using nana filesystem
This commit is contained in:
qPCR4vir
parent
3eee1f76b9
commit
a8b5e92947
@ -38,10 +38,9 @@
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#define NANA_USING_STD_FILESYSTEM 0
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#define NANA_USING_BOOST_FILESYSTEM 0
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#define NANA_FILESYSTEM_FORCE 1
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//#define NANA_FILESYSTEM_FORCE 1
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#if (defined(NANA_FILESYSTEM_FORCE) || ( (defined(STD_FILESYSTEM_NOT_SUPPORTED) && !defined(BOOST_FILESYSTEM_AVAILABLE)) && !(defined(BOOST_FILESYSTEM_FORCE) || defined(STD_FILESYSTEM_FORCE)) ) )
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#undef NANA_USING_NANA_FILESYSTEM
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#define NANA_USING_NANA_FILESYSTEM 1
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@ -142,13 +141,13 @@ namespace nana {
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none = 0, ///< has not been determined or an error occurred while trying to determine
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not_found = -1, ///< Pseudo-type: file was not found. Is not considered an error
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regular = 1,
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directory = 2 ,
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symlink =3, ///< Symbolic link file
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block =4, ///< Block special file
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character= 5 , ///< Character special file
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fifo = 6 , ///< FIFO or pipe file
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socket =7,
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unknown= 8 ///< The file does exist, but is of an operating system dependent type not covered by any of the other
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directory = 2,
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symlink = 3, ///< Symbolic link file
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block = 4, ///< Block special file
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character = 5, ///< Character special file
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fifo = 6, ///< FIFO or pipe file
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socket = 7,
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unknown = 8 ///< The file does exist, but is of an operating system dependent type not covered by any of the other
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};
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enum class perms
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@ -186,11 +185,14 @@ namespace nana {
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// observers
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file_type type() const;
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perms permissions() const;
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// modifiers
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void type(file_type ft);
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void permissions(perms prms);
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private:
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file_type value_;
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perms perms_;
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@ -218,48 +220,72 @@ namespace nana {
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path() = default;
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template<typename Source>
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path(const Source& source)
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path(const Source &source)
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{
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_m_assign(source);
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}
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// modifiers
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void clear() noexcept;
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path& make_preferred();
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path& remove_filename();
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path &make_preferred();
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path &remove_filename();
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//path& replace_filename(const path& replacement);
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//path& replace_extension(const path& replacement = path());
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//void swap(path& rhs) noexcept;
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// decomposition
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path root_name() const;
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path root_directory() const;
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path root_path() const;
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path relative_path() const;
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path parent_path() const;
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path filename() const;
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path stem() const;
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path extension() const;
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// query
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bool empty() const noexcept;
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bool has_root_name() const { return !root_name().empty(); }
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bool has_root_directory() const { return !root_directory().empty(); }
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bool has_root_path() const { return !root_path().empty(); }
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bool has_relative_path() const { return !relative_path().empty(); }
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bool has_parent_path() const { return !parent_path().empty(); }; // temp;;
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bool has_filename() const { return !filename().empty(); }; // temp;
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bool has_root_name() const
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{ return !root_name().empty(); }
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bool has_root_directory() const
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{ return !root_directory().empty(); }
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bool has_root_path() const
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{ return !root_path().empty(); }
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bool has_relative_path() const
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{ return !relative_path().empty(); }
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bool has_parent_path() const
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{ return !parent_path().empty(); }; // temp;;
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bool has_filename() const
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{ return !filename().empty(); }; // temp;
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//bool has_stem() const;
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bool has_extension() const { return !extension().empty(); }; // temp
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bool has_extension() const
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{ return !extension().empty(); }; // temp
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bool is_absolute() const;
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bool is_relative() const;
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int compare(const path& other) const;
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int compare(const path &other) const;
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file_type what() const;
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const value_type*c_str() const;
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const string_type& native() const;
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const value_type *c_str() const;
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const string_type &native() const;
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operator string_type() const;
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std::string string() const;
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@ -281,46 +307,55 @@ namespace nana {
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path lexically_normal() const;
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//appends
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path& operator/=(const path& other);
