Luna/apps/edit.cpp

#include <os/ArgumentParser.h>
#include <os/File.h>

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

Result<int> luna_main(int argc, char** argv)
{
    StringView pathname;

    os::ArgumentParser parser;
    parser.add_positional_argument(pathname, "path"_sv, true);
    parser.parse(argc, argv);

    auto file = TRY(os::File::open_or_create(pathname, os::File::WriteOnly));

    char buffer[4096];

    while (1)
    {
        char* rc = fgets(buffer, sizeof(buffer), stdin);
        if (rc == 0) break;
        TRY(file->write(StringView { buffer }));
    }

    return 0;
}