Merging r257648:

[oota-llvm.git] / lib / Support / Process.cpp

diff --git a/lib/Support/Process.cpp b/lib/Support/Process.cpp
index 88ca7c3f220fa3ee1dc7f430ce062242a26f79f1..6dcbb47e87d0a9fbfa4f8dc0f3e2e8ca5d65762c 100644 (file)
--- a/lib/Support/Process.cpp
+++ b/lib/Support/Process.cpp
@@ -7,14 +7,18 @@
 //
 //===----------------------------------------------------------------------===//
 //
-//  This header file implements the operating system Process concept.
+//  This file implements the operating system Process concept.
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm/Support/Process.h"
+#include "llvm/ADT/StringExtras.h"
 #include "llvm/Config/config.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/Process.h"
+#include "llvm/Support/Program.h"
 
-namespace llvm {
+using namespace llvm;
 using namespace sys;
 
 //===----------------------------------------------------------------------===//
@@ -22,8 +26,53 @@ using namespace sys;
 //===          independent code.
 //===----------------------------------------------------------------------===//
 
+Optional<std::string> Process::FindInEnvPath(const std::string& EnvName,
+                                             const std::string& FileName)
+{
+  assert(!path::is_absolute(FileName));
+  Optional<std::string> FoundPath;
+  Optional<std::string> OptPath = Process::GetEnv(EnvName);
+  if (!OptPath.hasValue())
+    return FoundPath;
+
+  const char EnvPathSeparatorStr[] = {EnvPathSeparator, '\0'};
+  SmallVector<StringRef, 8> Dirs;
+  SplitString(OptPath.getValue(), Dirs, EnvPathSeparatorStr);
+
+  for (const auto &Dir : Dirs) {
+    if (Dir.empty())
+      continue;
+
+    SmallString<128> FilePath(Dir);
+    path::append(FilePath, FileName);
+    if (fs::exists(Twine(FilePath))) {
+      FoundPath = FilePath.str();
+      break;
+    }
+  }
+
+  return FoundPath;
 }
 
+
+#define COLOR(FGBG, CODE, BOLD) "\033[0;" BOLD FGBG CODE "m"
+
+#define ALLCOLORS(FGBG,BOLD) {\
+    COLOR(FGBG, "0", BOLD),\
+    COLOR(FGBG, "1", BOLD),\
+    COLOR(FGBG, "2", BOLD),\
+    COLOR(FGBG, "3", BOLD),\
+    COLOR(FGBG, "4", BOLD),\
+    COLOR(FGBG, "5", BOLD),\
+    COLOR(FGBG, "6", BOLD),\
+    COLOR(FGBG, "7", BOLD)\
+  }
+
+static const char colorcodes[2][2][8][10] = {
+ { ALLCOLORS("3",""), ALLCOLORS("3","1;") },
+ { ALLCOLORS("4",""), ALLCOLORS("4","1;") }
+};
+
 // Include the platform-specific parts of this class.
 #ifdef LLVM_ON_UNIX
 #include "Unix/Process.inc"