Remove the postinstall script during packaging

bsc-plugin/package.json

@@ -9,15 +9,17 @@
         "prepublishOnly": "npm run build",
         "lint": "eslint \"src/**\"",
         "build": "npm run compile && cp -r ../framework/src ./dist/lib/framework",
-        "postinstall": "ropm copy",
         "test": "nyc mocha",
         "test:nocover": "mocha",
         "publish-coverage": "nyc report --reporter=text-lcov | coveralls",
         "publish-npm": "npm run test && npm publish",
         "publish-npm:beta": "npm run test && npm publish --tag=beta",
         "local": "ts-node scripts/install-local.js",
         "remote": "ts-node scripts/install-npm.js",
-        "cli": "ts-node src/cli.ts"
+        "cli": "ts-node src/cli.ts",
+        "prepack": "node scripts/pack.js --pre",
+        "postpack": "node scripts/pack.js --post",
+        "postinstall": "ropm copy"
     },
     "repository": {
         "type": "git",

bsc-plugin/scripts/pack.js

@@ -0,0 +1,20 @@
+var fsExtra = require('fs-extra');
+var path = require('path');
+
+var cachePath = path.join(__dirname, 'pack-cache.txt');
+var packageJsonPath = path.join(__dirname, '../package.json');
+
+var packageJson = fsExtra.readJsonSync(packageJsonPath);
+
+//store the script and remove it from package.json
+if (process.argv.includes('--pre')) {
+    fsExtra.outputFileSync(cachePath, packageJson.scripts.postinstall);
+    delete packageJson.scripts.postinstall;
+
+    //restore the script
+} else if (process.argv.includes('--post')) {
+    packageJson.scripts.postinstall = fsExtra.readFileSync(cachePath, packageJson.scripts.postinstall).toString();
+    fsExtra.removeSync(cachePath);
+}
+
+fsExtra.outputJsonSync(packageJsonPath, packageJson, { spaces: 4 });