Add Problem Matcher

Author: wata727

.github/matchers.json

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

.github/workflows/test.yml

@@ -59,3 +59,20 @@ jobs:
     - name: Validate
       if: matrix.tflint_version == 'latest'
       run: tflint -v
+
+  integration-matchers:
+    name: 'Integration test (tflint_version: ${{ matrix.tflint_version }})'
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        tflint_version: ['v0.26.0', latest]
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+    - name: Use Action
+      uses: ./
+      with:
+        tflint_version: ${{ matrix.tflint_version }}
+    - name: Run
+      run: tflint -f compact --force

example.tf

@@ -0,0 +1,3 @@
+resource "aws_instance" "foo" {
+  instance_type = "t1.2xlarge"
+}

src/setup-tflint.js

@@ -1,4 +1,5 @@
 const os = require('os');
+const path = require('path');
 
 const core = require('@actions/core');
 const tc = require('@actions/tool-cache');
@@ -84,6 +85,9 @@ async function run() {
 
     core.addPath(pathToCLI);
 
+    const matchersPath = path.join(__dirname, '..', '.github');
+    core.info(`##[add-matcher]${path.join(matchersPath, 'matchers.json')}`);
+
     return version;
   } catch (ex) {
     core.error(ex);