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using nana filesystem

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This commit is contained in:
qPCR4vir 2019-11-05 21:00:33 +01:00
parent 3eee1f76b9
commit a8b5e92947
4 changed files with 726 additions and 479 deletions
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629
include/nana/filesystem/filesystem.hpp
View File

@ -38,10 +38,9 @@
#define NANA_USING_STD_FILESYSTEM 0 #define NANA_USING_STD_FILESYSTEM 0
#define NANA_USING_BOOST_FILESYSTEM 0 #define NANA_USING_BOOST_FILESYSTEM 0
#define NANA_FILESYSTEM_FORCE 1 //#define NANA_FILESYSTEM_FORCE 1
#if (defined(NANA_FILESYSTEM_FORCE) || ( (defined(STD_FILESYSTEM_NOT_SUPPORTED) && !defined(BOOST_FILESYSTEM_AVAILABLE)) && !(defined(BOOST_FILESYSTEM_FORCE) || defined(STD_FILESYSTEM_FORCE)) ) ) #if (defined(NANA_FILESYSTEM_FORCE) || ( (defined(STD_FILESYSTEM_NOT_SUPPORTED) && !defined(BOOST_FILESYSTEM_AVAILABLE)) && !(defined(BOOST_FILESYSTEM_FORCE) || defined(STD_FILESYSTEM_FORCE)) ) )
#undef NANA_USING_NANA_FILESYSTEM #undef NANA_USING_NANA_FILESYSTEM
#define NANA_USING_NANA_FILESYSTEM 1 #define NANA_USING_NANA_FILESYSTEM 1
@ -137,130 +136,157 @@ namespace std {
namespace nana { namespace nana {
namespace filesystem { namespace filesystem {
enum class file_type enum class file_type
{ {
none = 0, ///< has not been determined or an error occurred while trying to determine none = 0, ///< has not been determined or an error occurred while trying to determine
not_found = -1, ///< Pseudo-type: file was not found. Is not considered an error not_found = -1, ///< Pseudo-type: file was not found. Is not considered an error
regular = 1, regular = 1,
directory = 2 , directory = 2,
symlink =3, ///< Symbolic link file symlink = 3, ///< Symbolic link file
block =4, ///< Block special file block = 4, ///< Block special file
character= 5 , ///< Character special file character = 5, ///< Character special file
fifo = 6 , ///< FIFO or pipe file fifo = 6, ///< FIFO or pipe file
socket =7, socket = 7,
unknown= 8 ///< The file does exist, but is of an operating system dependent type not covered by any of the other unknown = 8 ///< The file does exist, but is of an operating system dependent type not covered by any of the other
}; };
enum class perms enum class perms
{ {
none = 0, ///< There are no permissions set for the file. none = 0, ///< There are no permissions set for the file.
all = 0x1FF, ///< owner_all | group_all | others_all all = 0x1FF, ///< owner_all | group_all | others_all
mask = 0xFFF, ///< all | set_uid | set_gid | sticky_bit. mask = 0xFFF, ///< all | set_uid | set_gid | sticky_bit.
unknown = 0xFFFF ///< not known, such as when a file_status object is created without specifying the permissions unknown = 0xFFFF ///< not known, such as when a file_status object is created without specifying the permissions
}; };
//enum class copy_options; //enum class copy_options;
enum class directory_options enum class directory_options
{ {
none, none,
follow_directory_symlink, follow_directory_symlink,
skip_permission_denied skip_permission_denied
}; };
struct space_info struct space_info
{ {
uintmax_t capacity; uintmax_t capacity;
uintmax_t free; uintmax_t free;
uintmax_t available; uintmax_t available;
}; };
using file_time_type = std::chrono::time_point<std::chrono::system_clock>; ///< trivial-clock> ; using file_time_type = std::chrono::time_point<std::chrono::system_clock>; ///< trivial-clock> ;
class file_status class file_status
{ {
file_type m_ft = file_type::none; file_type m_ft = file_type::none;
perms m_prms = perms::unknown; perms m_prms = perms::unknown;
public: public:
explicit file_status(file_type ft = file_type::none, perms prms = perms::unknown); explicit file_status(file_type ft = file_type::none, perms prms = perms::unknown);
// observers // observers
file_type type() const; file_type type() const;
perms permissions() const;
// modifiers perms permissions() const;
void type(file_type ft);
void permissions(perms prms);
private:
file_type value_;
perms perms_;
};
/// concerned only with lexical and syntactic aspects and does not necessarily exist in // modifiers
/// external storage, and the pathname is not necessarily valid for the current operating system void type(file_type ft);
/// or for a particular file system
/// A sequence of elements that identify the location of a file within a filesystem. void permissions(perms prms);
/// The elements are the:
/// rootname (opt), root-directory (opt), and an optional sequence of filenames. private:
/// The maximum number of elements in the sequence is operating system dependent. file_type value_;
class path perms perms_;
{ };
public:
/// concerned only with lexical and syntactic aspects and does not necessarily exist in
/// external storage, and the pathname is not necessarily valid for the current operating system
/// or for a particular file system
/// A sequence of elements that identify the location of a file within a filesystem.
