зеркало из https://github.com/microsoft/git.git
1572 строки
56 KiB
C
1572 строки
56 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 "hashmap.h"
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#include "advice.h"
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#include "gettext.h"
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#include "convert.h"
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#include "trace.h"
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#include "string-list.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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typedef struct git_zstream {
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z_stream z;
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unsigned long avail_in;
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unsigned long avail_out;
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unsigned long total_in;
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unsigned long total_out;
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unsigned char *next_in;
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unsigned char *next_out;
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} git_zstream;
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void git_inflate_init(git_zstream *);
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void git_inflate_init_gzip_only(git_zstream *);
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void git_inflate_end(git_zstream *);
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int git_inflate(git_zstream *, int flush);
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void git_deflate_init(git_zstream *, int level);
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void git_deflate_init_gzip(git_zstream *, int level);
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void git_deflate_init_raw(git_zstream *, int level);
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void git_deflate_end(git_zstream *);
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int git_deflate_abort(git_zstream *);
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int git_deflate_end_gently(git_zstream *);
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int git_deflate(git_zstream *, int flush);
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unsigned long git_deflate_bound(git_zstream *, unsigned long);
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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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* Some mode bits are also used internally for computations.
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*
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* They *must* not overlap with any valid modes, and they *must* not be emitted
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* to outside world - i.e. appear on disk or network. In other words, it's just
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* temporary fields, which we internally use, but they have to stay in-house.
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*
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* ( such approach is valid, as standard S_IF* fits into 16 bits, and in Git
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* codebase mode is `unsigned int` which is assumed to be at least 32 bits )
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*/
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/* used internally in tree-diff */
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#define S_DIFFTREE_IFXMIN_NEQ 0x80000000
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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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uint32_t hdr_signature;
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uint32_t hdr_version;
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uint32_t hdr_entries;
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};
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#define INDEX_FORMAT_LB 2
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#define INDEX_FORMAT_UB 4
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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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uint32_t sec;
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uint32_t nsec;
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};
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struct stat_data {
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struct cache_time sd_ctime;
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struct cache_time sd_mtime;
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unsigned int sd_dev;
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unsigned int sd_ino;
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unsigned int sd_uid;
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unsigned int sd_gid;
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unsigned int sd_size;
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};
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struct cache_entry {
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struct hashmap_entry ent;
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struct stat_data ce_stat_data;
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unsigned int ce_mode;
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unsigned int ce_flags;
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unsigned int ce_namelen;
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unsigned int index; /* for link extension */
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unsigned char sha1[20];
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char name[FLEX_ARRAY]; /* more */
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};
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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 0xFFFF0FFF 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 (1 << 16)
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#define CE_REMOVE (1 << 17)
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#define CE_UPTODATE (1 << 18)
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#define CE_ADDED (1 << 19)
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#define CE_HASHED (1 << 20)
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#define CE_WT_REMOVE (1 << 22) /* remove in work directory */
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#define CE_CONFLICTED (1 << 23)
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#define CE_UNPACKED (1 << 24)
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#define CE_NEW_SKIP_WORKTREE (1 << 25)
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/* used to temporarily mark paths matched by pathspecs */
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#define CE_MATCHED (1 << 26)
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#define CE_UPDATE_IN_BASE (1 << 27)
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#define CE_STRIP_NAME (1 << 28)
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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 (1 << 29)
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#define CE_SKIP_WORKTREE (1 << 30)
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/* CE_EXTENDED2 is for future extension */
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#define CE_EXTENDED2 (1 << 31)
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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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struct pathspec;
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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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static inline void copy_cache_entry(struct cache_entry *dst,
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const struct cache_entry *src)
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{
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unsigned int state = dst->ce_flags & CE_HASHED;
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/* Don't copy hash chain and name */
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memcpy(&dst->ce_stat_data, &src->ce_stat_data,
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offsetof(struct cache_entry, name) -
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offsetof(struct cache_entry, ce_stat_data));
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/* Restore the hash state */
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dst->ce_flags = (dst->ce_flags & ~CE_HASHED) | state;
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}
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static inline unsigned create_ce_flags(unsigned stage)
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{
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return (stage << CE_STAGESHIFT);
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}
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#define ce_namelen(ce) ((ce)->ce_namelen)
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#define ce_size(ce) 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(const struct cache_entry *ce,
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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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static inline unsigned int canon_mode(unsigned int mode)
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{
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if (S_ISREG(mode))
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return S_IFREG | ce_permissions(mode);
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if (S_ISLNK(mode))
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return S_IFLNK;
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if (S_ISDIR(mode))
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return S_IFDIR;
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return S_IFGITLINK;
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}
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#define cache_entry_size(len) (offsetof(struct cache_entry,name) + (len) + 1)
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#define SOMETHING_CHANGED (1 << 0) /* unclassified changes go here */
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#define CE_ENTRY_CHANGED (1 << 1)
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#define CE_ENTRY_REMOVED (1 << 2)
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#define CE_ENTRY_ADDED (1 << 3)
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#define RESOLVE_UNDO_CHANGED (1 << 4)
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#define CACHE_TREE_CHANGED (1 << 5)
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#define SPLIT_INDEX_ORDERED (1 << 6)
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struct split_index;
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struct index_state {
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struct cache_entry **cache;
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unsigned int version;
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unsigned int cache_nr, cache_alloc, cache_changed;
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struct string_list *resolve_undo;
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struct cache_tree *cache_tree;
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struct split_index *split_index;
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struct cache_time timestamp;
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unsigned name_hash_initialized : 1,
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initialized : 1;
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struct hashmap name_hash;
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struct hashmap dir_hash;
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unsigned char sha1[20];
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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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extern void remove_name_hash(struct index_state *istate, struct cache_entry *ce);
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extern void free_name_hash(struct index_state *istate);
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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 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_dir_exists(name, namelen) index_dir_exists(&the_index, (name), (namelen))
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#define cache_file_exists(name, namelen, igncase) index_file_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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#define resolve_undo_clear() resolve_undo_clear_index(&the_index)
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#define unmerge_cache_entry_at(at) unmerge_index_entry_at(&the_index, at)
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#define unmerge_cache(pathspec) unmerge_index(&the_index, pathspec)
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#define read_blob_data_from_cache(path, sz) read_blob_data_from_index(&the_index, (path), (sz))
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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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/* Double-check local_repo_env below if you add to this list. */
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#define GIT_DIR_ENVIRONMENT "GIT_DIR"
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#define GIT_NAMESPACE_ENVIRONMENT "GIT_NAMESPACE"
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#define GIT_WORK_TREE_ENVIRONMENT "GIT_WORK_TREE"
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#define GIT_PREFIX_ENVIRONMENT "GIT_PREFIX"
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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 GIT_SHALLOW_FILE_ENVIRONMENT "GIT_SHALLOW_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 CONFIG_DATA_ENVIRONMENT "GIT_CONFIG_PARAMETERS"
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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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#define GIT_NOTES_DISPLAY_REF_ENVIRONMENT "GIT_NOTES_DISPLAY_REF"
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#define GIT_NOTES_REWRITE_REF_ENVIRONMENT "GIT_NOTES_REWRITE_REF"
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#define GIT_NOTES_REWRITE_MODE_ENVIRONMENT "GIT_NOTES_REWRITE_MODE"
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#define GIT_LITERAL_PATHSPECS_ENVIRONMENT "GIT_LITERAL_PATHSPECS"
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#define GIT_GLOB_PATHSPECS_ENVIRONMENT "GIT_GLOB_PATHSPECS"
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#define GIT_NOGLOB_PATHSPECS_ENVIRONMENT "GIT_NOGLOB_PATHSPECS"
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#define GIT_ICASE_PATHSPECS_ENVIRONMENT "GIT_ICASE_PATHSPECS"
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/*
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* This environment variable is expected to contain a boolean indicating
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* whether we should or should not treat:
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*
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* GIT_DIR=foo.git git ...
