[PATCH] [GraphWriter] Attempt to open .dot files with xdg-open/open first

[Phabricator]

REPOSITORY
  rL LLVM

http://reviews.llvm.org/D6534

Files:
  llvm/trunk/lib/Support/GraphWriter.cpp

Index: llvm/trunk/lib/Support/GraphWriter.cpp
===================================================================
--- llvm/trunk/lib/Support/GraphWriter.cpp
+++ llvm/trunk/lib/Support/GraphWriter.cpp
@@ -140,6 +140,29 @@
   std::string ViewerPath;
   GraphSession S;
 
+#ifdef __APPLE__
+  if (S.TryFindProgram("open", ViewerPath)) {
+    std::vector<const char *> args;
+    args.push_back(ViewerPath.c_str());
+    if (wait)
+      args.push_back("-W");
+    args.push_back(Filename.c_str());
+    args.push_back(nullptr);
+    errs() << "Trying 'open' program... ";
+    if (!ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg))
+      return false;
+  }
+#endif
+  if (S.TryFindProgram("xdg-open", ViewerPath)) {
+    std::vector<const char *> args;
+    args.push_back(ViewerPath.c_str());
+    args.push_back(Filename.c_str());
+    args.push_back(nullptr);
+    errs() << "Trying 'xdg-open' program... ";
+    if (!ExecGraphViewer(ViewerPath, args, Filename, wait, ErrMsg))
+      return false;
+  }
+
   // Graphviz
   if (S.TryFindProgram("Graphviz", ViewerPath)) {
     std::vector<const char *> args;

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