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// 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/exit_code.h"
#include "src/main/cpp/util/errors.h"
#include "src/main/cpp/util/strings.h"
using std::pair;
namespace blaze_util {
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
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