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*
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* as if GIT_WORK_TREE=. was given. It's not expected that users will make use
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* of this, but we use it internally to communicate to sub-processes that we
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* are in a bare repo. If not set, defaults to true.
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*/
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#define GIT_IMPLICIT_WORK_TREE_ENVIRONMENT "GIT_IMPLICIT_WORK_TREE"
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/*
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* Repository-local GIT_* environment variables; these will be cleared
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* when git spawns a sub-process that runs inside another repository.
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* The array is NULL-terminated, which makes it easy to pass in the "env"
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* parameter of a run-command invocation, or to do a simple walk.
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*/
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extern const char * const local_repo_env[];
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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 const char *get_git_dir(void);
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extern int is_git_directory(const char *path);
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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_namespace(void);
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extern const char *strip_namespace(const char *namespaced_ref);
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extern const char *get_git_work_tree(void);
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extern const char *read_gitfile(const char *path);
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extern const char *resolve_gitdir(const char *suspect);
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extern void set_git_work_tree(const char *tree);
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|
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#define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
|
|
|
|
extern const char **get_pathspec(const char *prefix, const char **pathspec);
|
|
extern void setup_work_tree(void);
|
|
extern const char *setup_git_directory_gently(int *);
|
|
extern const char *setup_git_directory(void);
|
|
extern char *prefix_path(const char *prefix, int len, const char *path);
|
|
extern char *prefix_path_gently(const char *prefix, int len, int *remaining, const char *path);
|
|
extern const char *prefix_filename(const char *prefix, int len, const char *path);
|
|
extern int check_filename(const char *prefix, const char *name);
|
|
extern void verify_filename(const char *prefix,
|
|
const char *name,
|
|
int diagnose_misspelt_rev);
|
|
extern void verify_non_filename(const char *prefix, const char *name);
|
|
extern int path_inside_repo(const char *prefix, const char *path);
|
|
|
|
#define INIT_DB_QUIET 0x0001
|
|
|
|
extern int set_git_dir_init(const char *git_dir, const char *real_git_dir, int);
|
|
extern int init_db(const char *template_dir, unsigned int flags);
|
|
|
|
extern void sanitize_stdfds(void);
|
|
extern int daemonize(void);
|
|
|
|
#define alloc_nr(x) (((x)+16)*3/2)
|
|
|
|
/*
|
|
* Realloc the buffer pointed at by variable 'x' so that it can hold
|
|
* at least 'nr' entries; the number of entries currently allocated
|
|
* is 'alloc', using the standard growing factor alloc_nr() macro.
|
|
*
|
|
* DO NOT USE any expression with side-effect for 'x', 'nr', or 'alloc'.
|
|
*/
|
|
#define ALLOC_GROW(x, nr, alloc) \
|
|
do { \
|
|
if ((nr) > alloc) { \
|
|
if (alloc_nr(alloc) < (nr)) \
|
|
alloc = (nr); \
|
|
else \
|
|
alloc = alloc_nr(alloc); \
|
|
x = xrealloc((x), alloc * sizeof(*(x))); \
|
|
} \
|
|
} while (0)
|
|
|
|
/* Initialize and use the cache information */
|
|
struct lock_file;
|
|
extern int read_index(struct index_state *);
|
|
extern int read_index_preload(struct index_state *, const struct pathspec *pathspec);
|
|
extern int do_read_index(struct index_state *istate, const char *path,
|
|
int must_exist); /* for testting only! */
|
|
extern int read_index_from(struct index_state *, const char *path);
|
|
extern int is_index_unborn(struct index_state *);
|
|
extern int read_index_unmerged(struct index_state *);
|
|
#define COMMIT_LOCK (1 << 0)
|
|
#define CLOSE_LOCK (1 << 1)
|
|
extern int write_locked_index(struct index_state *, struct lock_file *lock, unsigned flags);
|
|
extern int discard_index(struct index_state *);
|
|
extern int unmerged_index(const struct index_state *);
|
|
extern int verify_path(const char *path);
|
|
extern struct cache_entry *index_dir_exists(struct index_state *istate, const char *name, int namelen);
|
|
extern struct cache_entry *index_file_exists(struct index_state *istate, const char *name, int namelen, int igncase);
|
|
extern int index_name_pos(const struct index_state *, const char *name, int namelen);
|
|
#define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */
|
|
#define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
|
|
#define ADD_CACHE_SKIP_DFCHECK 4 /* Ok to skip DF conflict checks */
|
|
#define ADD_CACHE_JUST_APPEND 8 /* Append only; tree.c::read_tree() */
|
|
#define ADD_CACHE_NEW_ONLY 16 /* Do not replace existing ones */
|
|
#define ADD_CACHE_KEEP_CACHE_TREE 32 /* Do not invalidate cache-tree */
|
|
extern int add_index_entry(struct index_state *, struct cache_entry *ce, int option);
|
|
extern void rename_index_entry_at(struct index_state *, int pos, const char *new_name);
|
|
extern int remove_index_entry_at(struct index_state *, int pos);
|
|
extern void remove_marked_cache_entries(struct index_state *istate);
|
|
extern int remove_file_from_index(struct index_state *, const char *path);
|
|
#define ADD_CACHE_VERBOSE 1
|
|
#define ADD_CACHE_PRETEND 2
|
|
#define ADD_CACHE_IGNORE_ERRORS 4
|
|
#define ADD_CACHE_IGNORE_REMOVAL 8
|
|
#define ADD_CACHE_INTENT 16
|
|
extern int add_to_index(struct index_state *, const char *path, struct stat *, int flags);
|
|
extern int add_file_to_index(struct index_state *, const char *path, int flags);
|
|
extern struct cache_entry *make_cache_entry(unsigned int mode, const unsigned char *sha1, const char *path, int stage, unsigned int refresh_options);
|
|
extern int ce_same_name(const struct cache_entry *a, const struct cache_entry *b);
|
|
extern void set_object_name_for_intent_to_add_entry(struct cache_entry *ce);
|
|
extern int index_name_is_other(const struct index_state *, const char *, int);
|
|
extern void *read_blob_data_from_index(struct index_state *, const char *, unsigned long *);
|
|
|
|
/* do stat comparison even if CE_VALID is true */
|
|
#define CE_MATCH_IGNORE_VALID 01
|
|
/* do not check the contents but report dirty on racily-clean entries */
|
|
#define CE_MATCH_RACY_IS_DIRTY 02
|
|
/* do stat comparison even if CE_SKIP_WORKTREE is true */
|
|
#define CE_MATCH_IGNORE_SKIP_WORKTREE 04
|
|
/* ignore non-existent files during stat update */
|
|
#define CE_MATCH_IGNORE_MISSING 0x08
|
|
/* enable stat refresh */
|
|
#define CE_MATCH_REFRESH 0x10
|
|
extern int ie_match_stat(const struct index_state *, const struct cache_entry *, struct stat *, unsigned int);
|
|
extern int ie_modified(const struct index_state *, const struct cache_entry *, struct stat *, unsigned int);
|
|
|
|
#define HASH_WRITE_OBJECT 1
|
|
#define HASH_FORMAT_CHECK 2
|
|
extern int index_fd(unsigned char *sha1, int fd, struct stat *st, enum object_type type, const char *path, unsigned flags);
|
|
extern int index_path(unsigned char *sha1, const char *path, struct stat *st, unsigned flags);
|
|
|
|
/*
|
|
* Record to sd the data from st that we use to check whether a file
|
|
* might have changed.
