Revert "Added support for different VFSs in format::getStyle."

This reverts commit r264253. It is breaking the buildbot http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-windows10pro-fast/builds/2203

llvm-svn: 264257

1 files changed, 7 insertions, 17 deletions

diff --git a/clang/lib/Format/Format.cpp b/clang/lib/Format/Format.cpp
index 6d03b629200..31dc259d4c5 100644
--- a/clang/lib/Format/Format.cpp
+++ b/clang/lib/Format/Format.cpp
@@ -2099,10 +2099,7 @@ static FormatStyle::LanguageKind getLanguageByFileName(StringRef FileName) {
 }
 
 FormatStyle getStyle(StringRef StyleName, StringRef FileName,
-                     StringRef FallbackStyle, vfs::FileSystem *FS) {
-  if (!FS) {
-    FS = vfs::getRealFileSystem().get();
-  }
+                     StringRef FallbackStyle) {
   FormatStyle Style = getLLVMStyle();
   Style.Language = getLanguageByFileName(FileName);
   if (!getPredefinedStyle(FallbackStyle, Style.Language, &Style)) {
@@ -2133,35 +2130,28 @@ FormatStyle getStyle(StringRef StyleName, StringRef FileName,
   llvm::sys::fs::make_absolute(Path);
   for (StringRef Directory = Path; !Directory.empty();
        Directory = llvm::sys::path::parent_path(Directory)) {
-
-    auto Status = FS->status(Directory);
-    if (!Status ||
-        Status->getType() != llvm::sys::fs::file_type::directory_file) {
+    if (!llvm::sys::fs::is_directory(Directory))
       continue;
-    }
-
     SmallString<128> ConfigFile(Directory);
 
     llvm::sys::path::append(ConfigFile, ".clang-format");
     DEBUG(llvm::dbgs() << "Trying " << ConfigFile << "...\n");
+    bool IsFile = false;
     // Ignore errors from is_regular_file: we only need to know if we can read
     // the file or not.
-    Status = FS->status(ConfigFile.str());
-    bool IsFile =
-        Status && (Status->getType() == llvm::sys::fs::file_type::regular_file);
+    llvm::sys::fs::is_regular_file(Twine(ConfigFile), IsFile);
+
     if (!IsFile) {
       // Try _clang-format too, since dotfiles are not commonly used on Windows.
       ConfigFile = Directory;
       llvm::sys::path::append(ConfigFile, "_clang-format");
       DEBUG(llvm::dbgs() << "Trying " << ConfigFile << "...\n");
-      Status = FS->status(ConfigFile.str());
-      IsFile = Status &&
-               (Status->getType() == llvm::sys::fs::file_type::regular_file);
+      llvm::sys::fs::is_regular_file(Twine(ConfigFile), IsFile);
     }
 
     if (IsFile) {
       llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Text =
-          FS->getBufferForFile(ConfigFile.str());
+          llvm::MemoryBuffer::getFile(ConfigFile.c_str());
       if (std::error_code EC = Text.getError()) {
         llvm::errs() << EC.message() << "\n";
         break;