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