|
|
*/
|
|
extern void fill_stat_data(struct stat_data *sd, struct stat *st);
|
|
|
|
/*
|
|
* Return 0 if st is consistent with a file not having been changed
|
|
* since sd was filled. If there are differences, return a
|
|
* combination of MTIME_CHANGED, CTIME_CHANGED, OWNER_CHANGED,
|
|
* INODE_CHANGED, and DATA_CHANGED.
|
|
*/
|
|
extern int match_stat_data(const struct stat_data *sd, struct stat *st);
|
|
|
|
extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);
|
|
|
|
#define REFRESH_REALLY 0x0001 /* ignore_valid */
|
|
#define REFRESH_UNMERGED 0x0002 /* allow unmerged */
|
|
#define REFRESH_QUIET 0x0004 /* be quiet about it */
|
|
#define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */
|
|
#define REFRESH_IGNORE_SUBMODULES 0x0010 /* ignore submodules */
|
|
#define REFRESH_IN_PORCELAIN 0x0020 /* user friendly output, not "needs update" */
|
|
extern int refresh_index(struct index_state *, unsigned int flags, const struct pathspec *pathspec, char *seen, const char *header_msg);
|
|
|
|
struct lock_file {
|
|
struct lock_file *next;
|
|
int fd;
|
|
pid_t owner;
|
|
char on_list;
|
|
char filename[PATH_MAX];
|
|
};
|
|
#define LOCK_DIE_ON_ERROR 1
|
|
#define LOCK_NODEREF 2
|
|
extern int unable_to_lock_error(const char *path, int err);
|
|
extern void unable_to_lock_message(const char *path, int err,
|
|
struct strbuf *buf);
|
|
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 reopen_lock_file(struct lock_file *);
|
|
extern void update_index_if_able(struct index_state *, struct lock_file *);
|
|
|
|
extern int hold_locked_index(struct lock_file *, int);
|
|
extern void set_alternate_index_output(const char *);
|
|
extern int close_lock_file(struct lock_file *);
|
|
extern void rollback_lock_file(struct lock_file *);
|
|
extern int delete_ref(const char *, const unsigned char *sha1, int delopt);
|
|
|
|
/* Environment bits from configuration mechanism */
|
|
extern int trust_executable_bit;
|
|
extern int trust_ctime;
|
|
extern int check_stat;
|
|
extern int quote_path_fully;
|
|
extern int has_symlinks;
|
|
extern int minimum_abbrev, default_abbrev;
|
|
extern int ignore_case;
|
|
extern int assume_unchanged;
|
|
extern int prefer_symlink_refs;
|
|
extern int log_all_ref_updates;
|
|
extern int warn_ambiguous_refs;
|
|
extern int warn_on_object_refname_ambiguity;
|
|
extern int shared_repository;
|
|
extern const char *apply_default_whitespace;
|
|
extern const char *apply_default_ignorewhitespace;
|
|
extern const char *git_attributes_file;
|
|
extern int zlib_compression_level;
|
|
extern int core_compression_level;
|
|
extern int core_compression_seen;
|
|
extern size_t packed_git_window_size;
|
|
extern size_t packed_git_limit;
|
|
extern size_t delta_base_cache_limit;
|
|
extern unsigned long big_file_threshold;
|
|
extern unsigned long pack_size_limit_cfg;
|
|
|
|
/*
|
|
* Do replace refs need to be checked this run? This variable is
|
|
* initialized to true unless --no-replace-object is used or
|
|
* $GIT_NO_REPLACE_OBJECTS is set, but is set to false by some
|
|
* commands that do not want replace references to be active. As an
|
|
* optimization it is also set to false if replace references have
|
|
* been sought but there were none.
|
|
*/
|
|
extern int check_replace_refs;
|
|
|
|
extern int fsync_object_files;
|
|
extern int core_preload_index;
|
|
extern int core_apply_sparse_checkout;
|
|
extern int precomposed_unicode;
|
|
|
|
/*
|
|
* The character that begins a commented line in user-editable file
|
|
* that is subject to stripspace.
|
|
*/
|
|
extern char comment_line_char;
|
|
extern int auto_comment_line_char;
|
|
|
|
enum branch_track {
|
|
BRANCH_TRACK_UNSPECIFIED = -1,
|
|
BRANCH_TRACK_NEVER = 0,
|
|
BRANCH_TRACK_REMOTE,
|
|
BRANCH_TRACK_ALWAYS,
|
|
BRANCH_TRACK_EXPLICIT,
|
|
BRANCH_TRACK_OVERRIDE
|
|
};
|
|
|
|
enum rebase_setup_type {
|
|
AUTOREBASE_NEVER = 0,
|
|
AUTOREBASE_LOCAL,
|
|
AUTOREBASE_REMOTE,
|
|
AUTOREBASE_ALWAYS
|
|
};
|
|
|
|
enum push_default_type {
|
|
PUSH_DEFAULT_NOTHING = 0,
|
|
PUSH_DEFAULT_MATCHING,
|
|
PUSH_DEFAULT_SIMPLE,
|
|
PUSH_DEFAULT_UPSTREAM,
|
|
PUSH_DEFAULT_CURRENT,
|
|
PUSH_DEFAULT_UNSPECIFIED
|
|
};
|
|
|
|
extern enum branch_track git_branch_track;
|
|
extern enum rebase_setup_type autorebase;
|
|
extern enum push_default_type push_default;
|
|
|
|
enum object_creation_mode {
|
|
OBJECT_CREATION_USES_HARDLINKS = 0,
|
|
OBJECT_CREATION_USES_RENAMES = 1
|
|
};
|
|
|
|
extern enum object_creation_mode object_creation_mode;
|
|
|
|
extern char *notes_ref_name;
|
|
|
|
extern int grafts_replace_parents;
|
|
|
|
#define GIT_REPO_VERSION 0
|
|
extern int repository_format_version;
|
|
extern int check_repository_format(void);
|
|
|
|
#define MTIME_CHANGED 0x0001
|
|
#define CTIME_CHANGED 0x0002
|
|
#define OWNER_CHANGED 0x0004
|
|
#define MODE_CHANGED 0x0008
|
|
#define INODE_CHANGED 0x0010
|
|
#define DATA_CHANGED 0x0020
|
|
#define TYPE_CHANGED 0x0040
|
|
|
|
extern char *mksnpath(char *buf, size_t n, const char *fmt, ...)
|
|
__attribute__((format (printf, 3, 4)));
|
|
extern char *git_snpath(char *buf, size_t n, const char *fmt, ...)
|
|
__attribute__((format (printf, 3, 4)));
|
|
extern char *git_pathdup(const char *fmt, ...)
|
|
__attribute__((format (printf, 1, 2)));
|
|
extern char *mkpathdup(const char *fmt, ...)
|
|
__attribute__((format (printf, 1, 2)));
|
|
|
|
/* Return a statically allocated filename matching the sha1 signature */
|
|
extern char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
|
|
extern char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
|
|
extern char *git_path_submodule(const char *path, const char *fmt, ...)