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path &operator/=(const path &other);
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template<typename Source>
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path& operator/=(const Source& source)
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path &operator/=(const Source &source)
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{
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path other(source);
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return this->operator/=(other);
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}
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template<typename Source>
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path& append(const Source& source)
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path &append(const Source &source)
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{
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path other(source);
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return this->operator/=(other);
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}
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private:
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void _m_assign(const std::string& source_utf8);
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void _m_assign(const std::wstring& source);
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void _m_assign(const std::string &source_utf8);
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void _m_assign(const std::wstring &source);
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private:
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string_type pathstr_;
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};
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bool operator==(const path& lhs, const path& rhs);
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bool operator!=(const path& lhs, const path& rhs);
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bool operator<(const path& lhs, const path& rhs);
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bool operator>(const path& lhs, const path& rhs);
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path operator/(const path& lhs, const path& rhs);
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bool operator==(const path &lhs, const path &rhs);
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bool operator!=(const path &lhs, const path &rhs);
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bool operator<(const path &lhs, const path &rhs);
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bool operator>(const path &lhs, const path &rhs);
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path operator/(const path &lhs, const path &rhs);
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class filesystem_error
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: public std::system_error
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{
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public:
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explicit filesystem_error(const std::string& msg, std::error_code);
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explicit filesystem_error(const std::string &msg, std::error_code);
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filesystem_error(const std::string& msg, const path& path1, std::error_code err);
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filesystem_error(const std::string& msg, const path& path1, const path& path2, std::error_code err);
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filesystem_error(const std::string &msg, const path &path1, std::error_code err);
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const path& path1() const noexcept;
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const path& path2() const noexcept;
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filesystem_error(const std::string &msg, const path &path1, const path &path2, std::error_code err);
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const path &path1() const noexcept;
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const path &path2() const noexcept;
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// const char* what() const noexcept;
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private:
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path path1_;
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@ -332,65 +367,78 @@ namespace nana {
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{
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public:
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directory_entry() = default;
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explicit directory_entry(const ::nana::experimental::filesystem::path&);
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explicit directory_entry(const filesystem::path &);
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//modifiers
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void assign(const ::nana::experimental::filesystem::path&);
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void replace_filename(const ::nana::experimental::filesystem::path&);
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void assign(const filesystem::path &);
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void replace_filename(const filesystem::path &);
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//observers
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file_status status() const;
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operator const filesystem::path&() const { return path_; };
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const filesystem::path& path() const;
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operator const filesystem::path &() const
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{ return path_; };
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const filesystem::path &path() const;
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private:
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::nana::experimental::filesystem::path path_;
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filesystem::path path_;
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};
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/// InputIterator that iterate over the sequence of directory_entry elements representing the files in a directory, not an recursive_directory_iterator
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class directory_iterator :public std::iterator<std::input_iterator_tag, directory_entry>
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class directory_iterator : public std::iterator<std::input_iterator_tag, directory_entry>
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{
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using find_handle = void*;
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using find_handle = void *;
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public:
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directory_iterator() noexcept;
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explicit directory_iterator(const path& p);
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directory_iterator(const path& p, directory_options opt);
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const value_type& operator*() const;
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const value_type* operator->() const;
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explicit directory_iterator(const path &p);
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directory_iterator(const path &p, directory_options opt);
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const value_type &operator*() const;
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const value_type *operator->() const;
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directory_iterator &operator++();
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directory_iterator& operator++();
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directory_iterator operator++(int); ///< extention
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bool equal(const directory_iterator& x) const;
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bool equal(const directory_iterator &x) const;
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private:
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template<typename Char>
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static bool _m_ignore(const Char * p)
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static bool _m_ignore(const Char *p)
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{
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while(*p == '.')
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while (*p == '.')
