英文:
How to pipe npm install progress bar to the terminal in go?
问题
我已经尝试使用stdoutpipe和stderrpipe，如下所示。
shell := exec.Command("npm", args...)shell.Dir = cwdoutpipe, _ := shell.StdoutPipe()errpipe, _ := shell.StderrPipe()shell.Start()go func(pipe io.ReadCloser) {reader := bufio.NewReader(pipe)line, err := reader.ReadString('\n')for err == nil {fmt.Println(string(line))line, err = reader.ReadString('\n')}fmt.Println("exited")}(outpipe)go func(pipe io.ReadCloser) {reader := bufio.NewReader(pipe)line, err := reader.ReadString('\n')for err == nil {fmt.Println(string(line))line, err = reader.ReadString('\n')}fmt.Println("exited")}(errpipe)err := shell.Wait()if err != nil {fmt.Println(err)}
然而，我只得到以下输出：
added 87 packages, and audited 88 packages in 3s9 packages are looking for fundingrun `npm fund` for detailsfound 0 vulnerabilities
我该如何获得在控制台运行npm install时显示的安装进度条？
我还尝试了以下解决方案，并在运行shell.run()后打印缓冲区，但它也给出了与上面相同的输出。
shell := exec.Command(command, args...)shell.Dir = cwdvar stderr, stdout bytes.Buffershell.Stderr = &stderrshell.Stdout = &stdoutreturn shell, &stdout, &stderr
英文:
I have tried using stdoutpipe and stderrpipe like shown below.
shell := exec.Command("npm", args...)shell.Dir = cwdoutpipe, _ := shell.StdoutPipe()errpipe, _ := shell.StderrPipe()shell.Start()go func(pipe io.ReadCloser) {reader := bufio.NewReader(pipe)line, err := reader.ReadString('\n')for err == nil {fmt.Println(string(line))line, err = reader.ReadString('\n')}fmt.Println("exited")}(outpipe)go func(pipe io.ReadCloser) {reader := bufio.NewReader(pipe)line, err := reader.ReadString('\n')for err == nil {fmt.Println(string(line))line, err = reader.ReadString('\n')}fmt.Println("exited")}(errpipe)err := shell.Wait()if err != nil {fmt.Println(err)}
However I only get output:
added 87 packages, and audited 88 packages in 3s9 packages are looking for fundingrun `npm fund` for detailsfound 0 vulnerabilities
How do I get the installation progress bar that you get when you run npm install from the console?
I have also tried using a solution like below and printing the buffer after running shell.run() but it also gives the same output as the one above.
shell := exec.Command(command, args...)shell.Dir = cwdvar stderr, stdout bytes.Buffershell.Stderr = &stderrshell.Stdout = &stdoutreturn shell, &stdout, &stderr
答案1
得分: 1
已解决，感谢@Adrian的评论
cmd := exec.Command("npm", args...)
cmd.Dir = cwd
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
将输出重定向到os的标准输出和标准错误就是解决的关键。
英文:
Solved thanks @Adrian's comment
cmd := exec.Command("npm", args...)cmd.Dir = cwdcmd.Stdout = os.Stdoutcmd.Stderr = os.Stderr
Redirecting to os's stdout and stderr is what did the trick.
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