chore!: auto-update version via tag in ci

.github/workflows/go.yml

@@ -31,7 +31,19 @@ jobs:
         go-version: 1.21.9
 
     - name: Build for linux/arm
-      run: env GOOS=linux GOARCH=arm GOARM=6 go build -ldflags="-s -w" -o ./phocus -v main.go
+      run: |
+        if [[ $GITHUB_REF == refs/tags/* ]]; then
+          TAG_NAME="${GITHUB_REF#refs/tags/}"
+          echo "Current tag is $TAG_NAME"
+          env GOOS=linux GOARCH=arm GOARM=6 go build -ldflags="-X 'main.version=$TAG_NAME' -s -w" -o ./phocus -v main.go
+        else
+          echo "Not on a tag. The commit SHA is $GITHUB_SHA"
+          env GOOS=linux GOARCH=arm GOARM=6 go build -ldflags="-X 'main.version=$GITHUB_SHA' -s -w" -o ./phocus -v main.go
+        fi
+      env:
+        GITHUB_REF: ${{ github.ref }}
+        GITHUB_SHA: ${{ github.sha }}
+
   test:
     runs-on: ubuntu-latest
     needs: [build]

api/api.go

@@ -45,6 +45,7 @@ var upgrader = websocket.Upgrader{
 }
 
 // AddQPGSnMessages is the meat of the QueueQPGSn functionality
+// TODO refactor to take a number in for how many inverters
 func AddQPGSnMessages(timeBetween time.Duration) error {
 	QueueMutex.Lock()
 	if len(Queue) < 2 {

main.go

@@ -19,7 +19,7 @@ import (
 	serial "github.com/wolffshots/phocus/v2/serial"     // comms with inverter
 )
 
-const version = "v2.11.1"
+var version = "development"
 
 type Configuration struct {
 	Serial struct {
@@ -72,9 +72,12 @@ func Router(client mqtt.Client, profiling bool) error {
 func main() {
 	log.SetFlags(log.Ldate | log.Ltime | log.Lmicroseconds | log.Llongfile)
 	log.Println("Starting up phocus")
+	log.Printf("Phocus Version: %s\n\n", version)
 
 	configuration, err := ParseConfig("config.json")
 
+	// TODO log some other useful info here
+
 	// just give a chance to see the http server coming up
 	time.Sleep(3 * time.Second)
 

sensors/sensors.go

@@ -26,6 +26,7 @@ type Sensor struct {
 	Icon          string                     // "icon": "mdi:battery",
 }
 
+// TODO refactor to take a number in for how many inverters
 var sensors = []Sensor{
 	{
 		SensorTopic:   "homeassistant/sensor/phocus/version/config",