feat: show version

.gitea/workflows/build.yaml

@@ -38,6 +38,8 @@ jobs:
               run: make lint
             - name: Build
               run: make build
+            - name: Version
+              run: ./build/joj3 -v
             - name: Test
               run: |
                   make prepare-test

cmd/healthcheck/main.go

@@ -35,9 +35,12 @@ func setupSlog() {
 	slog.SetDefault(logger)
 }
 
+var Version string
+
 // Generally, err is used for runtime errors, and checkRes is used for the result of the checks.
 func main() {
 	var gitWhitelist, metaFile, releaseTags []string
+	showVersion := flag.Bool("v", false, "print current version")
 	rootDir := flag.String("root", "", "")
 	repo := flag.String("repo", "", "")
 	localList := flag.String("localList", "", "")
@@ -50,6 +53,10 @@ func main() {
 	parseMultiValueFlag(&metaFile, "meta", "")
 	parseMultiValueFlag(&releaseTags, "releaseTags", "")
 	flag.Parse()
+	if *showVersion {
+		fmt.Println(Version)
+		return
+	}
 	setupSlog()
 	var err error
 	err = healthcheck.RepoSize()

cmd/joj3/main.go

@@ -3,6 +3,7 @@ package main
 import (
 	"encoding/json"
 	"flag"
+	"fmt"
 	"log/slog"
 	"os"
 
@@ -92,16 +93,23 @@ func outputResult(outputPath string, results []stage.StageResult) error {
 var (
 	metaConfPath string
 	msg          string
+	showVersion  *bool
+	Version      string
 )
 
 func init() {
 	flag.StringVar(&metaConfPath, "meta-conf", "meta-conf.toml", "meta config file path")
 	flag.StringVar(&msg, "msg", "", "message to trigger the running, leave empty to use git commit message on HEAD")
+	showVersion = flag.Bool("v", false, "print current version")
 }
 
 func mainImpl() error {
 	setupSlog(int(slog.LevelInfo)) // before conf is loaded
 	flag.Parse()
+	if *showVersion {
+		fmt.Println(Version)
+		return nil
+	}
 	if msg == "" {
 		var err error
 		msg, err = getCommitMsg()

cmd/sample/main.go

@@ -9,9 +9,16 @@ import (
 	"github.com/joint-online-judge/JOJ3/pkg/sample"
 )
 
+var Version string
+
 func main() {
+	showVersion := flag.Bool("v", false, "print current version")
 	score := flag.Int("score", 0, "score")
 	flag.Parse()
+	if *showVersion {
+		fmt.Println(Version)
+		return
+	}
 	res, err := sample.Run(sample.Conf{Score: *score})
 	if err != nil {
 		fmt.Fprint(os.Stderr, err)