init/import_parser.cpp

/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * 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 "import_parser.h"

#include "errno.h"

#include <string>
#include <vector>

#include "log.h"
#include "util.h"

bool ImportParser::ParseSection(const std::vector<std::string>& args,
                                std::string* err) {
    if (args.size() != 2) {
        *err = "single argument needed for import\n";
        return false;
    }

    std::string conf_file;
    bool ret = expand_props(args[1], &conf_file);
    if (!ret) {
        *err = "error while expanding import";
        return false;
    }

    INFO("Added '%s' to import list\n", conf_file.c_str());
    imports_.emplace_back(std::move(conf_file));
    return true;
}

void ImportParser::EndFile(const std::string& filename) {
    auto current_imports = std::move(imports_);
    imports_.clear();
    for (const auto& s : current_imports) {
        if (!Parser::GetInstance().ParseConfig(s)) {
            ERROR("could not import file '%s' from '%s': %s\n",
                  s.c_str(), filename.c_str(), strerror(errno));
        }
    }
}