[PATCH] D61519: [clangd] Support -fallback-style, similar to clang-format.

[Sam McCall via Phabricator via cfe-commits]

sammccall created this revision.
sammccall added a reviewer: kadircet.
Herald added subscribers: cfe-commits, arphaman, jkorous, MaskRay, ilya-biryukov.
Herald added a project: clang.

Repository:
  rCTE Clang Tools Extra

https://reviews.llvm.org/D61519

Files:
  clangd/tool/ClangdMain.cpp


Index: clangd/tool/ClangdMain.cpp
===================================================================
--- clangd/tool/ClangdMain.cpp
+++ clangd/tool/ClangdMain.cpp
@@ -16,6 +16,7 @@
 #include "index/Background.h"
 #include "index/Serialization.h"
 #include "clang/Basic/Version.h"
+#include "clang/Format/Format.h"
 #include "llvm/ADT/Optional.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/FileSystem.h"
@@ -231,6 +232,12 @@
     llvm::cl::desc("Enable clang-tidy diagnostics."),
     llvm::cl::init(true));
 
+static llvm::cl::opt<std::string>
+    FallbackStyle("fallback-style",
+                  llvm::cl::desc("clang-format style to apply by default when "
+                                 "no .clang-format file is found"),
+                  llvm::cl::init(clang::format::DefaultFallbackStyle));
+
 static llvm::cl::opt<bool> SuggestMissingIncludes(
     "suggest-missing-includes",
     llvm::cl::desc("Attempts to fix diagnostic errors caused by missing "
@@ -352,6 +359,8 @@
       llvm::errs() << "Ignoring -j because -run-synchronously is set.\n";
     WorkerThreadsCount = 0;
   }
+  if (FallbackStyle.getNumOccurrences())
+    clang::format::DefaultFallbackStyle = FallbackStyle.c_str();
 
   // Validate command line arguments.
   llvm::Optional<llvm::raw_fd_ostream> InputMirrorStream;


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