| #ifndef CACHE_H |
| #define CACHE_H |
| |
| #include "git-compat-util.h" |
| #include "strbuf.h" |
| #include "hashmap.h" |
| #include "advice.h" |
| #include "gettext.h" |
| #include "convert.h" |
| |
| #include SHA1_HEADER |
| #ifndef git_SHA_CTX |
| #define git_SHA_CTX SHA_CTX |
| #define git_SHA1_Init SHA1_Init |
| #define git_SHA1_Update SHA1_Update |
| #define git_SHA1_Final SHA1_Final |
| #endif |
| |
| #include <zlib.h> |
| typedef struct git_zstream { |
| z_stream z; |
| unsigned long avail_in; |
| unsigned long avail_out; |
| unsigned long total_in; |
| unsigned long total_out; |
| unsigned char *next_in; |
| unsigned char *next_out; |
| } git_zstream; |
| |
| void git_inflate_init(git_zstream *); |
| void git_inflate_init_gzip_only(git_zstream *); |
| void git_inflate_end(git_zstream *); |
| 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 *); |
| int git_deflate(git_zstream *, int flush); |
| unsigned long git_deflate_bound(git_zstream *, unsigned long); |
| |
| #if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT) |
| #define DTYPE(de) ((de)->d_type) |
| #else |
| #undef DT_UNKNOWN |
| #undef DT_DIR |
| #undef DT_REG |
| #undef DT_LNK |
| #define DT_UNKNOWN 0 |
| #define DT_DIR 1 |
| #define DT_REG 2 |
| #define DT_LNK 3 |
| #define DTYPE(de) DT_UNKNOWN |
| #endif |
| |
| /* unknown mode (impossible combination S_IFIFO|S_IFCHR) */ |
| #define S_IFINVALID 0030000 |
| |
| /* |
| * A "directory link" is a link to another git directory. |
| * |
| * The value 0160000 is not normally a valid mode, and |
| * also just happens to be S_IFDIR + S_IFLNK |
| * |
| * NOTE! We *really* shouldn't depend on the S_IFxxx macros |
| * always having the same values everywhere. We should use |
| * our internal git values for these things, and then we can |
| * translate that to the OS-specific value. It just so |
| * happens that everybody shares the same bit representation |
| * in the UNIX world (and apparently wider too..) |
| */ |
| #define S_IFGITLINK 0160000 |
| #define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK) |
| |
| /* |
| * 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. |
| * |
| * This port has been properly assigned for git use by IANA: |
| * git (Assigned-9418) [I06-050728-0001]. |
| * |
| * git 9418/tcp git pack transfer service |
| * git 9418/udp git pack transfer service |
| * |
| * with Linus Torvalds <torvalds@osdl.org> as the point of |
| * contact. September 2005. |
| * |
| * See http://www.iana.org/assignments/port-numbers |
| */ |
| #define DEFAULT_GIT_PORT 9418 |
| |
| /* |
| * Basic data structures for the directory cache |
| */ |
| |
| #define CACHE_SIGNATURE 0x44495243 /* "DIRC" */ |
| struct cache_header { |
| uint32_t hdr_signature; |
| uint32_t hdr_version; |
| uint32_t hdr_entries; |
| }; |
| |
| #define INDEX_FORMAT_LB 2 |
| #define INDEX_FORMAT_UB 4 |
| |
| /* |
| * The "cache_time" is just the low 32 bits of the |
| * time. It doesn't matter if it overflows - we only |
| * check it for equality in the 32 bits we save. |
| */ |
| struct cache_time { |
| uint32_t sec; |
| uint32_t 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 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]; |
| char name[FLEX_ARRAY]; /* more */ |
| }; |
| |
| #define CE_STAGEMASK (0x3000) |
| #define CE_EXTENDED (0x4000) |
| #define CE_VALID (0x8000) |
| #define CE_STAGESHIFT 12 |
| |
| /* |
| * Range 0xFFFF0000 in ce_flags is divided into |
| * two parts: in-memory flags and on-disk ones. |
| * Flags in CE_EXTENDED_FLAGS will get saved on-disk |
| * if you want to save a new flag, add it in |
| * CE_EXTENDED_FLAGS |
| * |
| * In-memory only flags |
| */ |
| #define CE_UPDATE (1 << 16) |
| #define CE_REMOVE (1 << 17) |
| #define CE_UPTODATE (1 << 18) |
| #define CE_ADDED (1 << 19) |
| |
| #define CE_HASHED (1 << 20) |
| #define CE_WT_REMOVE (1 << 22) /* remove in work directory */ |
| #define CE_CONFLICTED (1 << 23) |
| |
| #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 |
| */ |
| #define CE_INTENT_TO_ADD (1 << 29) |
| #define CE_SKIP_WORKTREE (1 << 30) |
| /* CE_EXTENDED2 is for future extension */ |
| #define CE_EXTENDED2 (1 << 31) |
| |
| #define CE_EXTENDED_FLAGS (CE_INTENT_TO_ADD | CE_SKIP_WORKTREE) |
| |
| /* |
| * Safeguard to avoid saving wrong flags: |
| * - CE_EXTENDED2 won't get saved until its semantic is known |
| * - Bits in 0x0000FFFF have been saved in ce_flags already |
| * - Bits in 0x003F0000 are currently in-memory flags |
| */ |
| #if CE_EXTENDED_FLAGS & 0x803FFFFF |
| #error "CE_EXTENDED_FLAGS out of range" |
| #endif |
| |
| 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! |
| */ |
| static inline void copy_cache_entry(struct cache_entry *dst, |
| const struct cache_entry *src) |
| { |
| unsigned int state = dst->ce_flags & CE_HASHED; |
| |
| /* Don't copy hash chain and name */ |
| 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_HASHED) | state; |
| } |
| |
| static inline unsigned create_ce_flags(unsigned stage) |
| { |
| return (stage << CE_STAGESHIFT); |
| } |
| |
| #define ce_namelen(ce) ((ce)->ce_namelen) |
| #define ce_size(ce) cache_entry_size(ce_namelen(ce)) |
| #define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT) |
| #define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE) |
| #define ce_skip_worktree(ce) ((ce)->ce_flags & CE_SKIP_WORKTREE) |
| #define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE) |
| |
