CI and portability (#15)

* Add github action for build and test

* Add working directory

* Split into build and test phases

Store binary from build.

* Add badge to readme

* Upload single file

* Move storing an artifact to only run on main

* Add extra flag to build

These should reduce the size of the binary produced.

.github/workflows/build.yml

@@ -0,0 +1,75 @@
+name: Go
+
+on: push
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Set up Go 1.x
+      uses: actions/setup-go@v2
+      with:
+        go-version: ^1.13
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Get dependencies
+      run: go mod download
+      working-directory: src
+
+    - name: Build
+      run: go build -v .
+      working-directory: src
+
+  unit_test:
+    name: Unit test
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Set up Go 1.x
+      uses: actions/setup-go@v2
+      with:
+        go-version: ^1.13
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Get dependencies
+      run: go mod download
+      working-directory: src
+
+    - name: Test
+      run: go test -v ./...
+      working-directory: src
+
+  store:
+    name: Store artifacts
+    runs-on: ubuntu-latest
+    needs: [build, unit_test]
+    if: github.ref == 'refs/heads/main'
+
+    steps:
+    - name: Set up Go 1.x
+      uses: actions/setup-go@v2
+      with:
+        go-version: ^1.13
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Get dependencies
+      run: go mod download
+      working-directory: src
+
+    - name: Build
+      run: "go build -ldflags='-w -s' -o dist/worklog -v ."
+      working-directory: src
+
+    - name: Archive production artifacts
+      uses: actions/upload-artifact@v2
+      with:
+        name: workflow-binary
+        path: src/dist

README.md

@@ -1,6 +1,9 @@
 # Worklog
 
-Intented to be a quick CLI to track what you have done each day.
+![Go](https://github.com/PossibleLlama/worklog/workflows/Go/badge.svg)
+
+Intented to be a quick productivity CLI tool, to track what you
+have done each day.
 
 ## ~/.worklog/config.yml