -91,7 +91,7 @@ module.exports = async (deletePatternDir, patternlab, additionalData) => {
             //take the user defined head and foot and process any data and patterns that apply
 
             //todo this need to be made aware of multiple ui kits
-            //perhaps we can check for a convention like [uikitname]_00-head.mustache, and if found, add them to patternlab.uikits[uikitname].userFoot
+            //perhaps we can check for a convention like [uikitname]_head.hbs, and if found, add them to patternlab.uikits[uikitname].userFoot
             //then, if present, use those during compose()
             const headPatternPromise = processMetaPattern(
               `_head.${patternlab.config.patternExtension}`,

packages/core/src/lib/object_factory.js

@@ -33,7 +33,7 @@ const Pattern = function (
   patternlab,
   isPromoteToFlatPatternRun
 ) {
-  this.relPath = path.normalize(relPath); // 'atoms/global/colors.mustache'
+  this.relPath = path.normalize(relPath); // 'atoms/global/colors.hbs'
 
   /**
    * We expect relPath to be the path of the pattern template, relative to the
@@ -52,7 +52,7 @@ const Pattern = function (
 
   this.fileName = pathObj.name; // 'colors'
   this.subdir = pathObj.dir; // 'atoms/global'
-  this.fileExtension = pathObj.ext; // '.mustache'
+  this.fileExtension = pathObj.ext; // '.hbs'
 
   // TODO: Remove if block when dropping ordering by prefix and keep else code
   // (When we drop the info about the old ordering is deprecated)
@@ -347,7 +347,7 @@ Pattern.prototype = {
    */
   getPatternInfo: (pathObj, patternlab, isPromoteToFlatPatternRun) => {
     const info = {
-      // colors(.mustache) is deeply nested in atoms-/global/colors
+      // colors(.hbs) is deeply nested in atoms-/global/colors
       patternlab: patternlab,
       patternHasOwnDir: isPromoteToFlatPatternRun
         ? path.basename(pathObj.dir).replace(prefixMatcher, '') ===

packages/core/test/files/_patterns/patternType1/patternSubType1/blue.hbs

@@ -0,0 +1 @@
+blue

packages/core/test/files/_patterns/patternType1/patternSubType1/blue.mustache

@@ -0,0 +1 @@
+red

packages/core/test/files/_patterns/patternType1/patternSubType1/red.hbs

@@ -0,0 +1 @@
+yellow

packages/core/test/files/_patterns/patternType1/patternSubType1/red.mustache

@@ -0,0 +1 @@
+black