/// The elements are the:
/// rootname (opt), root-directory (opt), and an optional sequence of filenames.
/// The maximum number of elements in the sequence is operating system dependent.
class path
{
public:
#if defined(NANA_WINDOWS) #if defined(NANA_WINDOWS)
using value_type = wchar_t; using value_type = wchar_t;
const static value_type preferred_separator = L'\\'; const static value_type preferred_separator = L'\\';
#else #else
using value_type = char; using value_type = char;
const static value_type preferred_separator = '/'; const static value_type preferred_separator = '/';
#endif #endif
using string_type = std::basic_string<value_type>; using string_type = std::basic_string<value_type>;
path() = default; path() = default;
template<typename Source> template<typename Source>
path(const Source& source) path(const Source &source)
{ {
_m_assign(source); _m_assign(source);
} }
// modifiers // modifiers
void clear() noexcept; void clear() noexcept;
path& make_preferred();
path& remove_filename();
//path& replace_filename(const path& replacement);
//path& replace_extension(const path& replacement = path());
//void swap(path& rhs) noexcept;
// decomposition path &make_preferred();
path root_name() const;
path root_directory() const;
path root_path() const;
path relative_path() const;
path parent_path() const;
path filename() const;
path stem() const;
path extension() const;
// query path &remove_filename();
bool empty() const noexcept; //path& replace_filename(const path& replacement);
bool has_root_name() const { return !root_name().empty(); } //path& replace_extension(const path& replacement = path());
bool has_root_directory() const { return !root_directory().empty(); } //void swap(path& rhs) noexcept;
bool has_root_path() const { return !root_path().empty(); }
bool has_relative_path() const { return !relative_path().empty(); }
bool has_parent_path() const { return !parent_path().empty(); }; // temp;;
bool has_filename() const { return !filename().empty(); }; // temp;
//bool has_stem() const;
bool has_extension() const { return !extension().empty(); }; // temp
bool is_absolute() const;
bool is_relative() const;
int compare(const path& other) const; // decomposition
path root_name() const;
file_type what() const; path root_directory() const;
const value_type*c_str() const; path root_path() const;
const string_type& native() const;
operator string_type() const; path relative_path() const;
path parent_path() const;
path filename() const;
path stem() const;
path extension() const;
// query
bool empty() const noexcept;
bool has_root_name() const
{ return !root_name().empty(); }
bool has_root_directory() const
{ return !root_directory().empty(); }
bool has_root_path() const
{ return !root_path().empty(); }
bool has_relative_path() const
{ return !relative_path().empty(); }
bool has_parent_path() const
{ return !parent_path().empty(); }; // temp;;
bool has_filename() const
{ return !filename().empty(); }; // temp;
//bool has_stem() const;
bool has_extension() const
{ return !extension().empty(); }; // temp
bool is_absolute() const;
bool is_relative() const;
int compare(const path &other) const;
file_type what() const;
const value_type *c_str() const;
const string_type &native() const;
operator string_type() const;
std::string string() const; std::string string() const;
@ -278,153 +304,178 @@ namespace nana {
// std::u16string generic_u16string() const; // std::u16string generic_u16string() const;
// std::u32string generic_u32string() const; // std::u32string generic_u32string() const;
path lexically_normal() const; path lexically_normal() const;
//appends //appends
path& operator/=(const path& other); path &operator/=(const path &other);
template<typename Source> template<typename Source>
path& operator/=(const Source& source) path &operator/=(const Source &source)
{ {
path other(source); path other(source);
return this->operator/=(other); return this->operator/=(other);
} }
template<typename Source> template<typename Source>
path& append(const Source& source) path &append(const Source &source)
{ {
path other(source); path other(source);
return this->operator/=(other); return this->operator/=(other);
} }
private:
void _m_assign(const std::string& source_utf8);
void _m_assign(const std::wstring& source);
private:
string_type pathstr_;
};