|
|
__attribute__((format (printf, 2, 3)));
|
|
|
|
/*
|
|
* Return the name of the file in the local object database that would
|
|
* be used to store a loose object with the specified sha1. The
|
|
* return value is a pointer to a statically allocated buffer that is
|
|
* overwritten each time the function is called.
|
|
*/
|
|
extern const char *sha1_file_name(const unsigned char *sha1);
|
|
|
|
/*
|
|
* Return the name of the (local) packfile with the specified sha1 in
|
|
* its name. The return value is a pointer to memory that is
|
|
* overwritten each time this function is called.
|
|
*/
|
|
extern char *sha1_pack_name(const unsigned char *sha1);
|
|
|
|
/*
|
|
* Return the name of the (local) pack index file with the specified
|
|
* sha1 in its name. The return value is a pointer to memory that is
|
|
* overwritten each time this function is called.
|
|
*/
|
|
extern char *sha1_pack_index_name(const unsigned char *sha1);
|
|
|
|
extern const char *find_unique_abbrev(const unsigned char *sha1, int);
|
|
extern const unsigned char null_sha1[20];
|
|
|
|
static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 20; i++, sha1++, sha2++) {
|
|
if (*sha1 != *sha2)
|
|
return *sha1 - *sha2;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int is_null_sha1(const unsigned char *sha1)
|
|
{
|
|
return !hashcmp(sha1, null_sha1);
|
|
}
|
|
|
|
static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
|
|
{
|
|
memcpy(sha_dst, sha_src, 20);
|
|
}
|
|
static inline void hashclr(unsigned char *hash)
|
|
{
|
|
memset(hash, 0, 20);
|
|
}
|
|
|
|
#define EMPTY_TREE_SHA1_HEX \
|
|
"4b825dc642cb6eb9a060e54bf8d69288fbee4904"
|
|
#define EMPTY_TREE_SHA1_BIN_LITERAL \
|
|
"\x4b\x82\x5d\xc6\x42\xcb\x6e\xb9\xa0\x60" \
|
|
"\xe5\x4b\xf8\xd6\x92\x88\xfb\xee\x49\x04"
|
|
#define EMPTY_TREE_SHA1_BIN \
|
|
((const unsigned char *) EMPTY_TREE_SHA1_BIN_LITERAL)
|
|
|
|
#define EMPTY_BLOB_SHA1_HEX \
|
|
"e69de29bb2d1d6434b8b29ae775ad8c2e48c5391"
|
|
#define EMPTY_BLOB_SHA1_BIN_LITERAL \
|
|
"\xe6\x9d\xe2\x9b\xb2\xd1\xd6\x43\x4b\x8b" \
|
|
"\x29\xae\x77\x5a\xd8\xc2\xe4\x8c\x53\x91"
|
|
#define EMPTY_BLOB_SHA1_BIN \
|
|
((const unsigned char *) EMPTY_BLOB_SHA1_BIN_LITERAL)
|
|
|
|
static inline int is_empty_blob_sha1(const unsigned char *sha1)
|
|
{
|
|
return !hashcmp(sha1, EMPTY_BLOB_SHA1_BIN);
|
|
}
|
|
|
|
int git_mkstemp(char *path, size_t n, const char *template);
|
|
|
|
int git_mkstemps(char *path, size_t n, const char *template, int suffix_len);
|
|
|
|
/* set default permissions by passing mode arguments to open(2) */
|
|
int git_mkstemps_mode(char *pattern, int suffix_len, int mode);
|
|
int git_mkstemp_mode(char *pattern, int mode);
|
|
|
|
/*
|
|
* NOTE NOTE NOTE!!
|
|
*
|
|
* PERM_UMASK, OLD_PERM_GROUP and OLD_PERM_EVERYBODY enumerations must
|
|
* not be changed. Old repositories have core.sharedrepository written in
|
|
* numeric format, and therefore these values are preserved for compatibility
|
|
* reasons.
|
|
*/
|
|
enum sharedrepo {
|
|
PERM_UMASK = 0,
|
|
OLD_PERM_GROUP = 1,
|
|
OLD_PERM_EVERYBODY = 2,
|
|
PERM_GROUP = 0660,
|
|
PERM_EVERYBODY = 0664
|
|
};
|
|
int git_config_perm(const char *var, const char *value);
|
|
int adjust_shared_perm(const char *path);
|
|
|
|
/*
|
|
* Create the directory containing the named path, using care to be
|
|
* somewhat safe against races. Return one of the scld_error values
|
|
* to indicate success/failure.
|
|
*
|
|
* SCLD_VANISHED indicates that one of the ancestor directories of the
|
|
* path existed at one point during the function call and then
|
|
* suddenly vanished, probably because another process pruned the
|
|
* directory while we were working. To be robust against this kind of
|
|
* race, callers might want to try invoking the function again when it
|
|
* returns SCLD_VANISHED.
|
|
*/
|
|
enum scld_error {
|
|
SCLD_OK = 0,
|
|
SCLD_FAILED = -1,
|
|
SCLD_PERMS = -2,
|
|
SCLD_EXISTS = -3,
|
|
SCLD_VANISHED = -4
|
|
};
|
|
enum scld_error safe_create_leading_directories(char *path);
|
|
enum scld_error safe_create_leading_directories_const(const char *path);
|
|
|
|
int mkdir_in_gitdir(const char *path);
|
|
extern void home_config_paths(char **global, char **xdg, char *file);
|
|
extern char *expand_user_path(const char *path);
|
|
const char *enter_repo(const char *path, int strict);
|
|
static inline int is_absolute_path(const char *path)
|
|
{
|
|
return is_dir_sep(path[0]) || has_dos_drive_prefix(path);
|
|
}
|
|
int is_directory(const char *);
|
|
const char *real_path(const char *path);
|
|
const char *real_path_if_valid(const char *path);
|
|
const char *absolute_path(const char *path);
|
|
const char *remove_leading_path(const char *in, const char *prefix);
|
|
const char *relative_path(const char *in, const char *prefix, struct strbuf *sb);
|
|
int normalize_path_copy_len(char *dst, const char *src, int *prefix_len);
|
|
int normalize_path_copy(char *dst, const char *src);
|
|
int longest_ancestor_length(const char *path, struct string_list *prefixes);
|
|
char *strip_path_suffix(const char *path, const char *suffix);
|
|
int daemon_avoid_alias(const char *path);
|
|
|
|
/* object replacement */
|
|
#define LOOKUP_REPLACE_OBJECT 1
|
|
extern void *read_sha1_file_extended(const unsigned char *sha1, enum object_type *type, unsigned long *size, unsigned flag);
|
|
static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
|
|
{
|
|
return read_sha1_file_extended(sha1, type, size, LOOKUP_REPLACE_OBJECT);
|
|
}
|
|
|
|
/*
|
|
* This internal function is only declared here for the benefit of
|
|
* lookup_replace_object(). Please do not call it directly.
|
|
*/
|
|
extern const unsigned char *do_lookup_replace_object(const unsigned char *sha1);
|
|
|
|
/*
|
|
* If object sha1 should be replaced, return the replacement object's
|
|
* name (replaced recursively, if necessary). The return value is
|
|
* either sha1 or a pointer to a permanently-allocated value. When
|
|
* object replacement is suppressed, always return sha1.
