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1896 lines
66 KiB
1896 lines
66 KiB
#ifndef CACHE_H |
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#define CACHE_H |
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|
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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 "list.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 "trace2.h" |
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#include "string-list.h" |
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#include "pack-revindex.h" |
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#include "hash.h" |
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#include "path.h" |
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#include "oid-array.h" |
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#include "repository.h" |
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#include "mem-pool.h" |
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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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|
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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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|
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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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/* |
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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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#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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/* |
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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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|
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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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/* |
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* Basic data structures for the directory cache |
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*/ |
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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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|
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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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/* |
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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 mem_pool_allocated; |
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unsigned int ce_namelen; |
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unsigned int index; /* for link extension */ |
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struct object_id oid; |
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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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/* |
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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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|
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#define CE_HASHED (1 << 20) |
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#define CE_FSMONITOR_VALID (1 << 21) |
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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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|
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#define CE_UNPACKED (1 << 24) |
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#define CE_NEW_SKIP_WORKTREE (1 << 25) |
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|
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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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|
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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 (1U << 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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/* Forward structure decls */ |
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struct pathspec; |
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struct child_process; |
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struct tree; |
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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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int mem_pool_allocated = dst->mem_pool_allocated; |
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|
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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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/* Restore the mem_pool_allocated flag */ |
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dst->mem_pool_allocated = mem_pool_allocated; |
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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_intent_to_add(ce) ((ce)->ce_flags & CE_INTENT_TO_ADD) |
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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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#define UNTRACKED_CHANGED (1 << 7) |
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#define FSMONITOR_CHANGED (1 << 8) |
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struct split_index; |
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struct untracked_cache; |
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struct progress; |
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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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drop_cache_tree : 1, |
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updated_workdir : 1, |
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updated_skipworktree : 1, |
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fsmonitor_has_run_once : 1; |
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struct hashmap name_hash; |
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struct hashmap dir_hash; |
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struct object_id oid; |
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struct untracked_cache *untracked; |
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char *fsmonitor_last_update; |
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struct ewah_bitmap *fsmonitor_dirty; |
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struct mem_pool *ce_mem_pool; |
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struct progress *progress; |
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struct repository *repo; |
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}; |
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/* Name hashing */ |
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int test_lazy_init_name_hash(struct index_state *istate, int try_threaded); |
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void add_name_hash(struct index_state *istate, struct cache_entry *ce); |
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void remove_name_hash(struct index_state *istate, struct cache_entry *ce); |
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void free_name_hash(struct index_state *istate); |
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/* Cache entry creation and cleanup */ |
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/* |
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* Create cache_entry intended for use in the specified index. Caller |
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* is responsible for discarding the cache_entry with |
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* `discard_cache_entry`. |
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*/ |
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struct cache_entry *make_cache_entry(struct index_state *istate, |
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unsigned int mode, |
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const struct object_id *oid, |
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const char *path, |