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++p;
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return (*p == 0);
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}
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void _m_prepare(const path& file_path);
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void _m_prepare(const path &file_path);
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void _m_read();
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private:
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bool end_{false};
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path::string_type path_;
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directory_options option_{ directory_options::none };
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directory_options option_{directory_options::none};
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std::shared_ptr<find_handle> find_ptr_;
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find_handle handle_{nullptr};
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value_type value_;
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};
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/// enable directory_iterator range-based for statements
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inline directory_iterator begin( directory_iterator iter) noexcept
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inline directory_iterator begin(directory_iterator iter) noexcept
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{
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return iter;
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}
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inline directory_iterator end( const directory_iterator&) noexcept
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inline directory_iterator end(const directory_iterator &) noexcept
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{
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return {};
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}
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@ -402,29 +450,32 @@ namespace nana {
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//recursive_directory_iterator end(const recursive_directory_iterator&) noexcept;
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//template<typename Value_Type>
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inline bool operator==(const directory_iterator/*<Value_Type>*/ & x, const directory_iterator/*<Value_Type>*/ & y)
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inline bool operator==(const directory_iterator/*<Value_Type>*/ &x, const directory_iterator/*<Value_Type>*/ &y)
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{
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return x.equal(y);
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}
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//template<typename Value_Type>
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inline bool operator!=(const directory_iterator/*<Value_Type>*/ & x, const directory_iterator/*<Value_Type>*/ & y)
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inline bool operator!=(const directory_iterator/*<Value_Type>*/ &x, const directory_iterator/*<Value_Type>*/ &y)
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{
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return !x.equal(y);
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}
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file_status status(const path& p);
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file_status status(const path& p, std::error_code&);
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file_status status(const path &p);
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std::uintmax_t file_size(const path& p);
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std::uintmax_t file_size(const path& p, std::error_code& ec) noexcept;
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file_status status(const path &p, std::error_code &);
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std::uintmax_t file_size(const path &p);
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std::uintmax_t file_size(const path &p, std::error_code &ec) noexcept;
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inline bool is_directory(file_status s) noexcept
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{ return s.type() == file_type::directory ;}
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{ return s.type() == file_type::directory; }
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bool is_directory(const path& p);
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bool is_directory(const path& p, std::error_code& ec) noexcept;
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bool is_directory(const path &p);
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bool is_directory(const path &p, std::error_code &ec) noexcept;
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inline bool is_regular_file(file_status s) noexcept
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{
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@ -438,7 +489,7 @@ namespace nana {
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// bool is_regular_file(const path& p, error_code& ec) noexcept; // todo:
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// Returns: is_regular_file(status(p, ec)).Returns false if an error occurs. // todo:
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inline bool is_empty(const path& p)
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inline bool is_empty(const path &p)
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{
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auto fs = status(p);
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@ -450,34 +501,38 @@ namespace nana {
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// bool is_empty(const path& p, error_code& ec) noexcept;
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bool create_directories(const path& p);
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bool create_directories(const path &p);
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//bool create_directories(const path& p, error_code& ec) noexcept;
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bool create_directory(const path& p);
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bool create_directory(const path &p);
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//bool create_directory(const path& p, error_code& ec) noexcept;
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bool create_directory(const path& p, const path& attributes);
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bool create_directory(const path &p, const path &attributes);
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//bool create_directory(const path& p, const path& attributes, error_code& ec) noexcept;
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/// The time of last data modification of p, determined as if by the value of the POSIX
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/// stat structure member st_mtime obtained as if by POSIX stat().
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file_time_type last_write_time(const path& p);
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file_time_type last_write_time(const path &p);
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/// returns file_time_type::min() if an error occurs
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//file_time_type last_write_time(const path& p, error_code& ec) noexcept;
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path current_path();
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//path current_path(error_code& ec);
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void current_path(const path& p); ///< chdir
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void current_path(const path &p); ///< chdir
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//void current_path(const path& p, error_code& ec) noexcept;
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bool remove(const path& p);
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bool remove(const path& p, std::error_code& ec); // noexcept;
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bool remove(const path &p);
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bool remove(const path &p, std::error_code &ec); // noexcept;
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//uintmax_t remove_all(const path& p);
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//uintmax_t remove_all(const path& p, error_code& ec) noexcept;
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template<typename CharType>
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std::basic_string<CharType> parent_path(const std::basic_string<CharType>& path)
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std::basic_string<CharType> parent_path(const std::basic_string<CharType> &path)
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{
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auto index = path.size();
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@ -529,6 +584,17 @@ namespace std
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}
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}
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#else //#if NANA_USING_NANA_FILESYSTEM
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//Implements the missing functions for various version of experimental/filesystem
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namespace std
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{
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namespace filesystem
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{
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#if defined(_MSC_VER) && ((!defined(_MSVC_LANG)) || (_MSVC_LANG < 201703))
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path absolute(const path& p);
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path absolute(const path& p, std::error_code& err);
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path canonical(const path& p);
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path canonical(const path& p, std::error_code& err);
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@ -536,19 +602,12 @@ namespace std
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path weakly_canonical(const path& p, std::error_code& err);
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#endif
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#if defined(NANA_FILESYSTEM_FORCE) || defined(NANA_MINGW)
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#if defined(NANA_MINGW) // todo ??
