add blacklist env

Author: yiminghe

package.json

@@ -1,6 +1,6 @@
 {
   "name": "rn-packager",
-  "version": "0.9.5",
+  "version": "0.9.6",
   "description": "Based on Facebook Packager v0.32.0, support Core & Business JS Separate.",
   "main": "src/index.js",
   "bin": {
@@ -17,6 +17,9 @@
   "bugs": {
     "url": "https://github.com/react-component/rn-packager/issues"
   },
+  "scripts": {
+    "publish": "git push origin"
+  },
   "dependencies": {
     "absolute-path": "^0.0.0",
     "art": "^0.10.0",

react-native/packager/react-packager/src/Resolver/index.js

@@ -20,14 +20,10 @@ let rnBlackList = [];
 let rnSimpleBL = [];
 let rnRegExpBL = [];
 
-const blparts = __dirname.split('node_modules');
-let projectRoot = blparts[0];
-if (blparts.length < 2) {
-  projectRoot = process.cwd();
-}
-const blacklistPath = path.join(projectRoot, 'rn-blacklist.js');
-if (fs.existsSync(blacklistPath)) {
-  rnBlackList = require(blacklistPath);
+if(process.env.RN_BLACKLIST_PATH){
+  rnBlackList = require(process.env.RN_BLACKLIST_PATH);
+} else if (fs.existsSync(path.join(process.cwd(), 'rn-blacklist.js'))) {
+  rnBlackList = require(process.cwd() + '/rn-blacklist.js');
 }
 
 for (var i in rnBlackList) {