From: Junio C Hamano Date: Fri, 18 Aug 2017 20:52:55 +0000 (-0700) Subject: Merge branch 'jk/hashcmp-memcmp' into next X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/27c4aa55209ad73d908b39c5eccaaa5a644083e3?hp=-c Merge branch 'jk/hashcmp-memcmp' into next Code clean-up. * jk/hashcmp-memcmp: hashcmp: use memcmp instead of open-coded loop --- 27c4aa55209ad73d908b39c5eccaaa5a644083e3 diff --combined cache.h index 3c44a25ffe,5688b263e4..f99404f89a --- a/cache.h +++ b/cache.h @@@ -10,10 -10,8 +10,10 @@@ #include "trace.h" #include "string-list.h" #include "pack-revindex.h" +#include "hash.h" +#include "path.h" +#include "sha1-array.h" -#include SHA1_HEADER #ifndef platform_SHA_CTX /* * platform's underlying implementation of SHA-1; could be OpenSSL, @@@ -68,12 -66,8 +68,12 @@@ unsigned long git_deflate_bound(git_zst #define GIT_SHA1_RAWSZ 20 #define GIT_SHA1_HEXSZ (2 * GIT_SHA1_RAWSZ) +/* The length in byte and in hex digits of the largest possible hash value. */ +#define GIT_MAX_RAWSZ GIT_SHA1_RAWSZ +#define GIT_MAX_HEXSZ GIT_SHA1_HEXSZ + struct object_id { - unsigned char hash[GIT_SHA1_RAWSZ]; + unsigned char hash[GIT_MAX_RAWSZ]; }; #if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT) @@@ -349,7 -343,6 +349,7 @@@ struct index_state extern struct index_state the_index; /* Name hashing */ +extern int test_lazy_init_name_hash(struct index_state *istate, int try_threaded); 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); @@@ -432,7 -425,6 +432,7 @@@ static inline enum object_type object_t #define GITATTRIBUTES_FILE ".gitattributes" #define INFOATTRIBUTES_FILE "info/attributes" #define ATTRIBUTE_MACRO_PREFIX "[attr]" +#define GITMODULES_FILE ".gitmodules" #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" @@@ -464,8 -456,6 +464,8 @@@ */ extern const char * const local_repo_env[]; +extern void setup_git_env(void); + /* * Returns true iff we have a configured git repository (either via * setup_git_directory, or in the environment via $GIT_DIR). @@@ -528,33 -518,11 +528,33 @@@ extern void set_git_work_tree(const cha #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES" extern void setup_work_tree(void); +/* + * Find the commondir and gitdir of the repository that contains the current + * working directory, without changing the working directory or other global + * state. The result is appended to commondir and gitdir. If the discovered + * gitdir does not correspond to a worktree, then 'commondir' and 'gitdir' will + * both have the same result appended to the buffer. The return value is + * either 0 upon success and non-zero if no repository was found. + */ +extern int discover_git_directory(struct strbuf *commondir, + struct strbuf *gitdir); 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); + +/* + * Concatenate "prefix" (if len is non-zero) and "path", with no + * connecting characters (so "prefix" should end with a "/"). + * Unlike prefix_path, this should be used if the named file does + * not have to interact with index entry; i.e. name of a random file + * on the filesystem. + * + * The return value is always a newly allocated string (even if the + * prefix was empty). + */ +extern char *prefix_filename(const char *prefix, const char *path); + extern int check_filename(const char *prefix, const char *name); extern void verify_filename(const char *prefix, const char *name, @@@ -604,10 -572,8 +604,10 @@@ extern int read_index_unmerged(struct i #define CLOSE_LOCK (1 << 1) extern int write_locked_index(struct index_state *, struct lock_file *lock, unsigned flags); extern int discard_index(struct index_state *); +extern void move_index_extensions(struct index_state *dst, struct index_state *src); extern int unmerged_index(const struct index_state *); extern int verify_path(const char *path); +extern int strcmp_offset(const char *s1, const char *s2, size_t *first_change); extern int index_dir_exists(struct index_state *istate, const char *name, int namelen); extern void adjust_dirname_case(struct