尝试从Go程序中启动外部编辑器 [英] Trying to launch an external editor from within a Go program

问题描述

我试图弄清楚如何从Go程序中启动外部编辑器，等待用户关闭编辑器，然后继续执行程序.基于这个这样的答案，我目前有这个代码:

I am trying to figure out how to launch an external editor from within a Go program, wait for the user to close the editor, and then continue execution of the program. Based on this SO answer, I currently have this code:

package main

import (
    "log"
    "os"
    "os/exec"
)

func main() {
    fpath := os.TempDir() + "/thetemporaryfile.txt"
    f, err := os.Create(fpath)
    if err != nil {
        log.Printf("1")
        log.Fatal(err)
    }
    f.Close()

    cmd := exec.Command("vim", fpath)
    err = cmd.Start()
    if err != nil {
        log.Printf("2")
        log.Fatal(err)
    }
    err = cmd.Wait()
    if err != nil {
        log.Printf("Error while editing. Error: %v\n", err)
    } else {
        log.Printf("Successfully edited.")
    }

}

运行程序时，我得到了:

When I run the program, I get this:

chris@DPC3:~/code/go/src/launcheditor$ go run launcheditor.go 
2012/08/23 10:50:37 Error while editing. Error: exit status 1
chris@DPC3:~/code/go/src/launcheditor$ 

我也尝试使用 exec.Run()代替 exec.Start()，但这似乎也不起作用(尽管它不起作用)在同一个地方失败).

I have also tried using exec.Run() instead of exec.Start(), but that doesn't seem to work either (though it doesn't fail at the same place).

如果我使用Gvim而不是Vim，我可以使它工作，但是它拒绝与Vim和nano一起工作.我认为这与在终端仿真器中运行而不是创建外部窗口的Vim和​​nano有关.

I can get it to work if I use Gvim instead of Vim, but it refuses to work with both Vim and nano. I think it's related to Vim and nano running inside the terminal emulator instead of creating an external window.

推荐答案

显然，您必须在 Stdin ， Stdout 和 Stderr 上设置 os.Std(in | out | err)的 Cmd 对象.像这样(假设对象称为 cmd ):

Apparently, you have to set Stdin, Stdout and Stderr on the Cmd object to os.Std(in|out|err). Like this (assuming that the object is called cmd):

cmd.Stdin = os.Stdin
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr

解决这个问题的信用归于freenode上#go-nuts上的家伙.

Credit for solving this goes to the guys on #go-nuts on freenode.

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