mirror of
https://github.com/git/git
synced 2024-08-27 11:39:22 +00:00
![Junio C Hamano](/assets/img/avatar_default.png)
* jc/ident: ident.c: replace fprintf with fputs to suppress compiler warning user_ident_sufficiently_given(): refactor the logic to be usable from elsewhere ident.c: treat $EMAIL as giving user.email identity explicitly ident.c: check explicit identity for name and email separately ident.c: remove unused variables
1035 lines
36 KiB
C
1035 lines
36 KiB
C
#ifndef CACHE_H
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#define CACHE_H
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#include "git-compat-util.h"
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#include "strbuf.h"
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#include "hash.h"
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#include "advice.h"
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#include SHA1_HEADER
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#ifndef git_SHA_CTX
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#define git_SHA_CTX SHA_CTX
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#define git_SHA1_Init SHA1_Init
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#define git_SHA1_Update SHA1_Update
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#define git_SHA1_Final SHA1_Final
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#endif
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#include <zlib.h>
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#if defined(NO_DEFLATE_BOUND) || ZLIB_VERNUM < 0x1200
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#define deflateBound(c,s) ((s) + (((s) + 7) >> 3) + (((s) + 63) >> 6) + 11)
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#endif
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void git_inflate_init(z_streamp strm);
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void git_inflate_end(z_streamp strm);
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int git_inflate(z_streamp strm, int flush);
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#if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT)
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#define DTYPE(de) ((de)->d_type)
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#else
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#undef DT_UNKNOWN
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#undef DT_DIR
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#undef DT_REG
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#undef DT_LNK
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#define DT_UNKNOWN 0
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#define DT_DIR 1
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#define DT_REG 2
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#define DT_LNK 3
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#define DTYPE(de) DT_UNKNOWN
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#endif
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/* unknown mode (impossible combination S_IFIFO|S_IFCHR) */
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#define S_IFINVALID 0030000
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/*
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* A "directory link" is a link to another git directory.
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*
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* The value 0160000 is not normally a valid mode, and
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* also just happens to be S_IFDIR + S_IFLNK
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*
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* NOTE! We *really* shouldn't depend on the S_IFxxx macros
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* always having the same values everywhere. We should use
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* our internal git values for these things, and then we can
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* translate that to the OS-specific value. It just so
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* happens that everybody shares the same bit representation
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* in the UNIX world (and apparently wider too..)
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*/
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#define S_IFGITLINK 0160000
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#define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK)
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/*
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* Intensive research over the course of many years has shown that
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* port 9418 is totally unused by anything else. Or
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*
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* Your search - "port 9418" - did not match any documents.
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*
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* as www.google.com puts it.
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*
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* This port has been properly assigned for git use by IANA:
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* git (Assigned-9418) [I06-050728-0001].
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*
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* git 9418/tcp git pack transfer service
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* git 9418/udp git pack transfer service
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*
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* with Linus Torvalds <torvalds@osdl.org> as the point of
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* contact. September 2005.
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*
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* See http://www.iana.org/assignments/port-numbers
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*/
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#define DEFAULT_GIT_PORT 9418
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/*
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* Basic data structures for the directory cache
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*/
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#define CACHE_SIGNATURE 0x44495243 /* "DIRC" */
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struct cache_header {
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unsigned int hdr_signature;
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unsigned int hdr_version;
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unsigned int hdr_entries;
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};
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/*
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* The "cache_time" is just the low 32 bits of the
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* time. It doesn't matter if it overflows - we only
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* check it for equality in the 32 bits we save.
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*/
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struct cache_time {
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unsigned int sec;
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unsigned int nsec;
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};
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/*
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* dev/ino/uid/gid/size are also just tracked to the low 32 bits
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* Again - this is just a (very strong in practice) heuristic that
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* the inode hasn't changed.
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*
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* We save the fields in big-endian order to allow using the
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* index file over NFS transparently.
