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This allows to generate Visual Studio projects that include source files that are merged together into jumbo files.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| // Copyright (c) 2018 The Chromium Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
|
|
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| #include "tools/gn/jumbo_file_list_generator.h" | ||
|
|
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| #include <algorithm> | ||
| #include <string> | ||
| #include <vector> | ||
|
|
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| #include "base/logging.h" | ||
| #include "base/numerics/safe_conversions.h" | ||
| #include "base/strings/string_piece.h" | ||
| #include "base/strings/stringprintf.h" | ||
| #include "tools/gn/filesystem_utils.h" | ||
|
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| namespace { | ||
|
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| // Constructs the file name for a jumbo file. | ||
| std::string GetJumboFileName(const std::string& target_name, | ||
| SourceFileType file_type, | ||
| int file_number) { | ||
| base::StringPiece extension; | ||
| switch (file_type) { | ||
| case SOURCE_C: | ||
| extension = "c"; | ||
| break; | ||
| case SOURCE_CPP: | ||
| extension = "cc"; | ||
| break; | ||
| case SOURCE_MM: | ||
| extension = "mm"; | ||
| break; | ||
| default: | ||
| return std::string(); | ||
| } | ||
|
|
||
| return base::StringPrintf("%s_jumbo_%s_%d.%s", target_name.c_str(), | ||
| extension.data(), file_number, extension.data()); | ||
| } | ||
|
|
||
| } // namespace | ||
|
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||
| JumboFileListGenerator::JumboFileListGenerator( | ||
| const Target* target, | ||
| Target::JumboFileList* jumbo_files, | ||
| Err* err) | ||
| : target_(target), | ||
| jumbo_files_dir_( | ||
| GetBuildDirForTargetAsSourceDir(target, BuildDirType::GEN)), | ||
| jumbo_files_(jumbo_files), | ||
| recent_jumbo_file_(nullptr), | ||
| recent_jumbo_file_type_(SOURCE_UNKNOWN), | ||
| err_(err) {} | ||
|
|
||
| JumboFileListGenerator::~JumboFileListGenerator() = default; | ||
|
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| void JumboFileListGenerator::Run() { | ||
| const Target::FileList& excluded_sources = target_->jumbo_excluded_sources(); | ||
|
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| for (const SourceFile& input : target_->sources()) { | ||
| SourceFileType file_type = GetSourceFileType(input); | ||
| if (file_type != SOURCE_C && file_type != SOURCE_CPP && | ||
| file_type != SOURCE_MM) { | ||
| continue; | ||
| } | ||
|
|
||
| if (std::find(excluded_sources.begin(), excluded_sources.end(), input) != | ||
| excluded_sources.end()) { | ||
| continue; | ||
| } | ||
|
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||
| Target::JumboSourceFile* jumbo_file = FindJumboFile(file_type); | ||
| if (!jumbo_file) | ||
| jumbo_file = CreateJumboFile(file_type); | ||
| if (!jumbo_file) { | ||
| if (err_->has_error()) | ||
| return; | ||
| else | ||
| continue; // Source file type not supported by jumbo. Just skip it. | ||
| } | ||
|
|
||
| jumbo_file->second.push_back(&input); | ||
|
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| recent_jumbo_file_ = jumbo_file; | ||
| recent_jumbo_file_type_ = file_type; | ||
| } | ||
| } | ||
|
|
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| Target::JumboSourceFile* JumboFileListGenerator::FindJumboFile( | ||
| SourceFileType file_type) const { | ||
| // Return recently used file if suitable. | ||
| if (recent_jumbo_file_type_ == file_type) { | ||
| return base::checked_cast<int>(recent_jumbo_file_->second.size()) < | ||
| target_->jumbo_file_merge_limit() | ||
| ? recent_jumbo_file_ | ||
| : nullptr; | ||
| } | ||
|
|
||
| // Return immediately if we don't have any files for |file_type|. | ||
| if (jumbo_file_numbers_.count(file_type) == 0) | ||
| return nullptr; | ||
|
|
||
| // Search for file on |jumbo_files_| list. | ||
| for (auto it = jumbo_files_->rbegin(); it != jumbo_files_->rend(); ++it) { | ||
| if (GetSourceFileType(it->first) == file_type) { | ||
| return base::checked_cast<int>(it->second.size()) < | ||
| target_->jumbo_file_merge_limit() | ||
| ? &(*it) | ||
| : nullptr; | ||
| } | ||
| } | ||
|
|
||
| NOTREACHED(); | ||
| return nullptr; | ||
| } | ||
|
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| Target::JumboSourceFile* JumboFileListGenerator::CreateJumboFile( | ||
| SourceFileType file_type) { | ||
| const auto it = jumbo_file_numbers_.find(file_type); | ||
| int file_number = it != jumbo_file_numbers_.end() ? it->second + 1 : 0; | ||
| jumbo_file_numbers_[file_type] = file_number; | ||
|
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| std::string file_name = | ||
| GetJumboFileName(target_->label().name(), file_type, file_number); | ||
| if (file_name.empty()) | ||
| return nullptr; | ||
|
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||
| SourceFile source_file = | ||
| jumbo_files_dir_.ResolveRelativeFile(Value(nullptr, file_name), err_); | ||
| if (source_file.is_null()) | ||
| return nullptr; | ||
|
|
||
| jumbo_files_->push_back( | ||
| Target::JumboSourceFile(source_file, std::vector<const SourceFile*>())); | ||
| Target::JumboSourceFile* jumbo_file = &jumbo_files_->back(); | ||
| jumbo_file->second.reserve(target_->jumbo_file_merge_limit()); | ||
| return jumbo_file; | ||
| } |
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