feat: Added version command to CLI tool

cmd/root.go

@@ -16,6 +16,7 @@ var (
 	Verbose bool
 	ConcurrentDownloads int
 	BandwidthLimit int64
+	PrintVersion bool
 )
 
 var rootCmd = &cobra.Command{
@@ -36,6 +37,11 @@ var rootCmd = &cobra.Command{
 		downloader.Remux(vodOptions)
 	},
 	Args: func(cmd *cobra.Command, args[]string) error{
+		if PrintVersion {
+			versionCmd.Run(cmd, args)
+			os.Exit(1)
+		}
+
 		if len(args) < 1 {
 			return errors.New("Requires at least one arg(url)")
 		}
@@ -57,4 +63,7 @@ func Init() {
 	rootCmd.PersistentFlags().BoolVarP(&Verbose, "verbose", "v", false, "Verbose output")
 	rootCmd.PersistentFlags().IntVarP(&ConcurrentDownloads, "concurrent-download", "c", 1, "The amount of video segments downloaded at the same time.")
 	rootCmd.PersistentFlags().Int64VarP(&BandwidthLimit, "bwlimit", "b", math.MaxInt64, "Limits download speed, value is in kb/s")
+	rootCmd.PersistentFlags().BoolVar(&PrintVersion, "version", false, "Print software version")
+
+	rootCmd.AddCommand(versionCmd)
 }

cmd/version.go

@@ -0,0 +1,18 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+const VERSION string = "0.9.8"
+
+var versionCmd = &cobra.Command{
+	Use: "version",
+	Short: "Print the version number of twiVod",
+	Long: "Print the version number of twiVod",
+	Run: func(cmd *cobra.Command, args[]string) {
+		fmt.Printf("twiVod v%s\n", VERSION)
+	},
+}

utilities/downloader/twitchoauth.go

@@ -1,25 +1,27 @@
 package downloader
 
 import (
-    "net/http"
-    "net/url"
-    "html/template"
-    "io/ioutil"
+    "bufio"
     "bytes"
-    "sync"
-    "github.com/sequoiia/twivod/models"
     "encoding/json"
     "fmt"
-    "regexp"
-    "github.com/skratchdot/open-golang/open"
-    "os/exec"
-    "os"
+    "html/template"
+    "io/ioutil"
     "log"
+    "net/http"
+    "net/url"
+    "os"
+    "os/exec"
+    "regexp"
+    "sync"
+
     "github.com/GeertJohan/go.rice"
-    "github.com/sequoiia/twivod/internal/github.com/grafov/m3u8"
-    "bufio"
+    "github.com/codegangsta/negroni"
     "github.com/gorilla/mux"
-    "github.com/codegangsta/negroni")
+    "github.com/sequoiia/twivod/internal/github.com/grafov/m3u8"
+    "github.com/sequoiia/twivod/models"
+    "github.com/skratchdot/open-golang/open"
+)
 
 const CtxSpanID = 0