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*/
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struct ondisk_cache_entry {
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struct cache_time ctime;
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struct cache_time mtime;
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unsigned int dev;
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unsigned int ino;
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unsigned int mode;
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unsigned int uid;
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unsigned int gid;
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unsigned int size;
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unsigned char sha1[20];
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unsigned short flags;
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char name[FLEX_ARRAY]; /* more */
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};
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/*
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* This struct is used when CE_EXTENDED bit is 1
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* The struct must match ondisk_cache_entry exactly from
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* ctime till flags
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*/
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struct ondisk_cache_entry_extended {
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struct cache_time ctime;
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struct cache_time mtime;
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unsigned int dev;
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unsigned int ino;
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unsigned int mode;
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unsigned int uid;
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unsigned int gid;
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unsigned int size;
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unsigned char sha1[20];
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unsigned short flags;
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unsigned short flags2;
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char name[FLEX_ARRAY]; /* more */
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};
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struct cache_entry {
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struct cache_time ce_ctime;
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struct cache_time ce_mtime;
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unsigned int ce_dev;
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unsigned int ce_ino;
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unsigned int ce_mode;
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unsigned int ce_uid;
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unsigned int ce_gid;
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unsigned int ce_size;
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unsigned int ce_flags;
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unsigned char sha1[20];
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struct cache_entry *next;
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char name[FLEX_ARRAY]; /* more */
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};
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#define CE_NAMEMASK (0x0fff)
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#define CE_STAGEMASK (0x3000)
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#define CE_EXTENDED (0x4000)
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#define CE_VALID (0x8000)
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#define CE_STAGESHIFT 12
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/*
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* Range 0xFFFF0000 in ce_flags is divided into
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* two parts: in-memory flags and on-disk ones.
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* Flags in CE_EXTENDED_FLAGS will get saved on-disk
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* if you want to save a new flag, add it in
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* CE_EXTENDED_FLAGS
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*
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* In-memory only flags
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*/
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#define CE_UPDATE (0x10000)
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#define CE_REMOVE (0x20000)
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#define CE_UPTODATE (0x40000)
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#define CE_ADDED (0x80000)
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#define CE_HASHED (0x100000)
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#define CE_UNHASHED (0x200000)
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#define CE_CONFLICTED (0x800000)
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/* Only remove in work directory, not index */
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#define CE_WT_REMOVE (0x400000)
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/*
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* Extended on-disk flags
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*/
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#define CE_INTENT_TO_ADD 0x20000000
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#define CE_SKIP_WORKTREE 0x40000000
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/* CE_EXTENDED2 is for future extension */
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#define CE_EXTENDED2 0x80000000
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#define CE_EXTENDED_FLAGS (CE_INTENT_TO_ADD | CE_SKIP_WORKTREE)
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/*
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* Safeguard to avoid saving wrong flags:
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* - CE_EXTENDED2 won't get saved until its semantic is known
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* - Bits in 0x0000FFFF have been saved in ce_flags already
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* - Bits in 0x003F0000 are currently in-memory flags
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*/
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#if CE_EXTENDED_FLAGS & 0x803FFFFF
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#error "CE_EXTENDED_FLAGS out of range"
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#endif
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/*
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* Copy the sha1 and stat state of a cache entry from one to
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* another. But we never change the name, or the hash state!
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*/
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#define CE_STATE_MASK (CE_HASHED | CE_UNHASHED)
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static inline void copy_cache_entry(struct cache_entry *dst, struct cache_entry *src)
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{
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unsigned int state = dst->ce_flags & CE_STATE_MASK;
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/* Don't copy hash chain and name */
