| #ifndef DIR_H |
| #define DIR_H |
| |
| #include "cache.h" |
| #include "hashmap.h" |
| #include "strbuf.h" |
| |
| /** |
| * The directory listing API is used to enumerate paths in the work tree, |
| * optionally taking `.git/info/exclude` and `.gitignore` files per directory |
| * into account. |
| */ |
| |
| /** |
| * Calling sequence |
| * ---------------- |
| * |
| * Note: The index may be checked for .gitignore files that are |
| * CE_SKIP_WORKTREE marked. If you want to exclude files, make sure you have |
| * loaded the index first. |
| * |
| * - Prepare `struct dir_struct dir` using `dir_init()` function. |
| * |
| * - To add single exclude pattern, call `add_pattern_list()` and then |
| * `add_pattern()`. |
| * |
| * - To add patterns from a file (e.g. `.git/info/exclude`), call |
| * `add_patterns_from_file()` , and/or set `dir.exclude_per_dir`. |
| * |
| * - A short-hand function `setup_standard_excludes()` can be used to set |
| * up the standard set of exclude settings, instead of manually calling |
| * the add_pattern*() family of functions. |
| * |
| * - Call `fill_directory()`. |
| * |
| * - Use `dir.entries[]` and `dir.ignored[]`. |
| * |
| * - Call `dir_clear()` when the contained elements are no longer in use. |
| * |
| */ |
| |
| struct dir_entry { |
| unsigned int len; |
| char name[FLEX_ARRAY]; /* more */ |
| }; |
| |
| #define PATTERN_FLAG_NODIR 1 |
| #define PATTERN_FLAG_ENDSWITH 4 |
| #define PATTERN_FLAG_MUSTBEDIR 8 |
| #define PATTERN_FLAG_NEGATIVE 16 |
| |
| struct path_pattern { |
| /* |
| * This allows callers of last_matching_pattern() etc. |
| * to determine the origin of the matching pattern. |
| */ |
| struct pattern_list *pl; |
| |
| const char *pattern; |
| int patternlen; |
| int nowildcardlen; |
| const char *base; |
| int baselen; |
| unsigned flags; /* PATTERN_FLAG_* */ |
| |
| /* |
| * Counting starts from 1 for line numbers in ignore files, |
| * and from -1 decrementing for patterns from CLI args. |
| */ |
| int srcpos; |
| }; |
| |
| /* used for hashmaps for cone patterns */ |
| struct pattern_entry { |
| struct hashmap_entry ent; |
| char *pattern; |
| size_t patternlen; |
| }; |
| |
| /* |
| * Each excludes file will be parsed into a fresh exclude_list which |
| * is appended to the relevant exclude_list_group (either EXC_DIRS or |
| * EXC_FILE). An exclude_list within the EXC_CMDL exclude_list_group |
| * can also be used to represent the list of --exclude values passed |
| * via CLI args. |
| */ |
| struct pattern_list { |
| int nr; |
| int alloc; |
| |
| /* remember pointer to exclude file contents so we can free() */ |
| char *filebuf; |
| |
| /* origin of list, e.g. path to filename, or descriptive string */ |
| const char *src; |
| |
| struct path_pattern **patterns; |
| |
| /* |
| * While scanning the excludes, we attempt to match the patterns |
| * with a more restricted set that allows us to use hashsets for |
| * matching logic, which is faster than the linear lookup in the |
| * excludes array above. If non-zero, that check succeeded. |
| */ |
| unsigned use_cone_patterns; |
| unsigned full_cone; |
| |
| /* |
| * Stores paths where everything starting with those paths |
| * is included. |
| */ |
| struct hashmap recursive_hashmap; |
| |
| /* |
| * Used to check single-level parents of blobs. |
| */ |
| struct hashmap parent_hashmap; |
| }; |
| |
| /* |
| * The contents of the per-directory exclude files are lazily read on |
| * demand and then cached in memory, one per exclude_stack struct, in |
| * order to avoid opening and parsing each one every time that |
| * directory is traversed. |
| */ |
| struct exclude_stack { |