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bool exists( std::filesystem::file_status s ) noexcept;
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bool exists( const std::filesystem::path& p );
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bool exists( const std::filesystem::path& p, std::error_code& ec ) noexcept;
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#endif
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}
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} // std
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#else //#if NANA_USING_NANA_FILESYSTEM
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//Implements the missing functions for various version of experimental/filesystem
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namespace std
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{
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namespace filesystem
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{
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//Visual Studio 2017
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#if (defined(NANA_USING_STD_EXPERIMENTAL_FILESYSTEM) && defined(_MSC_VER) && (_MSC_VER > 1912)) || \
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(!defined(__clang__) && defined(__GNUC__) && (__cplusplus < 201603 || (__GNUC__* 100 + __GNUC_MINOR__ < 801)))
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@ -6,8 +6,8 @@
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* @file: nana/filesystem/filesystem.cpp
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* @description:
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* @file nana/filesystem/filesystem.cpp
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* @description
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* provide some interface for file management
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*/
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@ -183,7 +183,6 @@ namespace filesystem
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}
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//end class filesystem_error
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//Because of No wide character version of POSIX
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#if defined(NANA_POSIX)
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const char* separators = "/";
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@ -510,10 +509,10 @@ namespace filesystem
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return to_wstring(pathstr_);
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}
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std::string path::u8string() const
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/*std::string path::u8string() const
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{
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return to_utf8(pathstr_);
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}
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}*/
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std::string path::generic_string() const
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{
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auto str = string();
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@ -526,12 +525,12 @@ namespace filesystem
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std::replace(str.begin(), str.end(), L'\\', L'/');
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return str;
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}
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std::string path::generic_u8string() const // uppss ...
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/*std::string path::generic_u8string() const // uppss ...
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{
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auto str = pathstr_;
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std::replace(str.begin(), str.end(), '\\', '/'); // uppss ... revise this !!!!!
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return to_utf8(str);
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}
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}*/
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path path::lexically_normal() const
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{
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@ -976,7 +975,6 @@ namespace filesystem
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#endif
|
||||
}//end namespace detail
|
||||
|
||||
|
||||
file_status status(const path& p)
