Delete utils/FileUpdate.

It is unused and it looks like it was never used.

llvm-svn: 211508

4 files changed, 2 insertions, 115 deletions

diff --git a/llvm/utils/FileUpdate/CMakeLists.txt b/llvm/utils/FileUpdate/CMakeLists.txt
deleted file mode 100644
index ce7478f77af..00000000000
--- a/llvm/utils/FileUpdate/CMakeLists.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-add_llvm_utility(FileUpdate
-  FileUpdate.cpp
-  )
-
-target_link_libraries(FileUpdate LLVMSupport)
diff --git a/llvm/utils/FileUpdate/FileUpdate.cpp b/llvm/utils/FileUpdate/FileUpdate.cpp
deleted file mode 100644
index c185dd05e0e..00000000000
--- a/llvm/utils/FileUpdate/FileUpdate.cpp
+++ /dev/null
@@ -1,87 +0,0 @@
-//===- FileUpdate.cpp - Conditionally update a file -----------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// FileUpdate is a utility for conditionally updating a file from its input
-// based on whether the input differs from the output. It is used to avoid
-// unnecessary modifications in a build system.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/PrettyStackTrace.h"
-#include "llvm/Support/Signals.h"
-#include "llvm/Support/ToolOutputFile.h"
-#include <system_error>
-using namespace llvm;
-
-static cl::opt<bool>
-Quiet("quiet", cl::desc("Don't print unnecessary status information"),
-      cl::init(false));
-
-static cl::opt<std::string>
-InputFilename("input-file", cl::desc("Input file (defaults to stdin)"),
-              cl::init("-"), cl::value_desc("filename"));
-
-static cl::opt<std::string>
-OutputFilename(cl::Positional, cl::desc("<output-file>"), cl::Required);
-
-int main(int argc, char **argv) {
-  sys::PrintStackTraceOnErrorSignal();
-  PrettyStackTraceProgram X(argc, argv);
-  cl::ParseCommandLineOptions(argc, argv);
-
-  if (OutputFilename == "-") {
-    errs() << argv[0] << ": error: Can't update standard output\n";
-    return 1;
-  }
-
-  // Get the input data.
-  std::unique_ptr<MemoryBuffer> In;
-  if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(InputFilename, In)) {
-    errs() << argv[0] << ": error: Unable to get input '"
-           << InputFilename << "': " << ec.message() << '\n';
-    return 1;
-  }
-
-  // Get the output data.
-  std::unique_ptr<MemoryBuffer> Out;
-  MemoryBuffer::getFile(OutputFilename.c_str(), Out);
-
-  // If the output exists and the contents match, we are done.
-  if (Out && In->getBufferSize() == Out->getBufferSize() &&
-      memcmp(In->getBufferStart(), Out->getBufferStart(),
-             Out->getBufferSize()) == 0) {
-    if (!Quiet)
-      errs() << argv[0] << ": Not updating '" << OutputFilename
-             << "', contents match input.\n";
-    return 0;
-  }
-
-  // Otherwise, overwrite the output.
-  if (!Quiet)
-    errs() << argv[0] << ": Updating '" << OutputFilename
-           << "', contents changed.\n";
-  std::string ErrorStr;
-  tool_output_file OutStream(OutputFilename.c_str(), ErrorStr,
-                             sys::fs::F_None);
-  if (!ErrorStr.empty()) {
-    errs() << argv[0] << ": Unable to write output '"
-           << OutputFilename << "': " << ErrorStr << '\n';
-    return 1;
-  }
-
-  OutStream.os().write(In->getBufferStart(), In->getBufferSize());
-
-  // Declare success.
-  OutStream.keep();
-
-  return 0;
-}
diff --git a/llvm/utils/FileUpdate/Makefile b/llvm/utils/FileUpdate/Makefile
deleted file mode 100644
index 1e6c0a838c2..00000000000
--- a/llvm/utils/FileUpdate/Makefile
+++ /dev/null
@@ -1,21 +0,0 @@
-##===- utils/FileUpdate/Makefile ---------------------------*- Makefile -*-===##
-#
-#                     The LLVM Compiler Infrastructure
-#
-# This file is distributed under the University of Illinois Open Source
-# License. See LICENSE.TXT for details.
-#
-##===----------------------------------------------------------------------===##
-
-LEVEL = ../..
-TOOLNAME = FileUpdate
-USEDLIBS = LLVMSupport.a
-
-# This tool has no plugins, optimize startup time.
-TOOL_NO_EXPORTS = 1
-
-# Don't install this utility
-NO_INSTALL = 1
-
-include $(LEVEL)/Makefile.common
-
diff --git a/llvm/utils/Makefile b/llvm/utils/Makefile
index ecb30bed7c6..04261923e1b 100644
--- a/llvm/utils/Makefile
+++ b/llvm/utils/Makefile
@@ -8,8 +8,8 @@
 ##===----------------------------------------------------------------------===##
 
 LEVEL = ..
-PARALLEL_DIRS := FileCheck FileUpdate TableGen PerfectShuffle \
-	      count fpcmp llvm-lit not unittest
+PARALLEL_DIRS := FileCheck TableGen PerfectShuffle count fpcmp llvm-lit not \
+                 unittest
 
 EXTRA_DIST := check-each-file codegen-diff countloc.sh \
               DSAclean.py DSAextract.py emacs findsym.pl GenLibDeps.pl \