bool operator==(const path& lhs, const path& rhs); private:
bool operator!=(const path& lhs, const path& rhs); void _m_assign(const std::string &source_utf8);
bool operator<(const path& lhs, const path& rhs);
bool operator>(const path& lhs, const path& rhs); void _m_assign(const std::wstring &source);
path operator/(const path& lhs, const path& rhs);
private:
string_type pathstr_;
};
bool operator==(const path &lhs, const path &rhs);
bool operator!=(const path &lhs, const path &rhs);
bool operator<(const path &lhs, const path &rhs);
bool operator>(const path &lhs, const path &rhs);
path operator/(const path &lhs, const path &rhs);
class filesystem_error class filesystem_error
: public std::system_error : public std::system_error
{ {
public: public:
explicit filesystem_error(const std::string& msg, std::error_code); explicit filesystem_error(const std::string &msg, std::error_code);
filesystem_error(const std::string& msg, const path& path1, std::error_code err); filesystem_error(const std::string &msg, const path &path1, std::error_code err);
filesystem_error(const std::string& msg, const path& path1, const path& path2, std::error_code err);
const path& path1() const noexcept; filesystem_error(const std::string &msg, const path &path1, const path &path2, std::error_code err);
const path& path2() const noexcept;
// const char* what() const noexcept; const path &path1() const noexcept;
private:
path path1_; const path &path2() const noexcept;
path path2_; // const char* what() const noexcept;
}; private:
path path1_;
path path2_;
};
class directory_entry class directory_entry
{ {
public: public:
directory_entry() = default; directory_entry() = default;
explicit directory_entry(const ::nana::experimental::filesystem::path&);
//modifiers explicit directory_entry(const filesystem::path &);
void assign(const ::nana::experimental::filesystem::path&);
void replace_filename(const ::nana::experimental::filesystem::path&);
//observers //modifiers
file_status status() const; void assign(const filesystem::path &);
operator const filesystem::path&() const { return path_; };
const filesystem::path& path() const;
private:
::nana::experimental::filesystem::path path_;
};
/// InputIterator that iterate over the sequence of directory_entry elements representing the files in a directory, not an recursive_directory_iterator void replace_filename(const filesystem::path &);
class directory_iterator :public std::iterator<std::input_iterator_tag, directory_entry>
{
using find_handle = void*;
public:
directory_iterator() noexcept; //observers
explicit directory_iterator(const path& p); file_status status() const;
directory_iterator(const path& p, directory_options opt);
const value_type& operator*() const; operator const filesystem::path &() const
const value_type* operator->() const; { return path_; };
directory_iterator& operator++(); const filesystem::path &path() const;
directory_iterator operator++(int); ///< extention
bool equal(const directory_iterator& x) const; private:
filesystem::path path_;
};
private: /// InputIterator that iterate over the sequence of directory_entry elements representing the files in a directory, not an recursive_directory_iterator
template<typename Char> class directory_iterator : public std::iterator<std::input_iterator_tag, directory_entry>
static bool _m_ignore(const Char * p) {
{ using find_handle = void *;
while(*p == '.') public:
++p;
return (*p == 0);
}
void _m_prepare(const path& file_path); directory_iterator() noexcept;
void _m_read();
private:
bool end_{false};
path::string_type path_;
directory_options option_{ directory_options::none };
std::shared_ptr<find_handle> find_ptr_; explicit directory_iterator(const path &p);
find_handle handle_{nullptr};
value_type value_;
};
/// enable directory_iterator range-based for statements
inline directory_iterator begin( directory_iterator iter) noexcept
{
return iter;
}
inline directory_iterator end( const directory_iterator&) noexcept directory_iterator(const path &p, directory_options opt);
{
return {}; const value_type &operator*() const;
}
const value_type *operator->() const;
directory_iterator &operator++();
directory_iterator operator++(int); ///< extention
bool equal(const directory_iterator &x) const;
private:
template<typename Char>
static bool _m_ignore(const Char *p)
{
while (*p == '.')