|
||||
{
|
||||
std::error_code err;
|
||||
@ -1180,19 +1178,216 @@ namespace filesystem
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifndef CXX_NO_INLINE_NAMESPACE
|
||||
} //end namespace v1
|
||||
path absolute(const path& p)
|
||||
{
|
||||
if (p.empty())
|
||||
return p;
|
||||
|
||||
auto abs_base = current_path();
|
||||
|
||||
// store expensive to compute values that are needed multiple times
|
||||
path p_root_name(p.root_name());
|
||||
path base_root_name(abs_base.root_name());
|
||||
path p_root_directory(p.root_directory());
|
||||
|
||||
if (!p_root_name.empty()) // p.has_root_name()
|
||||
{
|
||||
if (p_root_directory.empty()) // !p.has_root_directory()
|
||||
return p_root_name / abs_base.root_directory()
|
||||
/ abs_base.relative_path() / p.relative_path();
|
||||
// p is absolute, so fall through to return p at end of block
|
||||
}
|
||||
else if (!p_root_directory.empty()) // p.has_root_directory()
|
||||
{
|
||||
#ifdef NANA_POSIX
|
||||
// POSIX can have root name it it is a network path
|
||||
if (base_root_name.empty()) // !abs_base.has_root_name()
|
||||
return p;
|
||||
#endif
|
||||
}//end namespace filesystem
|
||||
} //end namespace experimental
|
||||
return base_root_name / p;
|
||||
}
|
||||
else
|
||||
return abs_base / p;
|
||||
|
||||
return p; // p.is_absolute() is true
|
||||
}
|
||||
|
||||
path absolute(const path& p, std::error_code& /*err*/)
|
||||
{
|
||||
return absolute(p);
|
||||
}
|
||||
|
||||
path canonical(const path& p, std::error_code* err)
|
||||
{
|
||||
path source(p.is_absolute() ? p : absolute(p));
|
||||
path root(source.root_path());
|
||||
path result;
|
||||
|
||||
std::error_code local_ec;
|
||||
file_status stat(status(source, local_ec));
|
||||
|
||||
if (stat.type() == file_type::not_found)
|
||||
{
|
||||
if (nullptr == err)
|
||||
throw (filesystem_error(
|
||||
"nana::filesystem::canonical", source,
|
||||
std::error_code(static_cast<int>(std::errc::no_such_file_or_directory), std::generic_category())));
|
||||
err->assign(static_cast<int>(std::errc::no_such_file_or_directory), std::generic_category());
|
||||
return result;
|
||||
}
|
||||
else if (local_ec)
|
||||
{
|
||||
if (nullptr == err)
|
||||
throw (filesystem_error(
|
||||
"nana::filesystem::canonical", source, local_ec));
|
||||
*err = local_ec;
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
auto tmp_p = source;
|
||||
|
||||
std::vector<path> source_elements;
|
||||
while (tmp_p != root)
|
||||
{
|
||||
source_elements.emplace(source_elements.begin(), tmp_p.filename());
|
||||
tmp_p.remove_filename();
|
||||
}
|
||||
|
||||
result = root;
|
||||
|
||||
for(auto & e : source_elements)
|
||||
{
|
||||
auto str = e.string();
|
||||
if("." == str)
|
||||
continue;
|
||||
else if(".." == str)
|
||||
{
|
||||
if(result != root)
|
||||
result.remove_filename();
|
||||
continue;
|
||||
}
|
||||
|
||||
result /= e;
|
||||
}
|
||||
|
||||
if (err)
|
||||
err->clear();
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
path canonical(const path& p)
|
||||
{
|
||||
return canonical(p, nullptr);
|
||||
}
|
||||
|
||||
path canonical(const path& p, std::error_code& err)
|
||||
{
|
||||
return canonical(p, &err);
|
||||
}
|
||||
|
||||
bool try_throw(int err_val, const path& p, std::error_code* ec, const char* message)
|
||||
{
|
||||
if (0 == err_val)
|
||||
{
|
||||
if (ec) ec->clear();
|
||||
}
|
||||
else
|
||||
{ //error
|
||||
if (nullptr == ec)
|
||||
throw (filesystem_error(
|
||||
message, p,
|
||||
std::error_code(err_val, std::generic_category())));
|
||||
else
|
||||
ec->assign(err_val, std::system_category());
|
||||
}
|
||||
return err_val != 0;
|
||||
}
|
||||
|
||||
path weakly_canonical(const path& p, std::error_code* err)
|
||||
{
|
||||
path head{ p };
|
||||
|
||||
std::error_code tmp_err;
|
||||
std::vector<path> elements;
|
||||
while (!head.empty())
|
||||
{
|
||||
auto head_status = status(head, tmp_err);
|
||||
|
||||
if (head_status.type() == file_type::unknown)
|
||||
{
|
||||
if (try_throw(static_cast<int>(std::errc::invalid_argument), head, err, "nana::filesystem::weakly_canonical"))
|
||||
return path{};
|
||||
}
|
||||
if (head_status.type() != file_type::not_found)
|
||||
break;
|
||||
|
||||
elements.emplace_back(head.filename());
|
||||
head.remove_filename();
|
||||
}
|
||||
|
||||
bool tail_has_dots = false;
|
||||
path tail;
|
||||
|
||||
for (auto & e : elements)
|
||||
{
|
||||
tail /= e;
|
||||
// for a later optimization, track if any dot or dot-dot elements are present
|
||||
if (e.native().size() <= 2
|
||||
&& e.native()[0] == '.'
|
||||
&& (e.native().size() == 1 || e.native()[1] == '.'))