| #define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644) |
| static inline unsigned int create_ce_mode(unsigned int mode) |
| { |
| if (S_ISLNK(mode)) |
| return S_IFLNK; |
| if (S_ISDIR(mode) || S_ISGITLINK(mode)) |
| return S_IFGITLINK; |
| return S_IFREG | ce_permissions(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) && |
| ce && S_ISLNK(ce->ce_mode)) |
| return ce->ce_mode; |
| if (!trust_executable_bit && S_ISREG(mode)) { |
| if (ce && S_ISREG(ce->ce_mode)) |
| return ce->ce_mode; |
| return create_ce_mode(0666); |
| } |
| return create_ce_mode(mode); |
| } |
| static inline int ce_to_dtype(const struct cache_entry *ce) |
| { |
| unsigned ce_mode = ntohl(ce->ce_mode); |
| if (S_ISREG(ce_mode)) |
| return DT_REG; |
| else if (S_ISDIR(ce_mode) || S_ISGITLINK(ce_mode)) |
| return DT_DIR; |
| else if (S_ISLNK(ce_mode)) |
| return DT_LNK; |
| else |
| return DT_UNKNOWN; |
| } |
| static inline unsigned int canon_mode(unsigned int mode) |
| { |
| if (S_ISREG(mode)) |
| return S_IFREG | ce_permissions(mode); |
| if (S_ISLNK(mode)) |
| return S_IFLNK; |
| if (S_ISDIR(mode)) |
| return S_IFDIR; |
| return S_IFGITLINK; |
| } |
| |
| #define cache_entry_size(len) (offsetof(struct cache_entry,name) + (len) + 1) |
| |
| struct index_state { |
| struct cache_entry **cache; |
| unsigned int version; |
| unsigned int cache_nr, cache_alloc, cache_changed; |
| struct string_list *resolve_undo; |
| struct cache_tree *cache_tree; |
| struct cache_time timestamp; |
| unsigned name_hash_initialized : 1, |
| initialized : 1; |
| struct hashmap name_hash; |
| struct hashmap dir_hash; |
| }; |
| |
| extern struct index_state the_index; |
| |
| /* Name hashing */ |
| extern void add_name_hash(struct index_state *istate, struct cache_entry *ce); |
| extern void remove_name_hash(struct index_state *istate, struct cache_entry *ce); |
| extern void free_name_hash(struct index_state *istate); |
| |
| |
| #ifndef NO_THE_INDEX_COMPATIBILITY_MACROS |
| #define active_cache (the_index.cache) |
| #define active_nr (the_index.cache_nr) |
| #define active_alloc (the_index.cache_alloc) |
| #define active_cache_changed (the_index.cache_changed) |
| #define active_cache_tree (the_index.cache_tree) |
| |
| #define read_cache() read_index(&the_index) |
| #define read_cache_from(path) read_index_from(&the_index, (path)) |
| #define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec)) |
| #define is_cache_unborn() is_index_unborn(&the_index) |
| #define read_cache_unmerged() read_index_unmerged(&the_index) |
| #define write_cache(newfd, cache, entries) write_index(&the_index, (newfd)) |
| #define discard_cache() discard_index(&the_index) |
| #define unmerged_cache() unmerged_index(&the_index) |
| #define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen)) |
| #define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option)) |
| #define rename_cache_entry_at(pos, new_name) rename_index_entry_at(&the_index, (pos), (new_name)) |
| #define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos)) |
| #define remove_file_from_cache(path) remove_file_from_index(&the_index, (path)) |
| #define add_to_cache(path, st, flags) add_to_index(&the_index, (path), (st), (flags)) |
| #define add_file_to_cache(path, flags) add_file_to_index(&the_index, (path), (flags)) |
| #define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL, NULL) |
| #define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options)) |
| #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_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) |
| #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 { |
| OBJ_BAD = -1, |
| OBJ_NONE = 0, |
| OBJ_COMMIT = 1, |
| OBJ_TREE = 2, |
| OBJ_BLOB = 3, |
| OBJ_TAG = 4, |
| /* 5 for future expansion */ |
| OBJ_OFS_DELTA = 6, |
| OBJ_REF_DELTA = 7, |
| OBJ_ANY, |
| OBJ_MAX |
| }; |
| |
| static inline enum object_type object_type(unsigned int mode) |
| { |
| return S_ISDIR(mode) ? OBJ_TREE : |
| S_ISGITLINK(mode) ? OBJ_COMMIT : |
| 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" |
| #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" |
| #define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH" |
| #define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES" |
| #define NO_REPLACE_OBJECTS_ENVIRONMENT "GIT_NO_REPLACE_OBJECTS" |
| #define GITATTRIBUTES_FILE ".gitattributes" |
| #define INFOATTRIBUTES_FILE "info/attributes" |
| #define ATTRIBUTE_MACRO_PREFIX "[attr]" |
| #define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF" |
| #define GIT_NOTES_DEFAULT_REF "refs/notes/commits" |
| #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" |
| #define GIT_GLOB_PATHSPECS_ENVIRONMENT "GIT_GLOB_PATHSPECS" |
| #define GIT_NOGLOB_PATHSPECS_ENVIRONMENT "GIT_NOGLOB_PATHSPECS" |
| #define GIT_ICASE_PATHSPECS_ENVIRONMENT "GIT_ICASE_PATHSPECS" |
| |
| /* |
| * 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 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); |
| extern int is_inside_git_dir(void); |
| extern char *git_work_tree_cfg; |
| extern int is_inside_work_tree(void); |
| extern const char *get_git_dir(void); |
| extern int is_git_directory(const char *path); |
| extern char *get_object_directory(void); |
| extern char *get_index_file(void); |
| extern char *get_graft_file(void); |
| extern int set_git_dir(const char *path); |
| extern const char *get_git_namespace(void); |
