If OpenLink errors, show a dialog instead

If the command used by OSCommand.OpenLink fails, lazygit crashes. With this change, if the OpenLink command fails, lazygit just shows a dialog inviting the user to visit the relevant URL.

Fixes #2882

pkg/gui/information_panel.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/jesseduffield/lazygit/pkg/constants"
 	"github.com/jesseduffield/lazygit/pkg/gui/style"
+	"github.com/jesseduffield/lazygit/pkg/utils"
 	"github.com/mattn/go-runewidth"
 )
 
@@ -39,11 +40,28 @@ func (gui *Gui) handleInfoClick() error {
 		return activeMode.Reset()
 	}
 
+	var title, url string
+
 	// if we're not in an active mode we show the donate button
 	if cx <= runewidth.StringWidth(gui.c.Tr.Donate) {
-		return gui.os.OpenLink(constants.Links.Donate)
+		url = constants.Links.Donate
+		title = gui.c.Tr.Donate
 	} else if cx <= runewidth.StringWidth(gui.c.Tr.Donate)+1+runewidth.StringWidth(gui.c.Tr.AskQuestion) {
-		return gui.os.OpenLink(constants.Links.Discussions)
+		url = constants.Links.Discussions
+		title = gui.c.Tr.AskQuestion
 	}
+	err := gui.os.OpenLink(url)
+	if err != nil {
+		// Opening the link via the OS failed for some reason. (For example, this
+		// can happen if the `os.openLink` config key references a command that
+		// doesn't exist, or that errors when called.)
+		//
+		// In that case, rather than crash the app, fall back to simply showing a
+		// dialog asking the user to visit the URL.
+		placeholders := map[string]string{"url": url}
+		message := utils.ResolvePlaceholderString(gui.c.Tr.PleaseGoToURL, placeholders)
+		return gui.c.Alert(title, message)
+	}
+
 	return nil
 }

pkg/i18n/english.go

@@ -585,6 +585,7 @@ type TranslationSet struct {
 	MarkAsBaseCommit                    string
 	MarkAsBaseCommitTooltip             string
 	MarkedCommitMarker                  string
+	PleaseGoToURL                       string
 	Actions                             Actions
 	Bisect                              Bisect
 	Log                                 Log
@@ -1347,6 +1348,7 @@ func EnglishTranslationSet() TranslationSet {
 		MarkAsBaseCommit:                    "Mark commit as base commit for rebase",
 		MarkAsBaseCommitTooltip:             "Select a base commit for the next rebase; this will effectively perform a 'git rebase --onto'.",
 		MarkedCommitMarker:                  "↑↑↑ Will rebase from here ↑↑↑",
+		PleaseGoToURL:                       "Please go to {{.url}}",
 		Actions: Actions{
 			// TODO: combine this with the original keybinding descriptions (those are all in lowercase atm)
 			CheckoutCommit:                    "Checkout commit",

pkg/integration/tests/test_list.go

@@ -233,6 +233,7 @@ var tests = []*components.IntegrationTest{
 	ui.Accordion,
 	ui.DoublePopup,
 	ui.EmptyMenu,
+	ui.OpenLinkFailure,
 	ui.SwitchTabFromMenu,
 	undo.UndoCheckoutAndDrop,
 	undo.UndoDrop,

pkg/integration/tests/ui/open_link_failure.go

@@ -0,0 +1,24 @@
+package ui
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var OpenLinkFailure = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "When opening links via the OS fails, show a dialog instead.",
+	ExtraCmdArgs: []string{},
+	Skip:         false,
+	SetupConfig: func(config *config.AppConfig) {
+		config.UserConfig.OS.OpenLink = "exit 42"
+	},
+	SetupRepo: func(shell *Shell) {},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		t.Views().Information().Click(0, 0)
+
+		t.ExpectPopup().Confirmation().
+			Title(Equals("Donate")).
+			Content(Equals("Please go to https://github.com/sponsors/jesseduffield")).
+			Confirm()
+	},
+})