|
|
*/
|
|
static inline const unsigned char *lookup_replace_object(const unsigned char *sha1)
|
|
{
|
|
if (!check_replace_refs)
|
|
return sha1;
|
|
return do_lookup_replace_object(sha1);
|
|
}
|
|
|
|
static inline const unsigned char *lookup_replace_object_extended(const unsigned char *sha1, unsigned flag)
|
|
{
|
|
if (!(flag & LOOKUP_REPLACE_OBJECT))
|
|
return sha1;
|
|
return lookup_replace_object(sha1);
|
|
}
|
|
|
|
/* Read and unpack a sha1 file into memory, write memory to a sha1 file */
|
|
extern int sha1_object_info(const unsigned char *, unsigned long *);
|
|
extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1);
|
|
extern int write_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *return_sha1);
|
|
extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *);
|
|
extern int force_object_loose(const unsigned char *sha1, time_t mtime);
|
|
extern int git_open_noatime(const char *name);
|
|
extern void *map_sha1_file(const unsigned char *sha1, unsigned long *size);
|
|
extern int unpack_sha1_header(git_zstream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz);
|
|
extern int parse_sha1_header(const char *hdr, unsigned long *sizep);
|
|
|
|
/* global flag to enable extra checks when accessing packed objects */
|
|
extern int do_check_packed_object_crc;
|
|
|
|
extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type);
|
|
|
|
extern int move_temp_to_file(const char *tmpfile, const char *filename);
|
|
|
|
extern int has_sha1_pack(const unsigned char *sha1);
|
|
|
|
/*
|
|
* Return true iff we have an object named sha1, whether local or in
|
|
* an alternate object database, and whether packed or loose. This
|
|
* function does not respect replace references.
|
|
*/
|
|
extern int has_sha1_file(const unsigned char *sha1);
|
|
|
|
/*
|
|
* Return true iff an alternate object database has a loose object
|
|
* with the specified name. This function does not respect replace
|
|
* references.
|
|
*/
|
|
extern int has_loose_object_nonlocal(const unsigned char *sha1);
|
|
|
|
extern int has_pack_index(const unsigned char *sha1);
|
|
|
|
extern void assert_sha1_type(const unsigned char *sha1, enum object_type expect);
|
|
|
|
extern const signed char hexval_table[256];
|
|
static inline unsigned int hexval(unsigned char c)
|
|
{
|
|
return hexval_table[c];
|
|
}
|
|
|
|
/* Convert to/from hex/sha1 representation */
|
|
#define MINIMUM_ABBREV minimum_abbrev
|
|
#define DEFAULT_ABBREV default_abbrev
|
|
|
|
struct object_context {
|
|
unsigned char tree[20];
|
|
char path[PATH_MAX];
|
|
unsigned mode;
|
|
};
|
|
|
|
#define GET_SHA1_QUIETLY 01
|
|
#define GET_SHA1_COMMIT 02
|
|
#define GET_SHA1_COMMITTISH 04
|
|
#define GET_SHA1_TREE 010
|
|
#define GET_SHA1_TREEISH 020
|
|
#define GET_SHA1_BLOB 040
|
|
#define GET_SHA1_ONLY_TO_DIE 04000
|
|
|
|
extern int get_sha1(const char *str, unsigned char *sha1);
|
|
extern int get_sha1_commit(const char *str, unsigned char *sha1);
|
|
extern int get_sha1_committish(const char *str, unsigned char *sha1);
|
|
extern int get_sha1_tree(const char *str, unsigned char *sha1);
|
|
extern int get_sha1_treeish(const char *str, unsigned char *sha1);
|
|
extern int get_sha1_blob(const char *str, unsigned char *sha1);
|
|
extern void maybe_die_on_misspelt_object_name(const char *name, const char *prefix);
|
|
extern int get_sha1_with_context(const char *str, unsigned flags, unsigned char *sha1, struct object_context *orc);
|
|
|
|
typedef int each_abbrev_fn(const unsigned char *sha1, void *);
|
|
extern int for_each_abbrev(const char *prefix, each_abbrev_fn, void *);
|
|
|
|
/*
|
|
* Try to read a SHA1 in hexadecimal format from the 40 characters
|
|
* starting at hex. Write the 20-byte result to sha1 in binary form.
|
|
* Return 0 on success. Reading stops if a NUL is encountered in the
|
|
* input, so it is safe to pass this function an arbitrary
|
|
* null-terminated string.
|
|
*/
|
|
extern int get_sha1_hex(const char *hex, unsigned char *sha1);
|
|
|
|
extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
|
|
extern int read_ref_full(const char *refname, unsigned char *sha1,
|
|
int reading, int *flags);
|
|
extern int read_ref(const char *refname, unsigned char *sha1);
|
|
|
|
/*
|
|
* Resolve a reference, recursively following symbolic refererences.
|
|
*
|
|
* Store the referred-to object's name in sha1 and return the name of
|
|
* the non-symbolic reference that ultimately pointed at it. The
|
|
* return value, if not NULL, is a pointer into either a static buffer
|
|
* or the input ref.
|
|
*
|
|
* If the reference cannot be resolved to an object, the behavior
|
|
* depends on the "reading" argument:
|
|
*
|
|
* - If reading is set, return NULL.
|
|
*
|
|
* - If reading is not set, clear sha1 and return the name of the last
|
|
* reference name in the chain, which will either be a non-symbolic
|
|
* reference or an undefined reference. If this is a prelude to
|
|
* "writing" to the ref, the return value is the name of the ref
|
|
* that will actually be created or changed.
|
|
*
|
|
* If flag is non-NULL, set the value that it points to the
|
|
* combination of REF_ISPACKED (if the reference was found among the
|
|
* packed references) and REF_ISSYMREF (if the initial reference was a
|
|
* symbolic reference).
|
|
*
|
|
* If ref is not a properly-formatted, normalized reference, return
|
|
* NULL. If more than MAXDEPTH recursive symbolic lookups are needed,
|
|
* give up and return NULL.
|
|
*
|
|
* errno is set to something meaningful on error.
|
|
*/
|
|
extern const char *resolve_ref_unsafe(const char *ref, unsigned char *sha1, int reading, int *flag);
|
|
extern char *resolve_refdup(const char *ref, unsigned char *sha1, int reading, int *flag);
|
|
|
|
extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref);
|
|
extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref);
|
|
extern int interpret_branch_name(const char *str, int len, struct strbuf *);
|
|
extern int get_sha1_mb(const char *str, unsigned char *sha1);
|
|
|
|
/*
|
|
* Return true iff abbrev_name is a possible abbreviation for
|
|
* full_name according to the rules defined by ref_rev_parse_rules in
|
|
* refs.c.
