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93 lines
3.0 KiB
C++
93 lines
3.0 KiB
C++
//===--- ClangTidyProfiling.cpp - clang-tidy --------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "ClangTidyProfiling.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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#include "llvm/Support/YAMLTraits.h"
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#include "llvm/Support/raw_ostream.h"
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#include <system_error>
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#include <utility>
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#define DEBUG_TYPE "clang-tidy-profiling"
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namespace clang {
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namespace tidy {
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ClangTidyProfiling::StorageParams::StorageParams(llvm::StringRef ProfilePrefix,
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llvm::StringRef SourceFile)
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: Timestamp(std::chrono::system_clock::now()), SourceFilename(SourceFile) {
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llvm::SmallString<32> TimestampStr;
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llvm::raw_svector_ostream OS(TimestampStr);
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llvm::format_provider<decltype(Timestamp)>::format(Timestamp, OS,
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"%Y%m%d%H%M%S%N");
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llvm::SmallString<256> FinalPrefix(ProfilePrefix);
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llvm::sys::path::append(FinalPrefix, TimestampStr);
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// So the full output name is: /ProfilePrefix/timestamp-inputfilename.json
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StoreFilename = llvm::Twine(FinalPrefix + "-" +
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llvm::sys::path::filename(SourceFile) + ".json")
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.str();
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}
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void ClangTidyProfiling::printUserFriendlyTable(llvm::raw_ostream &OS) {
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TG->print(OS);
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OS.flush();
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}
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void ClangTidyProfiling::printAsJSON(llvm::raw_ostream &OS) {
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OS << "{\n";
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OS << "\"file\": \"" << Storage->SourceFilename << "\",\n";
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OS << "\"timestamp\": \"" << Storage->Timestamp << "\",\n";
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OS << "\"profile\": {\n";
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TG->printJSONValues(OS, "");
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OS << "\n}\n";
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OS << "}\n";
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OS.flush();
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}
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void ClangTidyProfiling::storeProfileData() {
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assert(Storage.hasValue() && "We should have a filename.");
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llvm::SmallString<256> OutputDirectory(Storage->StoreFilename);
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llvm::sys::path::remove_filename(OutputDirectory);
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if (std::error_code EC = llvm::sys::fs::create_directories(OutputDirectory)) {
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llvm::errs() << "Unable to create output directory '" << OutputDirectory
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<< "': " << EC.message() << "\n";
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return;
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}
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std::error_code EC;
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llvm::raw_fd_ostream OS(Storage->StoreFilename, EC, llvm::sys::fs::OF_None);
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if (EC) {
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llvm::errs() << "Error opening output file '" << Storage->StoreFilename
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<< "': " << EC.message() << "\n";
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return;
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}
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printAsJSON(OS);
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}
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ClangTidyProfiling::ClangTidyProfiling(llvm::Optional<StorageParams> Storage)
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: Storage(std::move(Storage)) {}
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ClangTidyProfiling::~ClangTidyProfiling() {
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TG.emplace("clang-tidy", "clang-tidy checks profiling", Records);
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if (!Storage.hasValue())
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printUserFriendlyTable(llvm::errs());
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else
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storeProfileData();
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}
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} // namespace tidy
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} // namespace clang
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