| struct exclude_stack *prev; /* the struct exclude_stack for the parent directory */ |
| int baselen; |
| int exclude_ix; /* index of exclude_list within EXC_DIRS exclude_list_group */ |
| struct untracked_cache_dir *ucd; |
| }; |
| |
| struct exclude_list_group { |
| int nr, alloc; |
| struct pattern_list *pl; |
| }; |
| |
| struct oid_stat { |
| struct stat_data stat; |
| struct object_id oid; |
| int valid; |
| }; |
| |
| /* |
| * Untracked cache |
| * |
| * The following inputs are sufficient to determine what files in a |
| * directory are excluded: |
| * |
| * - The list of files and directories of the directory in question |
| * - The $GIT_DIR/index |
| * - dir_struct flags |
| * - The content of $GIT_DIR/info/exclude |
| * - The content of core.excludesfile |
| * - The content (or the lack) of .gitignore of all parent directories |
| * from $GIT_WORK_TREE |
| * - The check_only flag in read_directory_recursive (for |
| * DIR_HIDE_EMPTY_DIRECTORIES) |
| * |
| * The first input can be checked using directory mtime. In many |
| * filesystems, directory mtime (stat_data field) is updated when its |
| * files or direct subdirs are added or removed. |
| * |
| * The second one can be hooked from cache_tree_invalidate_path(). |
| * Whenever a file (or a submodule) is added or removed from a |
| * directory, we invalidate that directory. |
| * |
| * The remaining inputs are easy, their SHA-1 could be used to verify |
| * their contents (exclude_sha1[], info_exclude_sha1[] and |
| * excludes_file_sha1[]) |
| */ |
| struct untracked_cache_dir { |
| struct untracked_cache_dir **dirs; |
| char **untracked; |
| struct stat_data stat_data; |
| unsigned int untracked_alloc, dirs_nr, dirs_alloc; |
| unsigned int untracked_nr; |
| unsigned int check_only : 1; |
| /* all data except 'dirs' in this struct are good */ |
| unsigned int valid : 1; |
| unsigned int recurse : 1; |
| /* null object ID means this directory does not have .gitignore */ |
| struct object_id exclude_oid; |
| char name[FLEX_ARRAY]; |
| }; |
| |
| struct untracked_cache { |
| struct oid_stat ss_info_exclude; |
| struct oid_stat ss_excludes_file; |
| const char *exclude_per_dir; |
| struct strbuf ident; |
| /* |
| * dir_struct#flags must match dir_flags or the untracked |
| * cache is ignored. |
| */ |
| unsigned dir_flags; |
| struct untracked_cache_dir *root; |
| /* Statistics */ |
| int dir_created; |
| int gitignore_invalidated; |
| int dir_invalidated; |
| int dir_opened; |
| /* fsmonitor invalidation data */ |
| unsigned int use_fsmonitor : 1; |
| }; |
| |
| /** |
| * structure is used to pass directory traversal options to the library and to |
| * record the paths discovered. A single `struct dir_struct` is used regardless |
| * of whether or not the traversal recursively descends into subdirectories. |
| */ |
| struct dir_struct { |
| |
| /* The number of members in `entries[]` array. */ |
| int nr; |
| |
| /* Internal use; keeps track of allocation of `entries[]` array.*/ |
| int alloc; |
| |
| /* The number of members in `ignored[]` array. */ |
| int ignored_nr; |
| |
| int ignored_alloc; |
| |
| /* bit-field of options */ |
| enum { |
| |
| /** |
| * Return just ignored files in `entries[]`, not untracked files. |
| * This flag is mutually exclusive with `DIR_SHOW_IGNORED_TOO`. |
| */ |
| DIR_SHOW_IGNORED = 1<<0, |
| |
| /* Include a directory that is not tracked. */ |
| DIR_SHOW_OTHER_DIRECTORIES = 1<<1, |
| |
| /* Do not include a directory that is not tracked and is empty. */ |
| DIR_HIDE_EMPTY_DIRECTORIES = 1<<2, |
| |
| /** |
| * If set, recurse into a directory that looks like a Git directory. |
| * Otherwise it is shown as a directory. |
| */ |
