47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
//go:build !windows
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package vm
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import (
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"os/exec"
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"path/filepath"
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"strings"
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"syscall"
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"github.com/pkg/errors"
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)
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func prepareVMCmd(cmd *exec.Cmd) {
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// This is to prevent Ctrl+C propagating to the child process.
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cmd.SysProcAttr = &syscall.SysProcAttr{
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Setpgid: true,
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}
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}
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func terminateProcess(pid int) error {
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return syscall.Kill(-pid, syscall.SIGTERM)
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}
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// This is never used except for a band-aid that would check
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// that there are no double-mounts.
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func checkDeviceSeemsMounted(devPathPrefix string) (bool, error) {
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// Quite a bit hacky implementation, but it's to be used as a failsafe band-aid anyway.
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absDevPathPrefix, err := filepath.Abs(devPathPrefix)
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if err != nil {
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return false, errors.Wrap(err, "get abs path")
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}
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mounts, err := exec.Command("mount").Output()
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if err != nil {
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return false, errors.Wrap(err, "run mount command")
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}
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for _, line := range strings.Split(string(mounts), "\n") {
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// I know, I know, this is a rare band-aid.
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if strings.HasPrefix(line, devPathPrefix) || strings.HasPrefix(line, absDevPathPrefix) {
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return true, nil
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}
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}
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return false, nil
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}
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