add sample

.github/workflows/golangci.yml

@@ -0,0 +1,14 @@
+name: golangci-lint
+on: [pull_request]
+jobs:
+  golangci-lint-dockerfile:
+    name: golangci-lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code into the Go module directory
+        uses: actions/checkout@v1
+      - name: golangci-lint
+        uses: ./
+        with:
+          github_token: ${{ secrets.github_token }}
+          flags: "./testdata"

action.yml

@@ -6,6 +6,9 @@ inputs:
   github_token:
     description: 'GITHUB_TOKEN'
     required: true
+  flags:
+    description: 'GolangCI command line flags'
+    required: false
 runs:
   using: 'docker'
   image: 'Dockerfile'

sample/sample.go

@@ -0,0 +1,14 @@
+// Package sample is used as test input for golangci action.
+package sample
+
+import (
+	"crypto/md5"
+	"encoding/hex"
+)
+
+// Hash~
+func Hash(data string) string {
+	h := md5.New()
+	h.Write([]byte(data))
+	return hex.EncodeToString(h.Sum(nil))
+}