1+ "use strict" ;
2+
13/*
24 * mustache pattern engine for patternlab-node - v2.X.X - 2016
35 *
1719 *
1820 */
1921
20- "use strict" ;
21-
22- var Mustache = require ( 'mustache' ) ;
23- var utilMustache = require ( './util_mustache' ) ;
22+ const fs = require ( 'fs-extra' ) ;
23+ const path = require ( 'path' ) ;
24+ const Mustache = require ( 'mustache' ) ;
25+ const utilMustache = require ( './util_mustache' ) ;
2426
2527// This holds the config from from core. The core has to call
2628// usePatternLabConfig() at load time for this to be populated, which
@@ -73,6 +75,20 @@ var engine_mustache = {
7375 return matches ;
7476 } ,
7577
78+ spawnFile : function ( config , fileName ) {
79+ const paths = config . paths ;
80+ const metaFilePath = path . resolve ( paths . source . meta , fileName ) ;
81+ try {
82+ fs . statSync ( metaFilePath ) ;
83+ } catch ( err ) {
84+
85+ //not a file, so spawn it from the included file
86+ const localMetaFilePath = path . resolve ( __dirname , '_meta/' , fileName ) ;
87+ const metaFileContent = fs . readFileSync ( path . resolve ( __dirname , '..' , '_meta/' , fileName ) , 'utf8' ) ;
88+ fs . outputFileSync ( metaFilePath , metaFileContent ) ;
89+ }
90+ } ,
91+
7692 /**
7793 * Checks to see if the _meta directory has engine-specific head and foot files,
7894 * spawning them if not found.
@@ -81,7 +97,8 @@ var engine_mustache = {
8197 * assume it's already present
8298 */
8399 spawnMeta : function ( config ) {
84-
100+ this . spawnFile ( config , '_00-head.mustache' ) ;
101+ this . spawnFile ( config , '_01-foot.mustache' ) ;
85102 } ,
86103
87104 // find and return any {{> template-name }} within pattern
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