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memcpy(dst, src, offsetof(struct cache_entry, next));
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/* Restore the hash state */
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dst->ce_flags = (dst->ce_flags & ~CE_STATE_MASK) | state;
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}
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static inline unsigned create_ce_flags(size_t len, unsigned stage)
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{
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if (len >= CE_NAMEMASK)
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len = CE_NAMEMASK;
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return (len | (stage << CE_STAGESHIFT));
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}
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static inline size_t ce_namelen(const struct cache_entry *ce)
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{
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size_t len = ce->ce_flags & CE_NAMEMASK;
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if (len < CE_NAMEMASK)
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return len;
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return strlen(ce->name + CE_NAMEMASK) + CE_NAMEMASK;
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}
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#define ce_size(ce) cache_entry_size(ce_namelen(ce))
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#define ondisk_ce_size(ce) (((ce)->ce_flags & CE_EXTENDED) ? \
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ondisk_cache_entry_extended_size(ce_namelen(ce)) : \
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ondisk_cache_entry_size(ce_namelen(ce)))
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#define ce_stage(ce) ((CE_STAGEMASK & (ce)->ce_flags) >> CE_STAGESHIFT)
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#define ce_uptodate(ce) ((ce)->ce_flags & CE_UPTODATE)
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#define ce_skip_worktree(ce) ((ce)->ce_flags & CE_SKIP_WORKTREE)
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#define ce_mark_uptodate(ce) ((ce)->ce_flags |= CE_UPTODATE)
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#define ce_permissions(mode) (((mode) & 0100) ? 0755 : 0644)
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static inline unsigned int create_ce_mode(unsigned int mode)
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{
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if (S_ISLNK(mode))
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return S_IFLNK;
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if (S_ISDIR(mode) || S_ISGITLINK(mode))
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return S_IFGITLINK;
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return S_IFREG | ce_permissions(mode);
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}
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static inline unsigned int ce_mode_from_stat(struct cache_entry *ce, unsigned int mode)
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{
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extern int trust_executable_bit, has_symlinks;
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if (!has_symlinks && S_ISREG(mode) &&
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ce && S_ISLNK(ce->ce_mode))
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return ce->ce_mode;
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if (!trust_executable_bit && S_ISREG(mode)) {
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if (ce && S_ISREG(ce->ce_mode))
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return ce->ce_mode;
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return create_ce_mode(0666);
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}
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return create_ce_mode(mode);
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}
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static inline int ce_to_dtype(const struct cache_entry *ce)
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{
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unsigned ce_mode = ntohl(ce->ce_mode);
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if (S_ISREG(ce_mode))
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return DT_REG;
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else if (S_ISDIR(ce_mode) || S_ISGITLINK(ce_mode))
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return DT_DIR;
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else if (S_ISLNK(ce_mode))
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return DT_LNK;
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else
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return DT_UNKNOWN;
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}
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#define canon_mode(mode) \
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(S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \
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S_ISLNK(mode) ? S_IFLNK : S_ISDIR(mode) ? S_IFDIR : S_IFGITLINK)
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#define flexible_size(STRUCT,len) ((offsetof(struct STRUCT,name) + (len) + 8) & ~7)
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#define cache_entry_size(len) flexible_size(cache_entry,len)
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#define ondisk_cache_entry_size(len) flexible_size(ondisk_cache_entry,len)
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#define ondisk_cache_entry_extended_size(len) flexible_size(ondisk_cache_entry_extended,len)
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struct index_state {
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struct cache_entry **cache;
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unsigned int cache_nr, cache_alloc, cache_changed;
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struct cache_tree *cache_tree;
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struct cache_time timestamp;
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void *alloc;
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unsigned name_hash_initialized : 1,
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initialized : 1;
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struct hash_table name_hash;
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};
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extern struct index_state the_index;
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/* Name hashing */
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extern void add_name_hash(struct index_state *istate, struct cache_entry *ce);
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/*
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* We don't actually *remove* it, we can just mark it invalid so that
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* we won't find it in lookups.
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*
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* Not only would we have to search the lists (simple enough), but
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* we'd also have to rehash other hash buckets in case this makes the
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* hash bucket empty (common). So it's much better to just mark
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* it.
