Adding CI files

.drone.yml

@@ -0,0 +1,13 @@
+pipeline:
+  lint:
+    image: node:${NODE_VERSION}
+    commands:
+      - npm i
+      - npm run lint
+
+matrix:
+  NODE_VERSION:
+    - "10-alpine"
+    - "9-alpine"
+    - "8.11-alpine"
+    - "alpine"

package.json

@@ -50,7 +50,8 @@
         "compile": "tsc -p ./",
         "watch": "tsc -watch -p ./",
         "postinstall": "node ./node_modules/vscode/bin/install",
-        "test": "npm run compile && node ./node_modules/vscode/bin/test"
+        "test": "npm run compile && node ./node_modules/vscode/bin/test",
+        "lint": "tslint -c tslint.json 'src/**/*.ts'"
     },
     "devDependencies": {
         "@types/mocha": "^2.2.42",

tsconfig.json

@@ -8,11 +8,9 @@
         ],
         "sourceMap": true,
         "rootDir": "src",
-        /* Strict Type-Checking Option */
+        "strict": true,
-        "strict": true,   /* enable all strict type-checking options */
+        "noUnusedLocals": true,
-        /* Additional Checks */
+        "noImplicitReturns": true,
-        "noUnusedLocals": true, /* Report errors on unused locals. */
-        "noImplicitReturns": true, /* Report error when not all code paths in function return a value. */
     },
     "exclude": [
         "node_modules",