diff options
Diffstat (limited to 'cache.h')
| -rw-r--r-- | cache.h | 473 |
1 files changed, 1 insertions, 472 deletions
@@ -4,108 +4,9 @@ #include "git-compat-util.h" #include "strbuf.h" #include "hashmap.h" -#include "list.h" -#include "advice.h" -#include "gettext.h" -#include "convert.h" -#include "trace.h" -#include "trace2.h" -#include "string-list.h" -#include "pack-revindex.h" -#include "hash.h" -#include "path.h" #include "pathspec.h" #include "object.h" -#include "oid-array.h" -#include "repository.h" #include "statinfo.h" -#include "mem-pool.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 - */ -#define S_IFGITLINK 0160000 -#define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK) - -/* - * Some mode bits are also used internally for computations. - * - * They *must* not overlap with any valid modes, and they *must* not be emitted - * to outside world - i.e. appear on disk or network. In other words, it's just - * temporary fields, which we internally use, but they have to stay in-house. - * - * ( such approach is valid, as standard S_IF* fits into 16 bits, and in Git - * codebase mode is `unsigned int` which is assumed to be at least 32 bits ) - */ - -/* used internally in tree-diff */ -#define S_DIFFTREE_IFXMIN_NEQ 0x80000000 - - -/* - * 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 @@ -186,11 +87,8 @@ struct cache_entry { #error "CE_EXTENDED_FLAGS out of range" #endif -#define S_ISSPARSEDIR(m) ((m) == S_IFDIR) - /* Forward structure decls */ struct pathspec; -struct child_process; struct tree; /* @@ -228,17 +126,6 @@ static inline unsigned create_ce_flags(unsigned stage) #define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE) #define ce_intent_to_add(ce) ((ce)->ce_flags & CE_INTENT_TO_ADD) -#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_ISSPARSEDIR(mode)) - return S_IFDIR; - 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) { @@ -265,16 +152,6 @@ static inline int ce_to_dtype(const struct cache_entry *ce) 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; -} static inline int ce_path_match(struct index_state *istate, const struct cache_entry *ce, @@ -445,13 +322,6 @@ void prefetch_cache_entries(const struct index_state *istate, extern struct index_state the_index; #endif -static inline enum object_type object_type(unsigned int mode) -{ - return S_ISDIR(mode) ? OBJ_TREE : - S_ISGITLINK(mode) ? OBJ_COMMIT : - OBJ_BLOB; -} - #define INIT_DB_QUIET 0x0001 #define INIT_DB_EXIST_OK 0x0002 @@ -626,13 +496,6 @@ int has_racy_timestamp(struct index_state *istate); int ie_match_stat(struct index_state *, const struct cache_entry *, struct stat *, unsigned int); int ie_modified(struct index_state *, const struct cache_entry *, struct stat *, unsigned int); -#define HASH_WRITE_OBJECT 1 -#define HASH_FORMAT_CHECK 2 -#define HASH_RENORMALIZE 4 -#define HASH_SILENT 8 -int index_fd(struct index_state *istate, struct object_id *oid, int fd, struct stat *st, enum object_type type, const char *path, unsigned flags); -int index_path(struct index_state *istate, struct object_id *oid, 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. @@ -684,8 +547,6 @@ void set_alternate_index_output(const char *); extern int verify_index_checksum; extern int verify_ce_order; -extern int quote_path_fully; - #define MTIME_CHANGED 0x0001 #define CTIME_CHANGED 0x0002 #define OWNER_CHANGED 0x0004 @@ -694,307 +555,7 @@ extern int quote_path_fully; #define DATA_CHANGED 0x0020 #define TYPE_CHANGED 0x0040 -/* - * Return an abbreviated sha1 unique within this repository's object database. - * The result will be at least `len` characters long, and will be NUL - * terminated. - * - * The non-`_r` version returns a static buffer which remains valid until 4 - * more calls to repo_find_unique_abbrev are made. - * - * The `_r` variant writes to a buffer supplied by the caller, which must be at - * least `GIT_MAX_HEXSZ + 1` bytes. The return value is the number of bytes - * written (excluding the NUL terminator). - * - * Note that while this version avoids the static buffer, it is not fully - * reentrant, as it calls into other non-reentrant git code. - */ -const char *repo_find_unique_abbrev(struct repository *r, const struct object_id *oid, int len); -int repo_find_unique_abbrev_r(struct repository *r, char *hex, const struct object_id *oid, int len); - -/* - * 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. On error, set errno to describe the - * problem. - * - * 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. - * - * safe_create_leading_directories() temporarily changes path while it - * is working but restores it before returning. - * safe_create_leading_directories_const() doesn't modify path, even - * temporarily. Both these variants adjust the permissions of the - * created directories to honor core.sharedRepository, so they are best - * suited for files inside the git dir. For working tree files, use - * safe_create_leading_directories_no_share() instead, as it ignores - * the core.sharedRepository setting. - */ -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); -enum scld_error