diff options
Diffstat (limited to 'cache.h')
| -rw-r--r-- | cache.h | 82 |
1 files changed, 59 insertions, 23 deletions
@@ -3,7 +3,7 @@ #include "git-compat-util.h" #include "strbuf.h" -#include "hash.h" +#include "hashmap.h" #include "advice.h" #include "gettext.h" #include "convert.h" @@ -130,12 +130,12 @@ struct stat_data { }; struct cache_entry { + struct hashmap_entry ent; struct stat_data ce_stat_data; unsigned int ce_mode; unsigned int ce_flags; unsigned int ce_namelen; unsigned char sha1[20]; - struct cache_entry *next; char name[FLEX_ARRAY]; /* more */ }; @@ -159,7 +159,6 @@ struct cache_entry { #define CE_ADDED (1 << 19) #define CE_HASHED (1 << 20) -#define CE_UNHASHED (1 << 21) #define CE_WT_REMOVE (1 << 22) /* remove in work directory */ #define CE_CONFLICTED (1 << 23) @@ -195,17 +194,18 @@ struct pathspec; * Copy the sha1 and stat state of a cache entry from one to * another. But we never change the name, or the hash state! */ -#define CE_STATE_MASK (CE_HASHED | CE_UNHASHED) static inline void copy_cache_entry(struct cache_entry *dst, const struct cache_entry *src) { - unsigned int state = dst->ce_flags & CE_STATE_MASK; + unsigned int state = dst->ce_flags & CE_HASHED; /* Don't copy hash chain and name */ - memcpy(dst, src, offsetof(struct cache_entry, next)); + memcpy(&dst->ce_stat_data, &src->ce_stat_data, + offsetof(struct cache_entry, name) - + offsetof(struct cache_entry, ce_stat_data)); /* Restore the hash state */ - dst->ce_flags = (dst->ce_flags & ~CE_STATE_MASK) | state; + dst->ce_flags = (dst->ce_flags & ~CE_HASHED) | state; } static inline unsigned create_ce_flags(unsigned stage) @@ -277,8 +277,8 @@ struct index_state { struct cache_time timestamp; unsigned name_hash_initialized : 1, initialized : 1; - struct hash_table name_hash; - struct hash_table dir_hash; + struct hashmap name_hash; + struct hashmap dir_hash; }; extern struct index_state the_index; @@ -316,7 +316,6 @@ extern void free_name_hash(struct index_state *istate); #define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options)) #define cache_dir_exists(name, namelen) index_dir_exists(&the_index, (name), (namelen)) #define cache_file_exists(name, namelen, igncase) index_file_exists(&the_index, (name), (namelen), (igncase)) -#define cache_name_exists(name, namelen, igncase) index_name_exists(&the_index, (name), (namelen), (igncase)) #define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen)) #define resolve_undo_clear() resolve_undo_clear_index(&the_index) #define unmerge_cache_entry_at(at) unmerge_index_entry_at(&the_index, at) @@ -354,6 +353,7 @@ static inline enum object_type object_type(unsigned int mode) #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY" #define INDEX_ENVIRONMENT "GIT_INDEX_FILE" #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE" +#define GIT_SHALLOW_FILE_ENVIRONMENT "GIT_SHALLOW_FILE" #define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR" #define CONFIG_ENVIRONMENT "GIT_CONFIG" #define CONFIG_DATA_ENVIRONMENT "GIT_CONFIG_PARAMETERS" @@ -398,7 +398,6 @@ extern int is_bare_repository(void); extern int is_inside_git_dir(void); extern char *git_work_tree_cfg; extern int is_inside_work_tree(void); -extern int have_git_dir(void); extern const char *get_git_dir(void); extern int is_git_directory(const char *path); extern char *get_object_directory(void); @@ -467,7 +466,6 @@ extern int unmerged_index(const struct index_state *); extern int verify_path(const char *path); extern struct cache_entry *index_dir_exists(struct index_state *istate, const char *name, int namelen); extern struct cache_entry *index_file_exists(struct index_state *istate, const char *name, int namelen, int igncase); -extern struct cache_entry *index_name_exists(struct index_state *istate, const char *name, int namelen, int igncase); extern int index_name_pos(const struct index_state *, 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 */ @@ -487,8 +485,9 @@ extern int remove_file_from_index(struct index_state *, const char *path); #define ADD_CACHE_IMPLICIT_DOT 32 /* internal to "git add -u/-A" */ extern int add_to_index(struct index_state *, const char *path, struct stat *, int flags); extern int add_file_to_index(struct index_state *, const char *path, int flags); -extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, int refresh); +extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, unsigned int refresh_options); extern int ce_same_name(const struct cache_entry *a, const struct cache_entry *b); +extern void set_object_name_for_intent_to_add_entry(struct cache_entry *ce); extern int index_name_is_other(const struct index_state *, const char *, int); extern void *read_blob_data_from_index(struct index_state *, const char *, unsigned long *); @@ -498,11 +497,13 @@ extern void *read_blob_data_from_index(struct index_state *, const char *, unsig #define CE_MATCH_RACY_IS_DIRTY 02 /* do stat comparison even if CE_SKIP_WORKTREE is true */ #define CE_MATCH_IGNORE_SKIP_WORKTREE 04 +/* ignore non-existent files during stat update */ +#define CE_MATCH_IGNORE_MISSING 0x08 +/* enable stat refresh */ +#define CE_MATCH_REFRESH 0x10 extern int ie_match_stat(const struct index_state *, const struct cache_entry *, struct stat *, unsigned int); extern int ie_modified(const struct index_state *, const struct cache_entry *, struct stat *, unsigned int); -extern int ce_path_match(const struct cache_entry *ce, const struct pathspec *pathspec); - #define HASH_WRITE_OBJECT 1 #define HASH_FORMAT_CHECK 2 extern int index_fd(unsigned char *sha1, int fd, struct stat *st, enum object_type type, const char *path, unsigned flags); @@ -737,8 +738,29 @@ enum sharedrepo { }; int git_config_perm(const char *var, const char *value); int adjust_shared_perm(const char *path); -int safe_create_leading_directories(char *path); -int safe_create_leading_directories_const(const char *path); + +/* + * Create the directory containing the named path, using care to be + * somewhat safe against races. Return one of the scld_error values + * to indicate success/failure. + * + * SCLD_VANISHED indicates that one of the ancestor directories of the + * path existed at one point during the function call and then + * suddenly vanished, probably because another process pruned the + * directory while we were working. To be robust against this kind of + * race, callers might want to try invoking the function again when it + * returns SCLD_VANISHED. + */ +enum scld_error { + SCLD_OK = 0, + SCLD_FAILED = -1, + SCLD_PERMS = -2, + SCLD_EXISTS = -3, + SCLD_VANISHED = -4 +}; +enum scld_error safe_create_leading_directories(char *path); +enum scld_error safe_create_leading_directories_const(const char *path); + int mkdir_in_gitdir(const char *path); extern void home_config_paths(char **global, char **xdg, char *file); extern char *expand_user_path(const char *path); @@ -751,6 +773,7 @@ int is_directory(const char *); const char *real_path(const char *path); const char *real_path_if_valid(const char *path); const char *absolute_path(const char *path); +const char *remove_leading_path(const char *in, const char *prefix); const char *relative_path(const char *in, const char *prefix, struct strbuf *sb); int normalize_path_copy_len(char *dst, const char *src, int *prefix_len); int normalize_path_copy(char *dst, const char *src); @@ -760,11 +783,11 @@ int daemon_avoid_alias(const char *path); int offset_1st_component(const char *path); /* object replacement */ -#define READ_SHA1_FILE_REPLACE 1 +#define LOOKUP_REPLACE_OBJECT 1 extern void *read_sha1_file_extended(const unsigned char *sha1, enum object_type *type, unsigned long *size, unsigned flag); static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size) { - return read_sha1_file_extended(sha1, type, size, READ_SHA1_FILE_REPLACE); + return read_sha1_file_extended(sha1, type, size, LOOKUP_REPLACE_OBJECT); } extern const unsigned char *do_lookup_replace_object(const unsigned char *sha1); static inline const unsigned char *lookup_replace_object(const unsigned char *sha1) @@ -773,6 +796,12 @@ static inline const unsigned char *lookup_replace_object(const unsigned char *sh return sha1; return do_lookup_replace_object(sha1); } +static inline const unsigned char *lookup_replace_object_extended(const unsigned char *sha1, unsigned flag) +{ + if (!(flag & LOOKUP_REPLACE_OBJECT)) + return sha1; + return lookup_replace_object(sha1); +} /* Read and unpack a sha1 file into memory, write memory to a sha1 file */ extern int sha1_object_info(const unsigned char *, unsigned long *); @@ -888,9 +917,12 @@ extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref); extern int interpret_branch_name(const char *str, int len, struct strbuf *); extern int get_sha1_mb(const char *str, unsigned char *sha1); -extern int refname_match(const char *abbrev_name, const char *full_name, const char **rules); -extern const char *ref_rev_parse_rules[]; -#define ref_fetch_rules ref_rev_parse_rules +/* + * Return true iff abbrev_name is a possible abbreviation for + * full_name according to the rules defined by ref_rev_parse_rules in + * refs.c. + */ +extern int refname_match(const char *abbrev_name, const char *full_name); extern int create_symref(const char *ref, const char *refs_heads_master, const char *logmsg); extern int validate_headref(const char *ref); @@ -976,6 +1008,7 @@ struct checkout { refresh_cache:1; }; +#define TEMPORARY_FILENAME_LENGTH 25 extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath); struct cache_def { @@ -1074,6 +1107,7 @@ struct object_info { enum object_type *typep; unsigned long *sizep; unsigned long *disk_sizep; + unsigned char *delta_base_sha1; /* Response */ enum { @@ -1098,7 +1132,7 @@ struct object_info { } packed; } u; }; -extern int sha1_object_info_extended(const unsigned char *, struct object_info *); +extern int sha1_object_info_extended(const unsigned char *, struct object_info *, unsigned flags); /* Dumb servers support */ extern int update_server_info(int); @@ -1236,6 +1270,8 @@ __attribute__((format (printf, 2, 3))) extern void trace_argv_printf(const char **argv, const char *format, ...); extern void trace_repo_setup(const char *prefix); extern int trace_want(const char *key); +__attribute__((format (printf, 2, 3))) +extern void trace_printf_key(const char *key, const char *fmt, ...); extern void trace_strbuf(const char *key, const struct strbuf *buf); void packet_trace_identity(const char *prog); |