#include "mv_subcommand.hpp"

#include <filesystem>

#include <system_error>

#include "../utils/git_exception.hpp"

#include "../wrapper/index_wrapper.hpp"

#include "../wrapper/repository_wrapper.hpp"

namespace fs = std::filesystem;

mv_subcommand::mv_subcommand(const libgit2_object&, CLI::App& app)

{

auto* sub = app.add_subcommand("mv", "Move or rename a file, a directory, or a symlink");

sub->add_option("<source>", m_source_path, "The path of the source to move")->required()->check(CLI::ExistingFile);

sub->add_option("<destination>", m_destination_path, "The path of the destination")->required();

sub->add_flag("-f,--force", m_force, "Force renaming or moving of a file even if the <destination> exists.");

sub->callback(

[this]()

{

this->run();

}

);

}

void mv_subcommand::run()

{

auto directory = get_current_git_path();

auto repo = repository_wrapper::open(directory);

bool exists = fs::exists(m_destination_path) && !fs::is_directory(m_destination_path);

if (exists && !m_force)

{

// TODO: replace magic number with enum when diff command is merged

throw git_exception("destination already exists", git2cpp_error_code::FILESYSTEM_ERROR);

}

std::error_code ec;

fs::rename(m_source_path, m_destination_path, ec);

if (ec)

{

throw git_exception("Could not move file", ec.value());

}

auto index = repo.make_index();

index.remove_entry(m_source_path);

index.add_entry(m_destination_path);

index.write();

}