Revert "[llvm-cov] Add an -output-dir option for the show sub-command"

This reverts commit r273971. test/profile/instrprof-visibility.cpp is
failing because of an uncaught error in SafelyCloseFileDescriptor.

llvm-svn: 273978

llvm/tools/llvm-cov/SourceCoverageView.cpp

@@ -15,9 +15,7 @@
 #include "SourceCoverageViewText.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/StringExtras.h"
-#include "llvm/Support/FileSystem.h"
 #include "llvm/Support/LineIterator.h"
-#include "llvm/Support/Path.h"
 
 using namespace llvm;
 
@@ -36,49 +34,6 @@ std::string SourceCoverageView::formatCount(uint64_t N) {
   return Result;
 }
 
-/// \brief Create a file at ``Dir/ToplevelDir/@Path.Extension``. If
-/// \p ToplevelDir is empty, its path component is skipped.
-static Expected<std::unique_ptr<raw_ostream>>
-createFileInDirectory(StringRef Dir, StringRef ToplevelDir, StringRef Path,
-                      StringRef Extension) {
-  assert(Extension.size() && "The file extension may not be empty");
-
-  SmallString<256> FullPath(Dir);
-  if (!ToplevelDir.empty())
-    sys::path::append(FullPath, ToplevelDir);
-
-  auto PathBaseDir = sys::path::relative_path(sys::path::parent_path(Path));
-  sys::path::append(FullPath, PathBaseDir);
-
-  if (auto E = sys::fs::create_directories(FullPath))
-    return errorCodeToError(E);
-
-  auto PathFilename = (sys::path::filename(Path) + "." + Extension).str();
-  sys::path::append(FullPath, PathFilename);
-
-  std::error_code E;
-  auto OS = llvm::make_unique<raw_fd_ostream>(FullPath, E, sys::fs::F_RW);
-  if (E)
-    return errorCodeToError(E);
-  return std::move(OS);
-}
-
-Expected<std::unique_ptr<raw_ostream>>
-SourceCoverageView::createOutputStream(const CoverageViewOptions &Opts,
-                                       StringRef Path, StringRef Extension,
-                                       bool InToplevel) {
-  if (Opts.ShowOutputDirectory == "") {
-    std::error_code E;
-    auto OS = llvm::make_unique<raw_fd_ostream>("-", E, sys::fs::F_None);
-    if (E)
-      return errorCodeToError(E);
-    return std::move(OS);
-  }
-
-  return createFileInDirectory(Opts.ShowOutputDirectory,
-                               InToplevel ? "" : "coverage", Path, Extension);
-}
-
 void SourceCoverageView::addExpansion(
     const coverage::CounterMappingRegion &Region,
     std::unique_ptr<SourceCoverageView> View) {