| DIR_NO_GITLINKS = 1<<3, |
| |
| /** |
| * Special mode for git-add. Return ignored files in `ignored[]` and |
| * untracked files in `entries[]`. Only returns ignored files that match |
| * pathspec exactly (no wildcards). Does not recurse into ignored |
| * directories. |
| */ |
| DIR_COLLECT_IGNORED = 1<<4, |
| |
| /** |
| * Similar to `DIR_SHOW_IGNORED`, but return ignored files in |
| * `ignored[]` in addition to untracked files in `entries[]`. |
| * This flag is mutually exclusive with `DIR_SHOW_IGNORED`. |
| */ |
| DIR_SHOW_IGNORED_TOO = 1<<5, |
| |
| DIR_COLLECT_KILLED_ONLY = 1<<6, |
| |
| /** |
| * Only has meaning if `DIR_SHOW_IGNORED_TOO` is also set; if this is |
| * set, the untracked contents of untracked directories are also |
| * returned in `entries[]`. |
| */ |
| DIR_KEEP_UNTRACKED_CONTENTS = 1<<7, |
| |
| /** |
| * Only has meaning if `DIR_SHOW_IGNORED_TOO` is also set; if this is |
| * set, returns ignored files and directories that match an exclude |
| * pattern. If a directory matches an exclude pattern, then the |
| * directory is returned and the contained paths are not. A directory |
| * that does not match an exclude pattern will not be returned even if |
| * all of its contents are ignored. In this case, the contents are |
| * returned as individual entries. |
| * |
| * If this is set, files and directories that explicitly match an ignore |
| * pattern are reported. Implicitly ignored directories (directories that |
| * do not match an ignore pattern, but whose contents are all ignored) |
| * are not reported, instead all of the contents are reported. |
| */ |
| DIR_SHOW_IGNORED_TOO_MODE_MATCHING = 1<<8, |
| |
| DIR_SKIP_NESTED_GIT = 1<<9 |
| } flags; |
| |
| /* An array of `struct dir_entry`, each element of which describes a path. */ |
| struct dir_entry **entries; |
| |
| /** |
| * used for ignored paths with the `DIR_SHOW_IGNORED_TOO` and |
| * `DIR_COLLECT_IGNORED` flags. |
| */ |
| struct dir_entry **ignored; |
| |
| /** |
| * The name of the file to be read in each directory for excluded files |
| * (typically `.gitignore`). |
| */ |
| const char *exclude_per_dir; |
| |
| /* |
| * We maintain three groups of exclude pattern lists: |
| * |
| * EXC_CMDL lists patterns explicitly given on the command line. |
| * EXC_DIRS lists patterns obtained from per-directory ignore files. |
| * EXC_FILE lists patterns from fallback ignore files, e.g. |
| * - .git/info/exclude |
| * - core.excludesfile |
| * |
| * Each group contains multiple exclude lists, a single list |
| * per source. |
| */ |
| #define EXC_CMDL 0 |
| #define EXC_DIRS 1 |
| #define EXC_FILE 2 |
| struct exclude_list_group exclude_list_group[3]; |
| |
| /* |
| * Temporary variables which are used during loading of the |
| * per-directory exclude lists. |
| * |
| * exclude_stack points to the top of the exclude_stack, and |
| * basebuf contains the full path to the current |
| * (sub)directory in the traversal. Exclude points to the |
| * matching exclude struct if the directory is excluded. |
| */ |
| struct exclude_stack *exclude_stack; |
| struct path_pattern *pattern; |
| struct strbuf basebuf; |
| |
| /* Enable untracked file cache if set */ |
| struct untracked_cache *untracked; |
| struct oid_stat ss_info_exclude; |
| struct oid_stat ss_excludes_file; |
| unsigned unmanaged_exclude_files; |
| }; |
| |
| /*Count the number of slashes for string s*/ |
| int count_slashes(const char *s); |
| |
| /* |
| * The ordering of these constants is significant, with |
| * higher-numbered match types signifying "closer" (i.e. more |
| * specific) matches which will override lower-numbered match types |
