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// Copyright 2014 Google Inc. 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.
#ifndef DEVTOOLS_BLAZE_MAIN_OPTION_PROCESSOR_H_
#define DEVTOOLS_BLAZE_MAIN_OPTION_PROCESSOR_H_
#include <list>
#include <map>
#include <memory>
#include <string>
#include <vector>
#include "blaze_exit_code.h"
#include "blaze_startup_options.h"
namespace blaze {
using std::string;
// This class is responsible for parsing the command line of the Blaze binary,
// parsing blazerc files, and putting together the command that should be sent
// to the server.
class OptionProcessor {
public:
OptionProcessor();
virtual ~OptionProcessor() {}
// Parse a command line and the appropriate blazerc files. This should be
// invoked only once per OptionProcessor object.
blaze_exit_code::ExitCode ParseOptions(const std::vector<string>& args,
const string& workspace,
const string& cwd,
string* error);
blaze_exit_code::ExitCode ParseOptions(int argc, const char* argv[],
const string& workspace,
const string& cwd,
string* error);
// Get the Blaze command to be executed.
// Returns an empty string if no command was found on the command line.
const string& GetCommand() const;
// Gets the arguments to the command. This is put together from the default
// options specified in the blazerc file(s), the command line, and various
// bits and pieces of information about the environment the blaze binary is
// executed in.
void GetCommandArguments(std::vector<string>* result) const;
const BlazeStartupOptions& GetParsedStartupOptions() const;
virtual string FindDepotBlazerc(const string& workspace);
virtual string FindAlongsideBinaryBlazerc(const string& cwd,
const string& arg0);
virtual blaze_exit_code::ExitCode FindUserBlazerc(const char* cmdLineRcFile,
const string& rc_basename,
const string& workspace,
string* user_blazerc_file,
string* error);
private:
class RcOption {
public:
RcOption(int rcfile_index, const string& option);
const int rcfile_index() const { return rcfile_index_; }
const string& option() const { return option_; }
private:
int rcfile_index_;
string option_;
};
class RcFile {
public:
RcFile(const string& filename, int index);
blaze_exit_code::ExitCode Parse(
std::vector<RcFile>* rcfiles,
std::map<string, std::vector<RcOption> >* rcoptions,
string* error);
const string& Filename() const { return filename_; }
const int Index() const { return index_; }
private:
static blaze_exit_code::ExitCode Parse(string filename, const int index,
std::vector<RcFile>* rcfiles,
std::map<string,
std::vector<RcOption> >* rcoptions,
std::list<string>* import_stack,
string* error);
string filename_;
int index_;
};
void AddRcfileArgsAndOptions(bool batch, const string& cwd);
blaze_exit_code::ExitCode ParseStartupOptions(string *error);
std::vector<RcFile> blazercs_;
std::map<string, std::vector<RcOption> > rcoptions_;
std::vector<string> args_;
unsigned int startup_args_;
string command_;
std::vector<string> command_arguments_;
bool initialized_;
std::unique_ptr<BlazeStartupOptions> parsed_startup_options_;
};
} // namespace blaze
#endif // DEVTOOLS_BLAZE_MAIN_OPTION_PROCESSOR_H_
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