++p;
return (*p == 0);
}
void _m_prepare(const path &file_path);
void _m_read();
private:
bool end_{false};
path::string_type path_;
directory_options option_{directory_options::none};
std::shared_ptr<find_handle> find_ptr_;
find_handle handle_{nullptr};
value_type value_;
};
/// enable directory_iterator range-based for statements
inline directory_iterator begin(directory_iterator iter) noexcept
{
return iter;
}
inline directory_iterator end(const directory_iterator &) noexcept
{
return {};
}
//class recursive_directory_iterator; //class recursive_directory_iterator;
//// enable recursive_directory_iterator range-based for statements //// enable recursive_directory_iterator range-based for statements
//recursive_directory_iterator begin(recursive_directory_iterator iter) noexcept; //recursive_directory_iterator begin(recursive_directory_iterator iter) noexcept;
//recursive_directory_iterator end(const recursive_directory_iterator&) noexcept; //recursive_directory_iterator end(const recursive_directory_iterator&) noexcept;
//template<typename Value_Type> //template<typename Value_Type>
inline bool operator==(const directory_iterator/*<Value_Type>*/ & x, const directory_iterator/*<Value_Type>*/ & y) inline bool operator==(const directory_iterator/*<Value_Type>*/ &x, const directory_iterator/*<Value_Type>*/ &y)
{ {
return x.equal(y); return x.equal(y);
} }
//template<typename Value_Type> //template<typename Value_Type>
inline bool operator!=(const directory_iterator/*<Value_Type>*/ & x, const directory_iterator/*<Value_Type>*/ & y) inline bool operator!=(const directory_iterator/*<Value_Type>*/ &x, const directory_iterator/*<Value_Type>*/ &y)
{ {
return !x.equal(y); return !x.equal(y);
} }
file_status status(const path& p); file_status status(const path &p);
file_status status(const path& p, std::error_code&);
std::uintmax_t file_size(const path& p); file_status status(const path &p, std::error_code &);
std::uintmax_t file_size(const path& p, std::error_code& ec) noexcept;
inline bool is_directory(file_status s) noexcept std::uintmax_t file_size(const path &p);
{ return s.type() == file_type::directory ;}
bool is_directory(const path& p); std::uintmax_t file_size(const path &p, std::error_code &ec) noexcept;
bool is_directory(const path& p, std::error_code& ec) noexcept;
inline bool is_directory(file_status s) noexcept
{ return s.type() == file_type::directory; }
bool is_directory(const path &p);
bool is_directory(const path &p, std::error_code &ec) noexcept;
inline bool is_regular_file(file_status s) noexcept inline bool is_regular_file(file_status s) noexcept
{ {
@ -438,67 +489,71 @@ namespace nana {
// bool is_regular_file(const path& p, error_code& ec) noexcept; // todo: // bool is_regular_file(const path& p, error_code& ec) noexcept; // todo:
// Returns: is_regular_file(status(p, ec)).Returns false if an error occurs. // todo: // Returns: is_regular_file(status(p, ec)).Returns false if an error occurs. // todo:
inline bool is_empty(const path& p) inline bool is_empty(const path &p)
{ {
auto fs = status(p); auto fs = status(p);
if (is_directory(fs)) if (is_directory(fs))
return (directory_iterator() == directory_iterator(p)); return (directory_iterator() == directory_iterator(p));
return (file_size(p) == 0); return (file_size(p) == 0);
} }
// bool is_empty(const path& p, error_code& ec) noexcept; // bool is_empty(const path& p, error_code& ec) noexcept;
bool create_directories(const path& p); bool create_directories(const path &p);
//bool create_directories(const path& p, error_code& ec) noexcept;
bool create_directory(const path& p); //bool create_directories(const path& p, error_code& ec) noexcept;
//bool create_directory(const path& p, error_code& ec) noexcept; bool create_directory(const path &p);
bool create_directory(const path& p, const path& attributes);
//bool create_directory(const path& p, const path& attributes, error_code& ec) noexcept; //bool create_directory(const path& p, error_code& ec) noexcept;
bool create_directory(const path &p, const path &attributes);
//bool create_directory(const path& p, const path& attributes, error_code& ec) noexcept;
/// The time of last data modification of p, determined as if by the value of the POSIX /// The time of last data modification of p, determined as if by the value of the POSIX
/// stat structure member st_mtime obtained as if by POSIX stat(). /// stat structure member st_mtime obtained as if by POSIX stat().
