Added basic json schema validation. A more robust json schema needs to be created

Author: scottdj92

index.js

@@ -9,6 +9,7 @@ var ExtractedModule = require("./ExtractedModule");
 var Chunk = require("webpack/lib/Chunk");
 var OrderUndefinedError = require("./OrderUndefinedError");
 var loaderUtils = require("loader-utils");
+var schemaTester = require('./schema/valid');
 
 var NS = fs.realpathSync(__dirname);
 
@@ -104,6 +105,7 @@ function getOrder(a, b) {
 }
 
 function ExtractTextPlugin(options) {
+	schemaTester(options);
 	if(arguments.length > 1) {
 		throw new Error("Breaking change: ExtractTextPlugin now only takes a single argument. Either an options " +
 						"object *or* the name of the result file.\n" +

package.json

@@ -12,6 +12,7 @@
     "webpack-sources": "^0.1.0"
   },
   "devDependencies": {
+    "ajv": "^4.11.2",
     "codecov.io": "^0.1.2",
     "coveralls": "^2.11.2",
     "css-loader": "^0.21.0",

schema/schema.json

@@ -0,0 +1,80 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "type": "object",
+  "properties": {
+    "fallbackLoader": {
+      "type": "object",
+      "properties": {
+        "type": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "type"
+      ]
+    },
+    "loader": {
+      "type": "object",
+      "properties": {
+        "type": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "type"
+      ]
+    },
+    "publicPath": {
+      "type": "object",
+      "properties": {
+        "type": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "type"
+      ]
+    },
+    "disable": {
+      "type": "object",
+      "properties": {
+        "type": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "type"
+      ]
+    },
+    "allChunks": {
+      "type": "object",
+      "properties": {
+        "type": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "type"
+      ]
+    },
+    "filename": {
+      "type": "object",
+      "properties": {
+        "type": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "type"
+      ]
+    }
+  },
+  "required": [
+    "fallbackLoader",
+    "loader",
+    "publicPath",
+    "disable",
+    "allChunks",
+    "filename"
+  ]
+}

schema/valid.js

@@ -0,0 +1,14 @@
+var Ajv = require('ajv');
+var ajv = new Ajv({allErrors: true});
+var json = require('./schema.json');
+
+module.exports = function validate(data) {
+	var validSchema = ajv.compile(json);
+	var valid = validSchema(data);
+
+	if(!valid) {
+		throw new Error("Your ExtractTextPlugin config is not correct. Please double check.");
+	} else {
+		console.log('your stuff works');
+	}
+}

schema/valid.json

@@ -0,0 +1,8 @@
+{
+  "fallbackLoader": { "type": "string" },
+  "loader": { "type": "string" },
+  "publicPath": { "type": "string" },
+  "disable": { "type": "boolean" },
+  "allChunks": { "type": "boolean"},
+  "filename": { "type": "string" }
+}