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// This file is part of Cait <https://github.com/Fuwn/cait>.
// Copyright (C) 2022-2022 Fuwn <[email protected]>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 3.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// Copyright (C) 2022-2022 Fuwn <[email protected]>
// SPDX-License-Identifier: GPL-3.0-only
#include <thread>
#include "help.hh"
namespace cait {
auto help_message() -> std::string {
std::ostringstream help;
help
<< "usage: cait [options] [targets...]\n"
"\n"
"if targets are unspecified, builds the 'default' target (see "
"manual).\n"
"\n"
"options:\n"
" --version print cait version (\"" +
version::whole() +
"\")\n"
" -v, --verbose "
"show all command "
"lines while "
"building\n"
"\n"
" -C DIR "
"change to DIR "
"before doing "
"anything else\n"
" -f FILE "
"specify input "
"build file "
"[default=build."
"cait]\n"
"\n"
" -j N run N "
"jobs in parallel "
"(0 means "
"infinity) "
"[default="
<< std::thread::hardware_concurrency() + 2
<< " on this system]\n"
" -k N keep going until N jobs fail (0 means infinity) "
"[default=1]\n"
" -l N do not start new jobs if the load average is greater "
"than N\n"
" -n dry run (don't run commands but act like they succeeded)\n"
"\n"
" -d MODE enable debugging (use '-d list' to list modes)\n"
" -t TOOL run a subtool (use '-t list' to list subtools)\n"
" terminates toplevel options; further flags are passed to the "
"tool\n"
" -w FLAG adjust warnings (use '-w list' to list warnings)";
return help.str();
}
} // namespace cait
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