index_state *istate, char *name); extern struct cache_entry *index_file_exists(struct index_state *istate, const char *name, int namelen, int igncase); @@@ -719,8 -685,6 +719,8 @@@ extern void update_index_if_able(struc extern int hold_locked_index(struct lock_file *, int); extern void set_alternate_index_output(const char *); +extern int verify_index_checksum; + /* Environment bits from configuration mechanism */ extern int trust_executable_bit; extern int trust_ctime; @@@ -773,6 -737,7 +773,6 @@@ extern int core_apply_sparse_checkout extern int precomposed_unicode; extern int protect_hfs; extern int protect_ntfs; -extern int git_db_env, git_index_env, git_graft_env, git_common_dir_env; /* * Include broken refs in all ref iterations, which will @@@ -894,6 -859,64 +894,6 @@@ extern void check_repository_format(voi #define DATA_CHANGED 0x0020 #define TYPE_CHANGED 0x0040 -/* - * Return a statically allocated filename, either generically (mkpath), in - * the repository directory (git_path), or in a submodule's repository - * directory (git_path_submodule). In all cases, note that the result - * may be overwritten by another call to _any_ of the functions. Consider - * using the safer "dup" or "strbuf" formats below (in some cases, the - * unsafe versions have already been removed). - */ -extern const char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2))); -extern const char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2))); -extern const char *git_common_path(const char *fmt, ...) __attribute__((format (printf, 1, 2))); - -extern char *mksnpath(char *buf, size_t n, const char *fmt, ...) - __attribute__((format (printf, 3, 4))); -extern void strbuf_git_path(struct strbuf *sb, const char *fmt, ...) - __attribute__((format (printf, 2, 3))); -extern void strbuf_git_common_path(struct strbuf *sb, const char *fmt, ...) - __attribute__((format (printf, 2, 3))); -extern char *git_path_buf(struct strbuf *buf, const char *fmt, ...) - __attribute__((format (printf, 2, 3))); -extern int strbuf_git_path_submodule(struct strbuf *sb, const char *path, - 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))); -extern char *git_pathdup_submodule(const char *path, const char *fmt, ...) - __attribute__((format (printf, 2, 3))); - -extern void report_linked_checkout_garbage(void); - -/* - * You can define a static memoized git path like: - * - * static GIT_PATH_FUNC(git_path_foo, "FOO"); - * - * or use one of the global ones below. - */ -#define GIT_PATH_FUNC(func, filename) \ - const char *func(void) \ - { \ - static char *ret; \ - if (!ret) \ - ret = git_pathdup(filename); \ - return ret; \ - } - -const char *git_path_cherry_pick_head(void); -const char *git_path_revert_head(void); -const char *git_path_squash_msg(void); -const char *git_path_merge_msg(void); -const char *git_path_merge_rr(void); -const char *git_path_merge_mode(void); -const char *git_path_merge_head(void); -const char *git_path_fetch_head(void); -const char *git_path_shallow(void); - /* * 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 @@@ -934,19 -957,12 +934,12 @@@ extern char *sha1_pack_index_name(cons extern const char *find_unique_abbrev(const unsigned char *sha1, int len); extern int find_unique_abbrev_r(char *hex, const unsigned char *sha1, int len); -extern const unsigned char null_sha1[GIT_SHA1_RAWSZ]; +extern const unsigned char null_sha1[GIT_MAX_RAWSZ]; extern const struct object_id null_oid; static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2) { - int i; - - for (i = 0; i < GIT_SHA1_RAWSZ; i++, sha1++, sha2++) { - if (*sha1 != *sha2) - return *sha1 - *sha2; - } - - return 0; + return memcmp(sha1, sha2, GIT_SHA1_RAWSZ); } static inline int oidcmp(const struct object_id *oid1, const struct object_id *oid2) @@@ -974,13 -990,6 +967,13 @@@ static inline void oidcpy(struct object hashcpy(dst->hash, src->hash); } +static inline struct object_id *oiddup(const struct object_id *src) +{ + struct object_id *dst = xmalloc(sizeof(struct