|
||||
tail_has_dots = true;
|
||||
}
|
||||
|
||||
if (head.empty())
|
||||
return p.lexically_normal();
|
||||
head = canonical(head, tmp_err);
|
||||
if (try_throw(tmp_err.value(), head, err, "nana::filesystem::weakly_canonical"))
|
||||
return path();
|
||||
return tail.empty()
|
||||
? head
|
||||
: (tail_has_dots // optimization: only normalize if tail had dot or dot-dot element
|
||||
? (head / tail).lexically_normal()
|
||||
: head / tail);
|
||||
}
|
||||
|
||||
path weakly_canonical(const path& p)
|
||||
{
|
||||
return weakly_canonical(p, nullptr);
|
||||
}
|
||||
|
||||
path weakly_canonical(const path& p, std::error_code& err)
|
||||
{
|
||||
return weakly_canonical(p, &err);
|
||||
}
|
||||
|
||||
bool exists( std::filesystem::file_status s ) noexcept
|
||||
{
|
||||
return s.type() != file_type::not_found;
|
||||
}
|
||||
|
||||
bool exists( const std::filesystem::path& p )
|
||||
{
|
||||
return exists(status(p));
|
||||
}
|
||||
|
||||
bool exists( const std::filesystem::path& p, std::error_code& ec ) noexcept
|
||||
{
|
||||
return exists(status(p, ec));
|
||||
}
|
||||
|
||||
|
||||
} //end namespace filesystem
|
||||
}//end namespace nana
|
||||
#else
|
||||
|
||||
namespace std
|
||||
{
|
||||
namespace filesystem
|
||||
{
|
||||
#if defined(NANA_FILESYSTEM_FORCE) || \
|
||||
(defined(_MSC_VER) && ((!defined(_MSVC_LANG)) || (_MSVC_LANG < 201703)))
|
||||
#if defined(_MSC_VER) && ((!defined(_MSVC_LANG)) || (_MSVC_LANG < 201703))
|
||||
|
||||
path absolute(const path& p)
|
||||
{
|
||||
if (p.empty())
|
||||
@ -1377,8 +1572,8 @@ namespace std
|
||||
return weakly_canonical(p, &err);
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined(NANA_FILESYSTEM_FORCE) || defined(NANA_MINGW)
|
||||
/*
|
||||
#if defined(NANA_MINGW)
|
||||
bool exists( std::filesystem::file_status s ) noexcept
|
||||
{
|
||||
return s.type() != file_type::not_found;
|
||||
@ -1393,17 +1588,10 @@ namespace std
|
||||
{
|
||||
return exists(status(p, ec));
|
||||
}
|
||||
#endif
|
||||
*/
|
||||
}//end namespace filesystem
|
||||
}//end namespace std
|
||||
|
||||
#else //else NANA_USING_NANA_FILESYSTEM
|
||||
|
||||
//Defines the functions that are not provided by experimental/filesystem
|
||||
namespace std
|
||||
{
|
||||
namespace filesystem
|
||||
{
|
||||
#if (defined(NANA_USING_STD_EXPERIMENTAL_FILESYSTEM) && defined(_MSC_VER) && (_MSC_VER > 1912)) || \
|
||||
(!defined(__clang__) && defined(__GNUC__) && (__cplusplus < 201603 || (__GNUC__* 100 + __GNUC_MINOR__ < 801)))
|
||||
|
||||
|
||||
@ -1522,7 +1522,7 @@ namespace nana
|
||||
if (!*str)
|
||||
{
|
||||
targets.emplace_back(parent_path);
|
||||
impl_->path = parent_path.parent_path().u8string();
|
||||
impl_->path = parent_path.parent_path().string();
|
||||
}
|
||||
else
|
||||
{
|
||||
@ -1532,7 +1532,7 @@ namespace nana
|
||||
targets.emplace_back(parent_path / path_type{str});
|
||||
str += (len + 1);
|
||||
}
|
||||
impl_->path = parent_path.u8string();
|
||||
impl_->path = parent_path.string();
|
||||
}
|
||||
}
|
||||
else
|
||||
@ -1540,7 +1540,7 @@ namespace nana
|
||||
wfile.resize(std::wcslen(wfile.data()));
|
||||
|
||||
targets.emplace_back(wfile);
|
||||
impl_->path = targets.front().parent_path().u8string();
|
||||
impl_->path = targets.front().parent_path().string();
|
||||
}
|
||||
|
||||
#elif defined(NANA_POSIX)
|
||||
|
||||
@ -1267,7 +1267,7 @@ namespace nana
|
||||
auto files = impl->fbox.show();
|
||||
if(!files.empty())
|
||||
{
|
||||
impl->value = files.front().u8string();
|
||||
impl->value = files.front().string();
|
||||
impl->path_edit.caption(impl->value);
|
||||
}
|
||||
});
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user