diff options
Diffstat (limited to 'cache.h')
| -rw-r--r-- | cache.h | 176 |
1 files changed, 148 insertions, 28 deletions
@@ -34,6 +34,7 @@ int git_inflate(git_zstream *, int flush); void git_deflate_init(git_zstream *, int level); void git_deflate_init_gzip(git_zstream *, int level); +void git_deflate_init_raw(git_zstream *, int level); void git_deflate_end(git_zstream *); int git_deflate_abort(git_zstream *); int git_deflate_end_gently(git_zstream *); @@ -118,15 +119,19 @@ struct cache_time { unsigned int nsec; }; +struct stat_data { + struct cache_time sd_ctime; + struct cache_time sd_mtime; + unsigned int sd_dev; + unsigned int sd_ino; + unsigned int sd_uid; + unsigned int sd_gid; + unsigned int sd_size; +}; + struct cache_entry { - struct cache_time ce_ctime; - struct cache_time ce_mtime; - unsigned int ce_dev; - unsigned int ce_ino; + struct stat_data ce_stat_data; unsigned int ce_mode; - unsigned int ce_uid; - unsigned int ce_gid; - unsigned int ce_size; unsigned int ce_flags; unsigned int ce_namelen; unsigned char sha1[20]; @@ -161,6 +166,9 @@ struct cache_entry { #define CE_UNPACKED (1 << 24) #define CE_NEW_SKIP_WORKTREE (1 << 25) +/* used to temporarily mark paths matched by pathspecs */ +#define CE_MATCHED (1 << 26) + /* * Extended on-disk flags */ @@ -186,7 +194,8 @@ struct cache_entry { * 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, struct cache_entry *src) +static inline void copy_cache_entry(struct cache_entry *dst, + const struct cache_entry *src) { unsigned int state = dst->ce_flags & CE_STATE_MASK; @@ -218,7 +227,8 @@ static inline unsigned int create_ce_mode(unsigned int mode) return S_IFGITLINK; return S_IFREG | ce_permissions(mode); } -static inline unsigned int ce_mode_from_stat(struct cache_entry *ce, unsigned int mode) +static inline unsigned int ce_mode_from_stat(const struct cache_entry *ce, + unsigned int mode) { extern int trust_executable_bit, has_symlinks; if (!has_symlinks && S_ISREG(mode) && @@ -307,6 +317,7 @@ extern void free_name_hash(struct index_state *istate); #define resolve_undo_clear() resolve_undo_clear_index(&the_index) #define unmerge_cache_entry_at(at) unmerge_index_entry_at(&the_index, at) #define unmerge_cache(pathspec) unmerge_index(&the_index, pathspec) +#define read_blob_data_from_cache(path, sz) read_blob_data_from_index(&the_index, (path), (sz)) #endif enum object_type { @@ -330,9 +341,11 @@ static inline enum object_type object_type(unsigned int mode) OBJ_BLOB; } +/* Double-check local_repo_env below if you add to this list. */ #define GIT_DIR_ENVIRONMENT "GIT_DIR" #define GIT_NAMESPACE_ENVIRONMENT "GIT_NAMESPACE" #define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE" +#define GIT_PREFIX_ENVIRONMENT "GIT_PREFIX" #define DEFAULT_GIT_DIR_ENVIRONMENT ".git" #define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY" #define INDEX_ENVIRONMENT "GIT_INDEX_FILE" @@ -351,15 +364,27 @@ static inline enum object_type object_type(unsigned int mode) #define GIT_NOTES_DISPLAY_REF_ENVIRONMENT "GIT_NOTES_DISPLAY_REF" #define GIT_NOTES_REWRITE_REF_ENVIRONMENT "GIT_NOTES_REWRITE_REF" #define GIT_NOTES_REWRITE_MODE_ENVIRONMENT "GIT_NOTES_REWRITE_MODE" +#define GIT_LITERAL_PATHSPECS_ENVIRONMENT "GIT_LITERAL_PATHSPECS" /* - * Repository-local GIT_* environment variables - * The array is NULL-terminated to simplify its usage in contexts such - * environment creation or simple walk of the list. - * The number of non-NULL entries is available as a macro. + * This environment variable is expected to contain a boolean indicating + * whether we should or should not treat: + * + * GIT_DIR=foo.git git ... + * + * as if GIT_WORK_TREE=. was given. It's not expected that users will make use + * of this, but we use it internally to communicate to sub-processes that we + * are in a bare repo. If not set, defaults to true. */ -#define LOCAL_REPO_ENV_SIZE 9 -extern const char *const local_repo_env[LOCAL_REPO_ENV_SIZE + 1]; +#define GIT_IMPLICIT_WORK_TREE_ENVIRONMENT "GIT_IMPLICIT_WORK_TREE" + +/* + * Repository-local GIT_* environment variables; these will be cleared + * when git spawns a sub-process that runs inside another repository. + * The array is NULL-terminated, which makes it easy to pass in the "env" + * parameter of a run-command invocation, or to do a simple walk. + */ +extern const char * const local_repo_env[]; extern int is_bare_repository_cfg; extern int is_bare_repository(void); @@ -449,11 +474,13 @@ extern