英文:
Get Git status from Go from a different directory
问题
我需要从另一个目录获取修改过的文件列表。
func main() {
    log.Println("Starting Site map")
    dir := "/media/my_path/ubuntu/"
    git0 := "git --git-dir=" + dir + ".git --work-tree=" + dir + " status"
    log.Println(git0) // <-- 在控制台中粘贴时有效
    cmd0 := exec.Command("git", git0)
    status0, err := cmd0.Output()
    if err != nil {
        log.Println(whereami.WhereAmI(), err)
    }
    log.Println(status0)
    git := "git --git-dir=" + dir + ".git --work-tree=" + dir
    log.Println(git)
    cmd := exec.Command("git", "status", git)
    status, err := cmd.Output()
    if err != nil {
        log.Println(whereami.WhereAmI(), err)
    }
    log.Println(status)
    log.Println("End Site map")
}
我得到了以下输出:
2021/05/24 11:38:07 Starting Site map
2021/05/24 11:38:07 git --git-dir=/media/my_path/ubuntu/.git --work-tree=/media/my_path/ubuntu/ status
2021/05/24 11:38:07 文件:main.go  函数:main.main  行:19 退出状态 1
2021/05/24 11:38:07 []
2021/05/24 11:38:07 git --git-dir=/media/my_path/ubuntu/.git --work-tree=/media/my_path/ubuntu/
2021/05/24 11:38:07 文件:main.go  函数:main.main  行:28 退出状态 128
2021/05/24 11:38:07 []
2021/05/24 11:38:07 End Site map
这个命令:git --git-dir=/media/my_path/ubuntu/.git --work-tree=/media/my_path/ubuntu/ status
在控制台中粘贴时可以正常工作。
预期结果应该是一个包含修改过的文件的数组。
英文:
I need to get a list of modified files from a different directory.
func main() {
	log.Println("Starting Site map")
	dir := "/media/my_path/ubuntu/"
	git0 := "git --git-dir=" + dir + ".git --work-tree=" + dir + " status"
	log.Println(git0) //<-- works when pasted in console
	cmd0 := exec.Command("git", git0)
	status0, err := cmd0.Output()
	if err != nil {
		log.Println(whereami.WhereAmI(), err)
	}
	log.Println(status0)
	git := "git --git-dir=" + dir + ".git --work-tree=" + dir
	log.Println(git)
	cmd := exec.Command("git", "status", git)
	status, err := cmd.Output()
	if err != nil {
		log.Println(whereami.WhereAmI(), err)
	}
	log.Println(status)
	log.Println("End Site map")
}
The I have the following output:
2021/05/24 11:38:07 Starting Site map
2021/05/24 11:38:07 git --git-dir=/media/my_path/ubuntu/.git --work-tree=/media/my_path/ubuntu/ status
2021/05/24 11:38:07 File: main.go  Function: main.main Line: 19 exit status 1
2021/05/24 11:38:07 []
2021/05/24 11:38:07 git --git-dir=/media/my_path/ubuntu/.git --work-tree=/media/my_path/ubuntu/
2021/05/24 11:38:07 File: main.go  Function: main.main Line: 28 exit status 128
2021/05/24 11:38:07 []
2021/05/24 11:38:07 End Site map
This command: git --git-dir=/media/my_path/ubuntu/.git --work-tree=/media/my_path/ubuntu/ status
It works fine when pasted into the console.
The expected result would be array containing modified files.
答案1
得分: 1
exec.Command接受一个命令和一些参数。
你正在使用'git'作为命令,并将'git ...'作为参数调用它,这将被执行为
git "git --git-dir ..."
这样是行不通的。
- 不要在参数中重复命令。
 - 使用单独的参数。
 - 提供git命令的路径。
 
每个参数应该是一个单独的字符串,用逗号分隔。
exec.Command("/path/to/git", "--git-dir="+dir+".git", "--work-tree="+dir, "status")
英文:
exec.Command takes a command and some arguments.
You’re calling it with ‘git’, then ‘git …’ as an argument, which is executed like
git "git --git-dir …"
which isn’t going to work.
- Don’t repeat the command in the argument.
 - Use individual arguments.
 - Provide the path to the git command.
 
Each argument should be a separate string comma separated.
exec.Command("/path/to/git", "--git-dir=" + dir + ".git", "--work-tree=" + dir, "status")
答案2
得分: 1
这是我为您翻译的内容:
这对我有效:
package main
import (
   "os"
   "os/exec"
)
func main() {
   c := exec.Command("git", "status")
   c.Dir = "/media/my_path/ubuntu"
   c.Stdout = os.Stdout
   c.Run()
}
https://golang.org/pkg/os/exec#Cmd.Dir
英文:
This works for me:
package main
import (
   "os"
   "os/exec"
)
func main() {
   c := exec.Command("git", "status")
   c.Dir = "/media/my_path/ubuntu"
   c.Stdout = os.Stdout
   c.Run()
}
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