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	It misbehaves with absolute paths. (So does path::append().) Goes with clang r235787. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235788 91177308-0d34-0410-b5e6-96231b3b80d8
		
			
				
	
	
		
			83 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			83 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
//===-- Process.cpp - Implement OS Process Concept --------------*- C++ -*-===//
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//
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//                     The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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//  This file implements the operating system Process concept.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Config/config.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/Process.h"
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#include "llvm/Support/Program.h"
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using namespace llvm;
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using namespace sys;
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//===----------------------------------------------------------------------===//
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//=== WARNING: Implementation here must contain only TRULY operating system
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//===          independent code.
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//===----------------------------------------------------------------------===//
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Optional<std::string> Process::FindInEnvPath(const std::string& EnvName,
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                                             const std::string& FileName)
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{
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  assert(!path::is_absolute(FileName));
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  Optional<std::string> FoundPath;
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  Optional<std::string> OptPath = Process::GetEnv(EnvName);
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  if (!OptPath.hasValue())
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    return FoundPath;
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  const char EnvPathSeparatorStr[] = {EnvPathSeparator, '\0'};
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  SmallVector<StringRef, 8> Dirs;
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  SplitString(OptPath.getValue(), Dirs, EnvPathSeparatorStr);
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  for (const auto &Dir : Dirs) {
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    if (Dir.empty())
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      continue;
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    SmallString<128> FilePath(Dir);
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    path::append(FilePath, FileName);
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    if (fs::exists(Twine(FilePath))) {
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      FoundPath = FilePath.str();
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      break;
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    }
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  }
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  return FoundPath;
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}
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#define COLOR(FGBG, CODE, BOLD) "\033[0;" BOLD FGBG CODE "m"
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#define ALLCOLORS(FGBG,BOLD) {\
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    COLOR(FGBG, "0", BOLD),\
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    COLOR(FGBG, "1", BOLD),\
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    COLOR(FGBG, "2", BOLD),\
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    COLOR(FGBG, "3", BOLD),\
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    COLOR(FGBG, "4", BOLD),\
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    COLOR(FGBG, "5", BOLD),\
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    COLOR(FGBG, "6", BOLD),\
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    COLOR(FGBG, "7", BOLD)\
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  }
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static const char colorcodes[2][2][8][10] = {
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 { ALLCOLORS("3",""), ALLCOLORS("3","1;") },
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 { ALLCOLORS("4",""), ALLCOLORS("4","1;") }
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};
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// Include the platform-specific parts of this class.
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#ifdef LLVM_ON_UNIX
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#include "Unix/Process.inc"
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#endif
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#ifdef LLVM_ON_WIN32
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#include "Windows/Process.inc"
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#endif
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