file_time_type last_write_time(const path& p); file_time_type last_write_time(const path &p);
/// returns file_time_type::min() if an error occurs /// returns file_time_type::min() if an error occurs
//file_time_type last_write_time(const path& p, error_code& ec) noexcept; //file_time_type last_write_time(const path& p, error_code& ec) noexcept;
path current_path(); path current_path();
//path current_path(error_code& ec);
void current_path(const path& p); ///< chdir
//void current_path(const path& p, error_code& ec) noexcept;
bool remove(const path& p); //path current_path(error_code& ec);
bool remove(const path& p, std::error_code& ec); // noexcept; void current_path(const path &p); ///< chdir
//void current_path(const path& p, error_code& ec) noexcept;
//uintmax_t remove_all(const path& p); bool remove(const path &p);
//uintmax_t remove_all(const path& p, error_code& ec) noexcept;
template<typename CharType> bool remove(const path &p, std::error_code &ec); // noexcept;
std::basic_string<CharType> parent_path(const std::basic_string<CharType>& path)
{
auto index = path.size();
if (index) //uintmax_t remove_all(const path& p);
{ //uintmax_t remove_all(const path& p, error_code& ec) noexcept;
auto str = path.c_str();
for (--index; index > 0; --index) template<typename CharType>
{ std::basic_string<CharType> parent_path(const std::basic_string<CharType> &path)
auto c = str[index]; {
if (c != '\\' && c != '/') auto index = path.size();
break;
}
for (--index; index > 0; --index) if (index)
{ {
auto c = str[index]; auto str = path.c_str();
if (c == '\\' || c == '/')
break; for (--index; index > 0; --index)
} {
} auto c = str[index];
if (c != '\\' && c != '/')
break;
}
for (--index; index > 0; --index)
{
auto c = str[index];
if (c == '\\' || c == '/')
break;
}
}
return index ? path.substr(0, index + 1) : std::basic_string<CharType>(); return index ? path.substr(0, index + 1) : std::basic_string<CharType>();
} }
@ -529,28 +584,32 @@ namespace std
} }
} }
path canonical(const path& p);
path canonical(const path& p, std::error_code& err);
path weakly_canonical(const path& p);
path weakly_canonical(const path& p, std::error_code& err);
#endif
#if defined(NANA_FILESYSTEM_FORCE) || defined(NANA_MINGW)
bool exists( std::filesystem::file_status s ) noexcept;
bool exists( const std::filesystem::path& p );
bool exists( const std::filesystem::path& p, std::error_code& ec ) noexcept;
#endif
}
} // std
#else //#if NANA_USING_NANA_FILESYSTEM #else //#if NANA_USING_NANA_FILESYSTEM
//Implements the missing functions for various version of experimental/filesystem //Implements the missing functions for various version of experimental/filesystem
namespace std namespace std
{ {
namespace filesystem namespace filesystem
{ {
//Visual Studio 2017 #if defined(_MSC_VER) && ((!defined(_MSVC_LANG)) || (_MSVC_LANG < 201703))
#if (defined(NANA_USING_STD_EXPERIMENTAL_FILESYSTEM) && defined(_MSC_VER) && (_MSC_VER > 1912)) || \ path absolute(const path& p);
path absolute(const path& p, std::error_code& err);
path canonical(const path& p);
path canonical(const path& p, std::error_code& err);
path weakly_canonical(const path& p);
path weakly_canonical(const path& p, std::error_code& err);
#endif
#if defined(NANA_MINGW) // todo ??
bool exists( std::filesystem::file_status s ) noexcept;
bool exists( const std::filesystem::path& p );
bool exists( const std::filesystem::path& p, std::error_code& ec ) noexcept;
#endif
//Visual Studio 2017
#if (defined(NANA_USING_STD_EXPERIMENTAL_FILESYSTEM) && defined(_MSC_VER) && (_MSC_VER > 1912)) || \
(!defined(__clang__) && defined(__GNUC__) && (__cplusplus < 201603 || (__GNUC__* 100 + __GNUC_MINOR__ < 801))) (!defined(__clang__) && defined(__GNUC__) && (__cplusplus < 201603 || (__GNUC__* 100 + __GNUC_MINOR__ < 801)))
path weakly_canonical(const path& p); path weakly_canonical(const path& p);
path weakly_canonical(const path& p, std::error_code& err); path weakly_canonical(const path& p, std::error_code& err);

568
source/filesystem/filesystem.cpp
View File

@ -6,8 +6,8 @@
* (See accompanying file LICENSE_1_0.txt or copy at * (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt) * http://www.boost.org/LICENSE_1_0.txt)
* *
* @file: nana/filesystem/filesystem.cpp * @file nana/filesystem/filesystem.cpp
