Implement schema templating (use repository/$apply command)

Author: 1st1

index.js

@@ -9,16 +9,59 @@ var chalk   = require("chalk"),
     temp    = require("temp").track(),
     _       = require("underscore"),
     cson    = require("cson"),
-    plist   = require("plist");
+    plist   = require("plist"),
+    path    = require("path");
+
+
+function readGrammarFile(filename) {
+    function read(filename, vars) {
+        var yamlSource = fs.readFileSync(filename, 'utf8');
+
+        if (vars) {
+            yamlSource = yamlSource.replace(
+                /\$\{(\w+)\}/g,
+                function(all, name) {
+                    if (name && vars[name]) {
+                        return vars[name];
+                    } else {
+                        return all;
+                    }
+                });
+        }
+
+        var schema = yaml.safeLoad(yamlSource);
+
+        if (schema.repository
+            && schema.repository.$apply
+            && schema.repository.$apply instanceof Array)
+        {
+            var specs = schema.repository.$apply;
+            for (var i = 0; i < specs.length; i++) {
+                var spec = specs[i];
+
+                var inner = read(path.join(path.dirname(filename),
+                                           spec.file),
+                                 spec.vars);
+
+                _.extend(schema.repository, inner.repository);
+            }
+
+            delete schema.repository.$apply;
+        }
+
+        return schema;
+    }
+
+    return read(filename);
+}
 
 
 function compileGrammar(grammarFile, additionalGrammars) {
     function _compile(filename, registry) {
         var tmp = temp.openSync();
 
         try {
-            var yamlSource = fs.readFileSync(filename, 'utf8'),
-                yamlSchema = yaml.safeLoad(yamlSource);
+            var yamlSchema = readGrammarFile(filename);
 
             fs.writeSync(tmp.fd, JSON.stringify(yamlSchema));
             fs.closeSync(tmp.fd);
@@ -227,8 +270,7 @@ function test(testFiles, grammarFile, options) {
 
 
 function buildCson(inName, outName) {
-    var yamlSource = fs.readFileSync(inName, 'utf8'),
-        yamlSchema = yaml.safeLoad(yamlSource),
+    var yamlSchema = readGrammarFile(inName),
         csonSource = cson.createCSONString(yamlSchema, {indent: 2});
 
     csonSource = '# AUTOGENERATED FROM ' + inName + '\n' + csonSource;
@@ -237,8 +279,7 @@ function buildCson(inName, outName) {
 
 
 function buildPList(inName, outName) {
-    var yamlSource = fs.readFileSync(inName, 'utf8'),
-        yamlSchema = yaml.safeLoad(yamlSource),
+    var yamlSchema = readGrammarFile(inName),
         plistSource = plist.build(yamlSchema);
 
     plistSource = '<!-- AUTOGENERATED FROM ' + inName + ' -->\n' +

package.json

@@ -1,6 +1,6 @@
 {
   "name": "syntaxdev",
-  "version": "0.0.6",
+  "version": "0.0.7",
   "description": "Unit testing framework for TextMate/Sublime/Atom syntaxes.",
   "main": "index.js",
   "author": "Yury Selivanov <yury@magic.io>",