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/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#ifndef INCLUDE_win32_w32_common_h__
#define INCLUDE_win32_w32_common_h__
#include <git2/common.h>
/*
* 4096 is the max allowed Git path. `MAX_PATH` (260) is the typical max allowed
* Windows path length, however win32 Unicode APIs generally allow up to 32,767
* if prefixed with "\\?\" (i.e. converted to an NT-style name).
*/
#define GIT_WIN_PATH_MAX GIT_PATH_MAX
/*
* Provides a large enough buffer to support Windows Git paths:
* GIT_WIN_PATH_MAX is 4096, corresponding to a maximum path length of 4095
* characters plus a NULL terminator. Prefixing with "\\?\" adds 4 characters,
* but if the original was a UNC path, then we turn "\\server\share" into
* "\\?\UNC\server\share". So we replace the first two characters with
* 8 characters, a net gain of 6, so the maximum length is GIT_WIN_PATH_MAX+6.
*/
#define GIT_WIN_PATH_UTF16 GIT_WIN_PATH_MAX+6
/* Maximum size of a UTF-8 Win32 Git path. We remove the "\\?\" or "\\?\UNC\"
* prefixes for presentation, bringing us back to 4095 (non-NULL)
* characters. UTF-8 does have 4-byte sequences, but they are encoded in
* UTF-16 using surrogate pairs, which takes up the space of two characters.
* Two characters in the range U+0800 -> U+FFFF take up more space in UTF-8
* (6 bytes) than one surrogate pair (4 bytes).
*/
#define GIT_WIN_PATH_UTF8 ((GIT_WIN_PATH_MAX - 1) * 3 + 1)
/*
* The length of a Windows "shortname", for 8.3 compatibility.
*/
#define GIT_WIN_PATH_SHORTNAME 13
/* Win32 path types */
typedef wchar_t git_win32_path[GIT_WIN_PATH_UTF16];
typedef char git_win32_utf8_path[GIT_WIN_PATH_UTF8];
#endif
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