tools/gn/source_file.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "tools/gn/source_file.h"
   6
   7 #include "base/logging.h"
   8 #include "build/build_config.h"
   9 #include "tools/gn/filesystem_utils.h"
  10 #include "tools/gn/source_dir.h"
  11
  12 SourceFile::SourceFile() {
  13 }
  14
  15 SourceFile::SourceFile(const base::StringPiece& p)
  16     : value_(p.data(), p.size()) {
  17   DCHECK(!value_.empty());
  18   DCHECK(value_[0] == '/');
  19   DCHECK(!EndsWithSlash(value_));
  20 }
  21
  22 SourceFile::~SourceFile() {
  23 }
  24
  25 std::string SourceFile::GetName() const {
  26   if (is_null())
  27     return std::string();
  28
  29   DCHECK(value_.find('/') != std::string::npos);
  30   size_t last_slash = value_.rfind('/');
  31   return std::string(&value_[last_slash + 1],
  32                      value_.size() - last_slash - 1);
  33 }
  34
  35 SourceDir SourceFile::GetDir() const {
  36   if (is_null())
  37     return SourceDir();
  38
  39   DCHECK(value_.find('/') != std::string::npos);
  40   size_t last_slash = value_.rfind('/');
  41   return SourceDir(base::StringPiece(&value_[0], last_slash + 1));
  42 }
  43
  44 base::FilePath SourceFile::Resolve(const base::FilePath& source_root) const {
  45   if (is_null())
  46     return base::FilePath();
  47
  48   std::string converted;
  49   if (is_system_absolute()) {
  50     if (value_.size() > 2 && value_[2] == ':') {
  51       // Windows path, strip the leading slash.
  52       converted.assign(&value_[1], value_.size() - 1);
  53     } else {
  54       converted.assign(value_);
  55     }
  56     ConvertPathToSystem(&converted);
  57     return base::FilePath(UTF8ToFilePath(converted));
  58   }
  59
  60   converted.assign(&value_[2], value_.size() - 2);
  61   ConvertPathToSystem(&converted);
  62   return source_root.Append(UTF8ToFilePath(converted));
  63 }