| extern const char *strip_namespace(const char *namespaced_ref); |
| extern const char *get_git_work_tree(void); |
| extern const char *read_gitfile(const char *path); |
| extern const char *resolve_gitdir(const char *suspect); |
| extern void set_git_work_tree(const char *tree); |
| |
| #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES" |
| |
| extern const char **get_pathspec(const char *prefix, const char **pathspec); |
| extern void setup_work_tree(void); |
| extern const char *setup_git_directory_gently(int *); |
| extern const char *setup_git_directory(void); |
| extern char *prefix_path(const char *prefix, int len, const char *path); |
| extern char *prefix_path_gently(const char *prefix, int len, int *remaining, const char *path); |
| extern const char *prefix_filename(const char *prefix, int len, const char *path); |
| extern int check_filename(const char *prefix, const char *name); |
| extern void verify_filename(const char *prefix, |
| const char *name, |
| int diagnose_misspelt_rev); |
| extern void verify_non_filename(const char *prefix, const char *name); |
| extern int path_inside_repo(const char *prefix, const char *path); |
| |
| #define INIT_DB_QUIET 0x0001 |
| |
| extern int set_git_dir_init(const char *git_dir, const char *real_git_dir, int); |
| extern int init_db(const char *template_dir, unsigned int flags); |
| |
| extern void sanitize_stdfds(void); |
| extern int daemonize(void); |
| |
| #define alloc_nr(x) (((x)+16)*3/2) |
| |
| /* |
| * Realloc the buffer pointed at by variable 'x' so that it can hold |
| * at least 'nr' entries; the number of entries currently allocated |
| * is 'alloc', using the standard growing factor alloc_nr() macro. |
| * |
| * DO NOT USE any expression with side-effect for 'x', 'nr', or 'alloc'. |
| */ |
| #define ALLOC_GROW(x, nr, alloc) \ |
| do { \ |
| if ((nr) > alloc) { \ |
| if (alloc_nr(alloc) < (nr)) \ |
| alloc = (nr); \ |
| else \ |
| alloc = alloc_nr(alloc); \ |
| x = xrealloc((x), alloc * sizeof(*(x))); \ |
| } \ |
| } while (0) |
| |
| /* Initialize and use the cache information */ |
| extern int read_index(struct index_state *); |
| extern int read_index_preload(struct index_state *, const struct pathspec *pathspec); |
| extern int read_index_from(struct index_state *, const char *path); |
| extern int is_index_unborn(struct index_state *); |
| extern int read_index_unmerged(struct index_state *); |
| extern int write_index(struct index_state *, int newfd); |
| extern int discard_index(struct index_state *); |
| 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 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 */ |
| #define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */ |
| #define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */ |
| #define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */ |
| extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option); |
| extern void rename_index_entry_at(struct index_state *, int pos, const char *new_name); |
| extern int remove_index_entry_at(struct index_state *, int pos); |
| extern void remove_marked_cache_entries(struct index_state *istate); |
| extern int remove_file_from_index(struct index_state *, const char *path); |
| #define ADD_CACHE_VERBOSE 1 |
| #define ADD_CACHE_PRETEND 2 |
| #define ADD_CACHE_IGNORE_ERRORS 4 |
| #define ADD_CACHE_IGNORE_REMOVAL 8 |
| #define ADD_CACHE_INTENT 16 |
| 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, 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 *); |
| |
| /* do stat comparison even if CE_VALID is true */ |
| #define CE_MATCH_IGNORE_VALID 01 |
| /* do not check the contents but report dirty on racily-clean entries */ |
| #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); |
| |
| #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 */ |
| #define REFRESH_UNMERGED 0x0002 /* allow unmerged */ |
| #define REFRESH_QUIET 0x0004 /* be quiet about it */ |
| #define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */ |
| #define REFRESH_IGNORE_SUBMODULES 0x0010 /* ignore submodules */ |
| #define REFRESH_IN_PORCELAIN 0x0020 /* user friendly output, not "needs update" */ |
| extern int refresh_index(struct index_state *, unsigned int flags, const struct pathspec *pathspec, char *seen, const char *header_msg); |
| |
| struct lock_file { |
| struct lock_file *next; |
| int fd; |
| pid_t owner; |
| char on_list; |
| char filename[PATH_MAX]; |
| }; |
| #define LOCK_DIE_ON_ERROR 1 |
| #define LOCK_NODEREF 2 |
| extern int unable_to_lock_error(const char *path, int err); |
| extern NORETURN void unable_to_lock_index_die(const char *path, int err); |
| extern int hold_lock_file_for_update(struct lock_file *, const char *path, int); |
| extern int hold_lock_file_for_append(struct lock_file *, const char *path, int); |
| extern int commit_lock_file(struct lock_file *); |
| extern void update_index_if_able(struct index_state *, struct lock_file *); |
| |
| extern int hold_locked_index(struct lock_file *, int); |
| extern int commit_locked_index(struct lock_file *); |
| extern void set_alternate_index_output(const char *); |
| extern int close_lock_file(struct lock_file *); |
| extern void rollback_lock_file(struct lock_file *); |
| 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; |
| extern int ignore_case; |
| extern int assume_unchanged; |
| extern int prefer_symlink_refs; |
| extern int log_all_ref_updates; |
| extern int warn_ambiguous_refs; |
