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
diff --git a/tools/clang-check/ClangCheck.cpp b/tools/clang-check/ClangCheck.cpp
index d68e282..ef4a3ac 100644
--- a/tools/clang-check/ClangCheck.cpp
+++ b/tools/clang-check/ClangCheck.cpp
@@ -42,8 +42,9 @@
using namespace llvm;
cl::opt<std::string> BuildPath(
- cl::Positional,
- cl::desc("<build-path>"));
+ "p",
+ cl::desc("<build-path>"),
+ cl::Optional);
cl::list<std::string> SourcePaths(
cl::Positional,
@@ -56,8 +57,13 @@
cl::ParseCommandLineOptions(argc, argv);
if (!Compilations) {
std::string ErrorMessage;
- Compilations.reset(CompilationDatabase::loadFromDirectory(BuildPath,
- ErrorMessage));
+ if (!BuildPath.empty()) {
+ Compilations.reset(CompilationDatabase::loadFromDirectory(BuildPath,
+ ErrorMessage));
+ } else {
+ Compilations.reset(CompilationDatabase::autoDetectFromSource(
+ SourcePaths[0], ErrorMessage));
+ }
if (!Compilations)
llvm::report_fatal_error(ErrorMessage);
}