Import using video URL (#19)

Co-authored-by: Dirk Kelly <github@dirkkelly.com>

cmd/video.go

@@ -3,6 +3,7 @@ package cmd
 import (
 	"log"
 	"os"
+	"regexp"
 
 	"github.com/breadtubetv/bake/providers"
 	"github.com/spf13/cobra"
@@ -15,6 +16,23 @@ var videoCmd = &cobra.Command{
 	Short: "Import a video by ID",
 	Long:  `Import a YouTube video by ID and assign it to a creator.`,
 	Run: func(cmd *cobra.Command, args []string) {
+		if id == "" && url == "" {
+			log.Fatal("command must include either video ID or URL")
+		}
+		if id != "" && url != "" {
+			log.Fatal("both video ID and URL provided, expected only one")
+		}
+
+		if url != "" {
+			re := regexp.MustCompile(`(?:v|embed|watch\?v)(?:=|/)([^"&?/=%]{11})`)
+			if match := re.MatchString(url); match {
+				subs := re.FindStringSubmatch(url)
+				id = subs[1]
+			} else {
+				log.Fatal("the given URL is not a valid YouTube URL")
+			}
+		}
+
 		err := providers.ImportVideo(id, creator, os.ExpandEnv(viper.GetString("projectRoot")))
 		if err != nil {
 			log.Fatalf("could not import video: %v", err)
@@ -24,6 +42,7 @@ var videoCmd = &cobra.Command{
 
 var (
 	id       string
+	url      string
 	creator  string
 	provider string
 )
@@ -32,10 +51,10 @@ func init() {
 	importRootCmd.AddCommand(videoCmd)
 
 	videoCmd.Flags().StringVar(&id, "id", "", "ID of the video, e.g. xspEtjnSfQA is the ID for https://www.youtube.com/watch?v=xspEtjnSfQA")
+	videoCmd.Flags().StringVarP(&url, "url", "u", "", "URL of the video, e.g. https://www.youtube.com/watch?v=xspEtjnSfQA. Use instead of --id.")
 	videoCmd.Flags().StringVarP(&creator, "creator", "c", "", "Creator slug for the imported video")
 	videoCmd.Flags().StringVarP(&provider, "provider", "p", "", "Video provider to import from - e.g. youtube")
 
-	videoCmd.MarkFlagRequired("id")
 	videoCmd.MarkFlagRequired("creator")
 	videoCmd.MarkFlagRequired("provider")
 }