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lazydocker/pkg/gui/subprocess.go

73 lines
1.5 KiB
Go

package gui
import (
"fmt"
"io/ioutil"
"os"
"os/exec"
"os/signal"
"strings"
"github.com/fatih/color"
"github.com/jesseduffield/lazydocker/pkg/utils"
)
func (gui *Gui) runSubprocess(cmd *exec.Cmd) error {
return gui.runSubprocessWithMessage(cmd, "")
}
func (gui *Gui) runSubprocessWithMessage(cmd *exec.Cmd, msg string) error {
gui.Mutexes.SubprocessMutex.Lock()
defer gui.Mutexes.SubprocessMutex.Unlock()
if err := gui.g.Suspend(); err != nil {
return gui.createErrorPanel(err.Error())
}
gui.PauseBackgroundThreads = true
gui.runCommand(cmd, msg)
if err := gui.g.Resume(); err != nil {
return gui.createErrorPanel(err.Error())
}
gui.PauseBackgroundThreads = false
return nil
}
func (gui *Gui) runCommand(cmd *exec.Cmd, msg string) {
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stdout
cmd.Stdin = os.Stdin
stop := make(chan os.Signal, 1)
defer signal.Stop(stop)
go func() {
signal.Notify(stop, os.Interrupt)
<-stop
if err := gui.OSCommand.Kill(cmd); err != nil {
gui.Log.Error(err)
}
}()
fmt.Fprintf(os.Stdout, "\n%s\n\n", utils.ColoredString("+ "+strings.Join(cmd.Args, " "), color.FgBlue))
if msg != "" {
fmt.Fprintf(os.Stdout, "\n%s\n\n", utils.ColoredString(msg, color.FgGreen))
}
if err := cmd.Run(); err != nil {
// not handling the error explicitly because usually we're going to see it
// in the output anyway
gui.Log.Error(err)
}
cmd.Stdin = nil
cmd.Stdout = ioutil.Discard
cmd.Stderr = ioutil.Discard
gui.promptToReturn()
}