grafana/grafana-kiosk

package initialize

import (
    "log"
    "os"
    "os/exec"
)

// LXDE runs shell commands to setup LXDE for kiosk mode.
func LXDE(path string) {
    var command = "/usr/bin/lxpanel"

    args := []string{"--profile", "LXDE"}
    runCommand(path, command, args, true)
    command = "/usr/bin/pcmanfm"
    args = []string{"--desktop", "--profile", "LXDE"}
    runCommand(path, command, args, true)
    command = "/usr/bin/xset"
    runCommand(path, command, args, true)
    args = []string{"s", "off"}
    runCommand(path, command, args, true)
    args = []string{"-dpms"}
    runCommand(path, command, args, true)
    args = []string{"s", "noblank"}
    runCommand(path, command, args, true)
    command = "/usr/bin/unclutter"
    displayEnv := os.Getenv("DISPLAY")
    args = []string{"-display", displayEnv, "-idle", "5"}

    go runCommand(path, command, args, true)
}

func runCommand(path string, command string, args []string, waitForEnd bool) {
    // check if command exists
    log.Printf("path: %v", path)
    log.Printf("command: %v", command)
    log.Printf("arg0: %v", args[0])
    cmd := exec.Command(command, args...)

    cmd.Env = append(os.Environ(),
        "DISPLAY=:0.0",
        "XAUTHORITY="+path+"/.Xauthority",
    )
    err := cmd.Start()

    if err != nil {
        // log.Printf(err)
        log.Printf("Error in output, ignoring...")
    }

    if waitForEnd {
        log.Printf("Waiting for command to finish...")

        err = cmd.Wait()

        if err != nil {
            log.Printf("Command finished with error: %v", err)
        }
    }
}