67 lines
1.1 KiB
Go
67 lines
1.1 KiB
Go
//go:build !windows
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package externalcmd
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import (
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"errors"
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"fmt"
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"os"
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"os/exec"
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"syscall"
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"github.com/kballard/go-shellquote"
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)
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func (c *Cmd) runOSSpecific(cmdstr string, env []string) error {
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cmdParts, err := shellquote.Split(cmdstr)
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if err != nil {
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return err
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}
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for i, part := range cmdParts {
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cmdParts[i] = expandEnv(part, c.Env)
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}
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cmd := exec.Command(cmdParts[0], cmdParts[1:]...)
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cmd.Env = env
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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// set process group in order to allow killing subprocesses
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cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
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err = cmd.Start()
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if err != nil {
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return err
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}
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cmdDone := make(chan int)
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go func() {
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cmdDone <- func() int {
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err2 := cmd.Wait()
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if err2 == nil {
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return 0
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}
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if ee, ok := errors.AsType[*exec.ExitError](err2); ok {
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ee.ExitCode()
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}
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return 0
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}()
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}()
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select {
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case <-c.terminate:
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// the minus is needed to kill all subprocesses
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syscall.Kill(-cmd.Process.Pid, syscall.SIGINT) //nolint:errcheck
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<-cmdDone
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return errTerminated
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case c := <-cmdDone:
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if c != 0 {
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return fmt.Errorf("command exited with code %d", c)
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}
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return nil
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}
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}
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