|
|
*/
|
|
extern int refname_match(const char *abbrev_name, const char *full_name);
|
|
|
|
extern int create_symref(const char *ref, const char *refs_heads_master, const char *logmsg);
|
|
extern int validate_headref(const char *ref);
|
|
|
|
extern int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
|
|
extern int df_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2);
|
|
extern int name_compare(const char *name1, size_t len1, const char *name2, size_t len2);
|
|
extern int cache_name_stage_compare(const char *name1, int len1, int stage1, const char *name2, int len2, int stage2);
|
|
|
|
extern void *read_object_with_reference(const unsigned char *sha1,
|
|
const char *required_type,
|
|
unsigned long *size,
|
|
unsigned char *sha1_ret);
|
|
|
|
extern struct object *peel_to_type(const char *name, int namelen,
|
|
struct object *o, enum object_type);
|
|
|
|
enum date_mode {
|
|
DATE_NORMAL = 0,
|
|
DATE_RELATIVE,
|
|
DATE_SHORT,
|
|
DATE_LOCAL,
|
|
DATE_ISO8601,
|
|
DATE_RFC2822,
|
|
DATE_RAW
|
|
};
|
|
|
|
const char *show_date(unsigned long time, int timezone, enum date_mode mode);
|
|
void show_date_relative(unsigned long time, int tz, const struct timeval *now,
|
|
struct strbuf *timebuf);
|
|
int parse_date(const char *date, char *buf, int bufsize);
|
|
int parse_date_basic(const char *date, unsigned long *timestamp, int *offset);
|
|
int parse_expiry_date(const char *date, unsigned long *timestamp);
|
|
void datestamp(char *buf, int bufsize);
|
|
#define approxidate(s) approxidate_careful((s), NULL)
|
|
unsigned long approxidate_careful(const char *, int *);
|
|
unsigned long approxidate_relative(const char *date, const struct timeval *now);
|
|
enum date_mode parse_date_format(const char *format);
|
|
int date_overflows(unsigned long date);
|
|
|
|
#define IDENT_STRICT 1
|
|
#define IDENT_NO_DATE 2
|
|
#define IDENT_NO_NAME 4
|
|
extern const char *git_author_info(int);
|
|
extern const char *git_committer_info(int);
|
|
extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int);
|
|
extern const char *fmt_name(const char *name, const char *email);
|
|
extern const char *ident_default_name(void);
|
|
extern const char *ident_default_email(void);
|
|
extern const char *git_editor(void);
|
|
extern const char *git_pager(int stdout_is_tty);
|
|
extern int git_ident_config(const char *, const char *, void *);
|
|
|
|
struct ident_split {
|
|
const char *name_begin;
|
|
const char *name_end;
|
|
const char *mail_begin;
|
|
const char *mail_end;
|
|
const char *date_begin;
|
|
const char *date_end;
|
|
const char *tz_begin;
|
|
const char *tz_end;
|
|
};
|
|
/*
|
|
* Signals an success with 0, but time part of the result may be NULL
|
|
* if the input lacks timestamp and zone
|
|
*/
|
|
extern int split_ident_line(struct ident_split *, const char *, int);
|
|
|
|
/*
|
|
* Like show_date, but pull the timestamp and tz parameters from
|
|
* the ident_split. It will also sanity-check the values and produce
|
|
* a well-known sentinel date if they appear bogus.
|
|
*/
|
|
const char *show_ident_date(const struct ident_split *id, enum date_mode mode);
|
|
|
|
/*
|
|
* Compare split idents for equality or strict ordering. Note that we
|
|
* compare only the ident part of the line, ignoring any timestamp.
|
|
*
|
|
* Because there are two fields, we must choose one as the primary key; we
|
|
* currently arbitrarily pick the email.
|
|
*/
|
|
extern int ident_cmp(const struct ident_split *, const struct ident_split *);
|
|
|
|
struct checkout {
|
|
struct index_state *istate;
|
|
const char *base_dir;
|
|
int base_dir_len;
|
|
unsigned force:1,
|
|
quiet:1,
|
|
not_new:1,
|
|
refresh_cache:1;
|
|
};
|
|
|
|
#define TEMPORARY_FILENAME_LENGTH 25
|
|
extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath);
|
|
|
|
struct cache_def {
|
|
struct strbuf path;
|
|
int flags;
|
|
int track_flags;
|
|
int prefix_len_stat_func;
|
|
};
|
|
#define CACHE_DEF_INIT { STRBUF_INIT, 0, 0, 0 }
|
|
static inline void cache_def_clear(struct cache_def *cache)
|
|
{
|
|
strbuf_release(&cache->path);
|
|
}
|
|
|
|
extern int has_symlink_leading_path(const char *name, int len);
|
|
extern int threaded_has_symlink_leading_path(struct cache_def *, const char *, int);
|
|
extern int check_leading_path(const char *name, int len);
|
|
extern int has_dirs_only_path(const char *name, int len, int prefix_len);
|
|
extern void schedule_dir_for_removal(const char *name, int len);
|
|
extern void remove_scheduled_dirs(void);
|
|
|
|
extern struct alternate_object_database {
|
|
struct alternate_object_database *next;
|
|
char *name;
|
|
char base[FLEX_ARRAY]; /* more */
|
|
} *alt_odb_list;
|
|
extern void prepare_alt_odb(void);
|
|
extern void read_info_alternates(const char * relative_base, int depth);
|
|
extern void add_to_alternates_file(const char *reference);
|
|
typedef int alt_odb_fn(struct alternate_object_database *, void *);
|
|
extern void foreach_alt_odb(alt_odb_fn, void*);
|
|
|
|
struct pack_window {
|
|
struct pack_window *next;
|
|
unsigned char *base;
|
|
off_t offset;
|
|
size_t len;
|
|
unsigned int last_used;
|
|
unsigned int inuse_cnt;
|
|
};
|
|
|
|
extern struct packed_git {
|
|
struct packed_git *next;
|
|
struct pack_window *windows;
|
|
off_t pack_size;
|
|
const void *index_data;
|
|
size_t index_size;
|
|
uint32_t num_objects;
|
|
uint32_t num_bad_objects;
|
|
unsigned char *bad_object_sha1;
|
|
int index_version;
|
|
time_t mtime;
|
|
int pack_fd;
|
|
unsigned pack_local:1,
|
|
pack_keep:1,
|
|
do_not_close:1;
|
|
unsigned char sha1[20];
|
|
/* something like ".git/objects/pack/xxxxx.pack" */
|
|
char pack_name[FLEX_ARRAY]; /* more */
|
|
} *packed_git;
|
|
|
|
struct pack_entry {
|
|
off_t offset;
|
|
unsigned char sha1[20];
|
|
struct packed_git *p;
|
|
};
|
|
|
|
extern struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_path);
|
|
|
|
/* A hook for count-objects to report invalid files in pack directory */
|
|
extern void (*report_garbage)(const char *desc, const char *path);
|
|
|
|
extern void prepare_packed_git(void);
|
|
extern void reprepare_packed_git(void);
|
|
extern void install_packed_git(struct packed_git *pack);
|
|
|
|
extern struct packed_git *find_sha1_pack(const unsigned char *sha1,
|
|
struct packed_git *packs);
|
|
|
|
extern void pack_report(void);
|
|
|
|
/*
|
|
* mmap the index file for the specified packfile (if it is not
|
|
* already mmapped). Return 0 on success.
|
|
*/
|
|
extern int open_pack_index(struct packed_git *);
|
|
|
|
/*
|
|
* munmap the index file for the specified packfile (if it is
|
|
* currently mmapped).
|
|
*/
|
|
extern void close_pack_index(struct packed_git *);
|
|
|
|
extern unsigned char *use_pack(struct packed_git *, struct pack_window **, off_t, unsigned long *);
|
|
extern void close_pack_windows(struct packed_git *);
|
|
extern void unuse_pack(struct pack_window **);
|
|
extern void free_pack_by_name(const char *);
|
|
extern void clear_delta_base_cache(void);
|
|
extern struct packed_git *add_packed_git(const char *, int, int);
|
|
|
|
/*
|
|
* Return the SHA-1 of the nth object within the specified packfile.
