eval.hh

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/* ========================================================================== *
 *
 * @file flox/eval.hh
 *
 * @brief Executable command helpers, argument parsers, etc.
 *
 *
 * -------------------------------------------------------------------------- */
 
#pragma once
 
#include <filesystem>
 
#include <argparse/argparse.hpp>
 
#include "flox/core/command.hh"
#include "flox/core/nix-state.hh"
 
 
/* -------------------------------------------------------------------------- */
 
namespace flox {
 
/* -------------------------------------------------------------------------- */
 
class EvalCommand : flox::NixState
{
 
private:
 
  command::VerboseParser parser;
 
  enum output_style {
    STYLE_VALUE, 
    STYLE_RAW,   
    STYLE_JSON   
  };             /* End enum `output_style' */
  output_style style = STYLE_VALUE;
 
  std::optional<std::filesystem::path> file;
  std::optional<std::string>           expr;
 
 
public:
 
  EvalCommand();
 
  [[nodiscard]] command::VerboseParser &
  getParser()
  {
    return this->parser;
  }
 
  int
  run();
 
 
}; /* End class `EvalCommand' */
 
 
/* -------------------------------------------------------------------------- */
 
}  // namespace flox
 
 
/* -------------------------------------------------------------------------- *
 *
 *
 *
 * ========================================================================== */