1//===- GuessTargetAndModeCompilationDatabase.cpp --------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "clang/Tooling/CompilationDatabase.h"
10#include "clang/Tooling/Tooling.h"
11#include "llvm/Support/Path.h"
12#include "llvm/Support/Program.h"
13#include <memory>
14
15namespace clang {
16namespace tooling {
17
18namespace {
19class LocationAdderDatabase : public CompilationDatabase {
20public:
21 LocationAdderDatabase(std::unique_ptr<CompilationDatabase> Base)
22 : Base(std::move(Base)) {
23 assert(this->Base != nullptr);
24 }
25
26 std::vector<std::string> getAllFiles() const override {
27 return Base->getAllFiles();
28 }
29
30 std::vector<CompileCommand> getAllCompileCommands() const override {
31 return addLocation(Cmds: Base->getAllCompileCommands());
32 }
33
34 std::vector<CompileCommand>
35 getCompileCommands(StringRef FilePath) const override {
36 return addLocation(Cmds: Base->getCompileCommands(FilePath));
37 }
38
39private:
40 std::vector<CompileCommand>
41 addLocation(std::vector<CompileCommand> Cmds) const {
42 for (auto &Cmd : Cmds) {
43 if (Cmd.CommandLine.empty())
44 continue;
45 std::string &Driver = Cmd.CommandLine.front();
46 // If the driver name already is absolute, we don't need to do anything.
47 if (llvm::sys::path::is_absolute(path: Driver))
48 continue;
49 // If the name is a relative path, like bin/clang, we assume it's
50 // possible to resolve it and don't do anything about it either.
51 if (llvm::any_of(Range&: Driver,
52 P: [](char C) { return llvm::sys::path::is_separator(value: C); }))
53 continue;
54 auto Absolute = llvm::sys::findProgramByName(Name: Driver);
55 // If we found it in path, update the entry in Cmd.CommandLine
56 if (Absolute && llvm::sys::path::is_absolute(path: *Absolute))
57 Driver = std::move(*Absolute);
58 }
59 return Cmds;
60 }
61 std::unique_ptr<CompilationDatabase> Base;
62};
63} // namespace
64
65std::unique_ptr<CompilationDatabase>
66inferToolLocation(std::unique_ptr<CompilationDatabase> Base) {
67 return std::make_unique<LocationAdderDatabase>(args: std::move(Base));
68}
69
70} // namespace tooling
71} // namespace clang
72