* @description: * @description
* provide some interface for file management * provide some interface for file management
*/ */
@ -156,35 +156,34 @@ namespace nana
{ {
namespace filesystem namespace filesystem
{ {
//class filesystem_error //class filesystem_error
filesystem_error::filesystem_error(const std::string& msg, std::error_code err) filesystem_error::filesystem_error(const std::string& msg, std::error_code err)
: std::system_error(err, msg) : std::system_error(err, msg)
{} {}
filesystem_error::filesystem_error(const std::string& msg, const path& path1, std::error_code err) filesystem_error::filesystem_error(const std::string& msg, const path& path1, std::error_code err)
: std::system_error(err, msg), : std::system_error(err, msg),
path1_(path1) path1_(path1)
{} {}
filesystem_error::filesystem_error(const std::string& msg, const path& path1, const path& path2, std::error_code err) filesystem_error::filesystem_error(const std::string& msg, const path& path1, const path& path2, std::error_code err)
: std::system_error(err, msg), : std::system_error(err, msg),
path1_(path1), path1_(path1),
path2_(path2) path2_(path2)
{} {}
const path& filesystem_error::path1() const noexcept const path& filesystem_error::path1() const noexcept
{ {
return path1_; return path1_;
} }
const path& filesystem_error::path2() const noexcept const path& filesystem_error::path2() const noexcept
{ {
return path2_; return path2_;
} }
//end class filesystem_error //end class filesystem_error
//Because of No wide character version of POSIX
//Because of No wide character version of POSIX
#if defined(NANA_POSIX) #if defined(NANA_POSIX)
const char* separators = "/"; const char* separators = "/";
const char separator = '/'; const char separator = '/';
@ -510,10 +509,10 @@ namespace filesystem
return to_wstring(pathstr_); return to_wstring(pathstr_);
} }
std::string path::u8string() const /*std::string path::u8string() const
{ {
return to_utf8(pathstr_); return to_utf8(pathstr_);
} }*/
std::string path::generic_string() const std::string path::generic_string() const
{ {
auto str = string(); auto str = string();
@ -526,12 +525,12 @@ namespace filesystem
std::replace(str.begin(), str.end(), L'\\', L'/'); std::replace(str.begin(), str.end(), L'\\', L'/');
return str; return str;
} }
std::string path::generic_u8string() const // uppss ... /*std::string path::generic_u8string() const // uppss ...
{ {
auto str = pathstr_; auto str = pathstr_;
std::replace(str.begin(), str.end(), '\\', '/'); // uppss ... revise this !!!!! std::replace(str.begin(), str.end(), '\\', '/'); // uppss ... revise this !!!!!
return to_utf8(str); return to_utf8(str);
} }*/
path path::lexically_normal() const path path::lexically_normal() const
{ {
@ -711,112 +710,112 @@ namespace filesystem
} }
}; };
directory_iterator::directory_iterator() noexcept directory_iterator::directory_iterator() noexcept
: end_(true), : end_(true),
handle_(nullptr) handle_(nullptr)
{} {}
directory_iterator::directory_iterator(const path& file_path) directory_iterator::directory_iterator(const path& file_path)
{ {
_m_prepare(file_path); _m_prepare(file_path);
} }
directory_iterator::directory_iterator(const path& p, directory_options opt): directory_iterator::directory_iterator(const path& p, directory_options opt):
option_(opt) option_(opt)
{ {
_m_prepare(p); _m_prepare(p);
} }
const directory_iterator::value_type& directory_iterator::operator*() const { return value_; } const directory_iterator::value_type& directory_iterator::operator*() const { return value_; }
const directory_iterator::value_type* const directory_iterator::value_type*
directory_iterator::operator->() const { return &(operator*()); } directory_iterator::operator->() const { return &(operator*()); }
directory_iterator& directory_iterator::operator++() directory_iterator& directory_iterator::operator++()
{ {
_m_read(); return *this; _m_read(); return *this;
} }
directory_iterator directory_iterator::operator++(int) directory_iterator directory_iterator::operator++(int)
{ {
directory_iterator tmp = *this; directory_iterator tmp = *this;
_m_read(); _m_read();
return tmp; return tmp;
} }
