chore: move version printing to separate flag

Now version is printable through `--version/-v` flag at the root.

Author: ffenix113

cmd/zigbee/firmware/root.go

@@ -1,11 +1,6 @@
 package firmware
 
 import (
-	"errors"
-	"log"
-	"runtime/debug"
-	"slices"
-
 	"github.com/urfave/cli/v2"
 )
 
@@ -23,37 +18,5 @@ func RootCmd() *cli.Command {
 				Usage: "change the working directory for the build process (currently does not do anything)",
 			},
 		},
-		Before: func(ctx *cli.Context) error {
-			buildInfo, ok := debug.ReadBuildInfo()
-			if !ok {
-				return errors.New("could not read build information")
-			}
-
-			vcsProps := make([]debug.BuildSetting, 0, 2)
-
-			for _, setting := range buildInfo.Settings {
-				if !slices.Contains([]string{"vcs.revision", "vcs.modified"}, setting.Key) {
-					continue
-				}
-
-				vcsProps = append(vcsProps, setting)
-				if len(vcsProps) == 3 {
-					break
-				}
-			}
-
-			slices.SortFunc(vcsProps, func(a, b debug.BuildSetting) int {
-				if a.Key > b.Key {
-					return 1
-				}
-
-				return -1
-			})
-
-			// Information that will help with investigation of issues
-			log.Printf("build info: %s/%s, %s", buildInfo.GoVersion, buildInfo.Main.Version, vcsProps)
-
-			return nil
-		},
 	}
 }

cmd/zigbee/main.go

@@ -2,8 +2,11 @@ package main
 
 import (
 	"context"
+	"errors"
 	"log"
 	"os"
+	"runtime/debug"
+	"slices"
 
 	"github.com/ffenix113/zigbee_home/cmd/zigbee/firmware"
 	"github.com/urfave/cli/v2"
@@ -23,6 +26,19 @@ func main() {
 				Name:  "config",
 				Value: "zigbee.yaml",
 			},
+			&cli.BoolFlag{
+				Name:    "version",
+				Aliases: []string{"v"},
+			},
+		},
+		Action: func(ctx *cli.Context) error {
+			if ctx.Bool("version") {
+				return printVersion()
+			}
+
+			cli.ShowAppHelpAndExit(ctx, 0)
+
+			return nil
 		},
 	}
 
@@ -31,3 +47,36 @@ func main() {
 		os.Exit(1)
 	}
 }
+
+func printVersion() error {
+	buildInfo, ok := debug.ReadBuildInfo()
+	if !ok {
+		return errors.New("could not read build information")
+	}
+
+	vcsProps := make([]debug.BuildSetting, 0, 2)
+
+	for _, setting := range buildInfo.Settings {
+		if !slices.Contains([]string{"vcs.revision", "vcs.modified"}, setting.Key) {
+			continue
+		}
+
+		vcsProps = append(vcsProps, setting)
+		if len(vcsProps) == cap(vcsProps) {
+			break
+		}
+	}
+
+	slices.SortFunc(vcsProps, func(a, b debug.BuildSetting) int {
+		if a.Key > b.Key {
+			return 1
+		}
+
+		return -1
+	})
+
+	// Information that will help with investigation of
+	log.Printf("%s, tag:%s, version:%s", buildInfo.GoVersion, buildInfo.Main.Version, vcsProps)
+
+	return nil
+}