|
|
* Open the index if it is not already open. The return value points
|
|
* at the SHA-1 within the mmapped index. Return NULL if there is an
|
|
* error.
|
|
*/
|
|
extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t n);
|
|
|
|
/*
|
|
* Return the offset of the nth object within the specified packfile.
|
|
* The index must already be opened.
|
|
*/
|
|
extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t n);
|
|
|
|
/*
|
|
* If the object named sha1 is present in the specified packfile,
|
|
* return its offset within the packfile; otherwise, return 0.
|
|
*/
|
|
extern off_t find_pack_entry_one(const unsigned char *sha1, struct packed_git *);
|
|
|
|
extern int is_pack_valid(struct packed_git *);
|
|
extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *);
|
|
extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep);
|
|
extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t);
|
|
extern int unpack_object_header(struct packed_git *, struct pack_window **, off_t *, unsigned long *);
|
|
|
|
struct object_info {
|
|
/* Request */
|
|
enum object_type *typep;
|
|
unsigned long *sizep;
|
|
unsigned long *disk_sizep;
|
|
unsigned char *delta_base_sha1;
|
|
|
|
/* Response */
|
|
enum {
|
|
OI_CACHED,
|
|
OI_LOOSE,
|
|
OI_PACKED,
|
|
OI_DBCACHED
|
|
} whence;
|
|
union {
|
|
/*
|
|
* struct {
|
|
* ... Nothing to expose in this case
|
|
* } cached;
|
|
* struct {
|
|
* ... Nothing to expose in this case
|
|
* } loose;
|
|
*/
|
|
struct {
|
|
struct packed_git *pack;
|
|
off_t offset;
|
|
unsigned int is_delta;
|
|
} packed;
|
|
} u;
|
|
};
|
|
extern int sha1_object_info_extended(const unsigned char *, struct object_info *, unsigned flags);
|
|
|
|
/* Dumb servers support */
|
|
extern int update_server_info(int);
|
|
|
|
/* git_config_parse_key() returns these negated: */
|
|
#define CONFIG_INVALID_KEY 1
|
|
#define CONFIG_NO_SECTION_OR_NAME 2
|
|
/* git_config_set(), git_config_set_multivar() return the above or these: */
|
|
#define CONFIG_NO_LOCK -1
|
|
#define CONFIG_INVALID_FILE 3
|
|
#define CONFIG_NO_WRITE 4
|
|
#define CONFIG_NOTHING_SET 5
|
|
#define CONFIG_INVALID_PATTERN 6
|
|
#define CONFIG_GENERIC_ERROR 7
|
|
|
|
struct git_config_source {
|
|
unsigned int use_stdin:1;
|
|
const char *file;
|
|
const char *blob;
|
|
};
|
|
|
|
typedef int (*config_fn_t)(const char *, const char *, void *);
|
|
extern int git_default_config(const char *, const char *, void *);
|
|
extern int git_config_from_file(config_fn_t fn, const char *, void *);
|
|
extern int git_config_from_buf(config_fn_t fn, const char *name,
|
|
const char *buf, size_t len, void *data);
|
|
extern void git_config_push_parameter(const char *text);
|
|
extern int git_config_from_parameters(config_fn_t fn, void *data);
|
|
extern void git_config(config_fn_t fn, void *);
|
|
extern int git_config_with_options(config_fn_t fn, void *,
|
|
struct git_config_source *config_source,
|
|
int respect_includes);
|
|
extern int git_config_early(config_fn_t fn, void *, const char *repo_config);
|
|
extern int git_parse_ulong(const char *, unsigned long *);
|
|
extern int git_config_int(const char *, const char *);
|
|
extern int64_t git_config_int64(const char *, const char *);
|
|
extern unsigned long git_config_ulong(const char *, const char *);
|
|
extern int git_config_bool_or_int(const char *, const char *, int *);
|
|
extern int git_config_bool(const char *, const char *);
|
|
extern int git_config_maybe_bool(const char *, const char *);
|
|
extern int git_config_string(const char **, const char *, const char *);
|
|
extern int git_config_pathname(const char **, const char *, const char *);
|
|
extern int git_config_set_in_file(const char *, const char *, const char *);
|
|
extern int git_config_set(const char *, const char *);
|
|
extern int git_config_parse_key(const char *, char **, int *);
|
|
extern int git_config_set_multivar(const char *, const char *, const char *, int);
|
|
extern int git_config_set_multivar_in_file(const char *, const char *, const char *, const char *, int);
|
|
extern int git_config_rename_section(const char *, const char *);
|
|
extern int git_config_rename_section_in_file(const char *, const char *, const char *);
|
|
extern const char *git_etc_gitconfig(void);
|
|
extern int check_repository_format_version(const char *var, const char *value, void *cb);
|
|
extern int git_env_bool(const char *, int);
|
|
extern int git_config_system(void);
|
|
extern int config_error_nonbool(const char *);
|
|
#if defined(__GNUC__)
|
|
#define config_error_nonbool(s) (config_error_nonbool(s), const_error())
|
|
#endif
|
|
extern const char *get_log_output_encoding(void);
|
|
extern const char *get_commit_output_encoding(void);
|
|
|
|
extern int git_config_parse_parameter(const char *, config_fn_t fn, void *data);
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struct config_include_data {
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int depth;
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config_fn_t fn;
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void *data;
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};
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#define CONFIG_INCLUDE_INIT { 0 }
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extern int git_config_include(const char *name, const char *value, void *data);
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/*
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* Match and parse a config key of the form:
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*
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* section.(subsection.)?key
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*
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* (i.e., what gets handed to a config_fn_t). The caller provides the section;
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* we return -1 if it does not match, 0 otherwise. The subsection and key
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* out-parameters are filled by the function (and subsection is NULL if it is
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* missing).
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*/
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extern int parse_config_key(const char *var,
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const char *section,
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const char **subsection, int *subsection_len,
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const char **key);
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struct config_set_element {
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struct hashmap_entry ent;
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char *key;
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struct string_list value_list;
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};
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struct configset_list_item {
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struct config_set_element *e;
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int value_index;
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};
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/*
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* the contents of the list are ordered according to their
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* position in the config files and order of parsing the files.
