Add tslint.prod.json

Now two tslint configs exist. One for development, one for production. In development, the defaultSeverity is set to "warning". Thus, compiling does not fail when breaking a rule. In production defaultSeverity is set to "error", resulting in failing compilation.

When running `npm run build` tests run before building.

Solution for config setup taken from
wmonk/create-react-app-typescript#329 (comment)
wmonk/create-react-app-typescript#133 (comment)

Author: jansule

package.json

@@ -49,8 +49,9 @@
     "build:styleguide": "styleguidist build",
     "eject": "react-scripts-ts eject",
     "lint": "tslint --project tsconfig.json --config tslint.json && tsc --noEmit --project tsconfig.json",
-    "pretest": "npm run lint",
-    "prebuild": "rimraf dist/** && rimraf build/**",
+    "lint:prod": "tslint --project tsconfig.json --config tslint.prod.json && tsc --noEmit --project tsconfig.json",
+    "pretest": "npm run lint:prod",
+    "prebuild": "rimraf dist/** && rimraf build/** && npm run test",
     "prepublishOnly": "npm run build",
     "release": "np --no-yarn && git push https://github.com/terrestris/geostyler.git master --tags",
     "styleguide": "styleguidist server",

tslint.json

@@ -2,6 +2,7 @@
   "extends": [
     "tslint-react"
   ],
+  "defaultSeverity": "warning",
   "rules": {
     "align": [
       true,
@@ -36,16 +37,7 @@
     "no-any": false,
     "no-arg": true,
     "no-bitwise": true,
-    "no-console": [
-      true,
-      "log",
-      "error",
-      "debug",
-      "info",
-      "time",
-      "timeEnd",
-      "trace"
-    ],
+    "no-console": false,
     "no-consecutive-blank-lines": true,
     "no-construct": true,
     "no-debugger": false,
@@ -55,7 +47,7 @@
     "no-shadowed-variable": true,
     "no-string-literal": true,
     "no-switch-case-fall-through": true,
-    "no-trailing-whitespace": false,
+    "no-trailing-whitespace": true,
     "no-unused-expression": true,
     "no-unused-variable": true,
     "no-use-before-declare": true,

tslint.prod.json

@@ -0,0 +1,17 @@
+{
+  "extends": ["./tslint.json"],
+  "defaultSeverity": "error",
+  "rules": {
+    "no-console": [
+      true,
+      "log",
+      "error",
+      "debug",
+      "info",
+      "time",
+      "timeEnd",
+      "trace"
+    ],
+    "no-debugger": true
+  }
+}