/
main.go
133 lines (115 loc) · 2.47 KB
/
main.go
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package main
import (
"flag"
"fmt"
"gotube"
"io"
"log"
"os"
"strings"
"time"
"github.com/cheggaaa/pb"
)
//var wg = &sync.WaitGroup{}
//var ch = make(chan bool, 5)
func main() {
u := flag.String("u", "", "youtube url")
fn := flag.String("f", "", "override download filename, default is video's title")
flag.Parse()
url := *u
if url == "" {
flag.Usage()
fmt.Println()
fmt.Println("You can also set `http_proxy` enviroment variable to download by proxy")
return
}
url = strings.Replace(url, `https://`, `http://`, -1)
client := gotube.NewClient()
info, err := client.GetInfo(url)
if err != nil {
fmt.Println(err)
return
}
fmt.Println(info.Title)
for i, v := range info.AvailableDownloadInfo {
fmt.Println(i, v.Type)
}
var selection int
fmt.Print("Please select download type:")
fmt.Scanf("%d", &selection)
if selection > len(info.AvailableDownloadInfo) {
fmt.Println("no such selection!")
return
}
fmt.Print("You select:", info.AvailableDownloadInfo[selection].Type, "\nAre you sure(y/n):")
var sure string
fmt.Scan(&sure)
if sure != "y" {
fmt.Println("Bye.")
return
}
filename := ""
if *fn == "" {
filename = info.Title + "." + info.AvailableDownloadInfo[selection].FileExtension
} else {
filename = *fn + "." + info.AvailableDownloadInfo[selection].FileExtension
}
download(client, info.AvailableDownloadInfo[selection].Url, filename)
}
func download(c *gotube.Client, url, filename string) {
f, err := os.Create(filename)
if err != nil {
log.Println(err)
return
}
defer f.Close()
resp, err := c.Get(url)
if err != nil {
log.Println(err)
return
}
defer resp.Body.Close()
fmt.Println("downloading file " + filename)
fmt.Println("size:", resp.ContentLength)
mycopy(f, resp.Body, resp.ContentLength)
}
func mycopy(dst io.Writer, src io.Reader, total int64) {
s := 0
b := make([]byte, 4096)
stop := false
bar := pb.StartNew(int(total))
bar.ShowSpeed = true
go func() {
for !stop {
time.Sleep(time.Second)
bar.Set(s)
bar.Update()
//log.Printf("%d/%d %dk/s\n", s, total, int(float64(s)/1024.0/time.Now().Sub(start).Seconds()))
}
}()
defer func() {
stop = true
bar.Set(s)
bar.Update()
if int64(s) == total {
bar.FinishPrint("Finished!")
} else {
bar.FinishPrint("something wrong!")
}
}()
for {
n, err := src.Read(b)
if n > 0 {
s += n
_, err := dst.Write(b[:n])
if err != nil {
//log.Println(err)
return
}
}
if err != nil {
//log.Println(err)
return
}
}
}