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| 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 | + |
| 15 | +namespace clang { |
| 16 | +namespace tooling { |
| 17 | + |
| 18 | +namespace { |
| 19 | +class LocationAdderDatabase : public CompilationDatabase { |
| 20 | +public: |
| 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(Base->getAllCompileCommands()); |
| 32 | + } |
| 33 | + |
| 34 | + std::vector<CompileCommand> |
| 35 | + getCompileCommands(StringRef FilePath) const override { |
| 36 | + return addLocation(Base->getCompileCommands(FilePath)); |
| 37 | + } |
| 38 | + |
| 39 | +private: |
| 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(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(Driver, |
| 52 | + [](char C) { return llvm::sys::path::is_separator(C); })) |
| 53 | + continue; |
| 54 | + auto Absolute = llvm::sys::findProgramByName(Driver); |
| 55 | + // If we found it in path, update the entry in Cmd.CommandLine |
| 56 | + if (Absolute && llvm::sys::path::is_absolute(*Absolute)) |
| 57 | + Driver = std::move(*Absolute); |
| 58 | + } |
| 59 | + return Cmds; |
| 60 | + } |
| 61 | + std::unique_ptr<CompilationDatabase> Base; |
| 62 | +}; |
| 63 | +} // namespace |
| 64 | + |
| 65 | +std::unique_ptr<CompilationDatabase> |
| 66 | +inferToolLocation(std::unique_ptr<CompilationDatabase> Base) { |
| 67 | + return std::make_unique<LocationAdderDatabase>(std::move(Base)); |
| 68 | +} |
| 69 | + |
| 70 | +} // namespace tooling |
| 71 | +} // namespace clang |
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