ci: configure linters

.eslintrc.yml

@@ -0,0 +1,18 @@
+extends:
+  - 'plugin:@ianwremmel/ianwremmel/node'
+  - prettier
+
+overrides:
+  # make sure eslint lints all files
+  - files:
+      - '**/*.ts'
+    extends:
+      - 'plugin:@ianwremmel/ianwremmel/typescript'
+
+  - files:
+      - '**/*.js'
+    parserOptions:
+      sourceType: script
+
+rules:
+  no-console: error

.github/workflows/validate.yml

@@ -4,10 +4,44 @@ jobs:
   fixup:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@v2.3.2
       - uses: ianwremmel/prevent-fixup-commits@v1.0.1
   nopush:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@v2.3.2
       - uses: ianwremmel/prevent-nopush-commits@v1.0.2
+  eslint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2.3.2
+      - uses: actions/setup-node@v2.1.1
+        with:
+          node-version: '12'
+      - run: npm install
+      - run: npm run lint:es
+        env:
+          ESLINT_FORMAT_OPTIONS:
+            '--format json-with-metadata --output-file reports/style/eslint.json'
+      - uses: check-run-reporter/action@typescript-action
+        if: ${{ always() }}
+        with:
+          report: 'reports/style/eslint.json'
+          token: ${{ secrets.CHECK_RUN_REPORTER_TOKEN }}
+  tsc:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2.3.2
+      - uses: actions/setup-node@v2.1.1
+        with:
+          node-version: '12'
+      - run: npm install
+      - run: mkdir -p reports/style
+      - run: npm run lint:types
+        env:
+          TSC_OPTIONS: '| tee reports/style/tsc.log'
+      - uses: check-run-reporter/action@typescript-action
+        if: ${{ always() }}
+        with:
+          report: 'reports/style/tsc.log'
+          token: ${{ secrets.CHECK_RUN_REPORTER_TOKEN }}

index.js

@@ -1,4 +1,7 @@
 'use strict';
 
-require('./babel-register')
+require('./babel-register');
+// as our typescript entrypoint, eslint-plugin-import doesn't know src/index
+// exists
+// eslint-disable-next-line import/no-unresolved
 require('./src/index');