safe_create_leading_directories_no_share(char *path); - -int mkdir_in_gitdir(const char *path); - -int git_open_cloexec(const char *name, int flags); -#define git_open(name) git_open_cloexec(name, O_RDONLY) - -/** - * unpack_loose_header() initializes the data stream needed to unpack - * a loose object header. - * - * Returns: - * - * - ULHR_OK on success - * - ULHR_BAD on error - * - ULHR_TOO_LONG if the header was too long - * - * It will only parse up to MAX_HEADER_LEN bytes unless an optional - * "hdrbuf" argument is non-NULL. This is intended for use with - * OBJECT_INFO_ALLOW_UNKNOWN_TYPE to extract the bad type for (error) - * reporting. The full header will be extracted to "hdrbuf" for use - * with parse_loose_header(), ULHR_TOO_LONG will still be returned - * from this function to indicate that the header was too long. - */ -enum unpack_loose_header_result { - ULHR_OK, - ULHR_BAD, - ULHR_TOO_LONG, -}; -enum unpack_loose_header_result unpack_loose_header(git_zstream *stream, - unsigned char *map, - unsigned long mapsize, - void *buffer, - unsigned long bufsiz, - struct strbuf *hdrbuf); - -/** - * parse_loose_header() parses the starting "<type> <len>\0" of an - * object. If it doesn't follow that format -1 is returned. To check - * the validity of the <type> populate the "typep" in the "struct - * object_info". It will be OBJ_BAD if the object type is unknown. The - * parsed <len> can be retrieved via "oi->sizep", and from there - * passed to unpack_loose_rest(). - */ -struct object_info; -int parse_loose_header(const char *hdr, struct object_info *oi); - -/** - * With in-core object data in "buf", rehash it to make sure the - * object name actually matches "oid" to detect object corruption. - * - * A negative value indicates an error, usually that the OID is not - * what we expected, but it might also indicate another error. - */ -int check_object_signature(struct repository *r, const struct object_id *oid, - void *map, unsigned long size, - enum object_type type); - -/** - * A streaming version of check_object_signature(). - * Try reading the object named with "oid" using - * the streaming interface and rehash it to do the same. - */ -int stream_object_signature(struct repository *r, const struct object_id *oid); - -int finalize_object_file(const char *tmpfile, const char *filename); - -/* Helper to check and "touch" a file */ -int check_and_freshen_file(const char *fn, int freshen); - -/* Convert to/from hex/sha1 representation */ -#define MINIMUM_ABBREV minimum_abbrev -#define DEFAULT_ABBREV default_abbrev - -/* used when the code does not know or care what the default abbrev is */ -#define FALLBACK_DEFAULT_ABBREV 7 - -struct object_context { - unsigned short mode; - /* - * symlink_path is only used by get_tree_entry_follow_symlinks, - * and only for symlinks that point outside the repository. - */ - struct strbuf symlink_path; - /* - * If GET_OID_RECORD_PATH is set, this will record path (if any) - * found when resolving the name. The caller is responsible for - * releasing the memory. - */ - char *path; -}; - -int repo_get_oid(struct repository *r, const char *str, struct object_id *oid); -__attribute__((format (printf, 2, 3))) -int get_oidf(struct object_id *oid, const char *fmt, ...); -int repo_get_oid_commit(struct repository *r, const char *str, struct object_id *oid); -int repo_get_oid_committish(struct repository *r, const char *str, struct object_id *oid); -int repo_get_oid_tree(struct repository *r, const char *str, struct object_id *oid); -int repo_get_oid_treeish(struct repository *r, const char *str, struct object_id *oid); -int repo_get_oid_blob(struct repository *r, const char *str, struct object_id *oid); -int repo_get_oid_mb(struct repository *r, const char *str, struct object_id *oid); -void maybe_die_on_misspelt_object_name(struct repository *repo, - const char *name, - const char *prefix); -enum get_oid_result get_oid_with_context(struct repository *repo, const char *str, - unsigned flags, struct object_id *oid, - struct object_context *oc); - -typedef int each_abbrev_fn(const struct object_id *oid, void *); -int repo_for_each_abbrev(struct repository *r, const char *prefix, each_abbrev_fn, void *); - -int set_disambiguate_hint_config(const char *var, const char *value); - -/* - * This reads short-hand syntax that not only evaluates to a commit - * object name, but also can act as if the end user spelled the name - * of the branch from the command line. - * - * - "@{-N}" finds the name of the Nth previous branch we were on, and - * places the name of the branch in the given buf and returns the - * number of characters parsed if successful. - * - * - "<branch>@{upstream}" finds the name of the other ref that - * <branch> is configured to merge with (missing <branch> defaults - * to the current branch), and places the name of the branch in the - * given buf and returns the number of characters parsed if - * successful. - * - * If the input is not of the accepted format, it returns a negative - * number to signal an error. - * - * If the input was ok but there are not N branch switches in the - * reflog, it returns 