home/src/file.hh
Frank LENORMAND e1bd076f5e src: Reload buffers when their contents' hash changes
Instead of triggering a reload event when the timestamp of a buffer's
underlying file changes, do so when its contents are actually modified.
2019-12-03 17:05:24 +01:00

126 lines
2.9 KiB
C++

#ifndef file_hh_INCLUDED
#define file_hh_INCLUDED
#include "array_view.hh"
#include "enum.hh"
#include "meta.hh"
#include "string.hh"
#include "units.hh"
#include "vector.hh"
#include <sys/types.h>
#include <sys/stat.h>
namespace Kakoune
{
class Buffer;
class String;
class Regex;
using CandidateList = Vector<String, MemoryDomain::Completion>;
// parse ~/ and %/ in filename and returns the translated filename
String parse_filename(StringView filename, StringView buf_dir = {});
String real_path(StringView filename);
String compact_path(StringView filename);
StringView tmpdir();
StringView homedir();
// returns pair { directory, filename }
std::pair<StringView, StringView> split_path(StringView path);
String get_kak_binary_path();
bool fd_readable(int fd);
bool fd_writable(int fd);
String read_fd(int fd, bool text = false);
String read_file(StringView filename, bool text = false);
void write(int fd, StringView data);
void write_to_file(StringView filename, StringView data);
struct MappedFile
{
MappedFile(StringView filename);
~MappedFile();
operator StringView() const;
int fd;
const char* data;
struct stat st {};
};
enum class WriteMethod
{
Overwrite,
Replace
};
constexpr auto enum_desc(Meta::Type<WriteMethod>)
{
return make_array<EnumDesc<WriteMethod>>({
{ WriteMethod::Overwrite, "overwrite" },
{ WriteMethod::Replace, "replace" },
});
}
enum class WriteFlags
{
None = 0,
Force = 0b01,
Sync = 0b10
};
constexpr bool with_bit_ops(Meta::Type<WriteFlags>) { return true; }
void write_buffer_to_file(Buffer& buffer, StringView filename,
WriteMethod method, WriteFlags flags);
void write_buffer_to_fd(Buffer& buffer, int fd);
void write_buffer_to_backup_file(Buffer& buffer);
String find_file(StringView filename, StringView buf_dir, ConstArrayView<String> paths);
bool file_exists(StringView filename);
Vector<String> list_files(StringView directory);
void make_directory(StringView dir, mode_t mode);
struct FsStatus
{
timespec timestamp;
ByteCount file_size;
size_t hash;
};
timespec get_fs_timestamp(StringView filename);
FsStatus get_fs_status(StringView filename);
constexpr bool operator==(const timespec& lhs, const timespec& rhs)
{
return lhs.tv_sec == rhs.tv_sec and lhs.tv_nsec == rhs.tv_nsec;
}
constexpr bool operator!=(const timespec& lhs, const timespec& rhs)
{
return not (lhs == rhs);
}
enum class FilenameFlags
{
None = 0,
OnlyDirectories = 1 << 0,
Expand = 1 << 1
};
constexpr bool with_bit_ops(Meta::Type<FilenameFlags>) { return true; }
CandidateList complete_filename(StringView prefix, const Regex& ignore_regex,
ByteCount cursor_pos = -1,
FilenameFlags flags = FilenameFlags::None);
CandidateList complete_command(StringView prefix, ByteCount cursor_pos = -1);
}
#endif // file_hh_INCLUDED