mirror of
https://github.com/git/git
synced 2024-10-30 04:01:21 +00:00
b46f7e54fc
* jc/add-addremove: builtin-add.c: optimize -A option and "git add ." builtin-add.c: restructure the code for maintainability
851 lines
30 KiB
C
851 lines
30 KiB
C
#ifndef CACHE_H
|
|
#define CACHE_H
|
|
|
|
#include "git-compat-util.h"
|
|
#include "strbuf.h"
|
|
#include "hash.h"
|
|
|
|
#include SHA1_HEADER
|
|
#include <zlib.h>
|
|
|
|
#if defined(NO_DEFLATE_BOUND) || ZLIB_VERNUM < 0x1200
|
|
#define deflateBound(c,s) ((s) + (((s) + 7) >> 3) + (((s) + 63) >> 6) + 11)
|
|
#endif
|
|
|
|
#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 {
|
|
unsigned int hdr_signature;
|
|
unsigned int hdr_version;
|
|
unsigned int hdr_entries;
|
|
};
|
|
|
|
/*
|
|
* 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 {
|
|
unsigned int sec;
|
|
unsigned int nsec;
|
|
};
|
|
|
|
/*
|
|
* dev/ino/uid/gid/size are also just tracked to the low 32 bits
|
|
* Again - this is just a (very strong in practice) heuristic that
|
|
* the inode hasn't changed.
|
|
*
|
|
* We save the fields in big-endian order to allow using the
|
|
* index file over NFS transparently.
|
|
*/
|
|
struct ondisk_cache_entry {
|
|
struct cache_time ctime;
|
|
struct cache_time mtime;
|
|
unsigned int dev;
|
|
unsigned int ino;
|
|
unsigned int mode;
|
|
unsigned int uid;
|
|
unsigned int gid;
|
|
unsigned int size;
|
|
unsigned char sha1[20];
|
|
unsigned short flags;
|
|
char name[FLEX_ARRAY]; /* more */
|
|
};
|
|
|
|
struct cache_entry {
|
|
unsigned int ce_ctime;
|
|
unsigned int ce_mtime;
|
|
unsigned int ce_dev;
|
|
unsigned int ce_ino;
|
|
unsigned int ce_mode;
|
|
unsigned int ce_uid;
|
|
unsigned int ce_gid;
|
|
unsigned int ce_size;
|
|
unsigned int ce_flags;
|
|
unsigned char sha1[20];
|
|
struct cache_entry *next;
|
|
char name[FLEX_ARRAY]; /* more */
|
|
};
|
|
|
|
#define CE_NAMEMASK (0x0fff)
|
|
#define CE_STAGEMASK (0x3000)
|
|
#define CE_EXTENDED (0x4000)
|
|
#define CE_VALID (0x8000)
|
|
#define CE_STAGESHIFT 12
|
|
|
|
/* In-memory only */
|
|
#define CE_UPDATE (0x10000)
|
|
#define CE_REMOVE (0x20000)
|
|
#define CE_UPTODATE (0x40000)
|
|
#define CE_ADDED (0x80000)
|
|
|
|
#define CE_HASHED (0x100000)
|
|
#define CE_UNHASHED (0x200000)
|
|
|
|
/*
|
|
* Copy the sha1 and stat state of a cache entry from one to
|
|
* another. But we never change the name, or the hash state!
