From 74c625f1d244641d52126058b6adb2ac041c77bf Mon Sep 17 00:00:00 2001
From: Radek Simko <radek.simko@gmail.com>
Date: Fri, 24 Jul 2020 17:59:16 +0100
Subject: [PATCH] Warn and skip invalid root module paths

---
 langserver/handlers/initialize.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/langserver/handlers/initialize.go b/langserver/handlers/initialize.go
index 0d8e1c7f..38b95241 100644
--- a/langserver/handlers/initialize.go
+++ b/langserver/handlers/initialize.go
@@ -85,7 +85,11 @@ func (lh *logHandler) Initialize(ctx context.Context, params lsp.InitializeParam
 		for _, rawPath := range cfgOpts.RootModulePaths {
 			rmPath, err := resolvePath(rootDir, rawPath)
 			if err != nil {
-				return serverCaps, err
+				jrpc2.ServerPush(ctx, "window/showMessage", &lsp.ShowMessageParams{
+					Type:    lsp.MTWarning,
+					Message: fmt.Sprintf("Ignoring root module path %s: %s", rawPath, err),
+				})
+				continue
 			}
 			rm, err := addAndLoadRootModule(rmPath)
 			if err != nil {