Simplifying configuration via introducing a -work-dir option.

cmd/dwelling-radio/main.go

@@ -13,18 +13,17 @@ import (
 	"net/http"
 	"os"
 	"os/signal"
+	"path"
 	"syscall"
 
 	"git.arav.su/Arav/httpr"
 )
 
 var (
-	listenAddress    = flag.String("listen", "/var/run/dwelling-radio/sock", "listen address (ip:port|unix_path)")
-	filelistPath     = flag.String("filelist", "/mnt/data/appdata/radio/filelist.html", "path to a filelist.html file")
-	playlistPath     = flag.String("playlist", "", "path to a playlist")
-	fallbackSong     = flag.String("fallback-song", "", "path to a fallback song")
-	statisticsDbPath = flag.String("db", "/mnt/data/appdata/radio/statistics.db3", "path to a statistics database")
-	songListLen      = flag.Int64("list-length", 10, "number of songs to show in last N songs table")
+	listenAddress = flag.String("listen", "/var/run/dwelling-radio/sock", "listen address (ip:port|unix_path)")
+	workDirPath   = flag.String("work-dir", "/mnt/data/appdata/radio", "path to a working directory")
+	playlistName  = flag.String("playlist", "all-rand", "a playlist name")
+	songListLen   = flag.Int64("list-length", 10, "number of songs to show in last N songs table")
 
 	showVersion = flag.Bool("v", false, "show version")
 )
@@ -40,7 +39,7 @@ func main() {
 		return
 	}
 
-	stats, err := sqlite_stats.New(*statisticsDbPath)
+	stats, err := sqlite_stats.New(path.Join(*workDirPath, "statistics.db3"))
 	if err != nil {
 		log.Fatalln("Statistics:", err)
 	}
@@ -49,7 +48,7 @@ func main() {
 	currentSong := radio.Song{}
 	lstnrs := radio.NewListenerCounter()
 
-	plylst, err := radio.NewPlaylist(*playlistPath, true)
+	plylst, err := radio.NewPlaylist(path.Join(*workDirPath, "playlists", *playlistName), true)
 	if err != nil {
 		log.Fatalln(err)
 	}
@@ -68,14 +67,14 @@ func main() {
 	})
 
 	r.Handler(http.MethodGet, "/filelist", func(w http.ResponseWriter, r *http.Request) {
-		if *filelistPath == "" {
-			http.Error(w, "no filelist", http.StatusNotFound)
+		data, err := os.ReadFile(path.Join(*workDirPath, "filelist.html"))
+		if err != nil {
+			http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
 			return
 		}
 
 		w.Header().Add("Content-Type", "text/html")
 		w.Header().Add("Link", "<"+utils.Site(r.Host)+"/filelist>; rel=\"canonical\"")
-		data, _ := os.ReadFile(*filelistPath)
 		w.Write(data)
 	})
 
@@ -87,7 +86,7 @@ func main() {
 
 	r.ServeStatic("/assets/*filepath", web.Assets())
 
-	djh := ihttp.NewDJHandlers(lstnrs, plylst, stats, &currentSong, *songListLen, *fallbackSong)
+	djh := ihttp.NewDJHandlers(lstnrs, plylst, stats, &currentSong, *songListLen, path.Join(*workDirPath, "fallback.ogg"))
 
 	s := r.Sub("/api")
 

init/radio.service

@@ -8,10 +8,8 @@ Type=simple
 Restart=on-failure
 DynamicUser=yes
 ExecStart=/usr/bin/dwelling-radio -listen /var/run/dwelling-radio/sock \
-    -filelist /mnt/data/appdata/radio/filelist.html \
-    -playlist /mnt/data/appdata/radio/playlists/all-rand \
-    -fallback-song /mnt/data/appdata/radio/fallback.ogg \
-    -db /mnt/data/appdata/radio/statistics.db3 \
+    -work-dir /mnt/data/appdata/radio \
+    -playlist all-rand \
     -lst-len 10
 
 ReadOnlyPaths=/