91 lines
2.6 KiB
C++
91 lines
2.6 KiB
C++
/*
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* Copyright (C) 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <memory>
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#include <optional>
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#include <string>
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#include <unordered_map>
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#include <unordered_set>
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#include "common/libs/utils/result.h"
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#include "host/commands/cvd/client.h"
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#include "host/commands/cvd/flag.h"
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#include "host/commands/cvd/selector/arguments_separator.h"
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#include "host/commands/cvd/types.h"
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namespace cuttlefish {
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/* the very first command line parser
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*
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* Being aware of valid subcommands and cvd-specific commands, it will
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* separate the command line arguments into:
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*
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* 1. program path/name
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* 2. cvd-specific arguments
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* a) selector flags
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* b) non-selector flags
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* 3. subcommand
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* 4. subcommand arguments
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*
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* This is currently on the client side but will be moved to the server
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* side.
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*/
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class FrontlineParser {
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using ArgumentsSeparator = selector::ArgumentsSeparator;
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public:
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struct ParserParam {
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// commands supported by the server
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std::vector<std::string> server_supported_subcmds;
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// commands supported by the client itself
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std::vector<std::string> internal_cmds;
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cvd_common::Args all_args;
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FlagCollection cvd_flags;
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};
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// This call must guarantee all public methods will be valid
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static Result<std::unique_ptr<FrontlineParser>> Parse(ParserParam param);
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const std::string& ProgPath() const;
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std::optional<std::string> SubCmd() const;
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const cvd_common::Args& SubCmdArgs() const;
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const cvd_common::Args& CvdArgs() const;
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private:
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FrontlineParser(const ParserParam& parser);
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// internal workers in order
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Result<void> Separate();
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Result<cvd_common::Args> ValidSubcmdsList();
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Result<std::unique_ptr<ArgumentsSeparator>> CallSeparator();
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struct FilterOutput {
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bool clean;
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bool help;
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cvd_common::Args selector_args;
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};
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Result<FilterOutput> FilterNonSelectorArgs();
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cvd_common::Args server_supported_subcmds_;
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const cvd_common::Args all_args_;
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const std::vector<std::string> internal_cmds_;
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FlagCollection cvd_flags_;
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std::unique_ptr<ArgumentsSeparator> arguments_separator_;
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};
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} // namespace cuttlefish
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