| * when populating the seen[] array. |
| */ |
| #define MATCHED_RECURSIVELY 1 |
| #define MATCHED_RECURSIVELY_LEADING_PATHSPEC 2 |
| #define MATCHED_FNMATCH 3 |
| #define MATCHED_EXACTLY 4 |
| int simple_length(const char *match); |
| int no_wildcard(const char *string); |
| char *common_prefix(const struct pathspec *pathspec); |
| int match_pathspec(const struct index_state *istate, |
| const struct pathspec *pathspec, |
| const char *name, int namelen, |
| int prefix, char *seen, int is_dir); |
| int report_path_error(const char *ps_matched, const struct pathspec *pathspec); |
| int within_depth(const char *name, int namelen, int depth, int max_depth); |
| |
| void dir_init(struct dir_struct *dir); |
| |
| int fill_directory(struct dir_struct *dir, |
| struct index_state *istate, |
| const struct pathspec *pathspec); |
| int read_directory(struct dir_struct *, struct index_state *istate, |
| const char *path, int len, |
| const struct pathspec *pathspec); |
| |
| enum pattern_match_result { |
| UNDECIDED = -1, |
| NOT_MATCHED = 0, |
| MATCHED = 1, |
| MATCHED_RECURSIVE = 2, |
| }; |
| |
| /* |
| * Scan the list of patterns to determine if the ordered list |
| * of patterns matches on 'pathname'. |
| * |
| * Return 1 for a match, 0 for not matched and -1 for undecided. |
| */ |
| enum pattern_match_result path_matches_pattern_list(const char *pathname, |
| int pathlen, |
| const char *basename, int *dtype, |
| struct pattern_list *pl, |
| struct index_state *istate); |
| struct dir_entry *dir_add_ignored(struct dir_struct *dir, |
| struct index_state *istate, |
| const char *pathname, int len); |
| |
| /* |
| * these implement the matching logic for dir.c:excluded_from_list and |
| * attr.c:path_matches() |
| */ |
| int match_basename(const char *, int, |
| const char *, int, int, unsigned); |
| int match_pathname(const char *, int, |
| const char *, int, |
| const char *, int, int, unsigned); |
| |
| struct path_pattern *last_matching_pattern(struct dir_struct *dir, |
| struct index_state *istate, |
| const char *name, int *dtype); |
| |
| int is_excluded(struct dir_struct *dir, |
| struct index_state *istate, |
| const char *name, int *dtype); |
| |
| int pl_hashmap_cmp(const void *unused_cmp_data, |
| const struct hashmap_entry *a, |
| const struct hashmap_entry *b, |
| const void *key); |
| int hashmap_contains_parent(struct hashmap *map, |
| const char *path, |
| struct strbuf *buffer); |
| struct pattern_list *add_pattern_list(struct dir_struct *dir, |
| int group_type, const char *src); |
| int add_patterns_from_file_to_list(const char *fname, const char *base, int baselen, |
| struct pattern_list *pl, struct index_state *istate, |
| unsigned flags); |
| void add_patterns_from_file(struct dir_struct *, const char *fname); |
| int add_patterns_from_blob_to_list(struct object_id *oid, |
| const char *base, int baselen, |
| struct pattern_list *pl); |
| void parse_path_pattern(const char **string, int *patternlen, unsigned *flags, int *nowildcardlen); |
| void add_pattern(const char *string, const char *base, |
| int baselen, struct pattern_list *pl, int srcpos); |
| void clear_pattern_list(struct pattern_list *pl); |
| void dir_clear(struct dir_struct *dir); |
| |
| int repo_file_exists(struct repository *repo, const char *path); |
| int file_exists(const char *); |
| |
| int is_inside_dir(const char *dir); |
| int dir_inside_of(const char *subdir, const char *dir); |
| |
| static inline int is_dot_or_dotdot(const char *name) |
| { |
| return (name[0] == '.' && |
| (name[1] == '\0' || |
| (name[1] == '.' && name[2] == '\0'))); |
| } |
| |
| int is_empty_dir(const char *dir); |
| |
| void setup_standard_excludes(struct dir_struct *dir); |
