MEDIUM: add github workflow

Author: aiharos

.github/workflows/main.yml

@@ -0,0 +1,44 @@
+# This is a basic workflow to help you get started with Actions
+
+name: CI
+
+# Controls when the action will run.
+on:
+  # Triggers the workflow on push or pull request events but only for the master branch
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - uses: actions/checkout@v2
+        with:
+          ref: master
+
+      - name: Set up Go
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.15
+
+      # Runs a set of commands using the runners shell
+      - name: Run a multi-line script
+        run: |
+          export
+          git clone -b git_envs https://github.com/aiharos/github-actions.git
+          cd github-actions/check-commit; go run check.go "../../."

check-commit/check.go

@@ -215,6 +215,7 @@ func readGitEnvironment() (*gitEnv, error) {
 
 		if ref != "" && base != "" {
 			log.Printf("detected %s environment\n", vars.EnvName)
+			log.Printf("using %s and %s\n", ref, base)
 
 			return &gitEnv{
 				Ref:  ref,