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/*
* creator.cc - Implementation of the HorizonScript image creator
* image, the image processing utilities for
* Project Horizon
*
* Copyright (c) 2020 Adélie Linux and contributors. All rights reserved.
* This code is licensed under the AGPL 3.0 license, as noted in the
* LICENSE-code file in the root directory of this repository.
*
* SPDX-License-Identifier: AGPL-3.0-only
*/
#include <boost/program_options.hpp>
#include <cstdlib> /* EXIT_* */
#include <string>
#include "hscript/script.hh"
#include "util/output.hh"
bool pretty = true;
#define DESCR_TEXT "Usage: hscript-image [OPTION]... [INSTALLFILE]\n"\
"Write an operating system image configured per INSTALLFILE"
int main(int argc, char *argv[]) {
using namespace boost::program_options;
bool needs_help{}, disable_pretty{};
int exit_code = EXIT_SUCCESS;
std::string if_path{"/etc/horizon/installfile"}, ir_dir{"/target"};
options_description ui{DESCR_TEXT};
options_description general{"General options"};
general.add_options()
("help,h", bool_switch(&needs_help), "Display this message.")
("no-colour,n", bool_switch(&disable_pretty), "Do not 'prettify' output")
;
options_description target{"Target control options"};
target.add_options()
("output,o", value<std::string>()->default_value("image.tar"), "Desired filename for the output file.")
("type,t", value<std::string>()->default_value("tar"), "Type of output file to generate. Use 'list' for a list of supported types.")
("ir-dir,i", value<std::string>()->default_value("/target"), "Where to store intermediate files.")
;
ui.add(general).add(target);
options_description all;
all.add(ui).add_options()("installfile", value<std::string>()->default_value(if_path), "The HorizonScript to use for configuring the image.");
positional_options_description positional;
positional.add("installfile", 1);
command_line_parser parser{argc, argv};
parser.options(all);
parser.positional(positional);
variables_map vm;
try {
auto result = parser.run();
store(result, vm);
notify(vm);
} catch(const std::exception &ex) {
std::cerr << ex.what() << std::endl;
exit_code = EXIT_FAILURE;
needs_help = true;
}
/* --help, or usage failure */
if(needs_help) {
std::cout << ui << std::endl;
return exit_code;
}
/* -n/--no-colour, or logging to file */
if(disable_pretty || !isatty(1)) {
pretty = false;
}
if(!vm["installfile"].empty()) {
if_path = vm["installfile"].as<std::string>();
}
Horizon::Script *my_script;
if(if_path == "-") {
my_script = Horizon::Script::load(std::cin);
} else {
my_script = Horizon::Script::load(if_path);
}
/* if an error occurred during parsing, bail out now */
if(!my_script) {
return EXIT_FAILURE;
}
if(!vm["ir-dir"].empty()) {
my_script->setTargetDirectory(vm["ir-dir"].as<std::string>());
}
delete my_script;
return exit_code;
}
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