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volume.go
36 lines (29 loc) · 785 Bytes
/
volume.go
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package main
import (
"errors"
"fmt"
"os"
"os/exec"
"syscall"
)
const volumeDiff = "3"
func runUser(command string, args ...string) error {
if len(users) == 0 {
return errors.New("Not found any usual user for changing volume")
}
user := users[0]
cmd := exec.Command(command, args...)
cmd.Env = append(os.Environ(), fmt.Sprint("XDG_RUNTIME_DIR=/run/user/", user.Uid))
cmd.SysProcAttr = &syscall.SysProcAttr{}
cmd.SysProcAttr.Credential = &syscall.Credential{Uid: user.Uid, Gid: user.Gid}
return cmd.Run()
}
func decVolume() error {
return runUser("amixer", "set", "Master", volumeDiff+"%-")
}
func incVolume() error {
return runUser("amixer", "set", "Master", volumeDiff+"%+")
}
func toggleVolume() error {
return runUser("amixer", "set", "Master", "toggle")
}