Merge pull request #8 from fadenb/eslint_setup

Eslint setup

.github/eslint-compact.json

@@ -0,0 +1,18 @@
+{
+    "problemMatcher": [
+        {
+            "owner": "eslint-compact",
+            "pattern": [
+                {
+                    "regexp": "^(.+):\\sline\\s(\\d+),\\scol\\s(\\d+),\\s(Error|Warning|Info)\\s-\\s(.+)\\s\\((.+)\\)$",
+                    "file": 1,
+                    "line": 2,
+                    "column": 3,
+                    "severity": 4,
+                    "message": 5,
+                    "code": 6
+                }
+            ]
+        }
+    ]
+}

.github/eslint-stylish.json

@@ -0,0 +1,22 @@
+{
+    "problemMatcher": [
+        {
+            "owner": "eslint-stylish",
+            "pattern": [
+                {
+                    "regexp": "^([^\\s].*)$",
+                    "file": 1
+                },
+                {
+                    "regexp": "^\\s+(\\d+):(\\d+)\\s+(error|warning|info)\\s+(.*)\\s\\s+(.*)$",
+                    "line": 1,
+                    "column": 2,
+                    "severity": 3,
+                    "message": 4,
+                    "code": 5,
+                    "loop": true
+                }
+            ]
+        }
+    ]
+}

.github/tsc.json

@@ -0,0 +1,17 @@
+{
+    "problemMatcher": [
+        {
+            "owner": "tsc",
+            "pattern": [
+                {
+                    "regexp": "^(?:\\s+\\d+\\>)?([^\\s].*)\\((\\d+|\\d+,\\d+|\\d+,\\d+,\\d+,\\d+)\\)\\s*:\\s+(error|warning|info)\\s+(\\w{1,2}\\d+)\\s*:\\s*(.*)$",
+                    "file": 1,
+                    "location": 2,
+                    "severity": 3,
+                    "code": 4,
+                    "message": 5
+                }
+            ]
+        }
+    ]
+}

.github/workflows/eslint.yml

@@ -0,0 +1,13 @@
+name: Linter
+on: [push, pull_request]
+
+jobs:
+  eslint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2-beta
+        with:
+          node-version: '12'
+      - run: npm ci
+      - run: ./node_modules/.bin/eslint -c ./.eslintrc.json -f compact *.js