bool directory_iterator::equal(const directory_iterator& x) const bool directory_iterator::equal(const directory_iterator& x) const
{ {
if (end_ && (end_ == x.end_)) return true; if (end_ && (end_ == x.end_)) return true;
return (value_.path().filename() == x.value_.path().filename()); return (value_.path().filename() == x.value_.path().filename());
} }
void directory_iterator::_m_prepare(const path& file_path) void directory_iterator::_m_prepare(const path& file_path)
{ {
path_ = file_path.native(); path_ = file_path.native();
#if defined(NANA_WINDOWS) #if defined(NANA_WINDOWS)
if (!path_.empty() && (path_.back() != L'/' && path_.back() != L'\\')) if (!path_.empty() && (path_.back() != L'/' && path_.back() != L'\\'))
path_ += L'\\'; path_ += L'\\';
auto pat = path_; auto pat = path_;
DWORD attr = ::GetFileAttributes(pat.data()); DWORD attr = ::GetFileAttributes(pat.data());
if ((attr != INVALID_FILE_ATTRIBUTES) && (attr & FILE_ATTRIBUTE_DIRECTORY)) if ((attr != INVALID_FILE_ATTRIBUTES) && (attr & FILE_ATTRIBUTE_DIRECTORY))
pat += L"*"; pat += L"*";
WIN32_FIND_DATAW wfd; WIN32_FIND_DATAW wfd;
::HANDLE handle = ::FindFirstFile(pat.data(), &wfd); ::HANDLE handle = ::FindFirstFile(pat.data(), &wfd);
if (handle == INVALID_HANDLE_VALUE) if (handle == INVALID_HANDLE_VALUE)
{ {
end_ = true; end_ = true;
return; return;
} }
while (_m_ignore(wfd.cFileName)) while (_m_ignore(wfd.cFileName))
{ {
if (::FindNextFile(handle, &wfd) == 0) if (::FindNextFile(handle, &wfd) == 0)
{ {
end_ = true; end_ = true;
::FindClose(handle); ::FindClose(handle);
return; return;
} }
} }
value_ = value_type(path(path_ + wfd.cFileName)); value_ = value_type(path(path_ + wfd.cFileName));
#elif defined(NANA_POSIX) #elif defined(NANA_POSIX)
if (path_.size() && (path_.back() != '/')) if (path_.size() && (path_.back() != '/'))
path_ += '/'; path_ += '/';
auto handle = opendir(path_.c_str()); auto handle = opendir(path_.c_str());
end_ = true; end_ = true;
if (handle) if (handle)
{ {
struct dirent * dnt = readdir(handle); struct dirent * dnt = readdir(handle);
if (dnt) if (dnt)
{ {
while (_m_ignore(dnt->d_name)) while (_m_ignore(dnt->d_name))
{ {
dnt = readdir(handle); dnt = readdir(handle);
if (dnt == 0) if (dnt == 0)
{ {
closedir(handle); closedir(handle);
return; return;
} }
} }
value_ = value_type(path_ + dnt->d_name); value_ = value_type(path_ + dnt->d_name);
end_ = false; end_ = false;
} }
} }
#endif #endif
if (false == end_) if (false == end_)
{ {
find_ptr_ = std::shared_ptr<find_handle>(new find_handle(handle), inner_handle_deleter()); find_ptr_ = std::shared_ptr<find_handle>(new find_handle(handle), inner_handle_deleter());
handle_ = handle; handle_ = handle;
} }
} }
void directory_iterator::_m_read() void directory_iterator::_m_read()
{ {
if (handle_) if (handle_)
{ {
@ -976,7 +975,6 @@ namespace filesystem
#endif #endif
}//end namespace detail }//end namespace detail
file_status status(const path& p) file_status status(const path& p)
{ {
std::error_code err; std::error_code err;
@ -1106,93 +1104,290 @@ namespace filesystem
return dateTime; return dateTime;
} }
bool create_directory(const path& p) bool create_directory(const path& p)
{ {
#if defined(NANA_WINDOWS) #if defined(NANA_WINDOWS)
return (FALSE != ::CreateDirectoryW(p.c_str(), 0)); return (FALSE != ::CreateDirectoryW(p.c_str(), 0));
#elif defined(NANA_POSIX) #elif defined(NANA_POSIX)
return (0 == ::mkdir(p.c_str(), static_cast<int>(perms::all))); return (0 == ::mkdir(p.c_str(), static_cast<int>(perms::all)));
#endif #endif
} }
bool remove(const path& p) bool remove(const path& p)
{ {
auto stat = status(p); auto stat = status(p);
if (stat.type() == file_type::directory) if (stat.type() == file_type::directory)
return detail::rm_dir(p); return detail::rm_dir(p);
return detail::rm_file(p); return detail::rm_file(p);
} }
bool remove(const path& p, std::error_code & ec) bool remove(const path& p, std::error_code & ec)
{ {
ec.clear(); ec.clear();
auto stat = status(p); auto stat = status(p);
if (stat.type() == file_type::directory) if (stat.type() == file_type::directory)
return detail::rm_dir(p); return detail::rm_dir(p);
return detail::rm_file(p); return detail::rm_file(p);
} }
path current_path() path current_path()
{ {
#if defined(NANA_WINDOWS) #if defined(NANA_WINDOWS)
wchar_t buf[MAX_PATH]; wchar_t buf[MAX_PATH];