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*/
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static inline void remove_name_hash(struct cache_entry *ce)
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{
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ce->ce_flags |= CE_UNHASHED;
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}
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#ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
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#define active_cache (the_index.cache)
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#define active_nr (the_index.cache_nr)
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#define active_alloc (the_index.cache_alloc)
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#define active_cache_changed (the_index.cache_changed)
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#define active_cache_tree (the_index.cache_tree)
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#define read_cache() read_index(&the_index)
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#define read_cache_from(path) read_index_from(&the_index, (path))
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#define read_cache_preload(pathspec) read_index_preload(&the_index, (pathspec))
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#define is_cache_unborn() is_index_unborn(&the_index)
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#define read_cache_unmerged() read_index_unmerged(&the_index)
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#define write_cache(newfd, cache, entries) write_index(&the_index, (newfd))
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#define discard_cache() discard_index(&the_index)
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#define unmerged_cache() unmerged_index(&the_index)
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#define cache_name_pos(name, namelen) index_name_pos(&the_index,(name),(namelen))
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#define add_cache_entry(ce, option) add_index_entry(&the_index, (ce), (option))
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#define rename_cache_entry_at(pos, new_name) rename_index_entry_at(&the_index, (pos), (new_name))
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#define remove_cache_entry_at(pos) remove_index_entry_at(&the_index, (pos))
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#define remove_file_from_cache(path) remove_file_from_index(&the_index, (path))
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#define add_to_cache(path, st, flags) add_to_index(&the_index, (path), (st), (flags))
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#define add_file_to_cache(path, flags) add_file_to_index(&the_index, (path), (flags))
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#define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL, NULL)
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#define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options))
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#define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options))
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#define cache_name_exists(name, namelen, igncase) index_name_exists(&the_index, (name), (namelen), (igncase))
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#define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen))
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#endif
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enum object_type {
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OBJ_BAD = -1,
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OBJ_NONE = 0,
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OBJ_COMMIT = 1,
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OBJ_TREE = 2,
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OBJ_BLOB = 3,
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OBJ_TAG = 4,
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/* 5 for future expansion */
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OBJ_OFS_DELTA = 6,
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OBJ_REF_DELTA = 7,
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OBJ_ANY,
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OBJ_MAX,
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};
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static inline enum object_type object_type(unsigned int mode)
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{
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return S_ISDIR(mode) ? OBJ_TREE :
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S_ISGITLINK(mode) ? OBJ_COMMIT :
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OBJ_BLOB;
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}
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#define GIT_DIR_ENVIRONMENT "GIT_DIR"
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#define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
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#define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
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#define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
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#define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
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#define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE"
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#define TEMPLATE_DIR_ENVIRONMENT "GIT_TEMPLATE_DIR"
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#define CONFIG_ENVIRONMENT "GIT_CONFIG"
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#define EXEC_PATH_ENVIRONMENT "GIT_EXEC_PATH"
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#define CEILING_DIRECTORIES_ENVIRONMENT "GIT_CEILING_DIRECTORIES"
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#define NO_REPLACE_OBJECTS_ENVIRONMENT "GIT_NO_REPLACE_OBJECTS"
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#define GITATTRIBUTES_FILE ".gitattributes"
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#define INFOATTRIBUTES_FILE "info/attributes"
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#define ATTRIBUTE_MACRO_PREFIX "[attr]"
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#define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF"
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#define GIT_NOTES_DEFAULT_REF "refs/notes/commits"
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extern int is_bare_repository_cfg;
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extern int is_bare_repository(void);
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extern int is_inside_git_dir(void);
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extern char *git_work_tree_cfg;
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extern int is_inside_work_tree(void);
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extern int have_git_dir(void);
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extern const char *get_git_dir(void);
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extern char *get_object_directory(void);
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extern char *get_index_file(void);
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extern char *get_graft_file(void);
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extern int set_git_dir(const char *path);
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extern const char *get_git_work_tree(void);
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extern const char *read_gitfile_gently(const char *path);
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extern void set_git_work_tree(const char *tree);
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#define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
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extern const char **get_pathspec(const char *prefix, const char **pathspec);
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extern void setup_work_tree(void);
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extern const char *setup_git_directory_gently(int *);
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extern const char *setup_git_directory(void);
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extern const char *prefix_path(const char *prefix, int len, const char *path);
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extern const char *prefix_filename(const char *prefix, int len, const char *path);
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extern int check_filename(const char *prefix, const char *name);
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extern void verify_filename(const char *prefix, const char *name);
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extern void verify_non_filename(const char *prefix, const char *name);
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#define INIT_DB_QUIET 0x0001
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extern int init_db(const char *template_dir, unsigned int flags);
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#define alloc_nr(x) (((x)+16)*3/2)
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/*
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* Realloc the buffer pointed at by variable 'x' so that it can hold
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* at least 'nr' entries; the number of entries currently allocated
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* is 'alloc', using the standard growing factor alloc_nr() macro.
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*
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* DO NOT USE any expression with side-effect for 'x' or 'alloc'.
