update logic for transform to pass in config

README.md

@@ -188,10 +188,10 @@ A property is comprised of the following keyed values:
   ```js
   (configObject) => configObject.differentKey
   ```
-* **transform** (*optional function*) - a function that accepts a found value and maps it to a new value
+* **transform** (*optional function*) - a function that accepts a found value and maps it to a new value (it recieves the config as a secondary argument)
 
   ```js
-  (value) => parseInt(value, 10)  
+  (value, config) => parseInt(value, 10)  
   ```
 
 ### Reserved Keys

package.json

@@ -1,9 +1,9 @@
 {
   "name": "pulpo",
-  "version": "1.3.0",
+  "version": "1.3.1",
   "description": "Configuration mechanism",
   "author": "Patrick Camacho <[email protected]>",
-  "license": "Apache",
+  "license": "Apache-2.0",
   "keywords": [
     "configuration",
     "config",
@@ -39,7 +39,9 @@
     "typescript": "1.8.10"
   },
   "jest": {
-    "scriptPreprocessor": "<rootDir>/preprocessor.js",
+    "transform": {
+      ".*": "<rootDir>/preprocessor.js"
+    },
     "moduleFileExtensions": [
       "ts",
       "tsx",
@@ -49,7 +51,11 @@
   },
   "dependencies": {
     "dotty": "0.0.2",
+    "jest-cli": "18.1.0",
     "minimist": "1.2.0",
-    "typecast": "0.0.1"
+    "next-update": "1.5.1",
+    "tslint": "4.2.0-dev.0",
+    "typecast": "0.0.1",
+    "typescript": "2.2.0-dev.20170101"
   }
 }

src/property.ts

@@ -10,7 +10,7 @@ export interface PropertyDefinition {
   env?: string;
   argv?: string;
   resolve?(config: Object): any;
-  transform?(value: any): any;
+  transform?(value: any, config: Object): any;
 }
 
 function isDefined(value: any): boolean {
@@ -106,8 +106,8 @@ export default class Property {
   }
 
   transform(value: any, rawConfig: Object): any {
-    if (!isDefined(value)) return value;
-    return this.definition.transform ? this.definition.transform(value) : value;
+    if (!(isDefined(value) && this.definition.transform)) return value;
+    return this.definition.transform(value, rawConfig);
   }
 
   validate(value: any): void {

src/type.ts

@@ -21,7 +21,7 @@ export default class Type {
     if (typeof definition.validate !== 'function') {
       throw new Error(`Type ${name} does not have validate method`);
     }
-    
+
     this.validate = definition.validate;
   }
 

test/integration/transform.spec.ts

@@ -19,5 +19,26 @@ describe('Transform', () => {
 
     expect(bound).not.toThrow();
     expect(bound()).toEqual({ origin: 'localhost:8888' });
-  })
+  });
+
+  it('accepts a raw config object as a second argument', () => {
+    const schema = new Schema({
+      foo: {
+        description: 'description',
+        type: 'string',
+        transform: (value, config) => [value, config.bar].join(':')
+      },
+      bar: {
+        description: 'description',
+        type: 'string',
+        required: true,
+        transform: (value) => value.trim()
+      }
+    });
+
+    expect(schema.hydrate({ bar: ' baz ', foo: 'qux' })).toEqual({
+      foo: 'qux:baz',
+      bar: 'baz'
+    });
+  });
 });