0. - */ -#define INTERPRET_BRANCH_LOCAL (1<<0) -#define INTERPRET_BRANCH_REMOTE (1<<1) -#define INTERPRET_BRANCH_HEAD (1<<2) -struct interpret_branch_name_options { - /* - * If "allowed" is non-zero, it is a treated as a bitfield of allowable - * expansions: local branches ("refs/heads/"), remote branches - * ("refs/remotes/"), or "HEAD". If no "allowed" bits are set, any expansion is - * allowed, even ones to refs outside of those namespaces. - */ - unsigned allowed; - - /* - * If ^{upstream} or ^{push} (or equivalent) is requested, and the - * branch in question does not have such a reference, return -1 instead - * of die()-ing. - */ - unsigned nonfatal_dangling_mark : 1; -}; -int repo_interpret_branch_name(struct repository *r, - const char *str, int len, - struct strbuf *buf, - const struct interpret_branch_name_options *options); - -int base_name_compare(const char *name1, size_t len1, int mode1, - const char *name2, size_t len2, int mode2); -int df_name_compare(const char *name1, size_t len1, int mode1, - const char *name2, size_t len2, int mode2); -int name_compare(const char *name1, size_t len1, const char *name2, size_t len2); -int cache_name_stage_compare(const char *name1, int len1, int stage1, const char *name2, int len2, int stage2); - -void *read_object_with_reference(struct repository *r, - const struct object_id *oid, - enum object_type required_type, - unsigned long *size, - struct object_id *oid_ret); - -struct object *repo_peel_to_type(struct repository *r, - const char *name, int namelen, - struct object *o, enum object_type); - -const char *git_editor(void); -const char *git_sequence_editor(void); -const char *git_pager(int stdout_is_tty); -int is_terminal_dumb(void); - -struct cache_def { - struct strbuf path; - int flags; - int track_flags; - int prefix_len_stat_func; -}; -#define CACHE_DEF_INIT { \ - .path = STRBUF_INIT, \ -} -static inline void cache_def_clear(struct cache_def *cache) -{ - strbuf_release(&cache->path); -} - -int has_symlink_leading_path(const char *name, int len); -int threaded_has_symlink_leading_path(struct cache_def *, const char *, int); -int check_leading_path(const char *name, int len, int warn_on_lstat_err); -int has_dirs_only_path(const char *name, int len, int prefix_len); -void invalidate_lstat_cache(void); -void schedule_dir_for_removal(const char *name, int len); -void remove_scheduled_dirs(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; -}; - -struct pack_entry { - off_t offset; - struct packed_git *p; -}; - -/* - * Set this to 0 to prevent oid_object_info_extended() from fetching missing - * blobs. This has a difference only if extensions.partialClone is set. - * - * Its default value is 1. - */ -extern int fetch_if_missing; - -/* Dumb servers support */ -int update_server_info(int); - -extern const char *git_mailmap_file; -extern const char *git_mailmap_blob; - -#define COPY_READ_ERROR (-2) -#define COPY_WRITE_ERROR (-3) -int copy_fd(int ifd, int ofd); -int copy_file(const char *dst, const char *src, int mode); -int copy_file_with_time(const char *dst, const char *src, int mode); - -/* pager.c */ -void setup_pager(void); -int pager_in_use(void); -extern int pager_use_color; -int term_columns(void); -void term_clear_line(void); -int decimal_width(uintmax_t); -int check_pager_config(const char *cmd); -void prepare_pager_args(struct child_process *, const char *pager); - -/* base85 */ -int decode_85(char *dst, const char *line, int linelen); -void encode_85(char *buf, const unsigned char *data, int bytes); - -/* pkt-line.c */ -void packet_trace_identity(const char *prog); +int cmp_cache_name_compare(const void *a_, const void *b_); /* add */ /* @@ -1006,36 +567,6 @@ int add_files_to_cache(const char *prefix, const struct pathspec *pathspec, int /* diff.c */ extern int diff_auto_refresh_index; -/* match-trees.c */ -void shift_tree(struct repository *, const struct object_id *, const struct object_id *, struct object_id *, int); -void shift_tree_by(struct repository *, const struct object_id *, const struct object_id *, struct object_id *, 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 -/* All WS_* -- when extended, adapt diff.c emit_symbol */ -#define WS_RULE_MASK 07777 -extern unsigned whitespace_rule_cfg; -unsigned whitespace_rule(struct index_state *, const char *); -unsigned parse_whitespace_rule(const char *); -unsigned ws_check(const char *line, int len, unsigned ws_rule); -void ws_check_emit(const char *line, int len, unsigned ws_rule, FILE *stream, const char *set, const char *reset, const char *ws); -char *whitespace_error_string(unsigned ws); -void ws_fix_copy(struct strbuf *, const char *, int, unsigned, int *); -int ws_blank_line(const char *line, int len); -#define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK) - /* ls-files */ void overlay_tree_on_index(struct index_state *istate, const char *tree_name, const char *prefix); @@ -1081,6 +612,4 @@ int stat_validity_check(struct stat_validity *sv, const char *path); */ void stat_validity_update(struct stat_validity *sv, int fd); -int versioncmp(const char *s1, const char *s2); - #endif /* CACHE_H */ |