56 lines
1.8 KiB
Go
56 lines
1.8 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 webbrowser
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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 `url` in default system browser. It tries to do so in two
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// ways (xdg-open and $BROWSER). It only works if there is a display
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// server working.
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//
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// bouncepaw: I tried to support TTYs as well. The idea was to open
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// a browser in foreground and return back to amfora after the browser
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// is closed. While all browsers I tested opened correctly (w3m, lynx),
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// I couldn't make it restore amfora correctly. The screen always ended
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// up distorted. None of my stunts with altscreen buffers helped.
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func Open(url string) (string, error) {
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var (
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// In prev versions there was also Xorg executable checked for.
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// I don't see any reason to check for it.
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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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envBrowser = os.Getenv("BROWSER")
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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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case xdgOpenNotFoundErr == nil: // Prefer xdg-open over $BROWSER
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// Use start rather than run or output in order
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// to make browser running in background.
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proc := exec.Command(xdgOpenPath, url)
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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 system default web browser", nil
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case envBrowser != "":
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proc := exec.Command(envBrowser, url)
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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 system default web browser", nil
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default:
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return "", fmt.Errorf("could not determine system browser")
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}
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}
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