| // Copyright 2014 The Bazel Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| #include "src/main/cpp/util/file.h" |
| |
| #include <limits.h> // PATH_MAX |
| #include <sys/stat.h> |
| #include <cstdlib> |
| #include <vector> |
| |
| #include "src/main/cpp/util/errors.h" |
| #include "src/main/cpp/util/exit_code.h" |
| #include "src/main/cpp/util/strings.h" |
| |
| using std::pair; |
| |
| namespace blaze_util { |
| |
| using std::string; |
| |
| pair<string, string> SplitPath(const string &path) { |
| size_t pos = path.rfind('/'); |
| |
| // Handle the case with no '/' in 'path'. |
| if (pos == string::npos) return std::make_pair("", path); |
| |
| // Handle the case with a single leading '/' in 'path'. |
| if (pos == 0) return std::make_pair(string(path, 0, 1), string(path, 1)); |
| |
| return std::make_pair(string(path, 0, pos), string(path, pos + 1)); |
| } |
| |
| string Dirname(const string &path) { |
| return SplitPath(path).first; |
| } |
| |
| string Basename(const string &path) { |
| return SplitPath(path).second; |
| } |
| |
| string JoinPath(const string &path1, const string &path2) { |
| if (path1.empty()) { |
| // "" + "/bar" |
| return path2; |
| } |
| |
| if (path1[path1.size() - 1] == '/') { |
| if (path2.find('/') == 0) { |
| // foo/ + /bar |
| return path1 + path2.substr(1); |
| } else { |
| // foo/ + bar |
| return path1 + path2; |
| } |
| } else { |
| if (path2.find('/') == 0) { |
| // foo + /bar |
| return path1 + path2; |
| } else { |
| // foo + bar |
| return path1 + "/" + path2; |
| } |
| } |
| } |
| |
| } // namespace blaze_util |