amfora/sysopen/open_browser_unix.go
2021-12-22 20:39:17 -05:00

40 lines
1.1 KiB
Go

//go:build linux || freebsd || netbsd || openbsd
// +build linux freebsd netbsd openbsd
//nolint:goerr113
package sysopen
import (
"fmt"
"os"
"os/exec"
)
// Open opens `path` in default system viewer. It tries to do so using
// xdg-open. It only works if there is a display server working.
func Open(path string) (string, error) {
var (
xorgDisplay = os.Getenv("DISPLAY")
waylandDisplay = os.Getenv("WAYLAND_DISPLAY")
xdgOpenPath, xdgOpenNotFoundErr = exec.LookPath("xdg-open")
)
switch {
case xorgDisplay == "" && waylandDisplay == "":
return "", fmt.Errorf("no display server was found. " +
"You may set a default command in the config")
case xdgOpenNotFoundErr == nil:
// Use start rather than run or output in order
// to make application run in background.
proc := exec.Command(xdgOpenPath, path)
if err := proc.Start(); err != nil {
return "", err
}
//nolint:errcheck
go proc.Wait() // Prevent zombies, see #219
return "Opened in default system viewer", nil
default:
return "", fmt.Errorf("could not determine default system viewer. " +
"Set a catch-all command in the config")
}
}