Set metadata and fix dl path

config/config.go

@@ -1,29 +1,46 @@
 package config
 
-import "os"
-
-var (
-	Feed = orEnv("FEED", "https://www.youtube.com/feeds/videos.xml?channel_id=UCwX0AEx-qIhQ9kgtlNhyIXw")
-	Root = orEnv("ROOT", "/tmp")
+import (
+	"local/args"
+	"local/sandbox/contact/contact"
+	"os"
 )
 
-func orEnv(k, v string) string {
-	if w, ok := os.LookupEnv(k); ok {
-		return w
-	}
-	return v
-}
+var (
+	Feed    string
+	Root    string
+	To      string
+	Subject string
+	Emailer *contact.Emailer
+)
 
-/*
-config = {
-   "path"      :  "../TV/Shepherds_Chapel"   ,
-   "rss"       :  "https://www.youtube.com/feeds/videos.xml?channel_id=UCwX0AEx-qIhQ9kgtlNhyIXw"   ,
-   "last"      :  0  ,
-   "lasttime"  : datetime.datetime(1999,1,1) ,
-   "onlynew"   :  False ,
-   "delay"     :  12 ,
-   "clear"     :  False ,
-   "logloc"    :  "./log"  ,
-   "idle"      :  False ,
+func init() {
+	os.Setenv("LC_ALL", "C.UTF-8")
+
+	as := args.NewArgSet()
+
+	as.Append(args.STRING, "to", "message recipient", "squeaky2x3@gmail.com")
+	as.Append(args.STRING, "subject", "message subject", "youtuber error")
+	as.Append(args.STRING, "from", "message sender", "breellocaldev@gmail.com")
+	as.Append(args.STRING, "password", "message sender password", "ML3WQRFSqe9rQ8qNkm")
+	as.Append(args.STRING, "smtp", "smtp server:port", "smtp.gmail.com:465")
+	as.Append(args.STRING, "pop3", "pop3 server:port", "pop.gmail.com:995")
+
+	as.Append(args.STRING, "feed", "feed URL", "https://www.youtube.com/feeds/videos.xml?channel_id=UCwX0AEx-qIhQ9kgtlNhyIXw")
+	as.Append(args.STRING, "root", "root to save videos", "/tmp")
+
+	if err := as.Parse(); err != nil {
+		panic(err)
+	}
+
+	Feed = as.Get("feed").GetString()
+	Root = as.Get("root").GetString()
+	To = as.Get("to").GetString()
+	Subject = as.Get("subject").GetString()
+	Emailer = &contact.Emailer{
+		From:     as.Get("from").GetString(),
+		SMTP:     as.Get("smtp").GetString(),
+		POP3:     as.Get("pop3").GetString(),
+		Password: as.Get("password").GetString(),
+	}
 }
-*/

main.go

@@ -14,7 +14,6 @@ import (
 )
 
 func main() {
-	os.Setenv("LC_ALL", "C.UTF-8")
 	client, err := youtubedl.New()
 	if err != nil {
 		panic(err)
@@ -24,6 +23,13 @@ func main() {
 		err := do(client)
 		if err != nil {
 			log.Println(err)
+			if err := config.Emailer.Send(
+				config.To,
+				config.Subject,
+				fmt.Sprintf("error getting youtuber: %v", err),
+			); err != nil {
+				panic(err)
+			}
 		}
 		log.Printf("sleeping until %v", time.Now().Add(interval))
 		time.Sleep(interval)
@@ -51,7 +57,7 @@ func do(client *youtubedl.Client) error {
 			log.Printf("already exists: %s", target)
 			continue
 		}
-		if err := client.Download(result.Link, path.Join(config.Root, target)); err != nil {
+		if err := client.Download(result.Link, target); err != nil {
 			errs += ", " + err.Error()
 		}
 	}

youtubedl/client.go

@@ -15,15 +15,41 @@ func New() (*Client, error) {
 }
 
 func (c *Client) Download(video, local string) error {
-	cmd := exec.Command("youtube-dl", "-f", "22", "-o", local, "--write-sub", "--write-auto-sub", "--sub-format", "srt", video)
-	log.Println(cmd.Path, cmd.Args)
-	out, err := cmd.CombinedOutput()
-	if err != nil {
-		err = fmt.Errorf("%v: %s", err, out)
+	errs := []error{}
+	for _, extras := range [][]string{
+		[]string{"--metadata-from-title", ".*[0-9]/[0-9][0-9] (?P<title>.+)"},
+		[]string{},
+	} {
+		args := append([]string{
+			"youtube-dl",
+			"-f",
+			"22",
+			"-o",
+			local,
+			"--write-sub",
+			"--write-auto-sub",
+			"--sub-format",
+			"srt",
+		}, extras...)
+		args = append(args, video)
+		cmd := exec.Command(args[0], args[1:]...)
+		log.Println(cmd.Path, cmd.Args)
+		out, err := cmd.CombinedOutput()
+		if err != nil {
+			log.Printf("failed with %v: %s", err, out)
+			errs = append(errs, fmt.Errorf("%v: %s", err, out))
+		} else {
+			log.Printf("passed with %s", out)
+			errs = nil
+			break
+		}
+	}
+	if len(errs) > 0 {
+		err := fmt.Errorf("%v", errs)
 		return err
 	}
-	cmd = exec.Command("python3", "-m", "vtt_to_srt", path.Dir(local))
-	out, err = cmd.CombinedOutput()
+	cmd := exec.Command("python3", "-m", "vtt_to_srt", path.Dir(local))
+	out, err := cmd.CombinedOutput()
 	if err != nil {
 		err = fmt.Errorf("%v: %s", err, out)
 		return err