| |
| char *get_sparse_checkout_filename(void); |
| int get_sparse_checkout_patterns(struct pattern_list *pl); |
| |
| /* Constants for remove_dir_recursively: */ |
| |
| /* |
| * If a non-directory is found within path, stop and return an error. |
| * (In this case some empty directories might already have been |
| * removed.) |
| */ |
| #define REMOVE_DIR_EMPTY_ONLY 01 |
| |
| /* |
| * If any Git work trees are found within path, skip them without |
| * considering it an error. |
| */ |
| #define REMOVE_DIR_KEEP_NESTED_GIT 02 |
| |
| /* Remove the contents of path, but leave path itself. */ |
| #define REMOVE_DIR_KEEP_TOPLEVEL 04 |
| |
| /* |
| * Remove path and its contents, recursively. flags is a combination |
| * of the above REMOVE_DIR_* constants. Return 0 on success. |
| * |
| * This function uses path as temporary scratch space, but restores it |
| * before returning. |
| */ |
| int remove_dir_recursively(struct strbuf *path, int flag); |
| |
| /* tries to remove the path with empty directories along it, ignores ENOENT */ |
| int remove_path(const char *path); |
| |
| int fspathcmp(const char *a, const char *b); |
| int fspathncmp(const char *a, const char *b, size_t count); |
| |
| /* |
| * The prefix part of pattern must not contains wildcards. |
| */ |
| struct pathspec_item; |
| int git_fnmatch(const struct pathspec_item *item, |
| const char *pattern, const char *string, |
| int prefix); |
| |
| int submodule_path_match(const struct index_state *istate, |
| const struct pathspec *ps, |
| const char *submodule_name, |
| char *seen); |
| |
| static inline int ce_path_match(const struct index_state *istate, |
| const struct cache_entry *ce, |
| const struct pathspec *pathspec, |
| char *seen) |
| { |
| return match_pathspec(istate, pathspec, ce->name, ce_namelen(ce), 0, seen, |
| S_ISDIR(ce->ce_mode) || S_ISGITLINK(ce->ce_mode)); |
| } |
| |
| static inline int dir_path_match(const struct index_state *istate, |
| const struct dir_entry *ent, |
| const struct pathspec *pathspec, |
| int prefix, char *seen) |
| { |
| int has_trailing_dir = ent->len && ent->name[ent->len - 1] == '/'; |
| int len = has_trailing_dir ? ent->len - 1 : ent->len; |
| return match_pathspec(istate, pathspec, ent->name, len, prefix, seen, |
| has_trailing_dir); |
| } |
| |
| int cmp_dir_entry(const void *p1, const void *p2); |
| int check_dir_entry_contains(const struct dir_entry *out, const struct dir_entry *in); |
| |
| void untracked_cache_invalidate_path(struct index_state *, const char *, int safe_path); |
| void untracked_cache_remove_from_index(struct index_state *, const char *); |
| void untracked_cache_add_to_index(struct index_state *, const char *); |
| |
| void free_untracked_cache(struct untracked_cache *); |
| struct untracked_cache *read_untracked_extension(const void *data, unsigned long sz); |
| void write_untracked_extension(struct strbuf *out, struct untracked_cache *untracked); |
| void add_untracked_cache(struct index_state *istate); |
| void remove_untracked_cache(struct index_state *istate); |
| |
| /* |
| * Connect a worktree to a git directory by creating (or overwriting) a |
| * '.git' file containing the location of the git directory. In the git |
| * directory set the core.worktree setting to indicate where the worktree is. |
| * When `recurse_into_nested` is set, recurse into any nested submodules, |
| * connecting them as well. |
| */ |
| void connect_work_tree_and_git_dir(const char *work_tree, |
| const char *git_dir, |
| int recurse_into_nested); |
| void relocate_gitdir(const char *path, |
| const char *old_git_dir, |
| const char *new_git_dir); |
| #endif |