| extern int warn_on_object_refname_ambiguity; |
| extern int shared_repository; |
| extern const char *apply_default_whitespace; |
| extern const char *apply_default_ignorewhitespace; |
| extern const char *git_attributes_file; |
| extern int zlib_compression_level; |
| extern int core_compression_level; |
| extern int core_compression_seen; |
| extern size_t packed_git_window_size; |
| extern size_t packed_git_limit; |
| extern size_t delta_base_cache_limit; |
| extern unsigned long big_file_threshold; |
| extern unsigned long pack_size_limit_cfg; |
| |
| /* |
| * Do replace refs need to be checked this run? This variable is |
| * initialized to true unless --no-replace-object is used or |
| * $GIT_NO_REPLACE_OBJECTS is set, but is set to false by some |
| * commands that do not want replace references to be active. As an |
| * optimization it is also set to false if replace references have |
| * been sought but there were none. |
| */ |
| extern int check_replace_refs; |
| |
| extern int fsync_object_files; |
| 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, |
| BRANCH_TRACK_REMOTE, |
| BRANCH_TRACK_ALWAYS, |
| BRANCH_TRACK_EXPLICIT, |
| BRANCH_TRACK_OVERRIDE |
| }; |
| |
| enum rebase_setup_type { |
| AUTOREBASE_NEVER = 0, |
| AUTOREBASE_LOCAL, |
| AUTOREBASE_REMOTE, |
| AUTOREBASE_ALWAYS |
| }; |
| |
| enum push_default_type { |
| PUSH_DEFAULT_NOTHING = 0, |
| PUSH_DEFAULT_MATCHING, |
| PUSH_DEFAULT_SIMPLE, |
| PUSH_DEFAULT_UPSTREAM, |
| PUSH_DEFAULT_CURRENT, |
| PUSH_DEFAULT_UNSPECIFIED |
| }; |
| |
| extern enum branch_track git_branch_track; |
| extern enum rebase_setup_type autorebase; |
| extern enum push_default_type push_default; |
| |
| enum object_creation_mode { |
| OBJECT_CREATION_USES_HARDLINKS = 0, |
| OBJECT_CREATION_USES_RENAMES = 1 |
| }; |
| |
| extern enum object_creation_mode object_creation_mode; |
| |
| extern char *notes_ref_name; |
| |
| extern int grafts_replace_parents; |
| |
| #define GIT_REPO_VERSION 0 |
| extern int repository_format_version; |
| extern int check_repository_format(void); |
| |
| #define MTIME_CHANGED 0x0001 |
| #define CTIME_CHANGED 0x0002 |
| #define OWNER_CHANGED 0x0004 |
| #define MODE_CHANGED 0x0008 |
| #define INODE_CHANGED 0x0010 |
| #define DATA_CHANGED 0x0020 |
| #define TYPE_CHANGED 0x0040 |
| |
| extern char *mksnpath(char *buf, size_t n, const char *fmt, ...) |
| __attribute__((format (printf, 3, 4))); |
| extern char *git_snpath(char *buf, size_t n, const char *fmt, ...) |
| __attribute__((format (printf, 3, 4))); |
| extern char *git_pathdup(const char *fmt, ...) |
| __attribute__((format (printf, 1, 2))); |
| extern char *mkpathdup(const char *fmt, ...) |
| __attribute__((format (printf, 1, 2))); |
| |
| /* 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 *git_path_submodule(const char *path, const char *fmt, ...) |
| __attribute__((format (printf, 2, 3))); |
| |
| /* |
| * Return the name of the file in the local object database that would |
| * be used to store a loose object with the specified sha1. The |
| * return value is a pointer to a statically allocated buffer that is |
| * overwritten each time the function is called. |
| */ |
| extern const char *sha1_file_name(const unsigned char *sha1); |
| |
| /* |
| * Return the name of the (local) packfile with the specified sha1 in |
| * its name. The return value is a pointer to memory that is |
| * overwritten each time this function is called. |
| */ |
| extern char *sha1_pack_name(const unsigned char *sha1); |
| |
| /* |
| * Return the name of the (local) pack index file with the specified |
| * sha1 in its name. The return value is a pointer to memory that is |
| * overwritten each time this function is called. |
| */ |
| extern char *sha1_pack_index_name(const unsigned char *sha1); |
| |
| extern const char *find_unique_abbrev(const unsigned char *sha1, int); |
| extern const unsigned char null_sha1[20]; |
| |
| static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2) |
| { |
| int i; |
| |
| for (i = 0; i < 20; i++, sha1++, sha2++) { |
| if (*sha1 != *sha2) |
| return *sha1 - *sha2; |
| } |
| |
| return 0; |
| } |
| |
| static inline int is_null_sha1(const unsigned char *sha1) |
| { |
| return !hashcmp(sha1, null_sha1); |
| } |
| |
| static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src) |
| { |
| memcpy(sha_dst, sha_src, 20); |
| } |
| static inline void hashclr(unsigned char *hash) |
| { |
| memset(hash, 0, 20); |
| } |
| |
| #define EMPTY_TREE_SHA1_HEX \ |
| "4b825dc642cb6eb9a060e54bf8d69288fbee4904" |
| #define EMPTY_TREE_SHA1_BIN_LITERAL \ |
| "\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60" \ |
| "\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04" |
| #define EMPTY_TREE_SHA1_BIN \ |
| ((const unsigned char *) EMPTY_TREE_SHA1_BIN_LITERAL) |
| |
| #define EMPTY_BLOB_SHA1_HEX \ |
| "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391" |
| #define EMPTY_BLOB_SHA1_BIN_LITERAL \ |
| "\xe6\x9d\xe2\x9b\xb2\xd1\xd6\x43\x4b\x8b" \ |
| "\x29\xae\x77\x5a\xd8\xc2\xe4\x8c\x53\x91" |
| #define EMPTY_BLOB_SHA1_BIN \ |
| ((const unsigned char *) EMPTY_BLOB_SHA1_BIN_LITERAL) |
| |
| static inline int is_empty_blob_sha1(const unsigned char *sha1) |
| { |
| return !hashcmp(sha1, EMPTY_BLOB_SHA1_BIN); |
| } |
| |
| int git_mkstemp(char *path, size_t n, const char *template); |
| |
| int git_mkstemps(char *path, size_t n, const char *template, int suffix_len); |