int remove_file_from_index(struct index_state *, const char *path); #define ADD_CACHE_IGNORE_ERRORS 4 #define ADD_CACHE_IGNORE_REMOVAL 8 #define ADD_CACHE_INTENT 16 +#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 int ce_same_name(struct cache_entry *a, struct cache_entry *b); 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 *); /* do stat comparison even if CE_VALID is true */ #define CE_MATCH_IGNORE_VALID 01 @@ -461,8 +488,10 @@ extern int index_name_is_other(const struct index_state *, const char *, int); #define CE_MATCH_RACY_IS_DIRTY 02 /* do stat comparison even if CE_SKIP_WORKTREE is true */ #define CE_MATCH_IGNORE_SKIP_WORKTREE 04 -extern int ie_match_stat(const struct index_state *, struct cache_entry *, struct stat *, unsigned int); -extern int ie_modified(const struct index_state *, struct cache_entry *, struct stat *, unsigned int); +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); + +#define PATHSPEC_ONESTAR 1 /* the pathspec pattern sastisfies GFNM_ONESTAR */ struct pathspec { const char **raw; /* get_pathspec() result, not freed by free_pathspec() */ @@ -473,7 +502,8 @@ struct pathspec { struct pathspec_item { const char *match; int len; - unsigned int use_wildcard:1; + int nowildcard_len; + int flags; } *items; }; @@ -481,10 +511,27 @@ extern int init_pathspec(struct pathspec *, const char **); extern void free_pathspec(struct pathspec *); extern int ce_path_match(const struct cache_entry *ce, const struct pathspec *pathspec); +extern int limit_pathspec_to_literal(void); + #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); extern int index_path(unsigned char *sha1, const char *path, struct stat *st, unsigned flags); + +/* + * Record to sd the data from st that we use to check whether a file + * might have changed. + */ +extern void fill_stat_data(struct stat_data *sd, struct stat *st); + +/* + * Return 0 if st is consistent with a file not having been changed + * since sd was filled. If there are differences, return a + * combination of MTIME_CHANGED, CTIME_CHANGED, OWNER_CHANGED, + * INODE_CHANGED, and DATA_CHANGED. + */ +extern int match_stat_data(const struct stat_data *sd, struct stat *st); + extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st); #define REFRESH_REALLY 0x0001 /* ignore_valid */ @@ -521,6 +568,7 @@ extern int delete_ref(const char *, const unsigned char *sha1, int delopt); /* Environment bits from configuration mechanism */ extern int trust_executable_bit; extern int trust_ctime; +extern int check_stat; extern int quote_path_fully; extern int has_symlinks; extern int minimum_abbrev, default_abbrev; @@ -547,6 +595,12 @@ extern int core_preload_index; extern int core_apply_sparse_checkout; extern int precomposed_unicode; +/* + * The character that begins a commented line in user-editable file + * that is subject to stripspace. + */ +extern char comment_line_char; + enum branch_track { BRANCH_TRACK_UNSPECIFIED = -1, BRANCH_TRACK_NEVER = 0, @@ -691,8 +745,7 @@ enum sharedrepo { PERM_EVERYBODY = 0664 }; int git_config_perm(const char *var, const char *value); -int set_shared_perm(const char *path, int mode); -#define adjust_shared_perm(path) set_shared_perm((path), 0) +int adjust_shared_perm(const char *path); int safe_create_leading_directories(char *path); int safe_create_leading_directories_const(const char *path); int mkdir_in_gitdir(const char *path); @@ -742,9 +795,6 @@ extern int parse_sha1_header(const char *hdr, unsigned long *sizep); /* global flag to enable extra checks when accessing packed objects */ extern int do_check_packed_object_crc; -/* for development: log offset of pack access */ -extern const char *log_pack_access; - extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type); extern int move_temp_to_file(const char *tmpfile, const char *filename); @@ -880,6 +930,7 @@ void show_date_relative(unsigned long time, int tz, const struct timeval *now, struct strbuf *timebuf); int parse_date(const char *date, char *buf, int bufsize); int parse_date_basic(const char *date, unsigned long *timestamp, int *offset); +int parse_expiry_date(const char *date, unsigned long *timestamp); void datestamp(char *buf, int bufsize); #define approxidate(s) approxidate_careful((s), NULL) unsigned long approxidate_careful(const char *, int *); @@ -991,15 +1042,32 @@ struct ref { unsigned char old_sha1[20]; unsigned char new_sha1[20]; char *symref; - unsigned int force:1, - merge:1, - nonfastforward:1, - deletion:1; + unsigned