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//===- GuessTargetAndModeCompilationDatabase.cpp --------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "clang/Tooling/CompilationDatabase.h"
#include "clang/Tooling/Tooling.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/Program.h"
#include <memory>
namespace clang {
namespace tooling {
namespace {
class LocationAdderDatabase : public CompilationDatabase {
public:
LocationAdderDatabase(std::unique_ptr<CompilationDatabase> Base)
: Base(std::move(Base)) {
assert(this->Base != nullptr);
}
std::vector<std::string> getAllFiles() const override {
return Base->getAllFiles();
}
std::vector<CompileCommand> getAllCompileCommands() const override {
return addLocation(Base->getAllCompileCommands());
}
std::vector<CompileCommand>
getCompileCommands(StringRef FilePath) const override {
return addLocation(Base->getCompileCommands(FilePath));
}
private:
std::vector<CompileCommand>
addLocation(std::vector<CompileCommand> Cmds) const {
for (auto &Cmd : Cmds) {
if (Cmd.CommandLine.empty())
continue;
std::string &Driver = Cmd.CommandLine.front();
// If the driver name already is absolute, we don't need to do anything.
if (llvm::sys::path::is_absolute(Driver))
continue;
// If the name is a relative path, like bin/clang, we assume it's
// possible to resolve it and don't do anything about it either.
if (llvm::any_of(Driver,
[](char C) { return llvm::sys::path::is_separator(C); }))
continue;
auto Absolute = llvm::sys::findProgramByName(Driver);
// If we found it in path, update the entry in Cmd.CommandLine
if (Absolute && llvm::sys::path::is_absolute(*Absolute))
Driver = std::move(*Absolute);
}
return Cmds;
}
std::unique_ptr<CompilationDatabase> Base;
};
} // namespace
std::unique_ptr<CompilationDatabase>
inferToolLocation(std::unique_ptr<CompilationDatabase> Base) {
return std::make_unique<LocationAdderDatabase>(std::move(Base));
}
} // namespace tooling
} // namespace clang
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