Add a hook to supply a custom CompilationDatabase. To add a custom CompilationDatabase, make it implement findCompilationDatabaseForDirectory in CustomCompilationDatabase.h and set USE_COSTUM_COMPILATION_DATABASE.
Differential Revision: http://llvm-reviews.chandlerc.com/D4
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160061 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Tooling/CompilationDatabase.cpp b/lib/Tooling/CompilationDatabase.cpp
index a06343d..d54a5e7 100644
--- a/lib/Tooling/CompilationDatabase.cpp
+++ b/lib/Tooling/CompilationDatabase.cpp
@@ -18,6 +18,10 @@
#include "llvm/Support/Path.h"
#include "llvm/Support/system_error.h"
+#ifdef USE_CUSTOM_COMPILATION_DATABASE
+#include "CustomCompilationDatabase.h"
+#endif
+
namespace clang {
namespace tooling {
@@ -124,6 +128,11 @@
static CompilationDatabase *
findCompilationDatabaseFromDirectory(StringRef Directory) {
+#ifdef USE_CUSTOM_COMPILATION_DATABASE
+ if (CompilationDatabase *DB =
+ ::findCompilationDatabaseForDirectory(Directory))
+ return DB;
+#endif
while (!Directory.empty()) {
std::string LoadErrorMessage;
diff --git a/lib/Tooling/CustomCompilationDatabase.h b/lib/Tooling/CustomCompilationDatabase.h
new file mode 100644
index 0000000..a24915a
--- /dev/null
+++ b/lib/Tooling/CustomCompilationDatabase.h
@@ -0,0 +1,37 @@
+//===--- CustomCompilationDatabase.h --------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains a hook to supply a custom \c CompilationDatabase
+// implementation.
+//
+// The mechanism can be used by IDEs or non-public code bases to integrate with
+// their build system. Currently we support statically linking in an
+// implementation of \c findCompilationDatabaseForDirectory and enabling it
+// with -DUSE_CUSTOM_COMPILATION_DATABASE when compiling the Tooling library.
+//
+// FIXME: The strategy forward is to provide a plugin system that can load
+// custom compilation databases and make enabling that a build option.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/StringRef.h"
+
+namespace clang {
+namespace tooling {
+class CompilationDatabase;
+}
+}
+
+/// \brief Returns a CompilationDatabase for the given \c Directory.
+///
+/// \c Directory can be any directory within a project. This methods will
+/// then try to find compilation database files in \c Directory or any of its
+/// parents. If a compilation database cannot be found or loaded, returns NULL.
+clang::tooling::CompilationDatabase *findCompilationDatabaseForDirectory(
+ llvm::StringRef Directory);
