X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=cache.h;h=0dcd2fe53b6aa7b19d963e130ce5fd4dea2389bc;hb=2c04662d89eaa55cecb6effd743c17051d1458ec;hp=aa74bcc0179fc20c4ddc490d6da4bf0730a2fb9e;hpb=5180cacc202bb20b15981469487eb8d6b0509997;p=git.git diff --git a/cache.h b/cache.h index aa74bcc0..0dcd2fe5 100644 --- a/cache.h +++ b/cache.h @@ -14,6 +14,8 @@ #include #include #include +#include +#include #include SHA1_HEADER #include @@ -32,12 +34,35 @@ #define DTYPE(de) DT_UNKNOWN #endif +#ifdef __GNUC__ +#define NORETURN __attribute__((__noreturn__)) +#else +#define NORETURN +#ifndef __attribute__ +#define __attribute__(x) +#endif +#endif + +/* + * Intensive research over the course of many years has shown that + * port 9418 is totally unused by anything else. Or + * + * Your search - "port 9418" - did not match any documents. + * + * as www.google.com puts it. + */ +#define DEFAULT_GIT_PORT 9418 + /* * Environment variables transition. * We accept older names for now but warn. */ extern char *gitenv_bc(const char *); +#ifdef __GNUC__ #define gitenv(e) (getenv(e) ? : gitenv_bc(e)) +#else +#define gitenv(e) (getenv(e) ? getenv(e) : gitenv_bc(e)) +#endif /* * Basic data structures for the directory cache @@ -84,6 +109,7 @@ struct cache_entry { #define CE_NAMEMASK (0x0fff) #define CE_STAGEMASK (0x3000) +#define CE_UPDATE (0x4000) #define CE_STAGESHIFT 12 #define create_ce_flags(len, stage) htons((len) | ((stage) << CE_STAGESHIFT)) @@ -108,12 +134,19 @@ extern unsigned int active_nr, active_alloc, active_cache_changed; #define DEFAULT_GIT_DIR_ENVIRONMENT ".git" #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY" #define INDEX_ENVIRONMENT "GIT_INDEX_FILE" +#define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE" extern char *get_object_directory(void); +extern char *get_refs_directory(void); extern char *get_index_file(void); +extern char *get_graft_file(void); #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES" +extern const char **get_pathspec(const char *prefix, char **pathspec); +extern const char *setup_git_directory(void); +extern char *prefix_path(const char *prefix, int len, char *path); + #define alloc_nr(x) (((x)+16)*3/2) /* Initialize and use the cache information */ @@ -122,12 +155,14 @@ extern int write_cache(int newfd, struct cache_entry **cache, int entries); extern int cache_name_pos(const char *name, int namelen); #define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */ #define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */ +#define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */ extern int add_cache_entry(struct cache_entry *ce, int option); extern int remove_cache_entry_at(int pos); extern int remove_file_from_cache(char *path); extern int ce_same_name(struct cache_entry *a, struct cache_entry *b); extern int ce_match_stat(struct cache_entry *ce, struct stat *st); -extern int index_fd(unsigned char *sha1, int fd, struct stat *st); +extern int ce_path_match(const struct cache_entry *ce, const char **pathspec); +extern int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object, const char *type); extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st); struct cache_file { @@ -147,34 +182,55 @@ extern void rollback_index_file(struct cache_file *); #define TYPE_CHANGED 0x0040 /* Return a statically allocated filename matching the sha1 signature */ +extern char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2))); +extern char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2))); extern char *sha1_file_name(const unsigned char *sha1); +extern char *sha1_pack_name(const unsigned char *sha1); +extern char *sha1_pack_index_name(const unsigned char *sha1); + +int git_mkstemp(char *path, size_t n, const char *template); + +int safe_create_leading_directories(char *path); +char *safe_strncpy(char *, const char *, size_t); /* Read and unpack a sha1 file into memory, write memory to a sha1 file */ -extern void * map_sha1_file(const unsigned char *sha1, unsigned long *size); extern int unpack_sha1_header(z_stream *stream, void *map, unsigned long mapsize, void *buffer, unsigned long size); extern int parse_sha1_header(char *hdr, char *type, unsigned long *sizep); +extern int sha1_object_info(const unsigned char *, char *, unsigned long *); extern void * unpack_sha1_file(void *map, unsigned long mapsize, char *type, unsigned long *size); extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size); extern int write_sha1_file(void *buf, unsigned long len, const char *type, unsigned char *return_sha1); +extern char *write_sha1_file_prepare(void *buf, + unsigned long len, + const char *type, + unsigned char *sha1, + unsigned char *hdr, + int *hdrlen); -extern int check_sha1_signature(unsigned char *sha1, void *buf, unsigned long size, const char *type); +extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type); /* Read a tree into the cache */ -extern int read_tree(void *buffer, unsigned long size, int stage); +extern int read_tree(void *buffer, unsigned long size, int stage, const char **paths); -extern int write_sha1_from_fd(const unsigned char *sha1, int fd); +extern int write_sha1_from_fd(const unsigned char *sha1, int fd, char *buffer, + size_t bufsize, size_t *bufposn); +extern int write_sha1_to_fd(int fd, const unsigned char *sha1); +extern int has_sha1_pack(const unsigned char *sha1); extern int has_sha1_file(const unsigned char *sha1); +extern int has_pack_file(const unsigned char *sha1); +extern int has_pack_index(const unsigned char *sha1); + /* Convert to/from hex/sha1 representation */ extern int get_sha1(const char *str, unsigned char *sha1); extern int get_sha1_hex(const char *hex, unsigned char *sha1); extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */ /* General helper functions */ -extern void usage(const char *err); -extern void die(const char *err, ...); -extern int error(const char *err, ...); +extern void usage(const char *err) NORETURN; +extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2))); +extern int error(const char *err, ...) __attribute__((format (printf, 1, 2))); extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2); extern int cache_name_compare(const char *name1, int len1, const char *name2, int len2); @@ -185,9 +241,14 @@ extern void *read_object_with_reference(const unsigned char *sha1, unsigned char *sha1_ret); const char *show_date(unsigned long time, int timezone); -void parse_date(char *date, char *buf, int bufsize); +void parse_date(const char *date, char *buf, int bufsize); void datestamp(char *buf, int bufsize); +extern int setup_ident(void); +extern char *get_ident(const char *name, const char *email, const char *date_str); +extern char *git_author_info(void); +extern char *git_committer_info(void); + static inline void *xmalloc(size_t size) { void *ret = malloc(size); @@ -212,4 +273,79 @@ static inline void *xcalloc(size_t nmemb, size_t size) return ret; } +struct checkout { + const char *base_dir; + int base_dir_len; + unsigned force:1, + quiet:1, + not_new:1, + refresh_cache:1; +}; + +extern int checkout_entry(struct cache_entry *ce, struct checkout *state); + +extern struct alternate_object_database { + struct alternate_object_database *next; + char *name; + char base[0]; /* more */ +} *alt_odb_list; +extern void prepare_alt_odb(void); + +extern struct packed_git { + struct packed_git *next; + unsigned long index_size; + unsigned long pack_size; + unsigned int *index_base; + void *pack_base; + unsigned int pack_last_used; + unsigned int pack_use_cnt; + unsigned char sha1[20]; + char pack_name[0]; /* something like ".git/objects/pack/xxxxx.pack" */ +} *packed_git; + +struct pack_entry { + unsigned int offset; + unsigned char sha1[20]; + struct packed_git *p; +}; + +struct ref { + struct ref *next; + unsigned char old_sha1[20]; + unsigned char new_sha1[20]; + unsigned char force; + struct ref *peer_ref; /* when renaming */ + char name[0]; +}; + +extern int git_connect(int fd[2], char *url, const char *prog); +extern int finish_connect(pid_t pid); +extern int path_match(const char *path, int nr, char **match); +extern int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail, + int nr_refspec, char **refspec, int all); +extern int get_ack(int fd, unsigned char *result_sha1); +extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match); + +extern struct packed_git *parse_pack_index(unsigned char *sha1); +extern struct packed_git *parse_pack_index_file(unsigned char *sha1, + char *idx_path); + +extern void prepare_packed_git(void); +extern void install_packed_git(struct packed_git *pack); + +extern struct packed_git *find_sha1_pack(const unsigned char *sha1, + struct packed_git *packs); + +extern int use_packed_git(struct packed_git *); +extern void unuse_packed_git(struct packed_git *); +extern struct packed_git *add_packed_git(char *, int); +extern int num_packed_objects(const struct packed_git *p); +extern int nth_packed_object_sha1(const struct packed_git *, int, unsigned char*); +extern int find_pack_entry_one(const unsigned char *, struct pack_entry *, struct packed_git *); +extern void *unpack_entry_gently(struct pack_entry *, char *, unsigned long *); +extern void packed_object_info_detail(struct pack_entry *, char *, unsigned long *, unsigned long *, int *, unsigned char *); + +/* Dumb servers support */ +extern int update_server_info(int); + #endif /* CACHE_H */