|
|
*/
|
|
#define CE_STATE_MASK (CE_HASHED | CE_UNHASHED)
|
|
static inline void copy_cache_entry(struct cache_entry *dst, struct cache_entry *src)
|
|
{
|
|
unsigned int state = dst->ce_flags & CE_STATE_MASK;
|
|
|
|
/* Don't copy hash chain and name */
|
|
memcpy(dst, src, offsetof(struct cache_entry, next));
|
|
|
|
/* Restore the hash state */
|
|
dst->ce_flags = (dst->ce_flags & ~CE_STATE_MASK) | state;
|
|
}
|
|
|
|
static inline unsigned create_ce_flags(size_t len, unsigned stage)
|
|
{
|
|
if (len >= CE_NAMEMASK)
|
|
len = CE_NAMEMASK;
|
|
return (len | (stage << CE_STAGESHIFT));
|
|
}
|
|
|
|
static inline size_t ce_namelen(const struct cache_entry *ce)
|
|
{
|
|
size_t len = ce->ce_flags & CE_NAMEMASK;
|
|
if (len < CE_NAMEMASK)
|
|
return len;
|
|
return strlen(ce->name + CE_NAMEMASK) + CE_NAMEMASK;
|
|
}
|
|
|
|
#define ce_size(ce) cache_entry_size(ce_namelen(ce))
|
|
#define ondisk_ce_size(ce) ondisk_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_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(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;
|
|
}
|
|
#define canon_mode(mode) \
|
|
(S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \
|
|
S_ISLNK(mode) ? S_IFLNK : S_ISDIR(mode) ? S_IFDIR : S_IFGITLINK)
|
|
|
|
#define cache_entry_size(len) ((offsetof(struct cache_entry,name) + (len) + 8) & ~7)
|
|
#define ondisk_cache_entry_size(len) ((offsetof(struct ondisk_cache_entry,name) + (len) + 8) & ~7)
|
|
|
|
struct index_state {
|
|
struct cache_entry **cache;
|
|
unsigned int cache_nr, cache_alloc, cache_changed;
|
|
struct cache_tree *cache_tree;
|
|
time_t timestamp;
|
|
void *alloc;
|
|
unsigned name_hash_initialized : 1,
|
|
initialized : 1;
|
|
struct hash_table name_hash;
|
|
};
|
|
|
|
extern struct index_state the_index;
|
|
|
|
/* Name hashing */
|
|
extern void add_name_hash(struct index_state *istate, struct cache_entry *ce);
|
|
/*
|
|
* We don't actually *remove* it, we can just mark it invalid so that
|
|
* we won't find it in lookups.
|
|
*
|
|
* Not only would we have to search the lists (simple enough), but
|
|
* we'd also have to rehash other hash buckets in case this makes the
|
|
* hash bucket empty (common). So it's much better to just mark
|
|
* it.
|
|
*/
|
|
static inline void remove_name_hash(struct cache_entry *ce)
|
|
{
|
|
ce->ce_flags |= CE_UNHASHED;
|
|
}
|
|
|
|
|
|
#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_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)
|
|
#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_name_exists(name, namelen, igncase) index_name_exists(&the_index, (name), (namelen), (igncase))
|
|
#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;
|
|
}
|
|
|
|
#define GIT_DIR_ENVIRONMENT "GIT_DIR"
|
|
#define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
|
|
#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 TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR"
|
|
#define CONFIG_ENVIRONMENT "GIT_CONFIG"
|
|
#define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH"
|
|
#define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES"
|
|
#define GITATTRIBUTES_FILE ".gitattributes"
|
|
#define INFOATTRIBUTES_FILE "info/attributes"
|
|
#define ATTRIBUTE_MACRO_PREFIX "[attr]"
|
|
|
|
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 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_work_tree(void);
|
|
extern const char *read_gitfile_gently(const char *path);
|
|
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 const char *prefix_path(const char *prefix, int len, const char *path);
|
|
extern const char *prefix_filename(const char *prefix, int len, const char *path);
|
|
extern void verify_filename(const char *prefix, const char *name);
|
|
extern void verify_non_filename(const char *prefix, const char *name);
|
|
|
|
#define INIT_DB_QUIET 0x0001
|
|
|
|
extern int init_db(const char *template_dir, unsigned int flags);
|
|
|
|
#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' 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_from(struct index_state *, const char *path);
