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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| package mexos | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "io" | ||
| "os/exec" | ||
| "strings" | ||
| ) | ||
|
|
||
| // Implements nanobox-io's ssh.Client interface, but runs commands locally. | ||
| // This is used for kubernetes DIND or other local testing. | ||
| type sshLocal struct { | ||
| cmd *exec.Cmd | ||
| } | ||
|
|
||
| // Output returns the output of the command run on the remote host. | ||
| func (s *sshLocal) Output(command string) (string, error) { | ||
| cmd := exec.Command("sh", "-c", command) | ||
| out, err := cmd.CombinedOutput() | ||
| return string(out), err | ||
| } | ||
|
|
||
| // Shell requests a shell from the remote. If an arg is passed, it tries to | ||
| // exec them on the server. | ||
| func (s *sshLocal) Shell(args ...string) error { | ||
| cmd := exec.Command("sh", "-c", strings.Join(args, " ")) | ||
| return cmd.Run() | ||
| } | ||
|
|
||
| // Start starts the specified command without waiting for it to finish. You | ||
| // have to call the Wait function for that. | ||
| // | ||
| // The first two io.ReadCloser are the standard output and the standard | ||
| // error of the executing command respectively. The returned error follows | ||
| // the same logic as in the exec.Cmd.Start function. | ||
| func (s *sshLocal) Start(command string) (io.ReadCloser, io.ReadCloser, error) { | ||
| cmd := exec.Command("sh", "-c", command) | ||
| sout, err := cmd.StdoutPipe() | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
| errout, err := cmd.StderrPipe() | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
| err = cmd.Start() | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
| s.cmd = cmd | ||
| return sout, errout, nil | ||
| } | ||
|
|
||
| // Wait waits for the command started by the Start function to exit. The | ||
| // returned error follows the same logic as in the exec.Cmd.Wait function. | ||
| func (s *sshLocal) Wait() error { | ||
| if s.cmd == nil { | ||
| return fmt.Errorf("no command started") | ||
| } | ||
| err := s.cmd.Wait() | ||
| s.cmd = nil | ||
| return err | ||
| } |