test: added GTS scripts

Author: djonathascardoso

packages/opencensus-core/package.json

@@ -8,7 +8,13 @@
   "scripts": {
     "build": "node_modules/.bin/tsc --declaration",
     "test": "nyc --reporter=html --reporter=text mocha 'build/test/**/*.js'",
-    "clean": "rimraf build/*"
+    "clean": "rimraf build/*",
+    "check": "gts check",
+    "compile": "tsc -p .",
+    "fix": "gts fix",
+    "prepare": "npm run compile",
+    "pretest": "npm run compile",
+    "posttest": "npm run check"
   },
   "keywords": [
     "opencensus",
@@ -40,11 +46,11 @@
     "@types/semver": "^5.5.0",
     "@types/shimmer": "^1.0.1",
     "@types/uuid": "^3.4.3",
-    "gts": "^0.5.1",
+    "gts": "^0.5.4",
     "mocha": "^5.0.4",
     "ncp": "^2.0.0",
     "ts-node": "^4.0.0",
-    "typescript": "^2.7.2",
+    "typescript": "~2.6.1",
     "nyc": "11.6.0"
   },
   "dependencies": {

packages/opencensus-core/tsconfig.json

@@ -1,4 +1,5 @@
 {
+  "extends": "./node_modules/gts/tsconfig-google.json",
   "compilerOptions": {
     "rootDir": ".",
     "outDir": "build",
@@ -13,12 +14,11 @@
     "target": "es6",
     "sourceMap": false
   },
+  "include": [
+    "src/*.ts",
+    "test/*.ts",
+  ],
   "exclude": [
     "node_modules"
-  ],
-  "include": [
-    "src/**/*.ts",
-    "test/**/*.ts"
   ]
-
-}
+}