cli/example/main.go
2021-07-07 08:00:01 -04:00

120 lines
2.9 KiB
Go

package main
import (
"bufio"
"context"
"flag"
"fmt"
"log"
"os"
"time"
"github.com/github/go-liveshare"
)
var workspaceIdFlag = flag.String("w", "", "workspace session id")
func init() {
flag.Parse()
}
func main() {
liveShare, err := liveshare.New(
liveshare.WithWorkspaceID(*workspaceIdFlag),
liveshare.WithToken(os.Getenv("CODESPACE_TOKEN")),
)
if err != nil {
log.Fatal(fmt.Errorf("error creating liveshare: %v", err))
}
ctx := context.Background()
liveShareClient := liveShare.NewClient()
if err := liveShareClient.Join(ctx); err != nil {
log.Fatal(fmt.Errorf("error joining liveshare with client: %v", err))
}
terminal, err := liveShareClient.NewTerminal()
if err != nil {
log.Fatal(fmt.Errorf("error creating liveshare terminal"))
}
containerID, err := getContainerID(ctx, terminal)
if err != nil {
log.Fatal(fmt.Errorf("error getting container id: %v", err))
}
if err := setupSSH(ctx, terminal, containerID); err != nil {
log.Fatal(fmt.Errorf("error setting up ssh: %v", err))
}
fmt.Println("Starting server...")
server, err := liveShareClient.NewServer()
if err != nil {
log.Fatal(fmt.Errorf("error creating server: %v", err))
}
fmt.Println("Starting sharing...")
if err := server.StartSharing(ctx, "sshd", 2222); err != nil {
log.Fatal(fmt.Errorf("error server sharing: %v", err))
}
portForwarder := liveshare.NewLocalPortForwarder(liveShareClient, server, 2222)
fmt.Println("Listening on port 2222")
if err := portForwarder.Start(ctx); err != nil {
log.Fatal(fmt.Errorf("error forwarding port: %v", err))
}
}
func setupSSH(ctx context.Context, terminal *liveshare.Terminal, containerID string) error {
cmd := terminal.NewCommand(
"/",
fmt.Sprintf("/usr/bin/docker exec -t %s /bin/bash -c \"echo -e \\\"testpwd1\\ntestpwd1\\n\\\" | sudo passwd codespace;/usr/local/share/ssh-init.sh\"", containerID),
)
stream, err := cmd.Run(ctx)
if err != nil {
return fmt.Errorf("error running command: %v", err)
}
scanner := bufio.NewScanner(stream)
scanner.Scan()
fmt.Println("> Debug:", scanner.Text())
if err := scanner.Err(); err != nil {
return fmt.Errorf("error scanning stream: %v", err)
}
if err := stream.Close(); err != nil {
return fmt.Errorf("error closing stream: %v", err)
}
time.Sleep(2 * time.Second)
return nil
}
func getContainerID(ctx context.Context, terminal *liveshare.Terminal) (string, error) {
cmd := terminal.NewCommand(
"/",
"/usr/bin/docker ps -aq --filter label=Type=codespaces --filter status=running",
)
stream, err := cmd.Run(ctx)
if err != nil {
return "", fmt.Errorf("error running command: %v", err)
}
scanner := bufio.NewScanner(stream)
scanner.Scan()
containerID := scanner.Text()
if err := scanner.Err(); err != nil {
return "", fmt.Errorf("error scanning stream: %v", err)
}
if err := stream.Close(); err != nil {
return "", fmt.Errorf("error closing stream: %v", err)
}
return containerID, nil
}