Update to go 1.22.x

* Update to math/rand/v2
* Adjust CI, Dockerfiles and docs

.github/workflows/code-coverage-upload.yml

@@ -17,7 +17,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: 1.21.x
+          go-version: 1.22.x
 
       - name: Run tests and write coverprofile
         shell: bash

.github/workflows/test-and-build.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v5
         with:
-          go-version: 1.21.x
+          go-version: 1.22.x
 
       - name: Run tests
         shell: bash

.github/workflows/test-pr.yml

@@ -6,7 +6,7 @@ jobs:
   run-tests:
     strategy:
       matrix:
-        go-version: [1.21.x]
+        go-version: [1.22.x]
         platform: [ubuntu-latest, macos-latest, windows-latest]
 
     runs-on: ${{ matrix.platform }}

README.md

@@ -59,7 +59,7 @@ in running a native Windows container.
 ## Building / Running
 
 Dependencies:
-  * [go](https://go.dev/doc/install) version 1.21 or later
+  * [go](https://go.dev/doc/install) version 1.22 or later
   * [git](https://git-scm.com/) (You can also download a .zip from Github)
 
 In order to download and build, open a terminal and execute:
@@ -137,4 +137,4 @@ original file.
 * [Trash Icon](https://www.iconfinder.com/icons/315225/trash_can_icon) - Made by [Yannick Lung](https://yannicklung.com)
 * [Undo Icon](https://www.iconfinder.com/icons/308948/arrow_undo_icon) - Made by [Ivan Boyko](https://www.iconfinder.com/visualpharm)
 * [Alarmclock Icon](https://www.iconfinder.com/icons/4280508/alarm_outlined_alert_clock_icon) - Made by [Kit of Parts](https://www.iconfinder.com/kitofparts)
-* https://www.iconfinder.com/icons/808399/load_turn_turnaround_icon TODO
+* https://www.iconfinder.com/icons/808399/load_turn_turnaround_icon TODO

go.mod

@@ -1,6 +1,6 @@
 module github.com/scribble-rs/scribble.rs
 
-go 1.21.3
+go 1.22.0
 
 require (
 	github.com/Bios-Marcel/discordemojimap/v2 v2.0.6-0.20231020161444-8c7f7fa6e5a6

internal/game/lobby.go

@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"log"
 	"math"
-	"math/rand"
+	"math/rand/v2"
 	"sort"
 	"strings"
 	"sync"

internal/game/words.go

@@ -4,7 +4,7 @@ import (
 	"embed"
 	"errors"
 	"fmt"
-	"math/rand"
+	"math/rand/v2"
 	"strings"
 	"unicode/utf8"
 

linux.Dockerfile

@@ -4,7 +4,7 @@
 # We explicitly use a certain major version of go, to make sure we don't build
 # with a newer verison than we are using for CI tests, as we don't directly
 # test the produced binary but from source code directly.
-FROM docker.io/golang:1.21.3 AS builder
+FROM docker.io/golang:1.22.0 AS builder
 WORKDIR /app
 
 # This causes caching of the downloaded go modules and makes repeated local

tools/simulate/main.go

@@ -6,7 +6,7 @@ import (
 	"fmt"
 	"io"
 	"log"
-	"math/rand"
+	"math/rand/v2"
 	"net/http"
 	"strings"
 	"time"
@@ -82,7 +82,6 @@ type SimPlayer struct {
 	Name        string
 	Usersession string
 	ws          *gws.Conn
-	rand        *rand.Rand
 }
 
 func (s *SimPlayer) WriteJSON(value any) error {
@@ -101,9 +100,9 @@ func (s *SimPlayer) SendRandomStroke() {
 		"toX":   rand.Float64(),
 		"toY":   rand.Float64(),
 		"color": map[string]any{
-			"r": rand.Intn(255),
-			"g": rand.Intn(255),
-			"b": rand.Intn(255),
+			"r": rand.Int32N(255),
+			"g": rand.Int32N(255),
+			"b": rand.Int32N(255),
 		},
 		"lineWidth": 5,
 	}); err != nil {
@@ -171,7 +170,6 @@ func JoinPlayer(lobbyId string) (*SimPlayer, error) {
 	return &SimPlayer{
 		Usersession: session,
 		ws:          wsConnection,
-		rand:        rand.New(rand.NewSource(time.Now().Unix())),
 	}, nil
 }
 

windows.Dockerfile

@@ -4,7 +4,7 @@
 # We explicitly use a certain major version of go, to make sure we don't build
 # with a newer verison than we are using for CI tests, as we don't directly
 # test the produced binary but from source code directly.
-FROM docker.io/golang:1.21.3-nanoserver-ltsc2022 AS builder
+FROM docker.io/golang:1.22.0-nanoserver-ltsc2022 AS builder
 WORKDIR /app
 
 # This causes caching of the downloaded go modules and makes repeated local