[PATCH] D104455: [clangd] Explicitly fail if the file passed to --check is not valid.

[Haojian Wu via Phabricator via cfe-commits]

hokein created this revision.
hokein added a reviewer: adamcz.
Herald added subscribers: usaxena95, kadircet, arphaman.
hokein requested review of this revision.
Herald added subscribers: MaskRay, ilya-biryukov.
Herald added a project: clang-tools-extra.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D104455

Files:
  clang-tools-extra/clangd/tool/ClangdMain.cpp


Index: clang-tools-extra/clangd/tool/ClangdMain.cpp
===================================================================
--- clang-tools-extra/clangd/tool/ClangdMain.cpp
+++ clang-tools-extra/clangd/tool/ClangdMain.cpp
@@ -909,7 +909,11 @@
 
   if (CheckFile.getNumOccurrences()) {
     llvm::SmallString<256> Path;
-    llvm::sys::fs::real_path(CheckFile, Path, /*expand_tilde=*/true);
+    if (auto Error =
+            llvm::sys::fs::real_path(CheckFile, Path, /*expand_tilde=*/true)) {
+      elog("Failed to resolve path {0}: {1}", CheckFile, Error.message());
+      return 1;
+    }
     log("Entering check mode (no LSP server)");
     uint32_t Begin = 0, End = std::numeric_limits<uint32_t>::max();
     if (!CheckFileLines.empty()) {


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