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#include "fs/extfs.hpp"
#include <linenoise.h>
#include <cstdint>
#include <iostream>
#include <stdexcept>
#include <string>
enum struct result : std::uint8_t
{
keep_going,
fatal_error,
exit,
unknown,
};
result process(std::string const & command)
{
if(command == "exit" || command.empty())
{
return result::exit;
}
return result::unknown;
}
std::string prompt(fs::extfs const & disk)
{
using namespace std::string_literals;
auto const promptText = "["s + (disk.has_label() ? disk.label() : "No Label") + "] > ";
auto const input = linenoise(promptText.c_str());
if(input)
{
linenoiseHistoryAdd(input);
auto const inputString = std::string{input};
linenoiseFree(input);
return inputString;
}
return {};
}
void repl(fs::extfs & disk)
{
result commandResult = result::unknown;
while((commandResult = process(prompt(disk))) != result::exit)
{
switch(commandResult)
{
case result::unknown:
std::cout << "unknown command\n";
break;
case result::fatal_error:
std::cout << "fatal error\n";
return;
default:
break;
}
}
std::cout << "Bye!\n";
}
int main(int argc, char const * argv[])
{
auto const & path = [&]{ return std::string{argc > 1 ? argv[1] : "vdisk.img"}; }();
fs::extfs disk{path};
if(disk.open())
{
linenoiseHistorySetMaxLen(1024);
repl(disk);
}
else
{
std::clog << "Failed to open ext*fs at: '" << path << "'\n";
}
}
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