From b3eb63251fc5c1837a6ab341f6e93f8c011c53f5 Mon Sep 17 00:00:00 2001
From: Timon Ringwald <timon.ringwald@mequen.de>
Date: Mon, 29 Aug 2022 13:41:47 +0200
Subject: [PATCH] show version

---
 go.mod  | 2 ++
 go.sum  | 2 ++
 main.go | 9 +++++++++
 3 files changed, 13 insertions(+)

diff --git a/go.mod b/go.mod
index 3fcd4a9..aae31b8 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,5 @@
 module git.milar.in/milarin/loadenv
 
 go 1.18
+
+require git.milar.in/milarin/buildinfo v1.0.0
diff --git a/go.sum b/go.sum
index e69de29..780b53f 100644
--- a/go.sum
+++ b/go.sum
@@ -0,0 +1,2 @@
+git.milar.in/milarin/buildinfo v1.0.0 h1:tw98GupUYl/0a/3aPGuezhE4wseycOSsbcLp70hy60U=
+git.milar.in/milarin/buildinfo v1.0.0/go.mod h1:arI9ZoENOgcZcanv25k9y4dKDUhPp0buJrlVerGruas=
diff --git a/main.go b/main.go
index 5407cfa..3c135aa 100644
--- a/main.go
+++ b/main.go
@@ -8,6 +8,8 @@ import (
 	"os"
 	"os/exec"
 	"regexp"
+
+	"git.milar.in/milarin/buildinfo"
 )
 
 var (
@@ -15,11 +17,18 @@ var (
 
 	EnvVarRegex     = regexp.MustCompile(`^(.*?)=(.*?)$`)
 	EnvCommentRegex = regexp.MustCompile(`^[ \t]*#.*?$`)
+
+	ShowVersion = flag.Bool("v", false, "show version and exit")
 )
 
 func main() {
 	flag.Parse()
 
+	if *ShowVersion {
+		buildinfo.Print(buildinfo.Options{})
+		return
+	}
+
 	envFile, err := os.Open(*EnvFilePath)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "could not open file '%s': %s\n", *EnvFilePath, err.(*os.PathError).Err)