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34bfa38691
* Add copyright check * Remove old license message * Implement suggestions from code review
38 lines
1.5 KiB
C++
38 lines
1.5 KiB
C++
// Copyright (c) 2017-2020, University of Cincinnati, developed by Henry Schreiner
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// under NSF AWARD 1414736 and by the respective contributors.
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// All rights reserved.
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//
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// SPDX-License-Identifier: BSD-3-Clause
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#include "subcommand_a.hpp"
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#include <iostream>
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#include <memory>
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/// Set up a subcommand and capture a shared_ptr to a struct that holds all its options.
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/// The variables of the struct are bound to the CLI options.
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/// We use a shared ptr so that the addresses of the variables remain for binding,
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/// You could return the shared pointer if you wanted to access the values in main.
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void setup_subcommand_a(CLI::App &app) {
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// Create the option and subcommand objects.
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auto opt = std::make_shared<SubcommandAOptions>();
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auto sub = app.add_subcommand("subcommand_a", "performs subcommand a");
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// Add options to sub, binding them to opt.
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sub->add_option("-f,--file", opt->file, "File name")->required();
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sub->add_flag("--with-foo", opt->with_foo, "Counter");
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// Set the run function as callback to be called when this subcommand is issued.
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sub->callback([opt]() { run_subcommand_a(*opt); });
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}
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/// The function that runs our code.
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/// This could also simply be in the callback lambda itself,
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/// but having a separate function is cleaner.
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void run_subcommand_a(SubcommandAOptions const &opt) {
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// Do stuff...
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std::cout << "Working on file: " << opt.file << std::endl;
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if(opt.with_foo) {
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std::cout << "Using foo!" << std::endl;
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}
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}
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