commit 207463e

Add a -version flag and display the version on start

Add a -version flag that displays the current senpai version and exits.

This makes use of the new Go 1.24 feature that embeds VCS information
in the binary.

See: https://tip.golang.org/doc/go1.24#go-command

 1@@ -18,6 +18,7 @@ import (
 2 	"os/exec"
 3 	"path/filepath"
 4 	"regexp"
 5+	"runtime/debug"
 6 	"strconv"
 7 	"strings"
 8 	"sync"
 9@@ -215,7 +216,7 @@ func NewApp(cfg Config) (app *App, err error) {
10 }
11 
12 func (app *App) Close() {
13-	app.win.Exit()       // tell all instances of app.ircLoop to stop when possible
14+	app.win.Exit() // tell all instances of app.ircLoop to stop when possible
15 	app.events <- event{ // tell app.eventLoop to stop
16 		src:     "*",
17 		content: nil,
18@@ -2316,6 +2317,14 @@ func formatSize(v int64) string {
19 	panic("unreachable")
20 }
21 
22+func BuildVersion() (string, bool) {
23+	if bi, ok := debug.ReadBuildInfo(); ok {
24+		return bi.Main.Version, true
25+	} else {
26+		return "", false
27+	}
28+}
29+
30 type ReadProgress struct {
31 	io.Reader
32 	period time.Duration

 1@@ -20,13 +20,24 @@ func main() {
 2 	var configPath string
 3 	var nickname string
 4 	var debug bool
 5+	var version bool
 6 	flag.StringVar(&configPath, "config", "", "path to the configuration file")
 7 	flag.StringVar(&nickname, "nickname", "", "nick name/display name to use")
 8 	flag.BoolVar(&debug, "debug", false, "show raw protocol data in the home buffer")
 9+	flag.BoolVar(&version, "version", false, "show version info")
10 	flag.Parse()
11 
12 	rand.Seed(time.Now().UnixNano())
13 
14+	if version {
15+		if v, ok := senpai.BuildVersion(); ok {
16+			fmt.Printf("senpai version %v\n", v)
17+		} else {
18+			fmt.Printf("senpai (unknown version)\n")
19+		}
20+		return
21+	}
22+
23 	if configPath == "" {
24 		configDir, err := os.UserConfigDir()
25 		if err != nil {

 1@@ -20,6 +20,9 @@ senpai - your everyday IRC student
 2 *-debug*
 3 	Advanced. Show all IRC messages that are received from/sent to the server.
 4 
 5+*-version*
 6+	Display version info.
 7+
 8 # DESCRIPTION
 9 
10 senpai is an IRC client made for bouncers.  It supports the newest IRC

 1@@ -9,13 +9,15 @@ import (
 2 	"git.sr.ht/~delthas/senpai/ui"
 3 )
 4 
 5-const welcomeMessage = "Welcome to senpai! To get started, use the Help buttons, or enter /help for a list of commands."
 6-
 7 func (app *App) initWindow() {
 8+	version, ok := BuildVersion()
 9+	if !ok {
10+		version = "(unknown version)"
11+	}
12 	app.win.AddBuffer("", "(home)", "")
13 	app.win.AddLine("", "", ui.Line{
14 		Head: "--",
15-		Body: ui.PlainString(welcomeMessage),
16+		Body: ui.PlainString(fmt.Sprintf("Welcome to senpai %v! To get started, use the Help buttons, or enter /help for a list of commands.", version)),
17 		At:   time.Now(),
18 	})
19 }