|
|
extern int read_index_unmerged(struct index_state *);
|
|
extern int write_index(const 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_name_exists(struct index_state *istate, const char *name, int namelen, int igncase);
|
|
extern int index_name_pos(const struct index_state *, const char *name, int namelen);
|
|
#define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */
|
|
#define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
|
|
#define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */
|
|
#define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */
|
|
extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option);
|
|
extern struct cache_entry *refresh_cache_entry(struct cache_entry *ce, int really);
|
|
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 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
|
|
extern int add_to_index(struct index_state *, const char *path, struct stat *, int flags);
|
|
extern int add_file_to_index(struct index_state *, const char *path, int flags);
|
|
extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, int refresh);
|
|
extern int ce_same_name(struct cache_entry *a, struct cache_entry *b);
|
|
|
|
/* 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
|
|
extern int ie_match_stat(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
|
|
extern int ie_modified(const struct index_state *, struct cache_entry *, struct stat *, unsigned int);
|
|
|
|
extern int ce_path_match(const struct cache_entry *ce, const char **pathspec);
|
|
extern int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object, enum object_type type, const char *path);
|
|
extern int index_path(unsigned char *sha1, const char *path, struct stat *st, int write_object);
|
|
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_SAY_CHANGED 0x0020 /* say "changed" not "needs update" */
|
|
extern int refresh_index(struct index_state *, unsigned int flags, const char **pathspec, char *seen);
|
|
|
|
struct lock_file {
|
|
struct lock_file *next;
|
|
int fd;
|
|
pid_t owner;
|
|
char on_list;
|
|
char filename[PATH_MAX];
|
|
};
|
|
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 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);
|
|
|
|
/* Environment bits from configuration mechanism */
|
|
extern int trust_executable_bit;
|
|
extern int trust_ctime;
|
|
extern int quote_path_fully;
|
|
extern int has_symlinks;
|
|
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 shared_repository;
|
|
extern const char *apply_default_whitespace;
|
|
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 int auto_crlf;
|
|
extern int fsync_object_files;
|
|
|
|
enum safe_crlf {
|
|
SAFE_CRLF_FALSE = 0,
|
|
SAFE_CRLF_FAIL = 1,
|
|
SAFE_CRLF_WARN = 2,
|
|
};
|
|
|
|
extern enum safe_crlf safe_crlf;
|
|
|
|
enum branch_track {
|
|
BRANCH_TRACK_UNSPECIFIED = -1,
|
|
BRANCH_TRACK_NEVER = 0,
|
|
BRANCH_TRACK_REMOTE,
|
|
BRANCH_TRACK_ALWAYS,
|
|
BRANCH_TRACK_EXPLICIT,
|
|
};
|
|
|
|
enum rebase_setup_type {
|
|
AUTOREBASE_NEVER = 0,
|
|
AUTOREBASE_LOCAL,
|
|
AUTOREBASE_REMOTE,
|
|
AUTOREBASE_ALWAYS,
|
|
};
|
|
|
|
extern enum branch_track git_branch_track;
|
|
extern enum rebase_setup_type autorebase;
|
|
|
|
#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
|
|
|
|
/* 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 *sha1_file_name(const unsigned char *sha1);
|
|
extern char *sha1_pack_name(const unsigned char *sha1);
|
|
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 is_null_sha1(const unsigned char *sha1)
|
|
{
|
|
return !memcmp(sha1, null_sha1, 20);
|
|
}
|
|
static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
|
|
{
|
|
return memcmp(sha1, sha2, 20);
|
|
}
|
|
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);
|
|
}
|
|
|
|
int git_mkstemp(char *path, size_t n, const char *template);
|
|
|
|
/*
|
|
* 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);
|
|
int safe_create_leading_directories(char *path);
|
|
int safe_create_leading_directories_const(const char *path);
