feat: Add version and help flag

Author: uanid

.gitignore

@@ -21,3 +21,4 @@
 go.work
 .idea/
 
+dist/

.goreleaser.yml

@@ -8,7 +8,7 @@ builds:
     env:
       - CGO_ENABLED=0
     ldflags:
-      - -s
+      - -s -X main.version={{ .Version }}
     goos:
       - linux
       - darwin

go.mod

@@ -2,4 +2,4 @@ module github.com/pubg/protoc-gen-debug
 
 go 1.20
 
-require google.golang.org/protobuf v1.31.1-0.20230727123859-6d0a5dbd9500 // indirect
+require google.golang.org/protobuf v1.31.1-0.20230727123859-6d0a5dbd9500

go.sum

@@ -1,8 +1,8 @@
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
+github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
-google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
-google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 google.golang.org/protobuf v1.31.1-0.20230727123859-6d0a5dbd9500 h1:7y2/WECm0zxQchjsPsWLAajGJ77KApK/0JpIaBOeDvk=
 google.golang.org/protobuf v1.31.1-0.20230727123859-6d0a5dbd9500/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=

main.go

@@ -2,6 +2,8 @@ package main
 
 import (
 	"flag"
+	"fmt"
+	"os"
 	"strings"
 
 	"google.golang.org/protobuf/compiler/protogen"
@@ -21,7 +23,19 @@ type PluginOptions struct {
 	Parameter  string
 }
 
+var version string = "develop"
+
 func main() {
+	if len(os.Args) == 2 {
+		if os.Args[1] == "--version" {
+			fmt.Println(version)
+		} else if os.Args[1] == "--help" {
+			fmt.Println("USAGE:")
+			fmt.Println("  protoc-gen-debug --version  : print version")
+		}
+		return
+	}
+
 	var flags flag.FlagSet
 	opts := protogen.Options{
 		ParamFunc: flags.Set,