git/compat/win32/path-utils.h
Johannes Schindelin 193eda7507 win32: override fspathcmp() with a directory separator-aware version
On Windows, the backslash is the directory separator, even if the
forward slash can be used, too, at least since Windows NT.

This means that the paths `a/b` and `a\b` are equivalent, and
`fspathcmp()` needs to be made aware of that fact.

Note that we have to override both `fspathcmp()` and `fspathncmp()`, and
the former cannot be a mere pre-processor constant that transforms calls
to `fspathcmp(a, b)` into `fspathncmp(a, b, (size_t)-1)` because the
function `report_collided_checkout()` in `unpack-trees.c` wants to
assign `list.cmp = fspathcmp`.

Also note that `fspatheq()` does _not_ need to be overridden because it
calls `fspathcmp()` internally.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-07-13 16:23:36 -07:00

38 lines
1.2 KiB
C

#ifndef WIN32_PATH_UTILS_H
#define WIN32_PATH_UTILS_H
int win32_has_dos_drive_prefix(const char *path);
#define has_dos_drive_prefix win32_has_dos_drive_prefix
int win32_skip_dos_drive_prefix(char **path);
#define skip_dos_drive_prefix win32_skip_dos_drive_prefix
#define is_dir_sep is_xplatform_dir_sep
static inline char *win32_find_last_dir_sep(const char *path)
{
char *ret = NULL;
for (; *path; ++path)
if (is_dir_sep(*path))
ret = (char *)path;
return ret;
}
#define find_last_dir_sep win32_find_last_dir_sep
static inline int win32_has_dir_sep(const char *path)
{
/*
* See how long the non-separator part of the given path is, and
* if and only if it covers the whole path (i.e. path[len] is NUL),
* there is no separator in the path---otherwise there is a separator.
*/
size_t len = strcspn(path, "/\\");
return !!path[len];
}
#define has_dir_sep(path) win32_has_dir_sep(path)
int win32_offset_1st_component(const char *path);
#define offset_1st_component win32_offset_1st_component
int win32_fspathcmp(const char *a, const char *b);
#define fspathcmp win32_fspathcmp
int win32_fspathncmp(const char *a, const char *b, size_t count);
#define fspathncmp win32_fspathncmp
#endif