|
|
char *enter_repo(char *path, int strict);
|
|
static inline int is_absolute_path(const char *path)
|
|
{
|
|
return path[0] == '/' || has_dos_drive_prefix(path);
|
|
}
|
|
const char *make_absolute_path(const char *path);
|
|
const char *make_nonrelative_path(const char *path);
|
|
const char *make_relative_path(const char *abs, const char *base);
|
|
int normalize_absolute_path(char *buf, const char *path);
|
|
int longest_ancestor_length(const char *path, const char *prefix_list);
|
|
|
|
/* 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 void * read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size);
|
|
extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1);
|
|
extern int write_sha1_file(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);
|
|
|
|
/* just like read_sha1_file(), but non fatal in presence of bad objects */
|
|
extern void *read_object(const unsigned char *sha1, enum object_type *type, unsigned long *size);
|
|
|
|
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, const char **ignore);
|
|
extern int has_sha1_file(const unsigned char *sha1);
|
|
|
|
extern int has_pack_file(const unsigned char *sha1);
|
|
extern int has_pack_index(const unsigned char *sha1);
|
|
|
|
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 4
|
|
#define DEFAULT_ABBREV 7
|
|
|
|
extern int get_sha1(const char *str, unsigned char *sha1);
|
|
extern int get_sha1_with_mode(const char *str, unsigned char *sha1, unsigned *mode);
|
|
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(const char *filename, unsigned char *sha1);
|
|
extern const char *resolve_ref(const char *path, unsigned char *sha1, int, int *);
|
|
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 refname_match(const char *abbrev_name, const char *full_name, const char **rules);
|
|
extern const char *ref_rev_parse_rules[];
|
|
extern const char *ref_fetch_rules[];
|
|
|
|
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 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
|
|
};
|
|
|
|
const char *show_date(unsigned long time, int timezone, enum date_mode mode);
|
|
int parse_date(const char *date, char *buf, int bufsize);
|
|
void datestamp(char *buf, int bufsize);
|
|
unsigned long approxidate(const char *);
|
|
enum date_mode parse_date_format(const char *format);
|
|
|
|
#define IDENT_WARN_ON_NO_NAME 1
|
|
#define IDENT_ERROR_ON_NO_NAME 2
|
|
#define IDENT_NO_DATE 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);
|
|
|
|
struct checkout {
|
|
const char *base_dir;
|
|
int base_dir_len;
|
|
unsigned force:1,
|
|
quiet:1,
|
|
not_new:1,
|
|
refresh_cache:1;
|
|
};
|
|
|
|
extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath);
|
|
extern int has_symlink_leading_path(int len, const char *name);
|
|
|
|
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 add_to_alternates_file(const char *reference);
|
|
|
|
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;
|
|
int pack_local;
|
|
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;
|
|
};
|
|
|
|
struct ref {
|
|
struct ref *next;
|
|
unsigned char old_sha1[20];
|
|
unsigned char new_sha1[20];
|
|
char *symref;
|
|
unsigned int force:1,
|
|
merge:1,
|
|
nonfastforward:1,
|
|
deletion:1;
|
|
enum {
|
|
REF_STATUS_NONE = 0,
|
|
REF_STATUS_OK,
|
|
REF_STATUS_REJECT_NONFASTFORWARD,
|
|
REF_STATUS_REJECT_NODELETE,
|
|
REF_STATUS_UPTODATE,
|
|
REF_STATUS_REMOTE_REJECT,
|
|
REF_STATUS_EXPECTING_REPORT,
|
|
} status;
|
|
char *remote_status;
|
|
struct ref *peer_ref; /* when renaming */
|
|
char name[FLEX_ARRAY]; /* more */
|
|
};
|
|
|
|
#define REF_NORMAL (1u << 0)
|
|
#define REF_HEADS (1u << 1)
|
|
#define REF_TAGS (1u << 2)
|
|
|
|
extern struct ref *find_ref_by_name(struct ref *list, const char *name);
|
|
|
|
#define CONNECT_VERBOSE (1u << 0)
|
|
extern struct child_process *git_connect(int fd[2], const char *url, const char *prog, int flags);
|
|
extern int finish_connect(struct child_process *conn);
|
|
extern int path_match(const char *path, int nr, char **match);
|
|
