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124 lines
3.5 KiB
C++
124 lines
3.5 KiB
C++
//===--- swift-dependency-tool.cpp - Convert binary swiftdeps to YAML -----===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#include "swift/AST/FileSystem.h"
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#include "swift/AST/FineGrainedDependencies.h"
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#include "swift/AST/DiagnosticEngine.h"
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#include "swift/AST/FineGrainedDependencyFormat.h"
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#include "swift/Basic/SourceManager.h"
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#include "swift/Basic/LLVMInitialize.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/YAMLParser.h"
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using namespace swift;
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using namespace fine_grained_dependencies;
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enum class ActionType : unsigned {
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None,
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BinaryToYAML,
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YAMLToBinary
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};
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namespace options {
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static llvm::cl::OptionCategory Category("swift-dependency-tool Options");
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static llvm::cl::opt<std::string>
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InputFilename("input-filename",
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llvm::cl::desc("Name of the input file"),
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llvm::cl::cat(Category));
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static llvm::cl::opt<std::string>
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OutputFilename("output-filename",
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llvm::cl::desc("Name of the output file"),
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llvm::cl::cat(Category));
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static llvm::cl::opt<ActionType>
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Action(llvm::cl::desc("Mode:"), llvm::cl::init(ActionType::None),
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llvm::cl::cat(Category),
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llvm::cl::values(
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clEnumValN(ActionType::BinaryToYAML,
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"to-yaml", "Convert new binary .swiftdeps format to YAML"),
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clEnumValN(ActionType::YAMLToBinary,
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"from-yaml", "Convert YAML to new binary .swiftdeps format")));
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}
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int main(int argc, char *argv[]) {
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PROGRAM_START(argc, argv);
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INITIALIZE_LLVM();
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llvm::cl::HideUnrelatedOptions(options::Category);
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llvm::cl::ParseCommandLineOptions(argc, argv, "Swift Dependency Tool\n");
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SourceManager sourceMgr;
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DiagnosticEngine diags(sourceMgr);
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switch (options::Action) {
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case ActionType::None: {
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llvm::errs() << "action required\n";
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llvm::cl::PrintHelpMessage();
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return 1;
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}
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case ActionType::BinaryToYAML: {
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auto fg = SourceFileDepGraph::loadFromPath(options::InputFilename);
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if (!fg) {
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llvm::errs() << "Failed to read dependency file\n";
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return 1;
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}
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bool hadError =
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withOutputFile(diags, options::OutputFilename,
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[&](llvm::raw_pwrite_stream &out) {
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out << fg->yamlProlog(/*hadError=*/false);
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llvm::yaml::Output yamlWriter(out);
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yamlWriter << *fg;
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return false;
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});
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if (hadError) {
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llvm::errs() << "Failed to write YAML swiftdeps\n";
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}
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break;
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}
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case ActionType::YAMLToBinary: {
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auto bufferOrError = llvm::MemoryBuffer::getFile(options::InputFilename);
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if (!bufferOrError) {
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llvm::errs() << "Failed to read dependency file\n";
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return 1;
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}
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auto &buffer = *bufferOrError.get();
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SourceFileDepGraph fg;
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llvm::yaml::Input yamlReader(llvm::MemoryBufferRef(buffer), nullptr);
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yamlReader >> fg;
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if (yamlReader.error()) {
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llvm::errs() << "Failed to parse YAML swiftdeps\n";
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return 1;
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}
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if (writeFineGrainedDependencyGraph(diags, options::OutputFilename, fg)) {
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llvm::errs() << "Failed to write binary swiftdeps\n";
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return 1;
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}
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break;
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}
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}
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return 0;
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}
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