| |
| /* set default permissions by passing mode arguments to open(2) */ |
| int git_mkstemps_mode(char *pattern, int suffix_len, int mode); |
| int git_mkstemp_mode(char *pattern, int mode); |
| |
| /* |
| * NOTE NOTE NOTE!! |
| * |
| * PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must |
| * not be changed. Old repositories have core.sharedrepository written in |
| * numeric format, and therefore these values are preserved for compatibility |
| * reasons. |
| */ |
| enum sharedrepo { |
| PERM_UMASK = 0, |
| OLD_PERM_GROUP = 1, |
| OLD_PERM_EVERYBODY = 2, |
| PERM_GROUP = 0660, |
| PERM_EVERYBODY = 0664 |
| }; |
| int git_config_perm(const char *var, const char *value); |
| int adjust_shared_perm(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); |
| const char *enter_repo(const char *path, int strict); |
| static inline int is_absolute_path(const char *path) |
| { |
| return is_dir_sep(path[0]) || has_dos_drive_prefix(path); |
| } |
| 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); |
| int longest_ancestor_length(const char *path, struct string_list *prefixes); |
| char *strip_path_suffix(const char *path, const char *suffix); |
| int daemon_avoid_alias(const char *path); |
| int offset_1st_component(const char *path); |
| |
| /* object replacement */ |
| #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, LOOKUP_REPLACE_OBJECT); |
| } |
| |
| /* |
| * This internal function is only declared here for the benefit of |
| * lookup_replace_object(). Please do not call it directly. |
| */ |
| extern const unsigned char *do_lookup_replace_object(const unsigned char *sha1); |
| |
| /* |
| * If object sha1 should be replaced, return the replacement object's |
| * name (replaced recursively, if necessary). The return value is |
| * either sha1 or a pointer to a permanently-allocated value. When |
| * object replacement is suppressed, always return sha1. |
| */ |
| static inline const unsigned char *lookup_replace_object(const unsigned char *sha1) |
| { |
| if (!check_replace_refs) |
| 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 *); |
| extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1); |
| extern int write_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *return_sha1); |
| extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *); |
| extern int force_object_loose(const unsigned char *sha1, time_t mtime); |
| extern int git_open_noatime(const char *name); |
| extern void *map_sha1_file(const unsigned char *sha1, unsigned long *size); |
| extern int unpack_sha1_header(git_zstream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz); |
| 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; |
| |
| 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); |
| |
| extern int has_sha1_pack(const unsigned char *sha1); |
| |
| /* |
| * Return true iff we have an object named sha1, whether local or in |
| * an alternate object database, and whether packed or loose. This |
| * function does not respect replace references. |
| */ |
| extern int has_sha1_file(const unsigned char *sha1); |
| |
| /* |
| * Return true iff an alternate object database has a loose object |
| * with the specified name. This function does not respect replace |
| * references. |
| */ |
| extern int has_loose_object_nonlocal(const unsigned char *sha1); |
| |
| extern int has_pack_index(const unsigned char *sha1); |
| |
| extern void assert_sha1_type(const unsigned char *sha1, enum object_type expect); |
| |
| extern const signed char hexval_table[256]; |
| static inline unsigned int hexval(unsigned char c) |
| { |
| return hexval_table[c]; |
| } |
| |
| /* Convert to/from hex/sha1 representation */ |
| #define MINIMUM_ABBREV minimum_abbrev |
| #define DEFAULT_ABBREV default_abbrev |
| |
| struct object_context { |
| unsigned char tree[20]; |
| char path[PATH_MAX]; |
| unsigned mode; |
| }; |
| |
| #define GET_SHA1_QUIETLY 01 |
| #define GET_SHA1_COMMIT 02 |
| #define GET_SHA1_COMMITTISH 04 |
| #define GET_SHA1_TREE 010 |
| #define GET_SHA1_TREEISH 020 |
| #define GET_SHA1_BLOB 040 |
| #define GET_SHA1_ONLY_TO_DIE 04000 |
| |
| extern int get_sha1(const char *str, unsigned char *sha1); |
| extern int get_sha1_commit(const char *str, unsigned char *sha1); |
| extern int get_sha1_committish(const char *str, unsigned char *sha1); |
| extern int get_sha1_tree(const char *str, unsigned char *sha1); |
| extern int get_sha1_treeish(const char *str, unsigned char *sha1); |
| extern int get_sha1_blob(const char *str, unsigned char *sha1); |
| extern void maybe_die_on_misspelt_object_name(const char *name, const char *prefix); |
| extern int get_sha1_with_context(const char *str, unsigned flags, unsigned char *sha1, struct object_context *orc); |
| |
| typedef int each_abbrev_fn(const unsigned char *sha1, void *); |
| extern int for_each_abbrev(const char *prefix, each_abbrev_fn, void *); |
| |
| /* |
| * Try to read a SHA1 in hexadecimal format from the 40 characters |
| * starting at hex. Write the 20-byte result to sha1 in binary form. |
| * Return 0 on success. Reading stops if a NUL is encountered in the |
| * input, so it is safe to pass this function an arbitrary |
| * null-terminated string. |
| */ |
| extern int get_sha1_hex(const char *hex, unsigned char *sha1); |
| |
| extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */ |
| extern int read_ref_full(const char *refname, unsigned char *sha1, |