extern int get_ack(int fd, unsigned char *result_sha1);
|
|
extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match, unsigned int flags);
|
|
extern int server_supports(const char *feature);
|
|
|
|
extern struct packed_git *parse_pack_index(unsigned char *sha1);
|
|
|
|
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);
|
|
extern int open_pack_index(struct packed_git *);
|
|
extern unsigned char* use_pack(struct packed_git *, struct pack_window **, off_t, unsigned int *);
|
|
extern void close_pack_windows(struct packed_git *);
|
|
extern void unuse_pack(struct pack_window **);
|
|
extern struct packed_git *add_packed_git(const char *, int, int);
|
|
extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t);
|
|
extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t);
|
|
extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *);
|
|
extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *);
|
|
extern unsigned long unpack_object_header_gently(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 const char *packed_object_info_detail(struct packed_git *, off_t, unsigned long *, unsigned long *, unsigned int *, unsigned char *);
|
|
extern int matches_pack_name(struct packed_git *p, const char *name);
|
|
|
|
/* Dumb servers support */
|
|
extern int update_server_info(int);
|
|
|
|
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(config_fn_t fn, void *);
|
|
extern int git_parse_long(const char *, long *);
|
|
extern int git_parse_ulong(const char *, unsigned long *);
|
|
extern int git_config_int(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_string(const char **, const char *, const char *);
|
|
extern int git_config_set(const char *, const char *);
|
|
extern int git_config_set_multivar(const char *, const char *, const char *, int);
|
|
extern int git_config_rename_section(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_config_system(void);
|
|
extern int git_config_global(void);
|
|
extern int config_error_nonbool(const char *);
|
|
extern const char *config_exclusive_filename;
|
|
|
|
#define MAX_GITNAME (1000)
|
|
extern char git_default_email[MAX_GITNAME];
|
|
extern char git_default_name[MAX_GITNAME];
|
|
extern int user_ident_explicitly_given;
|
|
|
|
extern const char *git_commit_encoding;
|
|
extern const char *git_log_output_encoding;
|
|
|
|
/* 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 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);
|
|
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 *);
|
|
|
|
/* pager.c */
|
|
extern void setup_pager(void);
|
|
extern const char *pager_program;
|
|
extern int pager_in_use(void);
|
|
extern int pager_use_color;
|
|
|
|
extern const char *editor_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 */
|
|
extern void trace_printf(const char *format, ...);
|
|
extern void trace_argv_printf(const char **argv, const char *format, ...);
|
|
|
|
/* convert.c */
|
|
/* returns 1 if *dst was used */
|
|
extern int convert_to_git(const char *path, const char *src, size_t len,
|
|
struct strbuf *dst, enum safe_crlf checksafe);
|
|
extern int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst);
|
|
|
|
/* 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 char **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);
|
|
|
|
/*
|
|
* whitespace rules.
|
|
* used by both diff and apply
|
|
*/
|
|
#define WS_TRAILING_SPACE 01
|
|
#define WS_SPACE_BEFORE_TAB 02
|
|
#define WS_INDENT_WITH_NON_TAB 04
|
|
#define WS_CR_AT_EOL 010
|
|
#define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB)
|
|
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 int ws_fix_copy(char *, const char *, int, unsigned, int *);
|
|
extern int ws_blank_line(const char *line, int len, unsigned ws_rule);
|
|
|
|
/* ls-files */
|
|
int pathspec_match(const char **spec, char *matched, const char *filename, int skiplen);
|
|
int report_path_error(const char *ps_matched, const char **pathspec, int prefix_offset);
|
|
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);
|
|
|
|
#endif /* CACHE_H */
|