Adds support for auto-detection of compilation databases

from a source file and changes clang-check to make use of this.

This makes clang-check just work on in-tree builds, and allows
easy setup via a symlink per source directory to make clang-check
work without any extra configuration.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159990 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 1 deletions

diff --git a/include/clang/Tooling/CompilationDatabase.h b/include/clang/Tooling/CompilationDatabase.h
index 625c8eced4..0dec6f8f87 100644
--- a/include/clang/Tooling/CompilationDatabase.h
+++ b/include/clang/Tooling/CompilationDatabase.h
@@ -81,6 +81,13 @@ public:
   static CompilationDatabase *loadFromDirectory(StringRef BuildDirectory,
                                                 std::string &ErrorMessage);
 
+  /// \brief Tries to detect a compilation database location and load it.
+  ///
+  /// Looks for a compilation database in all parent paths by calling
+  /// loadFromDirectory.
+  static CompilationDatabase *autoDetectFromSource(StringRef SourceFile,
+                                                   std::string &ErrorMessage);
+
   /// \brief Returns all compile commands in which the specified file was
   /// compiled.
   ///
@@ -215,4 +222,3 @@ private:
 } // end namespace clang
 
 #endif // LLVM_CLANG_TOOLING_COMPILATION_DATABASE_H
-