| int reading, int *flags); |
| extern int read_ref(const char *refname, unsigned char *sha1); |
| |
| /* |
| * Resolve a reference, recursively following symbolic refererences. |
| * |
| * Store the referred-to object's name in sha1 and return the name of |
| * the non-symbolic reference that ultimately pointed at it. The |
| * return value, if not NULL, is a pointer into either a static buffer |
| * or the input ref. |
| * |
| * If the reference cannot be resolved to an object, the behavior |
| * depends on the "reading" argument: |
| * |
| * - If reading is set, return NULL. |
| * |
| * - If reading is not set, clear sha1 and return the name of the last |
| * reference name in the chain, which will either be a non-symbolic |
| * reference or an undefined reference. If this is a prelude to |
| * "writing" to the ref, the return value is the name of the ref |
| * that will actually be created or changed. |
| * |
| * If flag is non-NULL, set the value that it points to the |
| * combination of REF_ISPACKED (if the reference was found among the |
| * packed references) and REF_ISSYMREF (if the initial reference was a |
| * symbolic reference). |
| * |
| * If ref is not a properly-formatted, normalized reference, return |
| * NULL. If more than MAXDEPTH recursive symbolic lookups are needed, |
| * give up and return NULL. |
| * |
| * errno is sometimes set on errors, but not always. |
| */ |
| extern const char *resolve_ref_unsafe(const char *ref, unsigned char *sha1, int reading, int *flag); |
| extern char *resolve_refdup(const char *ref, unsigned char *sha1, int reading, int *flag); |
| |
| extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref); |
| 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); |
| |
| /* |
| * 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); |
| |
| extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2); |
| extern int df_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); |
| extern int cache_name_stage_compare(const char *name1, int len1, int stage1, const char *name2, int len2, int stage2); |
| |
| extern void *read_object_with_reference(const unsigned char *sha1, |
| const char *required_type, |
| unsigned long *size, |
| unsigned char *sha1_ret); |
| |
| extern struct object *peel_to_type(const char *name, int namelen, |
| struct object *o, enum object_type); |
| |
| enum date_mode { |
| DATE_NORMAL = 0, |
| DATE_RELATIVE, |
| DATE_SHORT, |
| DATE_LOCAL, |
| DATE_ISO8601, |
| DATE_RFC2822, |
| DATE_RAW |
| }; |
| |
| const char *show_date(unsigned long time, int timezone, enum date_mode mode); |
| 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 *); |
| unsigned long approxidate_relative(const char *date, const struct timeval *now); |
| enum date_mode parse_date_format(const char *format); |
| int date_overflows(unsigned long date); |
| |
| #define IDENT_STRICT 1 |
| #define IDENT_NO_DATE 2 |
| #define IDENT_NO_NAME 4 |
| extern const char *git_author_info(int); |
| extern const char *git_committer_info(int); |
| extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int); |
| extern const char *fmt_name(const char *name, const char *email); |
| extern const char *ident_default_email(void); |
| extern const char *git_editor(void); |
| extern const char *git_pager(int stdout_is_tty); |
| extern int git_ident_config(const char *, const char *, void *); |
| |
| struct ident_split { |
| const char *name_begin; |
| const char *name_end; |
| const char *mail_begin; |
| const char *mail_end; |
| const char *date_begin; |
| const char *date_end; |
| const char *tz_begin; |
| const char *tz_end; |
| }; |
| /* |
| * Signals an success with 0, but time part of the result may be NULL |
| * if the input lacks timestamp and zone |
| */ |
| extern int split_ident_line(struct ident_split *, const char *, int); |
| |
| /* |
| * Compare split idents for equality or strict ordering. Note that we |
| * compare only the ident part of the line, ignoring any timestamp. |
| * |
| * Because there are two fields, we must choose one as the primary key; we |
| * currently arbitrarily pick the email. |
| */ |
| extern int ident_cmp(const struct ident_split *, const struct ident_split *); |
| |
| struct checkout { |
| const char *base_dir; |
| int base_dir_len; |
| unsigned force:1, |
| quiet:1, |
| not_new:1, |
| 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 { |
| char path[PATH_MAX + 1]; |
| int len; |
| int flags; |
| int track_flags; |
| int prefix_len_stat_func; |
| }; |
| |
| extern int has_symlink_leading_path(const char *name, int len); |
| extern int threaded_has_symlink_leading_path(struct cache_def *, const char *, int); |
| extern int check_leading_path(const char *name, int len); |
| extern int has_dirs_only_path(const char *name, int len, int prefix_len); |
| extern void schedule_dir_for_removal(const char *name, int len); |
| extern void remove_scheduled_dirs(void); |
| |
| extern struct alternate_object_database { |
| struct alternate_object_database *next; |
| char *name; |
| char base[FLEX_ARRAY]; /* more */ |
| } *alt_odb_list; |
| extern void prepare_alt_odb(void); |
| extern void read_info_alternates(const char * relative_base, int depth); |
| extern void add_to_alternates_file(const char *reference); |
| typedef int alt_odb_fn(struct alternate_object_database *, void *); |
| extern void foreach_alt_odb(alt_odb_fn, void*); |
| |
| struct pack_window { |