object_id)); + oidcpy(dst, src); + return dst; +} + static inline void hashclr(unsigned char *hash) { memset(hash, 0, GIT_SHA1_RAWSZ); @@@ -1053,9 -1062,8 +1046,9 @@@ 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. + * 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 @@@ -1079,51 -1087,8 +1072,51 @@@ enum scld_error enum scld_error safe_create_leading_directories(char *path); enum scld_error safe_create_leading_directories_const(const char *path); +/* + * Callback function for raceproof_create_file(). This function is + * expected to do something that makes dirname(path) permanent despite + * the fact that other processes might be cleaning up empty + * directories at the same time. Usually it will create a file named + * path, but alternatively it could create another file in that + * directory, or even chdir() into that directory. The function should + * return 0 if the action was completed successfully. On error, it + * should return a nonzero result and set errno. + * raceproof_create_file() treats two errno values specially: + * + * - ENOENT -- dirname(path) does not exist. In this case, + * raceproof_create_file() tries creating dirname(path) + * (and any parent directories, if necessary) and calls + * the function again. + * + * - EISDIR -- the file already exists and is a directory. In this + * case, raceproof_create_file() removes the directory if + * it is empty (and recursively any empty directories that + * it contains) and calls the function again. + * + * Any other errno causes raceproof_create_file() to fail with the + * callback's return value and errno. + * + * Obviously, this function should be OK with being called again if it + * fails with ENOENT or EISDIR. In other scenarios it will not be + * called again. + */ +typedef int create_file_fn(const char *path, void *cb); + +/* + * Create a file in dirname(path) by calling fn, creating leading + * directories if necessary. Retry a few times in case we are racing + * with another process that is trying to clean up the directory that + * contains path. See the documentation for create_file_fn for more + * details. + * + * Return the value and set the errno that resulted from the most + * recent call of fn. fn is always called at least once, and will be + * called more than once if it returns ENOENT or EISDIR. + */ +int raceproof_create_file(const char *path, create_file_fn fn, void *cb); + int mkdir_in_gitdir(const char *path); -extern char *expand_user_path(const char *path); +extern char *expand_user_path(const char *path, int real_home); const char *enter_repo(const char *path, int strict); static inline int is_absolute_path(const char *path) { @@@ -1146,14 -1111,6 +1139,14 @@@ char *strip_path_suffix(const char *pat int daemon_avoid_alias(const char *path); extern int is_ntfs_dotgit(const char *name); +/* + * Returns true iff "str" could be confused as a command-line option when + * passed to a sub-program like "ssh". Note that this has nothing to do with + * shell-quoting, which should be handled separately; we're assuming here that + * the string makes it verbatim to the sub-program. + */ +int looks_like_command_line_option(const char *str); + /** * Return a newly allocated string with the evaluation of * "$XDG_CONFIG_HOME/git/$filename" if $XDG_CONFIG_HOME is non-empty, otherwise @@@ -1161,19 -1118,13 +1154,19 @@@ */ extern char *xdg_config_home(const char *filename); -/* object replacement */ -#define LOOKUP_REPLACE_OBJECT 1 -#define LOOKUP_UNKNOWN_OBJECT 2 -extern void *read_sha1_file_extended(const unsigned char *sha1, enum object_type *type, unsigned long *size, unsigned flag); +/** + * Return a newly allocated string with the evaluation of + * "$XDG_CACHE_HOME/git/$filename" if $XDG_CACHE_HOME is non-empty, otherwise + * "$HOME/.cache/git/$filename". Return NULL upon error. + */ +extern char *xdg_cache_home(const char *filename); + +extern void *read_sha1_file_extended(const unsigned char *sha1, + enum object_type *type, + unsigned long *size, int lookup_replace); 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); + return read_sha1_file_extended(sha1, type, size, 1); } /* @@@ -1195,6 -1146,13 +1188,6 @@@ static inline const unsigned char *look 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); @@@ -1231,10 -1189,15 +1224,10 @@@ int read_loose_object(const char *path void **contents); /* - * 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. - * - * If the QUICK flag is set, do not re-check the pack directory - * when we cannot find the object (this means we may give a false - * negative answer if another process is simultaneously repacking). + * Convenience for sha1_object_info_extended() with a NULL struct + * object_info. OBJECT_INFO_SKIP_CACHED is automatically set; pass + * nonzero flags to also set other flags. */ -#define HAS_SHA1_QUICK 0x1 extern int has_sha1_file_with_flags(const unsigned char *sha1, int flags); static inline int has_sha1_file(const unsigned char *sha1) { @@@ -1256,9 -1219,6 +1249,9 @@@ extern int has_pack_index(const unsigne extern void assert_sha1_type(const unsigned char *sha1, enum object_type expect); +/* Helper to check and "touch" a file */ +extern int check_and_freshen_file(const char *fn, int freshen); + extern const signed char hexval_table[256]; static inline unsigned int hexval(unsigned char c) { @@@ -1284,46 -1244,41 +1277,46 @@@ static inline int hex2chr(const char *s struct object_context { unsigned char tree[20]; - char path[PATH_MAX]; unsigned 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; }; -#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_FOLLOW_SYMLINKS 0100 -#define GET_SHA1_ONLY_TO_DIE 04000 - -#define GET_SHA1_DISAMBIGUATORS \ - (GET_SHA1_COMMIT | GET_SHA1_COMMITTISH | \ - GET_SHA1_TREE | GET_SHA1_TREEISH | \ - GET_SHA1_BLOB) - -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); +#define GET_OID_QUIETLY 01 +#define GET_OID_COMMIT 02 +#define GET_OID_COMMITTISH 04 +#define GET_OID_TREE 010 +#define GET_OID_TREEISH 020 +#define GET_OID_BLOB 040 +#define GET_OID_FOLLOW_SYMLINKS 0100 +#define GET_OID_RECORD_PATH 0200 +#define GET_OID_ONLY_TO_DIE 04000 + +#define GET_OID_DISAMBIGUATORS \ + (GET_OID_COMMIT | GET_OID_COMMITTISH | \ + GET_OID_TREE | GET_OID_TREEISH | \ + GET_OID_BLOB) extern int get_oid(const char *str, struct object_id *oid); +extern int get_oid_commit(const char *str, struct object_id *oid); +extern int get_oid_committish(const char *str, struct object_id *oid); +extern int get_oid_tree(const char *str, struct object_id *oid); +extern int get_oid_treeish(const char *str, struct object_id *oid); +extern int get_oid_blob(const char *str, struct object_id *oid); +extern void maybe_die_on_misspelt_object_name(const char *name, const char *prefix); +extern int get_oid_with_context(const char *str, unsigned flags, struct object_id *oid, struct object_context *oc); + -typedef int each_abbrev_fn(const unsigned char *sha1, void *); +typedef int each_abbrev_fn(const struct object_id *oid, void *); extern int for_each_abbrev(const char *prefix, each_abbrev_fn, void *); extern int set_disambiguate_hint_config(const char *var, const char *value); @@@ -1354,15 -1309,6 +1347,15 @@@ extern char *oid_to_hex_r(char *out, co extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */ extern char *oid_to_hex(const struct object_id *oid); /* same static buffer as sha1_to_hex */ +/* + * Parse a 40-character hexadecimal object ID starting from hex, updating the + * pointer specified by end when parsing stops. The resulting object ID is + * stored in oid. Returns 0 on success. Parsing will stop on the first NUL or + * other invalid character. end is only updated on success; otherwise, it is + * unmodified. + */ +extern int parse_oid_hex(const char *hex, struct object_id *oid, const char **end); + /* * 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 @@@ -1435,18 -1381,18 +1428,18 @@@ struct date_mode #define DATE_MODE(t) date_mode_from_type(DATE_##t) struct date_mode *date_mode_from_type(enum date_mode_type type); -const char *show_date(unsigned long time, int timezone, const struct date_mode *mode); -void show_date_relative(unsigned long time, int tz, const struct timeval *now, +const char *show_date(timestamp_t time, int timezone, const struct date_mode *mode); +void show_date_relative(timestamp_t time, int tz, const struct timeval *now, struct strbuf *timebuf); int parse_date(const char *date, struct strbuf *out); -int parse_date_basic(const char *date, unsigned long *timestamp, int *offset); -int parse_expiry_date(const char *date, unsigned long *timestamp); +int parse_date_basic(const char *date, timestamp_t *timestamp, int *offset); +int parse_expiry_date(const char *date, timestamp_t *timestamp); void datestamp(struct strbuf *out); #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); +timestamp_t approxidate_careful(const char *, int *); +timestamp_t approxidate_relative(const char *date, const struct timeval *now); void parse_date_format(const char *format, struct date_mode *mode); -int date_overflows(unsigned long date); +int date_overflows(timestamp_t date); #define IDENT_STRICT 1 #define IDENT_NO_DATE 2 @@@ -1499,7 -1445,6 +1492,7 @@@ struct checkout struct index_state *istate; const char *base_dir; int base_dir_len; + struct delayed_checkout *delayed_checkout; unsigned force:1, quiet:1, not_new:1, @@@ -1509,8 -1454,6 +1502,8 @@@ #define TEMPORARY_FILENAME_LENGTH 25 extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath); +extern void enable_delayed_checkout(struct checkout *state); +extern int finish_delayed_checkout(struct checkout *state); struct cache_def { struct strbuf path; @@@ -1538,16 -1481,6 +1531,16 @@@ extern struct alternate_object_databas struct strbuf scratch; size_t base_len; + /* + * Used to store the results of readdir(3) calls when searching + * for unique abbreviated hashes. This cache is never + * invalidated, thus it's racy and not necessarily accurate. + * That's fine for its purpose; don't use it for tasks requiring + * greater accuracy! + */ + char loose_objects_subdir_seen[256]; + struct oid_array loose_objects_cache; + char path[FLEX_ARRAY]; } *alt_odb_list; extern void prepare_alt_odb(void); @@@ -1651,12 -1584,9 +1644,12 @@@ extern struct packed_git *find_sha1_pac extern void pack_report(void); /* - * Create a temporary file rooted in the object database directory. + * Create a temporary file rooted in the object database directory, or + * die on failure. The filename is taken from "pattern", which should have the + * usual "XXXXXX" trailer, and the resulting filename is written into the + * "template" buffer. Returns the open descriptor. */ -extern int odb_mkstemp(char *template, size_t limit, const char *pattern); +extern int odb_mkstemp(struct strbuf *template, const char *pattern); /* * Generate the filename to be used for a pack file with checksum "sha1" and @@@ -1710,12 -1640,6 +1703,12 @@@ extern void check_pack_index_ptr(const * error. */ extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t n); +/* + * Like nth_packed_object_sha1, but write the data into the object specified by + * the the first argument. Returns the first argument on success, and NULL on + * error. + */ +extern const struct object_id *nth_packed_object_oid(struct object_id *, struct packed_git *, uint32_t n); /* * Return the offset of the nth object within the specified packfile. @@@ -1757,21 -1681,15 +1750,21 @@@ extern int unpack_object_header(struct * scratch buffer, but restored to its original contents before * the function returns. */ -typedef int each_loose_object_fn(const unsigned char *sha1, +typedef int each_loose_object_fn(const struct object_id *oid, const char *path, void *data); typedef int each_loose_cruft_fn(const char *basename, const char *path, void *data); -typedef int each_loose_subdir_fn(int nr, +typedef int each_loose_subdir_fn(unsigned int nr, const char *path, void *data); +int for_each_file_in_obj_subdir(unsigned int subdir_nr, + struct strbuf *path, + each_loose_object_fn obj_cb, + each_loose_cruft_fn cruft_cb, + each_loose_subdir_fn subdir_cb, + void *data); int for_each_loose_file_in_objdir(const char *path, each_loose_object_fn obj_cb, each_loose_cruft_fn cruft_cb, @@@ -1789,7 -1707,7 +1782,7 @@@ int for_each_loose_file_in_objdir_buf(s * LOCAL_ONLY flag is set). */ #define FOR_EACH_OBJECT_LOCAL_ONLY 0x1 -typedef int each_packed_object_fn(const unsigned char *sha1, +typedef int each_packed_object_fn(const struct object_id *oid, struct packed_git *pack, uint32_t pos, void *data); @@@ -1803,7 -1721,6 +1796,7 @@@ struct object_info off_t *disk_sizep; unsigned char *delta_base_sha1; struct strbuf *typename; + void **contentp; /* Response */ enum { @@@ -1835,23 -1752,181 +1828,23 @@@ */ #define OBJECT_INFO_INIT {NULL} +/* Invoke lookup_replace_object() on the given hash */ +#define OBJECT_INFO_LOOKUP_REPLACE 1 +/* Allow reading from a loose object file of unknown/bogus type */ +#define OBJECT_INFO_ALLOW_UNKNOWN_TYPE 2 +/* Do not check cached storage */ +#define OBJECT_INFO_SKIP_CACHED 4 +/* Do not retry packed storage after checking packed and loose storage */ +#define OBJECT_INFO_QUICK 8 extern int sha1_object_info_extended(const unsigned char *, struct object_info *, unsigned flags); extern int packed_object_info(struct packed_git *pack, off_t offset, struct object_info *); /* 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_gently(), git_config_set_multivar_gently() 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 - -#define CONFIG_REGEX_NONE ((void *)1) - -struct git_config_source { - unsigned int use_stdin:1; - const char *file; - const char *blob; -}; - -enum config_origin_type { - CONFIG_ORIGIN_BLOB, - CONFIG_ORIGIN_FILE, - CONFIG_ORIGIN_STDIN, - CONFIG_ORIGIN_SUBMODULE_BLOB, - CONFIG_ORIGIN_CMDLINE -}; - -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_mem(config_fn_t fn, const enum config_origin_type, - const char *name, const char *buf, size_t len, void *data); -extern int git_config_from_blob_sha1(config_fn_t fn, const char *name, - const unsigned char *sha1, void *data); -extern void git_config_push_parameter(const char *text); -extern int git_config_from_parameters(config_fn_t fn, void *data); -extern void 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_parse_ulong(const char *, unsigned long *); -extern int git_parse_maybe_bool(const char *); -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_gently(const char *, const char *, const char *); -extern void git_config_set_in_file(const char *, const char *, const char *); -extern int git_config_set_gently(const char *, const char *); -extern void git_config_set(const char *, const char *); -extern int git_config_parse_key(const char *, char **, int *); -extern int git_config_key_is_valid(const char *key); -extern int git_config_set_multivar_gently(const char *, const char *, const char *, int); -extern void git_config_set_multivar(const char *, const char *, const char *, int); -extern int git_config_set_multivar_in_file_gently(const char *, const char *, const char *, const char *, int); -extern void 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 git_env_bool(const char *, int); -extern unsigned long git_env_ulong(const char *, unsigned long); -extern int git_config_system(void); -extern int config_error_nonbool(const char *); -#if defined(__GNUC__) -#define config_error_nonbool(s) (config_error_nonbool(s), const_error()) -#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); - -enum config_scope { - CONFIG_SCOPE_UNKNOWN = 0, - CONFIG_SCOPE_SYSTEM, - CONFIG_SCOPE_GLOBAL, - CONFIG_SCOPE_REPO, - CONFIG_SCOPE_CMDLINE, -}; - -extern enum config_scope current_config_scope(void); -extern const char *current_config_origin_type(void); -extern const char *current_config_name(void); - -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). - * - * If the subsection pointer-to-pointer passed in is NULL, returns 0 only if - * there is no subsection at all. - */ -extern int