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*/
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#define ALLOC_GROW(x, nr, alloc) \
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do { \
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if ((nr) > alloc) { \
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if (alloc_nr(alloc) < (nr)) \
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alloc = (nr); \
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else \
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alloc = alloc_nr(alloc); \
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x = xrealloc((x), alloc * sizeof(*(x))); \
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} \
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} while(0)
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/* Initialize and use the cache information */
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extern int read_index(struct index_state *);
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extern int read_index_preload(struct index_state *, const char **pathspec);
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extern int read_index_from(struct index_state *, const char *path);
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extern int is_index_unborn(struct index_state *);
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extern int read_index_unmerged(struct index_state *);
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extern int write_index(struct index_state *, int newfd);
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extern int discard_index(struct index_state *);
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extern int unmerged_index(const struct index_state *);
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extern int verify_path(const char *path);
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extern struct cache_entry *index_name_exists(struct index_state *istate, const char *name, int namelen, int igncase);
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extern int index_name_pos(const struct index_state *, const char *name, int namelen);
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#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, int refresh);
|
|
extern int ce_same_name(struct cache_entry *a, struct cache_entry *b);
|
|
extern int index_name_is_other(const struct index_state *, const char *, int);
|
|
|
|
/* 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
|
|
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_IN_PORCELAIN 0x0020 /* user friendly output, not "needs update" */
|
|
extern int refresh_index(struct index_state *, unsigned int flags, const char **pathspec, char *seen, 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 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 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 const char *apply_default_ignorewhitespace;
|
|
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 read_replace_refs;
|
|
extern int fsync_object_files;
|
|
extern int core_preload_index;
|
|
extern int core_apply_sparse_checkout;
|
|
|
|
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,
|
|
};
|
|
|
|
enum push_default_type {
|
|
PUSH_DEFAULT_NOTHING = 0,
|
|
PUSH_DEFAULT_MATCHING,
|
|
PUSH_DEFAULT_TRACKING,
|
|
PUSH_DEFAULT_CURRENT,
|
|
};
|
|
|
|
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)));
|
|
|
|
/* 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);
|
|
}
|
|
|
|
#define EMPTY_TREE_SHA1_HEX \
|
|
"4b825dc642cb6eb9a060e54bf8d69288fbee4904"
|
|
#define EMPTY_TREE_SHA1_BIN \
|
|
"\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60" \
|
|
"\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04"
|
|
|
|
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);
|
|
|
|
/*
|
|
* 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 set_shared_perm(const char *path, int mode);
|
|
#define adjust_shared_perm(path) set_shared_perm((path), 0)
|
|
int safe_create_leading_directories(char *path);
|
|
int safe_create_leading_directories_const(const char *path);
|
|
extern char *expand_user_path(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);
|
|
}
|
|
int is_directory(const char *);
|
|
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_path_copy(char *dst, const char *src);
|
|
int longest_ancestor_length(const char *path, const char *prefix_list);
|
|
char *strip_path_suffix(const char *path, const char *suffix);
|
|
int daemon_avoid_alias(const char *path);
|
|
|
|
/* 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_repl(const unsigned char *sha1, enum object_type *type, unsigned long *size, const unsigned char **replacement);
|
|
static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
|
|
{
|
|
return read_sha1_file_repl(sha1, type, size, NULL);
|
|
}
|
|
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);
|
|
|
|
/* 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);
|
|
extern int has_sha1_file(const unsigned char *sha1);
|
|
extern int has_loose_object_nonlocal(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_1(const char *str, unsigned char *sha1, unsigned *mode, int gently, const char *prefix);
|
|
static inline int get_sha1_with_mode(const char *str, unsigned char *sha1, unsigned *mode)
|
|
{
|
|
return get_sha1_with_mode_1(str, sha1, mode, 1, NULL);
|
|
}
|
|
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 interpret_branch_name(const char *str, struct strbuf *);
|
|
extern int get_sha1_mb(const char *str, unsigned char *sha1);
|
|
|
|
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,
|
|
DATE_RAW
|
|
};
|
|
|
|
const char *show_date(unsigned long time, int timezone, enum date_mode mode);
|
|
const char *show_date_relative(unsigned long time, int tz,
|
|
const struct timeval *now,
|
|
char *timebuf,
|
|
size_t timebuf_size);
|
|
int parse_date(const char *date, char *buf, int bufsize);
|
|
void datestamp(char *buf, int bufsize);
|
|
unsigned long approxidate(const char *);
|
|
unsigned long approxidate_relative(const char *date, const struct timeval *now);
|
|
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);
|
|
extern const char *git_editor(void);
|
|
extern const char *git_pager(void);
|
|
|
|
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);
|
|
|
|
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 has_symlink_or_noent_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 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;
|
|
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(const 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);
|
|
struct extra_have_objects {
|
|
int nr, alloc;
|
|
unsigned char (*array)[20];
|
|
};
|
|
extern struct ref **get_remote_heads(int in, struct ref **list, int nr_match, char **match, unsigned int flags, struct extra_have_objects *);
|
|
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);
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extern void pack_report(void);
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extern int open_pack_index(struct packed_git *);
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extern unsigned char *use_pack(struct packed_git *, struct pack_window **, off_t, unsigned int *);
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extern void close_pack_windows(struct packed_git *);
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extern void unuse_pack(struct pack_window **);
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extern void free_pack_by_name(const char *);
