Add github actions for CI

.github/workflows/macos-latest.yml

@@ -0,0 +1,26 @@
+name: Macos-latest
+
+on: [push, pull_request]
+
+jobs:
+
+  build-and-test:
+
+    strategy:
+      matrix:
+        go-version: [1.13, 1.17]
+    runs-on: macos-latest
+    steps:
+    - name: Install Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: ${{ matrix.go-version }}
+
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - name: Build
+      run: go build cmd/arc/main.go
+
+    - name: Test
+      run: go test -v ./...

.github/workflows/ubuntu-latest.yml

@@ -0,0 +1,26 @@
+name: Ubuntu-latest
+
+on: [push, pull_request]
+
+jobs:
+
+  build-and-test:
+
+    strategy:
+      matrix:
+        go-version: [1.13, 1.17]
+    runs-on: ubuntu-latest
+    steps:
+    - name: Install Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: ${{ matrix.go-version }}
+
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - name: Build
+      run: go build cmd/arc/main.go
+
+    - name: Test
+      run: go test -v ./...

.github/workflows/windows-latest.yml

@@ -0,0 +1,26 @@
+name: Windows-latest
+
+on: [push, pull_request]
+
+jobs:
+
+  build-and-test:
+
+    strategy:
+      matrix:
+        go-version: [1.13, 1.17]
+    runs-on: windows-latest
+    steps:
+    - name: Install Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: ${{ matrix.go-version }}
+
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - name: Build
+      run: go build cmd/arc/main.go
+
+    - name: Test
+      run: go test -v ./...

README.md

@@ -1,4 +1,4 @@
-# archiver [![archiver GoDoc](https://img.shields.io/badge/reference-godoc-blue.svg?style=flat-square)](https://pkg.go.dev/github.com/mholt/archiver?tab=doc) <a href="https://dev.azure.com/mholt-dev/Archiver/_build"><img src="https://img.shields.io/azure-devops/build/mholt-dev/1e14e7f7-f929-4fec-a1db-fa5a3c0d4ca9/2/master.svg?label=cross-platform%20tests&style=flat-square"></a>
+# archiver [![archiver GoDoc](https://img.shields.io/badge/reference-godoc-blue.svg?style=flat-square)](https://pkg.go.dev/github.com/mholt/archiver?tab=doc) [![Ubuntu-latest](https://github.com/mholt/archiver/actions/workflows/ubuntu-latest.yml/badge.svg)](https://github.com/mholt/archiver/actions/workflows/ubuntu-latest.yml) [![Macos-latest](https://github.com/mholt/archiver/actions/workflows/macos-latest.yml/badge.svg)](https://github.com/mholt/archiver/actions/workflows/macos-latest.yml) [![Windows-latest](https://github.com/mholt/archiver/actions/workflows/windows-latest.yml/badge.svg)](https://github.com/mholt/archiver/actions/workflows/windows-latest.yml)
 
 Introducing **Archiver 3.1** - a cross-platform, multi-format archive utility and Go library. A powerful and flexible library meets an elegant CLI in this generic replacement for several platform-specific or format-specific archive utilities.