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//===- Reproducer.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 "Reproducer.h"
#include "llvm/Support/Path.h"
using namespace llvm;
using namespace llvm::dsymutil;
static std::string createReproducerDir(std::error_code &EC) {
SmallString<128> Root;
if (const char *Path = getenv("DSYMUTIL_REPRODUCER_PATH")) {
Root.assign(Path);
EC = sys::fs::create_directory(Root);
} else {
EC = sys::fs::createUniqueDirectory("dsymutil", Root);
}
return EC ? "" : std::string(Root);
}
Reproducer::Reproducer() : VFS(vfs::getRealFileSystem()) {}
Reproducer::~Reproducer() = default;
ReproducerGenerate::ReproducerGenerate(std::error_code &EC)
: Root(createReproducerDir(EC)), FC() {
if (!Root.empty())
FC = std::make_shared<FileCollector>(Root, Root);
VFS = FileCollector::createCollectorVFS(vfs::getRealFileSystem(), FC);
}
ReproducerGenerate::~ReproducerGenerate() {
if (!FC)
return;
FC->copyFiles(false);
SmallString<128> Mapping(Root);
sys::path::append(Mapping, "mapping.yaml");
FC->writeMapping(Mapping.str());
outs() << "reproducer written to " << Root << '\n';
}
ReproducerUse::~ReproducerUse() = default;
ReproducerUse::ReproducerUse(StringRef Root, std::error_code &EC) {
SmallString<128> Mapping(Root);
sys::path::append(Mapping, "mapping.yaml");
ErrorOr<std::unique_ptr<MemoryBuffer>> Buffer =
vfs::getRealFileSystem()->getBufferForFile(Mapping.str());
if (!Buffer) {
EC = Buffer.getError();
return;
}
VFS = llvm::vfs::getVFSFromYAML(std::move(Buffer.get()), nullptr, Mapping);
}
llvm::Expected<std::unique_ptr<Reproducer>>
Reproducer::createReproducer(ReproducerMode Mode, StringRef Root) {
switch (Mode) {
case ReproducerMode::Generate: {
std::error_code EC;
std::unique_ptr<Reproducer> Repro =
std::make_unique<ReproducerGenerate>(EC);
if (EC)
return errorCodeToError(EC);
return std::move(Repro);
}
case ReproducerMode::Use: {
std::error_code EC;
std::unique_ptr<Reproducer> Repro =
std::make_unique<ReproducerUse>(Root, EC);
if (EC)
return errorCodeToError(EC);
return std::move(Repro);
}
case ReproducerMode::Off:
return std::make_unique<Reproducer>();
}
llvm_unreachable("All cases handled above.");
}
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