feat: add cli help menus

cmd/rip/main.go

@@ -25,10 +25,34 @@ func main() {
 		fmt.Fprintf(os.Stderr, "option error: %v\n", err)
 		os.Exit(2)
 	}
+	if gopts.help {
+		printMainHelp(os.Stdout)
+		return
+	}
 	if gopts.command == "" {
-		fmt.Println("usage: rip <command>")
-		fmt.Println("commands: url, file, config, database, id, search, lastfm")
-		fmt.Println("tip: run `rip dev-help` to list developer smoke commands")
+		printMainHelp(os.Stdout)
+		os.Exit(2)
+	}
+	if gopts.command == "help" {
+		if len(gopts.commandArgs) == 0 || isHelpArg(gopts.commandArgs[0]) {
+			printMainHelp(os.Stdout)
+			return
+		}
+		if printCommandHelp(os.Stdout, gopts.commandArgs[0]) {
+			return
+		}
+		fmt.Fprintf(os.Stderr, "unknown help topic: %s\n", gopts.commandArgs[0])
+		os.Exit(2)
+	}
+	if gopts.command == "dev-help" {
+		printDeveloperHelp(os.Stdout)
+		return
+	}
+	if commandWantsHelp(gopts.commandArgs) {
+		if printCommandHelp(os.Stdout, gopts.command) {
+			return
+		}
+		fmt.Fprintf(os.Stderr, "unknown command: %s\n", gopts.command)
 		os.Exit(2)
 	}
 
@@ -64,17 +88,11 @@ func main() {
 
 	switch os.Args[1] {
 	case "dev-help":
-		fmt.Println("developer smoke commands:")
-		fmt.Println("  soundcloud-smoke")
-		fmt.Println("  qobuz-smoke, qobuz-rip-smoke, qobuz-convert-rip-smoke")
-		fmt.Println("  qobuz-album-rip-smoke, qobuz-playlist-rip-smoke, qobuz-artist-rip-smoke, qobuz-label-rip-smoke")
-		fmt.Println("  qobuz-search-smoke")
-		fmt.Println("  tidal-search-smoke, tidal-metadata-smoke, tidal-video-smoke")
-		fmt.Println("  tidal-rip-smoke, tidal-album-rip-smoke, tidal-playlist-rip-smoke, tidal-artist-rip-smoke")
+		printDeveloperHelp(os.Stdout)
 		return
 	case "url":
 		if len(os.Args) < 3 {
-			fmt.Println("usage: rip url <url...> [--force|--ignore-db]")
+			printCommandHelp(os.Stdout, "url")
 			os.Exit(2)
 		}
 
@@ -119,7 +137,7 @@ func main() {
 		fmt.Printf("url rip complete (%d item(s))\n", added)
 	case "file":
 		if len(os.Args) < 3 {
-			fmt.Println("usage: rip file <path> [--force|--ignore-db]")
+			printCommandHelp(os.Stdout, "file")
 			os.Exit(2)
 		}
 
@@ -192,7 +210,7 @@ func main() {
 		fmt.Printf("file rip complete (%d item(s))\n", added)
 	case "config":
 		if len(os.Args) < 3 {
-			fmt.Println("usage: rip config <open|reset|path> [options]")
+			printCommandHelp(os.Stdout, "config")
 			os.Exit(2)
 		}
 		switch os.Args[2] {
@@ -258,7 +276,7 @@ func main() {
 		}
 	case "database":
 		if len(os.Args) < 4 || os.Args[2] != "browse" {
-			fmt.Println("usage: rip database browse <downloads|failed>")
+			printCommandHelp(os.Stdout, "database")
 			os.Exit(2)
 		}
 		table := strings.ToLower(strings.TrimSpace(os.Args[3]))
@@ -294,7 +312,7 @@ func main() {
 		}
 	case "id":
 		if len(os.Args) < 5 {
-			fmt.Println("usage: rip id <source> <track|album|playlist|artist|label|chart|video> <id> [quality] [--force|--ignore-db]")
+			printCommandHelp(os.Stdout, "id")
 			os.Exit(2)
 		}
 
@@ -354,7 +372,7 @@ func main() {
 		var sopts searchOptions
 		if len(os.Args) < 5 {
 			if !term.IsTerminal(int(os.Stdin.Fd())) {
-				fmt.Println("usage: rip search <qobuz|tidal|deezer|yandex|beatport|soundcloud> <track|album|playlist|artist|label|chart|video> <query...> [--limit N] [--force|--ignore-db] [--no-download]")
+				printCommandHelp(os.Stdout, "search")
 				os.Exit(2)
 			}
 			source, mediaType, sopts, err = promptSearchInteractive(cfg.Session.CLI.MaxSearchResults)
@@ -549,7 +567,7 @@ func main() {
 		opts, parseErr := parseLastFMArgs(os.Args[2:], cfg.Session.LastFM.Source, cfg.Session.LastFM.FallbackSource)
 		if parseErr != nil {
 			fmt.Fprintf(os.Stderr, "lastfm option error: %v\n", parseErr)
-			fmt.Println("usage: rip lastfm [--source SOURCE] [--fallback-source SOURCE] <playlist_url>")
+			printCommandHelp(os.Stdout, "lastfm")
 			os.Exit(2)
 		}