add cpu/mem profiling

.gitignore

@@ -1,4 +1,7 @@
 racecond*
+cpuprof*
+memprof*
+profile*pdf
 test/
 todo.txt
 stmp.toml

page_browser.go

@@ -184,9 +184,8 @@ func (ui *Ui) createBrowserPage(indexes *[]subsonic.SubsonicIndex) *BrowserPage
 			browserPage.handleToggleEntityStar()
 			return nil
 		}
-		// only makes sense to add to a playlist if there are playlists
 		if event.Rune() == 'A' {
-			//////////////////////////////////////
+			// only makes sense to add to a playlist if there are playlists
 			if ui.playlistPage.GetCount() > 0 {
 				ui.pages.ShowPage(PageAddToPlaylist)
 				ui.app.SetFocus(ui.addToPlaylistList)

stmps.go

@@ -6,8 +6,10 @@ package main
 import (
 	"flag"
 	"fmt"
+	"log"
 	"os"
 	"runtime"
+	"runtime/pprof"
 
 	"github.com/spezifisch/stmps/logger"
 	"github.com/spezifisch/stmps/mpvplayer"
@@ -40,12 +42,27 @@ func readConfig() {
 func main() {
 	help := flag.Bool("help", false, "Print usage")
 	enableMpris := flag.Bool("mpris", false, "Enable MPRIS2")
+	cpuprofile := flag.String("cpuprofile", "", "write cpu profile to `file`")
+	memprofile := flag.String("memprofile", "", "write memory profile to `file`")
+
 	flag.Parse()
 	if *help {
 		fmt.Printf("USAGE: %s <args>\n", os.Args[0])
 		flag.Usage()
 		os.Exit(0)
 	}
+	// cpu/memprofile code straight from https://pkg.go.dev/runtime/pprof
+	if *cpuprofile != "" {
+		f, err := os.Create(*cpuprofile)
+		if err != nil {
+			log.Fatal("could not create CPU profile: ", err)
+		}
+		defer f.Close() // error handling omitted for example
+		if err := pprof.StartCPUProfile(f); err != nil {
+			log.Fatal("could not start CPU profile: ", err)
+		}
+		defer pprof.StopCPUProfile()
+	}
 
 	readConfig()
 
@@ -108,4 +125,16 @@ func main() {
 	if err := ui.Run(); err != nil {
 		panic(err)
 	}
+
+	if *memprofile != "" {
+		f, err := os.Create(*memprofile)
+		if err != nil {
+			log.Fatal("could not create memory profile: ", err)
+		}
+		defer f.Close() // error handling omitted for example
+		runtime.GC()    // get up-to-date statistics
+		if err := pprof.WriteHeapProfile(f); err != nil {
+			log.Fatal("could not write memory profile: ", err)
+		}
+	}
 }