Merge pull request #411 from mirumee/add/strict-null-check-errors-snapshots

Snapshot strict null mode error count

.travis/check-strict-null-errors.snapshot

@@ -0,0 +1 @@
+2829

package.json

@@ -189,6 +189,7 @@
     "extract-messages": "npm run extract-json-messages && npm run transpile-messages",
     "build-types": "apollo client:codegen --target=typescript types --globalTypesFile=src/types/globalTypes.ts",
     "check-types": "tsc --noEmit",
+    "check-strict-null-errors": "tsc --noEmit --strictNullChecks | node scripts/count-strict-null-check-errors.js",
     "generate-component": "plop --plopfile .plop/plopfile.js",
     "start": "webpack-dev-server --open -d",
     "storybook": "start-storybook -p 3000 -c src/storybook/",

scripts/count-strict-null-check-errors.js

@@ -0,0 +1,29 @@
+/* eslint-disable @typescript-eslint/no-var-requires */
+/* eslint-disable no-console */
+const fs = require("fs");
+const readline = require("readline");
+
+const updateSnapshot = process.argv.includes("-u");
+const snapshotPath = ".travis/check-strict-null-errors.snapshot";
+const shouldCount = /^src/;
+let errors = 0;
+
+const rl = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout,
+  terminal: false
+});
+
+rl.on("line", line => {
+  if (shouldCount.test(line)) {
+    errors++;
+  }
+});
+
+rl.on("close", () => {
+  if (updateSnapshot) {
+    fs.writeFileSync(snapshotPath, errors);
+  } else {
+    console.log(errors);
+  }
+});