| // Copyright (c) 2013 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. |
| |
| #include "tools/gn/source_file.h" |
| |
| #include "base/logging.h" |
| #include "build/build_config.h" |
| #include "tools/gn/filesystem_utils.h" |
| #include "tools/gn/source_dir.h" |
| |
| namespace { |
| |
| void AssertValueSourceFileString(const std::string& s) { |
| #if defined(OS_WIN) |
| DCHECK(s[0] == '/' || |
| (s.size() > 2 && s[0] != '/' && s[1] == ':' && IsSlash(s[2]))); |
| #else |
| DCHECK(s[0] == '/'); |
| #endif |
| DCHECK(!EndsWithSlash(s)) << s; |
| } |
| |
| } // namespace |
| |
| SourceFile::SourceFile() { |
| } |
| |
| SourceFile::SourceFile(const base::StringPiece& p) |
| : value_(p.data(), p.size()) { |
| DCHECK(!value_.empty()); |
| AssertValueSourceFileString(value_); |
| NormalizePath(&value_); |
| } |
| |
| SourceFile::SourceFile(SwapIn, std::string* value) { |
| value_.swap(*value); |
| DCHECK(!value_.empty()); |
| AssertValueSourceFileString(value_); |
| NormalizePath(&value_); |
| } |
| |
| SourceFile::~SourceFile() { |
| } |
| |
| std::string SourceFile::GetName() const { |
| if (is_null()) |
| return std::string(); |
| |
| DCHECK(value_.find('/') != std::string::npos); |
| size_t last_slash = value_.rfind('/'); |
| return std::string(&value_[last_slash + 1], |
| value_.size() - last_slash - 1); |
| } |
| |
| SourceDir SourceFile::GetDir() const { |
| if (is_null()) |
| return SourceDir(); |
| |
| DCHECK(value_.find('/') != std::string::npos); |
| size_t last_slash = value_.rfind('/'); |
| return SourceDir(base::StringPiece(&value_[0], last_slash + 1)); |
| } |
| |
| base::FilePath SourceFile::Resolve(const base::FilePath& source_root) const { |
| if (is_null()) |
| return base::FilePath(); |
| |
| std::string converted; |
| if (is_system_absolute()) { |
| if (value_.size() > 2 && value_[2] == ':') { |
| // Windows path, strip the leading slash. |
| converted.assign(&value_[1], value_.size() - 1); |
| } else { |
| converted.assign(value_); |
| } |
| return base::FilePath(UTF8ToFilePath(converted)); |
| } |
| |
| converted.assign(&value_[2], value_.size() - 2); |
| if (source_root.empty()) |
| return UTF8ToFilePath(converted).NormalizePathSeparatorsTo('/'); |
| return source_root.Append(UTF8ToFilePath(converted)) |
| .NormalizePathSeparatorsTo('/'); |
| } |