chore: use go 1.22

.github/workflows/default.yml

@@ -1,7 +1,7 @@
 name: Default
 
 env:
-  GO_VERSION: ^1.21
+  GO_VERSION: ^1.22
 
 on:
   push:

.github/workflows/documentation.yml

@@ -1,7 +1,7 @@
 name: Deploy updated templates
 
 env:
-  GO_VERSION: ^1.21
+  GO_VERSION: ^1.22
 
 on:
   push:

.github/workflows/nightly.yml

@@ -1,7 +1,7 @@
 name: Nightly Build
 
 env:
-  GO_VERSION: ^1.21
+  GO_VERSION: ^1.22
 
 on:
   schedule: # runs on the default branch: master

.github/workflows/release.yml

@@ -1,7 +1,7 @@
 name: Release
 
 env:
-  GO_VERSION: ^1.21
+  GO_VERSION: ^1.22
 
 on:
   push:

.github/workflows/website.yml

@@ -1,7 +1,7 @@
 name: Deploy data to website
 
 env:
-  GO_VERSION: ^1.21
+  GO_VERSION: ^1.22
 
 on:
   push:

.golangci.yml

@@ -1,5 +1,5 @@
 run:
-  go: "1.21"
+  go: "1.22"
 
 issues:
   exclude:

Dockerfile

@@ -20,7 +20,7 @@ RUN make ui
 
 
 # STEP 2 build executable binary
-FROM --platform=$BUILDPLATFORM golang:1.21-alpine as builder
+FROM --platform=$BUILDPLATFORM golang:1.22-alpine as builder
 
 # Install git + SSL ca certificates.
 # Git is required for fetching the dependencies.

README.md

@@ -43,7 +43,7 @@ You'll find everything you need in our [documentation](https://docs.evcc.io/).
 
 ## Contribute
 
-To build evcc from source, [Go][1] 1.21 and [Node][2] 18 are required.
+To build evcc from source, [Go][1] 1.22 and [Node][2] 18 are required.
 
 Build and run go backend. The UI becomes available at http://127.0.0.1:7070/
 
@@ -135,5 +135,5 @@ While evcc is open source, we would also like to encourage vendors to provide op
 
 The personal sponsor token requires a [Github Sponsorship](https://github.com/sponsors/evcc-io) and can be requested at [sponsor.evcc.io](https://sponsor.evcc.io/).
 
-[1]: https://golang.org
+[1]: https://go.dev
 [2]: https://nodejs.org/

charger/versicharge.go

@@ -148,7 +148,7 @@ func (wb *Versicharge) CurrentPower() (float64, error) {
 	}
 
 	var sum float64
-	for i := 0; i < 3; i++ {
+	for i := range 3 {
 		sum += float64(binary.BigEndian.Uint16(b[2*i:]))
 	}
 

cmd/setup.go

@@ -235,7 +235,6 @@ func configureChargers(static []config.Named, names ...string) error {
 			continue
 		}
 
-		cc := cc
 		g.Go(func() error {
 			instance, err := charger.NewFromConfig(cc.Type, cc.Other)
 			if err != nil {
@@ -253,7 +252,6 @@ func configureChargers(static []config.Named, names ...string) error {
 	}
 
 	for _, conf := range configurable {
-		conf := conf
 		g.Go(func() error {
 			cc := conf.Named()
 
@@ -315,7 +313,6 @@ func configureVehicles(static []config.Named, names ...string) error {
 			continue
 		}
 
-		cc := cc
 		g.Go(func() error {
 			instance, err := vehicleInstance(cc)
 			if err != nil {
@@ -340,7 +337,6 @@ func configureVehicles(static []config.Named, names ...string) error {
 	devs2 := make([]config.ConfigurableDevice[api.Vehicle], 0, len(configurable))
 
 	for _, conf := range configurable {
-		conf := conf
 		g.Go(func() error {
 			cc := conf.Named()
 

go.mod

@@ -1,8 +1,6 @@
 module github.com/evcc-io/evcc
 
-go 1.21.1
-
-toolchain go1.21.3
+go 1.22.0
 
 require (
 	dario.cat/mergo v1.0.0

main.go

@@ -8,7 +8,6 @@ import (
 
 	"github.com/evcc-io/evcc/cmd"
 	"github.com/evcc-io/evcc/server/assets"
-	_ "github.com/evcc-io/evcc/util/goversion" // require minimum go version
 	_ "golang.org/x/crypto/x509roots/fallback" // fallback certificates
 )
 

util/templates/render_testing.go

@@ -37,6 +37,7 @@ func TestClass(t *testing.T, class Class, instantiate func(t *testing.T, values
 	t.Parallel()
 
 	for _, tmpl := range ByClass(class) {
+		// TODO allow usage in parallel tests without shadowing
 		tmpl := tmpl
 
 		// set default values for all params