int + force:1, + forced_update:1, + deletion:1, + matched:1; + + /* + * Order is important here, as we write to FETCH_HEAD + * in numeric order. And the default NOT_FOR_MERGE + * should be 0, so that xcalloc'd structures get it + * by default. + */ + enum { + FETCH_HEAD_MERGE = -1, + FETCH_HEAD_NOT_FOR_MERGE = 0, + FETCH_HEAD_IGNORE = 1 + } fetch_head_status; + enum { REF_STATUS_NONE = 0, REF_STATUS_OK, REF_STATUS_REJECT_NONFASTFORWARD, + REF_STATUS_REJECT_ALREADY_EXISTS, REF_STATUS_REJECT_NODELETE, + REF_STATUS_REJECT_FETCH_FIRST, + REF_STATUS_REJECT_NEEDS_FORCE, REF_STATUS_UPTODATE, REF_STATUS_REMOTE_REJECT, REF_STATUS_EXPECTING_REPORT @@ -1023,7 +1091,9 @@ struct extra_have_objects { int nr, alloc; unsigned char (*array)[20]; }; -extern struct ref **get_remote_heads(int in, struct ref **list, unsigned int flags, struct extra_have_objects *); +extern struct ref **get_remote_heads(int in, char *src_buf, size_t src_len, + struct ref **list, unsigned int flags, + struct extra_have_objects *); extern int server_supports(const char *feature); extern int parse_feature_request(const char *features, const char *feature); extern const char *server_feature_value(const char *feature, int *len_ret); @@ -1031,6 +1101,9 @@ extern const char *parse_feature_value(const char *feature_list, const char *fea extern struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_path); +/* A hook for count-objects to report invalid files in pack directory */ +extern void (*report_garbage)(const char *desc, const char *path); + extern void prepare_packed_git(void); extern void reprepare_packed_git(void); extern void install_packed_git(struct packed_git *pack); @@ -1059,6 +1132,7 @@ extern int unpack_object_header(struct packed_git *, struct pack_window **, off_ struct object_info { /* Request */ unsigned long *sizep; + unsigned long *disk_sizep; /* Response */ enum { @@ -1128,6 +1202,9 @@ extern int check_repository_format_version(const char *var, const char *value, v extern int git_env_bool(const char *, int); extern int git_config_system(void); extern int config_error_nonbool(const char *); +#if defined(__GNUC__) && ! defined(__clang__) +#define config_error_nonbool(s) (config_error_nonbool(s), -1) +#endif extern const char *get_log_output_encoding(void); extern const char *get_commit_output_encoding(void); @@ -1141,12 +1218,28 @@ struct config_include_data { #define CONFIG_INCLUDE_INIT { 0 } extern int git_config_include(const char *name, const char *value, void *data); +/* + * Match and parse a config key of the form: + * + * section.(subsection.)?key + * + * (i.e., what gets handed to a config_fn_t). The caller provides the section; + * we return -1 if it does not match, 0 otherwise. The subsection and key + * out-parameters are filled by the function (and subsection is NULL if it is + * missing). + */ +extern int parse_config_key(const char *var, + const char *section, + const char **subsection, int *subsection_len, + const char **key); + extern int committer_ident_sufficiently_given(void); extern int author_ident_sufficiently_given(void); extern const char *git_commit_encoding; extern const char *git_log_output_encoding; extern const char *git_mailmap_file; +extern const char *git_mailmap_blob; /* IO helper functions */ extern void maybe_flush_or_die(FILE *, const char *); @@ -1267,4 +1360,31 @@ int checkout_fast_forward(const unsigned char *from, int sane_execvp(const char *file, char *const argv[]); +/* + * A struct to encapsulate the concept of whether a file has changed + * since we last checked it. This uses criteria similar to those used + * for the index. + */ +struct stat_validity { + struct stat_data *sd; +}; + +void stat_validity_clear(struct stat_validity *sv); + +/* + * Returns 1 if the path is a regular file (or a symlink to a regular + * file) and matches the saved stat_validity, 0 otherwise. A missing + * or inaccessible file is considered a match if the struct was just + * initialized, or if the previous update found an inaccessible file. + */ +int stat_validity_check(struct stat_validity *sv, const char *path); + +/* + * Update the stat_validity from a file opened at descriptor fd. If + * the file is missing, inaccessible, or not a regular file, then + * future calls to stat_validity_check will match iff one of those + * conditions continues to be true. + */ +void stat_validity_update(struct stat_validity *sv, int fd); + #endif /* CACHE_H */ |