| struct pack_window *next; |
| unsigned char *base; |
| off_t offset; |
| size_t len; |
| unsigned int last_used; |
| unsigned int inuse_cnt; |
| }; |
| |
| extern struct packed_git { |
| struct packed_git *next; |
| struct pack_window *windows; |
| off_t pack_size; |
| const void *index_data; |
| size_t index_size; |
| uint32_t num_objects; |
| uint32_t num_bad_objects; |
| unsigned char *bad_object_sha1; |
| int index_version; |
| time_t mtime; |
| int pack_fd; |
| unsigned pack_local:1, |
| pack_keep:1, |
| do_not_close:1; |
| unsigned char sha1[20]; |
| /* something like ".git/objects/pack/xxxxx.pack" */ |
| char pack_name[FLEX_ARRAY]; /* more */ |
| } *packed_git; |
| |
| struct pack_entry { |
| off_t offset; |
| unsigned char sha1[20]; |
| struct packed_git *p; |
| }; |
| |
| 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); |
| |
| extern struct packed_git *find_sha1_pack(const unsigned char *sha1, |
| struct packed_git *packs); |
| |
| extern void pack_report(void); |
| |
| /* |
| * mmap the index file for the specified packfile (if it is not |
| * already mmapped). Return 0 on success. |
| */ |
| extern int open_pack_index(struct packed_git *); |
| |
| /* |
| * munmap the index file for the specified packfile (if it is |
| * currently mmapped). |
| */ |
| extern void close_pack_index(struct packed_git *); |
| |
| extern unsigned char *use_pack(struct packed_git *, struct pack_window **, off_t, unsigned long *); |
| extern void close_pack_windows(struct packed_git *); |
| extern void unuse_pack(struct pack_window **); |
| extern void free_pack_by_name(const char *); |
| extern void clear_delta_base_cache(void); |
| extern struct packed_git *add_packed_git(const char *, int, int); |
| |
| /* |
| * Return the SHA-1 of the nth object within the specified packfile. |
| * Open the index if it is not already open. The return value points |
| * at the SHA-1 within the mmapped index. Return NULL if there is an |
| * error. |
| */ |
| extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t n); |
| |
| /* |
| * Return the offset of the nth object within the specified packfile. |
| * The index must already be opened. |
| */ |
| extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t n); |
| |
| /* |
| * If the object named sha1 is present in the specified packfile, |
| * return its offset within the packfile; otherwise, return 0. |
| */ |
| extern off_t find_pack_entry_one(const unsigned char *sha1, struct packed_git *); |
| |
| extern int is_pack_valid(struct packed_git *); |
| extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *); |
| extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep); |
| extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t); |
| extern int unpack_object_header(struct packed_git *, struct pack_window **, off_t *, unsigned long *); |
| |
| struct object_info { |
| /* Request */ |
| enum object_type *typep; |
| unsigned long *sizep; |
| unsigned long *disk_sizep; |
| unsigned char *delta_base_sha1; |
| |
| /* Response */ |
| enum { |
| OI_CACHED, |
| OI_LOOSE, |
| OI_PACKED, |
| OI_DBCACHED |
| } whence; |
| union { |
| /* |
| * struct { |
| * ... Nothing to expose in this case |
| * } cached; |
| * struct { |
| * ... Nothing to expose in this case |
| * } loose; |
| */ |
| struct { |
| struct packed_git *pack; |
| off_t offset; |
| unsigned int is_delta; |
| } packed; |
| } u; |
| }; |
| extern int sha1_object_info_extended(const unsigned char *, struct object_info *, unsigned flags); |
| |
| /* Dumb servers support */ |
| extern int update_server_info(int); |
| |
| /* git_config_parse_key() returns these negated: */ |
| #define CONFIG_INVALID_KEY 1 |
| #define CONFIG_NO_SECTION_OR_NAME 2 |
| /* git_config_set(), git_config_set_multivar() return the above or these: */ |
| #define CONFIG_NO_LOCK -1 |
| #define CONFIG_INVALID_FILE 3 |
| #define CONFIG_NO_WRITE 4 |
| #define CONFIG_NOTHING_SET 5 |
| #define CONFIG_INVALID_PATTERN 6 |
| #define CONFIG_GENERIC_ERROR 7 |
| |
| struct git_config_source { |
| unsigned int use_stdin:1; |
| const char *file; |
| const char *blob; |
| }; |
| |
| typedef int (*config_fn_t)(const char *, const char *, void *); |
| extern int git_default_config(const char *, const char *, void *); |
| extern int git_config_from_file(config_fn_t fn, const char *, void *); |
| extern int git_config_from_buf(config_fn_t fn, const char *name, |
| const char *buf, size_t len, void *data); |
| extern void git_config_push_parameter(const char *text); |
| extern int git_config_from_parameters(config_fn_t fn, void *data); |
| extern int git_config(config_fn_t fn, void *); |
| extern int git_config_with_options(config_fn_t fn, void *, |
| struct git_config_source *config_source, |
| int respect_includes); |
| extern int git_config_early(config_fn_t fn, void *, const char *repo_config); |
| extern int git_parse_ulong(const char *, unsigned long *); |
| extern int git_config_int(const char *, const char *); |
| extern int64_t git_config_int64(const char *, const char *); |
| extern unsigned long git_config_ulong(const char *, const char *); |
| extern int git_config_bool_or_int(const char *, const char *, int *); |
| extern int git_config_bool(const char *, const char *); |
| extern int git_config_maybe_bool(const char *, const char *); |
| extern int git_config_string(const char **, const char *, const char *); |
| extern int git_config_pathname(const char **, const char *, const char *); |