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* (i.e. key-value pair at the last position of .git/config will
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* be at the last item of the list)
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*/
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struct configset_list {
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struct configset_list_item *items;
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unsigned int nr, alloc;
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};
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struct config_set {
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struct hashmap config_hash;
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int hash_initialized;
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struct configset_list list;
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};
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extern void git_configset_init(struct config_set *cs);
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extern int git_configset_add_file(struct config_set *cs, const char *filename);
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extern int git_configset_get_value(struct config_set *cs, const char *key, const char **value);
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extern const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key);
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extern void git_configset_clear(struct config_set *cs);
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extern int git_configset_get_string_const(struct config_set *cs, const char *key, const char **dest);
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extern int git_configset_get_string(struct config_set *cs, const char *key, char **dest);
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extern int git_configset_get_int(struct config_set *cs, const char *key, int *dest);
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extern int git_configset_get_ulong(struct config_set *cs, const char *key, unsigned long *dest);
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extern int git_configset_get_bool(struct config_set *cs, const char *key, int *dest);
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extern int git_configset_get_bool_or_int(struct config_set *cs, const char *key, int *is_bool, int *dest);
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extern int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *dest);
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extern int git_configset_get_pathname(struct config_set *cs, const char *key, const char **dest);
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|
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extern int git_config_get_value(const char *key, const char **value);
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extern const struct string_list *git_config_get_value_multi(const char *key);
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extern void git_config_clear(void);
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extern void git_config_iter(config_fn_t fn, void *data);
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extern int git_config_get_string_const(const char *key, const char **dest);
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extern int git_config_get_string(const char *key, char **dest);
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extern int git_config_get_int(const char *key, int *dest);
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extern int git_config_get_ulong(const char *key, unsigned long *dest);
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extern int git_config_get_bool(const char *key, int *dest);
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extern int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest);
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|
extern int git_config_get_maybe_bool(const char *key, int *dest);
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extern int git_config_get_pathname(const char *key, const char **dest);
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|
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struct key_value_info {
|
|
const char *filename;
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|
int linenr;
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|
};
|
|
|
|
extern NORETURN void git_die_config(const char *key, const char *err, ...) __attribute__((format(printf, 2, 3)));
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extern NORETURN void git_die_config_linenr(const char *key, const char *filename, int linenr);
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|
|
|
extern int committer_ident_sufficiently_given(void);
|
|
extern int author_ident_sufficiently_given(void);
|
|
|
|
extern const char *git_commit_encoding;
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|
extern const char *git_log_output_encoding;
|
|
extern const char *git_mailmap_file;
|
|
extern const char *git_mailmap_blob;
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|
|
|
/* IO helper functions */
|
|
extern void maybe_flush_or_die(FILE *, const char *);
|
|
extern int copy_fd(int ifd, int ofd);
|
|
extern int copy_file(const char *dst, const char *src, int mode);
|
|
extern int copy_file_with_time(const char *dst, const char *src, int mode);
|
|
extern void write_or_die(int fd, const void *buf, size_t count);
|
|
extern int write_or_whine(int fd, const void *buf, size_t count, const char *msg);
|
|
extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg);
|
|
extern void fsync_or_die(int fd, const char *);
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|
|
|
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 ssize_t pread_in_full(int fd, void *buf, size_t count, off_t offset);
|
|
|
|
static inline ssize_t write_str_in_full(int fd, const char *str)
|
|
{
|
|
return write_in_full(fd, str, strlen(str));
|
|
}
|
|
|
|
/* pager.c */
|
|
extern void setup_pager(void);
|
|
extern const char *pager_program;
|
|
extern int pager_in_use(void);
|
|
extern int pager_use_color;
|
|
extern int term_columns(void);
|
|
extern int decimal_width(int);
|
|
extern int check_pager_config(const char *cmd);
|
|
|
|
extern const char *editor_program;
|
|
extern const char *askpass_program;
|
|
extern const char *excludes_file;
|
|
|
|
/* base85 */
|
|
int decode_85(char *dst, const char *line, int linelen);
|
|
void encode_85(char *buf, const unsigned char *data, int bytes);
|
|
|
|
/* alloc.c */
|
|
extern void *alloc_blob_node(void);
|
|
extern void *alloc_tree_node(void);
|
|
extern void *alloc_commit_node(void);
|
|
extern void *alloc_tag_node(void);
|
|
extern void *alloc_object_node(void);
|
|
extern void alloc_report(void);
|
|
extern unsigned int alloc_commit_index(void);
|
|
|
|
/* pkt-line.c */
|
|
void packet_trace_identity(const char *prog);
|
|
|
|
/* add */
|
|
/*
|
|
* return 0 if success, 1 - if addition of a file failed and
|
|
* ADD_FILES_IGNORE_ERRORS was specified in flags
|
|
*/
|
|
int add_files_to_cache(const char *prefix, const struct pathspec *pathspec, int flags);
|
|
|
|
/* diff.c */
|
|
extern int diff_auto_refresh_index;
|
|
|
|
/* match-trees.c */
|
|
void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);
|
|
void shift_tree_by(const unsigned char *, const unsigned char *, unsigned char *, const char *);
|
|
|
|
/*
|
|
* whitespace rules.
|
|
* used by both diff and apply
|
|
* last two digits are tab width
|
|
*/
|
|
#define WS_BLANK_AT_EOL 0100
|
|
#define WS_SPACE_BEFORE_TAB 0200
|
|
#define WS_INDENT_WITH_NON_TAB 0400
|
|
#define WS_CR_AT_EOL 01000
|
|
#define WS_BLANK_AT_EOF 02000
|
|
#define WS_TAB_IN_INDENT 04000
|
|
#define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF)
|
|
#define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB|8)
|
|
#define WS_TAB_WIDTH_MASK 077
|
|
extern unsigned whitespace_rule_cfg;
|
|
extern unsigned whitespace_rule(const char *);
|
|
extern unsigned parse_whitespace_rule(const char *);
|
|
extern unsigned ws_check(const char *line, int len, unsigned ws_rule);
|
|
extern void ws_check_emit(const char *line, int len, unsigned ws_rule, FILE *stream, const char *set, const char *reset, const char *ws);
|
|
extern char *whitespace_error_string(unsigned ws);
|
|
extern void ws_fix_copy(struct strbuf *, const char *, int, unsigned, int *);
|
|
extern int ws_blank_line(const char *line, int len, unsigned ws_rule);
|
|
#define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK)
|
|
|
|
/* ls-files */
|
|
int report_path_error(const char *ps_matched, const struct pathspec *pathspec, const char *prefix);
|
|
void overlay_tree_on_cache(const char *tree_name, const char *prefix);
|
|
|
|
char *alias_lookup(const char *alias);
|
|
int split_cmdline(char *cmdline, const char ***argv);
|
|
/* Takes a negative value returned by split_cmdline */
|
|
const char *split_cmdline_strerror(int cmdline_errno);
|
|
|
|
/* git.c */
|
|
struct startup_info {
|
|
int have_repository;
|
|
const char *prefix;
|
|
};
|
|
extern struct startup_info *startup_info;
|
|
|
|
/* merge.c */
|
|
struct commit_list;
|
|
int try_merge_command(const char *strategy, size_t xopts_nr,
|
|
const char **xopts, struct commit_list *common,
|
|
const char *head_arg, struct commit_list *remotes);
|
|
int checkout_fast_forward(const unsigned char *from,
|
|
const unsigned char *to,
|
|
int overwrite_ignore);
|
|
|
|
|
|
int sane_execvp(const char *file, char *const argv[]);
|
|
|
|
/*
|
|
* A struct to encapsulate the concept of whether a file has changed
|
|
* since we last checked it. This uses criteria similar to those used
|
|
* for the index.
|
|
*/
|
|
struct stat_validity {
|
|
struct stat_data *sd;
|
|
};
|
|
|
|
void stat_validity_clear(struct stat_validity *sv);
|
|
|
|
/*
|
|
* Returns 1 if the path is a regular file (or a symlink to a regular
|
|
* file) and matches the saved stat_validity, 0 otherwise. A missing
|
|
* or inaccessible file is considered a match if the struct was just
|
|
* initialized, or if the previous update found an inaccessible file.
|
|
*/
|
|
int stat_validity_check(struct stat_validity *sv, const char *path);
|
|
|
|
/*
|
|
* Update the stat_validity from a file opened at descriptor fd. If
|
|
* the file is missing, inaccessible, or not a regular file, then
|
|
* future calls to stat_validity_check will match iff one of those
|
|
* conditions continues to be true.
|
|
*/
|
|
void stat_validity_update(struct stat_validity *sv, int fd);
|
|
|
|
int versioncmp(const char *s1, const char *s2);
|
|
|
|
#endif /* CACHE_H */
|