From 60db2715b7a5356a102d80bb22a3add834b00a53 Mon Sep 17 00:00:00 2001
From: slavek-kucera <53339291+slavek-kucera@users.noreply.github.com>
Date: Thu, 4 Nov 2021 15:29:23 +0100
Subject: [PATCH] fix: Language server crashes while trying to list
 inaccessible directory

---
 utils/src/native_path.cpp | 36 +++++++++++++++++++++---------------
 1 file changed, 21 insertions(+), 15 deletions(-)

diff --git a/utils/src/native_path.cpp b/utils/src/native_path.cpp
index 943db521b..6e5f26f90 100644
--- a/utils/src/native_path.cpp
+++ b/utils/src/native_path.cpp
@@ -42,21 +42,27 @@ std::filesystem::path canonical(const std::filesystem::path& p, std::error_code&
 }
 
 bool equal(const std::filesystem::path& left, const std::filesystem::path& right) { return left == right; }
-bool is_directory(const std::filesystem::path& p) { return std::filesystem::directory_entry(p).is_directory(); }
+bool is_directory(const std::filesystem::path& p)
+{
+    std::error_code ec;
+    std::filesystem::directory_entry d(p, ec);
+
+    return !ec && d.is_directory();
+}
 
 list_directory_rc list_directory_regular_files(
     const std::filesystem::path& d, std::function<void(const std::filesystem::path&)> h)
 {
-    std::filesystem::directory_entry dir(d);
+    try
+    {
+        std::filesystem::directory_entry dir(d);
 
-    if (!dir.exists())
-        return list_directory_rc::not_exists;
+        if (!dir.exists())
+            return list_directory_rc::not_exists;
 
-    if (!dir.is_directory())
-        return list_directory_rc::not_a_directory;
+        if (!dir.is_directory())
+            return list_directory_rc::not_a_directory;
 
-    try
-    {
         std::filesystem::directory_iterator it(dir);
 
         for (auto& p : it)
@@ -78,16 +84,16 @@ list_directory_rc list_directory_regular_files(
 list_directory_rc list_directory_subdirs_and_symlinks(
     const std::filesystem::path& d, std::function<void(const std::filesystem::path&)> h)
 {
-    std::filesystem::directory_entry dir(d);
+    try
+    {
+        std::filesystem::directory_entry dir(d);
 
-    if (!dir.exists())
-        return list_directory_rc::not_exists;
+        if (!dir.exists())
+            return list_directory_rc::not_exists;
 
-    if (!dir.is_directory())
-        return list_directory_rc::not_a_directory;
+        if (!dir.is_directory())
+            return list_directory_rc::not_a_directory;
 
-    try
-    {
         std::filesystem::directory_iterator it(dir);
 
         for (auto& p : it)