parse_config_key(const char *var, - const char *section, - const char **subsection, int *subsection_len, - const char **key); - -struct config_set_element { - struct hashmap_entry ent; - char *key; - struct string_list value_list; -}; - -struct configset_list_item { - struct config_set_element *e; - int value_index; -}; - -/* - * the contents of the list are ordered according to their - * position in the config files and order of parsing the files. - * (i.e. key-value pair at the last position of .git/config will - * be at the last item of the list) - */ -struct configset_list { - struct configset_list_item *items; - unsigned int nr, alloc; -}; - -struct config_set { - struct hashmap config_hash; - int hash_initialized; - struct configset_list list; -}; - -extern void git_configset_init(struct config_set *cs); -extern int git_configset_add_file(struct config_set *cs, const char *filename); -extern int git_configset_get_value(struct config_set *cs, const char *key, const char **value); -extern const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key); -extern void git_configset_clear(struct config_set *cs); -extern int git_configset_get_string_const(struct config_set *cs, const char *key, const char **dest); -extern int git_configset_get_string(struct config_set *cs, const char *key, char **dest); -extern int git_configset_get_int(struct config_set *cs, const char *key, int *dest); -extern int git_configset_get_ulong(struct config_set *cs, const char *key, unsigned long *dest); -extern int git_configset_get_bool(struct config_set *cs, const char *key, int *dest); -extern int git_configset_get_bool_or_int(struct config_set *cs, const char *key, int *is_bool, int *dest); -extern int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *dest); -extern int git_configset_get_pathname(struct config_set *cs, const char *key, const char **dest); - -extern int git_config_get_value(const char *key, const char **value); -extern const struct string_list *git_config_get_value_multi(const char *key); -extern void git_config_clear(void); -extern void git_config_iter(config_fn_t fn, void *data); -extern int git_config_get_string_const(const char *key, const char **dest); -extern int git_config_get_string(const char *key, char **dest); -extern int git_config_get_int(const char *key, int *dest); -extern int git_config_get_ulong(const char *key, unsigned long *dest); -extern int git_config_get_bool(const char *key, int *dest); -extern int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest); -extern int git_config_get_maybe_bool(const char *key, int *dest); -extern int git_config_get_pathname(const char *key, const char **dest); -extern int git_config_get_untracked_cache(void); - /* * This is a hack for test programs like test-dump-untracked-cache to * ensure that they do not modify the untracked cache when reading it. @@@ -1859,6 -1934,16 +1852,6 @@@ */ extern int ignore_untracked_cache_config; -struct key_value_info { - const char *filename; - int linenr; - enum config_origin_type origin_type; - enum config_scope scope; -}; - -extern NORETURN void git_die_config(const char *key, const char *err, ...) __attribute__((format(printf, 2, 3))); -extern NORETURN void git_die_config_linenr(const char *key, const char *filename, int linenr); - extern int committer_ident_sufficiently_given(void); extern int author_ident_sufficiently_given(void); @@@ -1974,8 -2059,7 +1967,8 @@@ extern int ws_blank_line(const char *li #define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK) /* ls-files */ -void overlay_tree_on_cache(const char *tree_name, const char *prefix); +void overlay_tree_on_index(struct index_state *istate, + const char *tree_name, const char *prefix); char *alias_lookup(const char *alias); int split_cmdline(char *cmdline, const char ***argv); @@@ -1994,8 -2078,8 +1987,8 @@@ 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 checkout_fast_forward(const struct object_id *from, + const struct object_id *to, int overwrite_ignore);