Add GH action for automatic releases

Author: fiam

.github/workflows/release.yml

@@ -0,0 +1,43 @@
+name: Publish release
+
+on:
+  push:
+    tags:
+      - 'v*'
+jobs:
+
+  publish:
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        go: [1.14]
+    name: ${{ matrix.os }} @ Go ${{ matrix.go }}
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Set up Go ${{ matrix.go }}
+        uses: actions/setup-go@v1
+        with:
+          go-version: ${{ matrix.go }}
+
+      - name: Set GOPATH, PATH and ENV
+        run: |
+          echo "::set-env name=GOPATH::$(dirname $GITHUB_WORKSPACE)"
+          echo "::set-env name=GO111MODULE::on"
+          echo "::set-env name=GOPROXY::https://proxy.golang.org"
+          echo "::add-path::$(dirname $GITHUB_WORKSPACE)/bin"
+        shell: bash
+
+      - name: Checkout Code
+        uses: actions/checkout@v2
+
+      - name: Build
+        run: ./make_release.sh
+
+      - name: Upload artifacts
+        uses: svenstaro/upload-release-action@v1-release
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: dist/*
+          file_glob: true
+          overwrite: true
+          tag: ${{ github.ref }}

main.go

@@ -22,12 +22,13 @@ const (
 )
 
 var (
-	debugFlag = false
+	debugFlag  = false
+	appVersion string
 )
 
 func main() {
 	app := cli.NewApp()
-	app.Version = "0.5"
+	app.Version = appVersion
 	app.Usage = "tool for managing .mcm character sets for MAX7456"
 	app.Flags = []cli.Flag{
 		&cli.BoolFlag{

make_release.sh

@@ -1,15 +1,21 @@
 #!/bin/bash
-VERSION=$(grep app.Version main.go | cut -d= -f 2 | tr -d '[:space:]"')
+
+set -e
+set -x
+
+REV=$(git rev-parse --short HEAD)
+TAG=$(git describe --tags)
+VERSION="${TAG} (${REV})"
 GO_OSARCH="darwin/amd64 linux/386 linux/amd64 linux/arm windows/386 windows/amd64"
 
 mkdir -p dist
 
 for v in ${GO_OSARCH}; do
 	GOOS=$(echo ${v} | cut -d/ -f 1)
 	GOARCH=$(echo ${v} | cut -d/ -f 2)
-	GOOS=${GOOS} GOARCH=${GOARCH} go build
+	GOOS=${GOOS} GOARCH=${GOARCH} go build -ldflags "-X \"main.appVersion=${VERSION}\""
 	exe=max7456tool
-	rel=max7456tool_${VERSION}_${GOOS}_${GOARCH}
+	rel=max7456tool_${TAG}_${GOOS}_${GOARCH}
 	if [ ${GOOS} = "windows" ]; then
 		exe=${exe}.exe
 		zip=${rel}.zip
@@ -22,4 +28,4 @@ for v in ${GO_OSARCH}; do
 	fi
 done
 
-go clean
+go clean