DWORD len = ::GetCurrentDirectoryW(MAX_PATH, buf); DWORD len = ::GetCurrentDirectoryW(MAX_PATH, buf);
if (len) if (len)
{ {
if (len > MAX_PATH) if (len > MAX_PATH)
{ {
wchar_t * p = new wchar_t[len + 1]; wchar_t * p = new wchar_t[len + 1];
::GetCurrentDirectoryW(len + 1, p); ::GetCurrentDirectoryW(len + 1, p);
std::wstring s = p; std::wstring s = p;
delete[] p; delete[] p;
return s; return s;
} }
return buf; return buf;
} }
#elif defined(NANA_POSIX) #elif defined(NANA_POSIX)
char buf[260]; char buf[260];
auto pstr = ::getcwd(buf, 260); auto pstr = ::getcwd(buf, 260);
if (pstr) if (pstr)
return pstr; return pstr;
int bytes = 260 + 260; int bytes = 260 + 260;
while (ERANGE == errno) while (ERANGE == errno)
{ {
std::unique_ptr<char[]> buf(new char[bytes]); std::unique_ptr<char[]> buf(new char[bytes]);
auto pstr = ::getcwd(buf.get(), bytes); auto pstr = ::getcwd(buf.get(), bytes);
if (pstr) if (pstr)
return path(pstr); return path(pstr);
bytes += 260; bytes += 260;
} }
#endif #endif
return path(); return path();
} }
void current_path(const path& p) void current_path(const path& p)
{ {
#if defined(NANA_WINDOWS) #if defined(NANA_WINDOWS)
::SetCurrentDirectoryW(p.c_str()); ::SetCurrentDirectoryW(p.c_str());
#elif defined(NANA_POSIX) #elif defined(NANA_POSIX)
::chdir(p.c_str()); ::chdir(p.c_str());
#endif #endif
} }
#ifndef CXX_NO_INLINE_NAMESPACE path absolute(const path& p)
} //end namespace v1 {
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 #endif
}//end namespace filesystem return base_root_name / p;
} //end namespace experimental }
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 }//end namespace nana
#else
namespace std namespace std
{ {
namespace filesystem namespace filesystem
{ {
#if defined(NANA_FILESYSTEM_FORCE) || \ #if defined(_MSC_VER) && ((!defined(_MSVC_LANG)) || (_MSVC_LANG < 201703))
(defined(_MSC_VER) && ((!defined(_MSVC_LANG)) || (_MSVC_LANG < 201703)))
path absolute(const path& p) path absolute(const path& p)
{ {
if (p.empty()) if (p.empty())
@ -1377,8 +1572,8 @@ namespace std
return weakly_canonical(p, &err); return weakly_canonical(p, &err);
} }
#endif #endif
/*
#if defined(NANA_FILESYSTEM_FORCE) || defined(NANA_MINGW) #if defined(NANA_MINGW)
bool exists( std::filesystem::file_status s ) noexcept bool exists( std::filesystem::file_status s ) noexcept
{ {
return s.type() != file_type::not_found; return s.type() != file_type::not_found;
@ -1393,17 +1588,10 @@ namespace std
{ {
return exists(status(p, ec)); return exists(status(p, ec));
} }
#endif */
}//end namespace filesystem }//end namespace filesystem
}//end namespace std }//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)) || \ #if (defined(NANA_USING_STD_EXPERIMENTAL_FILESYSTEM) && defined(_MSC_VER) && (_MSC_VER > 1912)) || \
(!defined(__clang__) && defined(__GNUC__) && (__cplusplus < 201603 || (__GNUC__* 100 + __GNUC_MINOR__ < 801))) (!defined(__clang__) && defined(__GNUC__) && (__cplusplus < 201603 || (__GNUC__* 100 + __GNUC_MINOR__ < 801)))

6
source/gui/filebox.cpp
View File

@ -1522,7 +1522,7 @@ namespace nana
if (!*str) if (!*str)
{ {
targets.emplace_back(parent_path); targets.emplace_back(parent_path);
impl_->path = parent_path.parent_path().u8string(); impl_->path = parent_path.parent_path().string();
} }
else else
{ {
@ -1532,7 +1532,7 @@ namespace nana
targets.emplace_back(parent_path / path_type{str}); targets.emplace_back(parent_path / path_type{str});
str += (len + 1); str += (len + 1);
} }
impl_->path = parent_path.u8string(); impl_->path = parent_path.string();
} }
} }
else else
@ -1540,7 +1540,7 @@ namespace nana
wfile.resize(std::wcslen(wfile.data())); wfile.resize(std::wcslen(wfile.data()));
targets.emplace_back(wfile); targets.emplace_back(wfile);
impl_->path = targets.front().parent_path().u8string(); impl_->path = targets.front().parent_path().string();
} }
#elif defined(NANA_POSIX) #elif defined(NANA_POSIX)

2
source/gui/msgbox.cpp
View File

@ -1267,7 +1267,7 @@ namespace nana
auto files = impl->fbox.show(); auto files = impl->fbox.show();
if(!files.empty()) if(!files.empty())
{ {
impl->value = files.front().u8string(); impl->value = files.front().string();
impl->path_edit.caption(impl->value); impl->path_edit.caption(impl->value);
} }
}); });