fcb8d040e8
Instead of lengthy blurbs, switch to single-line, machine-readable standardized (https://spdx.dev) license identifiers. The Linux kernel switched long ago, so there is strong precedent. Three cases are handled: AGPL-only, Apache-only, and dual licensed. For the latter case, I chose (AGPL-3.0-or-later and Apache-2.0), reasoning that our changes are extensive enough to apply our license. The changes we applied mechanically with a script, except to licenses/README.md. Closes #9937
65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
/*
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* Copyright (C) 2021-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#include <boost/algorithm/string/join.hpp>
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#include <boost/range/adaptor/transformed.hpp>
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#include <boost/program_options.hpp>
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#include <seastar/core/app-template.hh>
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#include <string>
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#include <vector>
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#include <fmt/format.h>
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#include "seastarx.hh"
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namespace tools::utils {
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template<typename Op>
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concept Operation = requires(Op op) {
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{ op.name() }; // returns some string
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};
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// Extract the operation from the argv.
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//
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// The operation is expected to be at argv[1].If found, it is shifted out to the
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// end (effectively removed) and the corresponding Op* is returned.
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// If not found or unrecognized an error is logged and exit() is called.
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template <Operation Op>
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const Op& get_selected_operation(int& ac, char**& av, const std::vector<Op>& operations, std::string_view alias) {
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if (ac < 2) {
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fmt::print(std::cerr, "error: missing mandatory {} argument\n", alias);
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exit(1);
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}
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const Op* found_operation = nullptr;
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for (const auto& op : operations) {
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if (av[1] == op.name()) {
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found_operation = &op;
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break;
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}
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}
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if (found_operation) {
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--ac;
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for (int i = 1; i < ac; ++i) {
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std::swap(av[i], av[i + 1]);
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}
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return *found_operation;
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}
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const auto all_operation_names = boost::algorithm::join(operations | boost::adaptors::transformed([] (const Op& op) { return op.name(); } ), ", ");
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fmt::print(std::cerr, "error: unrecognized {} argument: expected one of ({}), got {}\n", alias, all_operation_names, av[1]);
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exit(1);
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}
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// Configure seastar with defaults more appropriate for a tool.
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// Make seastar not act as if it owns the place, taking over all system resources.
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// Set ERROR as the default log level, except for the logger \p logger_name, which
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// is configured with INFO level.
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void configure_tool_mode(app_template::seastar_options& opts, const sstring& logger_name = {});
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} // namespace tools::utils
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