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git/dir.h
Lars Knoll 68492fc73b Speedup scanning for excluded files.
Try to avoid a lot of work scanning for excluded files,
by caching some more information when setting up the exclusion
data structure.

Speeds up 'git runstatus' on a repository containing the Qt sources by 30% and
reduces the amount of instructions executed (as measured by valgrind) by a
factor of 2.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-10-29 17:03:11 -07:00

77 lines
2.1 KiB
C

#ifndef DIR_H
#define DIR_H
/*
* We maintain three 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.
*/
#define EXC_CMDL 0
#define EXC_DIRS 1
#define EXC_FILE 2
struct dir_entry {
unsigned int len;
char name[FLEX_ARRAY]; /* more */
};
#define EXC_FLAG_NODIR 1
#define EXC_FLAG_NOWILDCARD 2
#define EXC_FLAG_ENDSWITH 4
struct exclude_list {
int nr;
int alloc;
struct exclude {
const char *pattern;
int patternlen;
const char *base;
int baselen;
int to_exclude;
int flags;
} **excludes;
};
struct dir_struct {
int nr, alloc;
int ignored_nr, ignored_alloc;
unsigned int show_ignored:1,
show_other_directories:1,
hide_empty_directories:1,
no_gitlinks:1,
collect_ignored:1;
struct dir_entry **entries;
struct dir_entry **ignored;
/* Exclude info */
const char *exclude_per_dir;
struct exclude_list exclude_list[3];
};
extern int common_prefix(const char **pathspec);
#define MATCHED_RECURSIVELY 1
#define MATCHED_FNMATCH 2
#define MATCHED_EXACTLY 3
extern int match_pathspec(const char **pathspec, const char *name, int namelen, int prefix, char *seen);
extern int read_directory(struct dir_struct *, const char *path, const char *base, int baselen, const char **pathspec);
extern int push_exclude_per_directory(struct dir_struct *, const char *, int);
extern void pop_exclude_per_directory(struct dir_struct *, int);
extern int excluded(struct dir_struct *, const char *);
extern void add_excludes_from_file(struct dir_struct *, const char *fname);
extern void add_exclude(const char *string, const char *base,
int baselen, struct exclude_list *which);
extern int file_exists(const char *);
extern struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len);
extern char *get_relative_cwd(char *buffer, int size, const char *dir);
extern int is_inside_dir(const char *dir);
extern int remove_dir_recursively(struct strbuf *path, int only_empty);
#endif