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extern void clear_delta_base_cache(void);
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extern struct packed_git *add_packed_git(const char *, int, int);
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extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t);
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extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t);
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extern off_t find_pack_entry_one(const unsigned char *, struct packed_git *);
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extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *);
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extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep);
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extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t);
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extern const char *packed_object_info_detail(struct packed_git *, off_t, unsigned long *, unsigned long *, unsigned int *, unsigned char *);
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/* Dumb servers support */
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extern int update_server_info(int);
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typedef int (*config_fn_t)(const char *, const char *, void *);
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extern int git_default_config(const char *, const char *, void *);
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extern int git_config_from_file(config_fn_t fn, const char *, void *);
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extern int git_config(config_fn_t fn, void *);
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extern int git_parse_ulong(const char *, unsigned long *);
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extern int git_config_int(const char *, const char *);
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extern unsigned long git_config_ulong(const char *, const char *);
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extern int git_config_bool_or_int(const char *, const char *, int *);
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extern int git_config_bool(const char *, const char *);
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extern int git_config_string(const char **, const char *, const char *);
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extern int git_config_pathname(const char **, const char *, const char *);
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extern int git_config_set(const char *, const char *);
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extern int git_config_set_multivar(const char *, const char *, const char *, int);
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extern int git_config_rename_section(const char *, const char *);
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extern const char *git_etc_gitconfig(void);
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extern int check_repository_format_version(const char *var, const char *value, void *cb);
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extern int git_config_system(void);
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extern int git_config_global(void);
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extern int config_error_nonbool(const char *);
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extern const char *config_exclusive_filename;
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#define MAX_GITNAME (1000)
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extern char git_default_email[MAX_GITNAME];
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extern char git_default_name[MAX_GITNAME];
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#define IDENT_NAME_GIVEN 01
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#define IDENT_MAIL_GIVEN 02
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#define IDENT_ALL_GIVEN (IDENT_NAME_GIVEN|IDENT_MAIL_GIVEN)
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extern int user_ident_explicitly_given;
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extern int user_ident_sufficiently_given(void);
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extern const char *git_commit_encoding;
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extern const char *git_log_output_encoding;
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extern const char *git_mailmap_file;
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/* IO helper functions */
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extern void maybe_flush_or_die(FILE *, const char *);
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extern int copy_fd(int ifd, int ofd);
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extern int copy_file(const char *dst, const char *src, int mode);
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extern int copy_file_with_time(const char *dst, const char *src, int mode);
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extern void write_or_die(int fd, const void *buf, size_t count);
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extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg);
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extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg);
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extern void fsync_or_die(int fd, const char *);
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|
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extern ssize_t read_in_full(int fd, void *buf, size_t count);
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|
extern ssize_t write_in_full(int fd, const void *buf, size_t count);
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static inline ssize_t write_str_in_full(int fd, const char *str)
|
|
{
|
|
return write_in_full(fd, str, strlen(str));
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|
}
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|
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/* pager.c */
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extern void setup_pager(void);
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|
extern const char *pager_program;
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|
extern int pager_in_use(void);
|
|
extern int pager_use_color;
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|
|
|
extern const char *editor_program;
|
|
extern const char *excludes_file;
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|
|
|
/* base85 */
|
|
int decode_85(char *dst, const char *line, int linelen);
|
|
void encode_85(char *buf, const unsigned char *data, int bytes);
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|
|
/* 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);
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|
|
|
/* 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, ...);
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|
|
|
/* 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_BLANK_AT_EOL 01
|
|
#define WS_SPACE_BEFORE_TAB 02
|
|
#define WS_INDENT_WITH_NON_TAB 04
|
|
#define WS_CR_AT_EOL 010
|
|
#define WS_BLANK_AT_EOF 020
|
|
#define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF)
|
|
#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 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 */
|