File: read_mapper_indexer_step1.cpp

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seqan3 3.0.2%2Bds-9
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#include <seqan3/argument_parser/all.hpp>
#include <seqan3/core/debug_stream.hpp>

void run_program(std::filesystem::path const & reference_path,
                 std::filesystem::path const & index_path)
{
    seqan3::debug_stream << "reference_file_path: " << reference_path << '\n';
    seqan3::debug_stream << "index_path           " << index_path << '\n';
}

struct cmd_arguments
{
    std::filesystem::path reference_path{};
    std::filesystem::path index_path{"out.index"};
};

void initialise_argument_parser(seqan3::argument_parser & parser, cmd_arguments & args)
{
    parser.info.author = "E. coli";
    parser.info.short_description = "Creates an index over a reference.";
    parser.info.version = "1.0.0";
    parser.add_option(args.reference_path, 'r', "reference", "The path to the reference.",
                      seqan3::option_spec::REQUIRED,
                      seqan3::input_file_validator{{"fa","fasta"}});
    parser.add_option(args.index_path, 'o', "output", "The output index file path.",
                      seqan3::option_spec::DEFAULT,
                      seqan3::output_file_validator{{"index"}});
}

//![main]
int main(int argc, char const ** argv)
{
    seqan3::argument_parser parser("Indexer", argc, argv);
    cmd_arguments args{};

    initialise_argument_parser(parser, args);

    try
    {
        parser.parse();
    }
    catch (seqan3::argument_parser_error const & ext)
    {
        std::cerr << "[PARSER ERROR] " << ext.what() << '\n';
        return -1;
    }

    run_program(args.reference_path, args.index_path);

    return 0;
}
//![main]