refactor: use cobra (#515)

cmd/root.go

@@ -0,0 +1,49 @@
+package cmd
+
+import (
+	"log/slog"
+
+	"github.com/ayn2op/discordo/internal/config"
+	"github.com/ayn2op/discordo/internal/consts"
+	"github.com/ayn2op/discordo/internal/logger"
+	"github.com/spf13/cobra"
+	"github.com/zalando/go-keyring"
+)
+
+var (
+	discordState *State
+	app          *App
+)
+
+var (
+	rootCmd = &cobra.Command{
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if err := logger.Load(); err != nil {
+				return err
+			}
+
+			token, _ := cmd.Flags().GetString("token")
+			if token == "" {
+				var err error
+				token, err = keyring.Get(consts.Name, "token")
+				if err != nil {
+					slog.Info("failed to retrieve token from keyring", "err", err)
+				}
+			}
+
+			cfg, err := config.Load()
+			if err != nil {
+				return err
+			}
+
+			app = newApp(cfg)
+			return app.run(token)
+		},
+	}
+
+	Execute = rootCmd.Execute
+)
+
+func init() {
+	rootCmd.Flags().StringP("token", "t", "", "the authentication token")
+}

cmd/run.go

@@ -1,39 +0,0 @@
-package cmd
-
-import (
-	"log/slog"
-
-	"github.com/ayn2op/discordo/internal/config"
-	"github.com/ayn2op/discordo/internal/consts"
-	"github.com/ayn2op/discordo/internal/logger"
-	"github.com/zalando/go-keyring"
-)
-
-var (
-	discordState *State
-	app          *App
-)
-
-func Run(token string) error {
-	if err := logger.Load(); err != nil {
-		return err
-	}
-
-	// If no token was provided, look it up in the keyring.
-	if token == "" {
-		tok, err := keyring.Get(consts.Name, "token")
-		if err != nil {
-			slog.Info("failed to get token from keyring", "err", err)
-		} else {
-			token = tok
-		}
-	}
-
-	cfg, err := config.Load()
-	if err != nil {
-		return err
-	}
-
-	app = newApp(cfg)
-	return app.run(token)
-}

go.mod

@@ -3,13 +3,14 @@ module github.com/ayn2op/discordo
 go 1.24.0
 
 require (
-	github.com/BurntSushi/toml v1.4.0
+	github.com/BurntSushi/toml v1.5.0
 	github.com/atotto/clipboard v0.1.4
 	github.com/diamondburned/arikawa/v3 v3.4.0
 	github.com/diamondburned/ningen/v3 v3.0.1-0.20240808103805-f1a24c0da3d8
 	github.com/gdamore/tcell/v2 v2.8.1
 	github.com/rivo/tview v0.0.0-20241227133733-17b7edb88c57
 	github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966
+	github.com/spf13/cobra v1.9.1
 	github.com/yuin/goldmark v1.7.8
 	github.com/zalando/go-keyring v0.2.6
 )
@@ -21,10 +22,12 @@ require (
 	github.com/godbus/dbus/v5 v5.1.0 // indirect
 	github.com/gorilla/schema v1.4.1 // indirect
 	github.com/gorilla/websocket v1.5.3 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/mattn/go-runewidth v0.0.16 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/spf13/pflag v1.0.6 // indirect
 	github.com/twmb/murmur3 v1.1.8 // indirect
 	go4.org v0.0.0-20230225012048-214862532bf5 // indirect
 	golang.org/x/sys v0.31.0 // indirect

go.sum

@@ -18,8 +18,8 @@ cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiy
 cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/BurntSushi/toml v1.4.0 h1:kuoIxZQy2WRRk1pttg9asf+WVv6tWQuBNVmK8+nqPr0=
-github.com/BurntSushi/toml v1.4.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
+github.com/BurntSushi/toml v1.5.0 h1:W5quZX/G/csjUnuI8SUYlsHs9M38FC7znL0lIO+DvMg=
+github.com/BurntSushi/toml v1.5.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4=
 github.com/atotto/clipboard v0.1.4/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI=
@@ -28,6 +28,7 @@ github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWR
 github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
 github.com/danieljoos/wincred v1.2.2 h1:774zMFJrqaeYCK2W57BgAem/MLi6mtSE47MB6BOJ0i0=
 github.com/danieljoos/wincred v1.2.2/go.mod h1:w7w4Utbrz8lqeMbDAK0lkNJUv5sAOkFi7nd/ogr0Uh8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -82,6 +83,8 @@ github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/ad
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
+github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
+github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
 github.com/jstemmer/go-junit-report v0.9.1/go.mod h1:Brl9GWCQeLvo8nXZwPNNblvFj/XSXhF0NWZEnDohbsk=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
@@ -106,9 +109,14 @@ github.com/rivo/uniseg v0.4.3/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUc
 github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
 github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/rwcarlsen/goexif v0.0.0-20190401172101-9e8deecbddbd/go.mod h1:hPqNNc0+uJM6H+SuU8sEs5K5IQeKccPqeSjfgcKGgPk=
 github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966 h1:JIAuq3EEf9cgbU6AtGPK4CTG3Zf6CKMNqf0MHTggAUA=
 github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966/go.mod h1:sUM3LWHvSMaG192sy56D9F7CNvL7jUJVXoqM1QKLnog=
+github.com/spf13/cobra v1.9.1 h1:CXSaggrXdbHK9CF+8ywj8Amf7PBRmPCOJugH954Nnlo=
+github.com/spf13/cobra v1.9.1/go.mod h1:nDyEzZ8ogv936Cinf6g1RU9MRY64Ir93oCnqb9wxYW0=
+github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o=
+github.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.5.2 h1:xuMeJ0Sdp5ZMRXx/aWO6RZxdr3beISkG5/G/aIRr3pY=
 github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=

main.go

@@ -1,17 +1,13 @@
 package main
 
 import (
-	"flag"
 	"log/slog"
 
 	"github.com/ayn2op/discordo/cmd"
 )
 
 func main() {
-	token := flag.String("token", "", "authentication token")
-	flag.Parse()
-
-	if err := cmd.Run(*token); err != nil {
-		slog.Error(err.Error())
+	if err := cmd.Execute(); err != nil {
+		slog.Error("failed to execute command", "err", err)
 	}
 }