| extern int git_config_set_in_file(const char *, const char *, const char *); |
| extern int git_config_set(const char *, const char *); |
| extern int git_config_parse_key(const char *, char **, int *); |
| extern int git_config_set_multivar(const char *, const char *, const char *, int); |
| extern int git_config_set_multivar_in_file(const char *, const char *, const char *, const char *, int); |
| extern int git_config_rename_section(const char *, const char *); |
| extern int git_config_rename_section_in_file(const char *, const char *, const char *); |
| extern const char *git_etc_gitconfig(void); |
| extern int check_repository_format_version(const char *var, const char *value, void *cb); |
| 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); |
| |
| extern int git_config_parse_parameter(const char *, config_fn_t fn, void *data); |
| |
| struct config_include_data { |
| int depth; |
| config_fn_t fn; |
| void *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 *); |
| extern int copy_fd(int ifd, int ofd); |
| extern int copy_file(const char *dst, const char *src, int mode); |
| extern int copy_file_with_time(const char *dst, const char *src, int mode); |
| extern void write_or_die(int fd, const void *buf, size_t count); |
| extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg); |
| extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg); |
| extern void fsync_or_die(int fd, const char *); |
| |
| extern ssize_t read_in_full(int fd, void *buf, size_t count); |
| extern ssize_t write_in_full(int fd, const void *buf, size_t count); |
| static inline ssize_t write_str_in_full(int fd, const char *str) |
| { |
| return write_in_full(fd, str, strlen(str)); |
| } |
| |
| /* pager.c */ |
| extern void setup_pager(void); |
| extern const char *pager_program; |
| extern int pager_in_use(void); |
| extern int pager_use_color; |
| extern int term_columns(void); |
| extern int decimal_width(int); |
| extern int check_pager_config(const char *cmd); |
| |
| extern const char *editor_program; |
| extern const char *askpass_program; |
| extern const char *excludes_file; |
| |
| /* base85 */ |
| int decode_85(char *dst, const char *line, int linelen); |
| void encode_85(char *buf, const unsigned char *data, int bytes); |
| |
| /* alloc.c */ |
| extern void *alloc_blob_node(void); |
| extern void *alloc_tree_node(void); |
| extern void *alloc_commit_node(void); |
| extern void *alloc_tag_node(void); |
| extern void *alloc_object_node(void); |
| extern void alloc_report(void); |
| |
| /* trace.c */ |
| __attribute__((format (printf, 1, 2))) |
| extern void trace_printf(const char *format, ...); |
| __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); |
| |
| /* add */ |
| /* |
| * return 0 if success, 1 - if addition of a file failed and |
| * ADD_FILES_IGNORE_ERRORS was specified in flags |
| */ |
| int add_files_to_cache(const char *prefix, const struct pathspec *pathspec, int flags); |
| |
| /* diff.c */ |
| extern int diff_auto_refresh_index; |
| |
| /* match-trees.c */ |
| void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int); |
| void shift_tree_by(const unsigned char *, const unsigned char *, unsigned char *, const char *); |
| |
| /* |
| * whitespace rules. |
| * used by both diff and apply |
| * last two digits are tab width |
| */ |
| #define WS_BLANK_AT_EOL 0100 |
| #define WS_SPACE_BEFORE_TAB 0200 |
| #define WS_INDENT_WITH_NON_TAB 0400 |
| #define WS_CR_AT_EOL 01000 |
| #define WS_BLANK_AT_EOF 02000 |
| #define WS_TAB_IN_INDENT 04000 |
| #define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF) |
| #define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB|8) |
| #define WS_TAB_WIDTH_MASK 077 |
| extern unsigned whitespace_rule_cfg; |
| extern unsigned whitespace_rule(const char *); |
| extern unsigned parse_whitespace_rule(const char *); |
| extern unsigned ws_check(const char *line, int len, unsigned ws_rule); |
| extern void ws_check_emit(const char *line, int len, unsigned ws_rule, FILE *stream, const char *set, const char *reset, const char *ws); |
| extern char *whitespace_error_string(unsigned ws); |
| extern void ws_fix_copy(struct strbuf *, const char *, int, unsigned, int *); |
| extern int ws_blank_line(const char *line, int len, unsigned ws_rule); |
| #define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK) |
| |
| /* ls-files */ |
| int report_path_error(const char *ps_matched, const struct pathspec *pathspec, const char *prefix); |
| void overlay_tree_on_cache(const char *tree_name, const char *prefix); |
| |
| char *alias_lookup(const char *alias); |
| int split_cmdline(char *cmdline, const char ***argv); |
| /* Takes a negative value returned by split_cmdline */ |
| const char *split_cmdline_strerror(int cmdline_errno); |
| |
| /* git.c */ |
| struct startup_info { |
| int have_repository; |
| const char *prefix; |
| }; |
| extern struct startup_info *startup_info; |
| |
| /* merge.c */ |
| struct commit_list; |
| int try_merge_command(const char *strategy, size_t xopts_nr, |
| const char **xopts, struct commit_list *common, |
| const char *head_arg, struct commit_list *remotes); |
| int checkout_fast_forward(const unsigned char *from, |
| const unsigned char *to, |
| int overwrite_ignore); |
| |
| |
| 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); |
| |
| int versioncmp(const char *s1, const char *s2); |
| |
| #endif /* CACHE_H */ |