filesystem_helper.hpp

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// Copyright (c) 2019, Open Source Robotics Foundation, Inc.
//
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// modification, are permitted provided that the following conditions are met:
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//      notice, this list of conditions and the following disclaimer.
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//    * Redistributions in binary form must reproduce the above copyright
//      notice, this list of conditions and the following disclaimer in the
//      documentation and/or other materials provided with the distribution.
//
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//      contributors may be used to endorse or promote products derived from
//      this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// This file is originally from:
// https://github.com/ros/pluginlib/blob/1a4de29fa55173e9b897ca8ff57ebc88c047e0b3/pluginlib/include/pluginlib/impl/filesystem_helper.hpp
 
#ifndef RCPPUTILS__FILESYSTEM_HELPER_HPP_
#define RCPPUTILS__FILESYSTEM_HELPER_HPP_
 
#include <string>
#include <vector>
 
#include "rcpputils/visibility_control.hpp"
 
namespace rcpputils
{
namespace fs
{
 
#ifdef _WIN32
#  define RCPPUTILS_IMPL_OS_DIRSEP '\\'
#else
#  define RCPPUTILS_IMPL_OS_DIRSEP '/'
#endif
 
static constexpr const char kPreferredSeparator = RCPPUTILS_IMPL_OS_DIRSEP;
 
#undef RCPPUTILS_IMPL_OS_DIRSEP
 
 
class path
{
public:
  RCPPUTILS_PUBLIC
  path() = default;
 
  RCPPUTILS_PUBLIC
  path(const std::string & p);  // NOLINT(runtime/explicit): this is a conversion constructor
 
  RCPPUTILS_PUBLIC path(const path & p) = default;
 
  RCPPUTILS_PUBLIC std::string string() const;
 
  RCPPUTILS_PUBLIC bool exists() const;
 
  RCPPUTILS_PUBLIC bool is_directory() const noexcept;
 
  RCPPUTILS_PUBLIC bool is_regular_file() const noexcept;
 
  RCPPUTILS_PUBLIC uint64_t file_size() const;
 
  RCPPUTILS_PUBLIC bool empty() const;
 
  RCPPUTILS_PUBLIC bool is_absolute() const;
 
  RCPPUTILS_PUBLIC std::vector<std::string>::const_iterator cbegin() const;
 
  RCPPUTILS_PUBLIC std::vector<std::string>::const_iterator cend() const;
 
  RCPPUTILS_PUBLIC path parent_path() const;
 
  RCPPUTILS_PUBLIC path filename() const;
 
  RCPPUTILS_PUBLIC path extension() const;
 
  RCPPUTILS_PUBLIC path operator/(const std::string & other) const;
 
  RCPPUTILS_PUBLIC path & operator/=(const std::string & other);
 
  RCPPUTILS_PUBLIC path operator/(const path & other) const;
 
  RCPPUTILS_PUBLIC path & operator/=(const path & other);
 
private:
  std::string path_;
  std::vector<std::string> path_as_vector_;
};
 
RCPPUTILS_PUBLIC bool is_regular_file(const path & p) noexcept;
 
RCPPUTILS_PUBLIC bool is_directory(const path & p) noexcept;
 
RCPPUTILS_PUBLIC uint64_t file_size(const path & p);
 
RCPPUTILS_PUBLIC bool exists(const path & path_to_check);
 
 
RCPPUTILS_PUBLIC path temp_directory_path();
 
RCPPUTILS_PUBLIC path create_temp_directory(
  const std::string & base_name,
  const path & parent_path = temp_directory_path());
 
RCPPUTILS_PUBLIC path current_path();
 
RCPPUTILS_PUBLIC bool create_directories(const path & p);
 
RCPPUTILS_PUBLIC bool remove(const path & p);
 
RCPPUTILS_PUBLIC bool remove_all(const path & p);
 
RCPPUTILS_PUBLIC path remove_extension(const path & file_path, int n_times = 1);
 
RCPPUTILS_PUBLIC bool operator==(const path & a, const path & b);
RCPPUTILS_PUBLIC bool operator!=(const path & a, const path & b);
 
RCPPUTILS_PUBLIC std::ostream & operator<<(std::ostream & os, const path & p);
 
}  // namespace fs
}  // namespace rcpputils
 
#endif  // RCPPUTILS__FILESYSTEM_HELPER_HPP_