microsoft
/
git
зеркало из https://github.com/microsoft/git.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность
git/virtualfilesystem.h

33 строки
904 B
C
Исходник Обычный вид История

Add virtual file system settings and hook proc On index load, clear/set the skip worktree bits based on the virtual file system data. Use virtual file system data to update skip-worktree bit in unpack-trees. Use virtual file system data to exclude files and folders not explicitly requested. Update 2022-04-05: disable the "present-despite-SKIP_WORKTREE" file removal behavior when 'core.virtualfilesystem' is enabled. Signed-off-by: Ben Peart <benpeart@microsoft.com>
2018-01-12 00:25:08 +03:00
#ifndef VIRTUALFILESYSTEM_H
#define VIRTUALFILESYSTEM_H
/*
* Update the CE_SKIP_WORKTREE bits based on the virtual file system.
*/
void apply_virtualfilesystem(struct index_state *istate);
unpack-trees:virtualfilesystem: Improve efficiency of clear_ce_flags When the virtualfilesystem is enabled the previous implementation of clear_ce_flags would iterate all of the cache entries and query whether each one is in the virtual filesystem to determine whether to clear one of the SKIP_WORKTREE bits. For each cache entry, we would do a hash lookup for each parent directory in the is_included_in_virtualfilesystem function. The former approach is slow for a typical Windows OS enlistment with 3 million files where only a small percentage is in the virtual filesystem. The cost is O(n_index_entries * n_chars_per_path * n_parent_directories_per_path). In this change, we use the same approach as apply_virtualfilesystem, which iterates the set of entries in the virtualfilesystem and searches in the cache for the corresponding entries in order to clear their flags. This approach has a cost of O(n_virtual_filesystem_entries * n_chars_per_path * log(n_index_entries)). The apply_virtualfilesystem code was refactored a bit and modified to clear flags for all names that 'alias' a given virtual filesystem name when ignore_case is set. n_virtual_filesystem_entries is typically much less than n_index_entries, in which case the new approach is much faster. We wind up building the name hash for the index, but this occurs quickly thanks to the multi-threading. Signed-off-by: Neeraj Singh <neerajsi@ntdev.microsoft.com>
2021-02-06 05:28:33 +03:00
/*
* Clear the specified flags for all entries in the virtual file system
* that match the specified select mask. Returns the number of entries
* processed.
*/
int clear_ce_flags_virtualfilesystem(struct index_state *istate, int select_mask, int clear_mask);
Add virtual file system settings and hook proc On index load, clear/set the skip worktree bits based on the virtual file system data. Use virtual file system data to update skip-worktree bit in unpack-trees. Use virtual file system data to exclude files and folders not explicitly requested. Update 2022-04-05: disable the "present-despite-SKIP_WORKTREE" file removal behavior when 'core.virtualfilesystem' is enabled. Signed-off-by: Ben Peart <benpeart@microsoft.com>
2018-01-12 00:25:08 +03:00
/*
* Return 1 if the requested item is found in the virtual file system,
* 0 for not found and -1 for undecided.
*/
int is_included_in_virtualfilesystem(const char *pathname, int pathlen);
/*
* Return 1 for exclude, 0 for include and -1 for undecided.
*/
int is_excluded_from_virtualfilesystem(const char *pathname, int pathlen, int dtype);
/*
* Free the virtual file system data structures.
*/
void free_virtualfilesystem(void);
#endif