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int stage, |
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unsigned int refresh_options); |
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struct cache_entry *make_empty_cache_entry(struct index_state *istate, |
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size_t name_len); |
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/* |
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* Create a cache_entry that is not intended to be added to an index. |
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* Caller is responsible for discarding the cache_entry |
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* with `discard_cache_entry`. |
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*/ |
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struct cache_entry *make_transient_cache_entry(unsigned int mode, |
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const struct object_id *oid, |
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const char *path, |
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int stage); |
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struct cache_entry *make_empty_transient_cache_entry(size_t name_len); |
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/* |
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* Discard cache entry. |
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*/ |
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void discard_cache_entry(struct cache_entry *ce); |
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/* |
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* Check configuration if we should perform extra validation on cache |
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* entries. |
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*/ |
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int should_validate_cache_entries(void); |
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/* |
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* Duplicate a cache_entry. Allocate memory for the new entry from a |
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* memory_pool. Takes into account cache_entry fields that are meant |
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* for managing the underlying memory allocation of the cache_entry. |
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*/ |
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struct cache_entry *dup_cache_entry(const struct cache_entry *ce, struct index_state *istate); |
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|
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/* |
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* Validate the cache entries in the index. This is an internal |
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* consistency check that the cache_entry structs are allocated from |
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* the expected memory pool. |
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*/ |
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void validate_cache_entries(const struct index_state *istate); |
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|
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#ifdef USE_THE_INDEX_COMPATIBILITY_MACROS |
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extern struct index_state the_index; |
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|
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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() repo_read_index(the_repository) |
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#define read_cache_from(path) read_index_from(&the_index, (path), (get_git_dir())) |
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#define read_cache_preload(pathspec) repo_read_index_preload(the_repository, (pathspec), 0) |
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#define is_cache_unborn() is_index_unborn(&the_index) |
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#define read_cache_unmerged() repo_read_index_unmerged(the_repository) |
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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 chmod_cache_entry(ce, flip) chmod_index_entry(&the_index, (ce), (flip)) |
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#define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL, NULL) |
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#define refresh_and_write_cache(refresh_flags, write_flags, gentle) repo_refresh_and_write_index(the_repository, (refresh_flags), (write_flags), (gentle), 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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#define hold_locked_index(lock_file, flags) repo_hold_locked_index(the_repository, (lock_file), (flags)) |
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#endif |
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|
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#define TYPE_BITS 3 |
|
|
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/* |
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* Values in this enum (except those outside the 3 bit range) are part |
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* of pack file format. See Documentation/technical/pack-format.txt |
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* for more information. |
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*/ |
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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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|
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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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|
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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_COMMON_DIR_ENVIRONMENT "GIT_COMMON_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 GIT_SUPER_PREFIX_ENVIRONMENT "GIT_INTERNAL_SUPER_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 CONFIG_COUNT_ENVIRONMENT "GIT_CONFIG_COUNT" |
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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 GIT_REPLACE_REF_BASE_ENVIRONMENT "GIT_REPLACE_REF_BASE" |
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#define GITATTRIBUTES_FILE ".gitattributes" |
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#define INFOATTRIBUTES_FILE "info/attributes" |
|
#define ATTRIBUTE_MACRO_PREFIX "[attr]" |
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#define GITMODULES_FILE ".gitmodules" |
|
#define GITMODULES_INDEX ":.gitmodules" |
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#define GITMODULES_HEAD "HEAD:.gitmodules" |
|
#define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF" |
|
#define GIT_NOTES_DEFAULT_REF "refs/notes/commits" |
|
#define GIT_NOTES_DISPLAY_REF_ENVIRONMENT "GIT_NOTES_DISPLAY_REF" |
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#define GIT_NOTES_REWRITE_REF_ENVIRONMENT "GIT_NOTES_REWRITE_REF" |
|
#define GIT_NOTES_REWRITE_MODE_ENVIRONMENT "GIT_NOTES_REWRITE_MODE" |
|
#define GIT_LITERAL_PATHSPECS_ENVIRONMENT "GIT_LITERAL_PATHSPECS" |
|
#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" |
|
#define GIT_QUARANTINE_ENVIRONMENT "GIT_QUARANTINE_PATH" |
|
#define GIT_OPTIONAL_LOCKS_ENVIRONMENT "GIT_OPTIONAL_LOCKS" |
|
#define GIT_TEXT_DOMAIN_DIR_ENVIRONMENT "GIT_TEXTDOMAINDIR" |
|
|
|
/* |
|
* Environment variable used in handshaking the wire protocol. |
|
* Contains a colon ':' separated list of keys with optional values |
|
* 'key[=value]'. Presence of unknown keys and values must be |
|
* ignored. |
|
*/ |
|
#define GIT_PROTOCOL_ENVIRONMENT "GIT_PROTOCOL" |
|
/* HTTP header used to handshake the wire protocol */ |
|
#define GIT_PROTOCOL_HEADER "Git-Protocol" |
|
|
|
/* |
|
* This environment variable is expected to contain a boolean indicating |
|
* whether we should or should not treat: |
|
* |
|
* GIT_DIR=foo.git git ... |
|
* |
|
* as if GIT_WORK_TREE=. was given. It's not expected that users will make use |
|
* of this, but we use it internally to communicate to sub-processes that we |
|
* are in a bare repo. If not set, defaults to true. |
|
*/ |
|
#define GIT_IMPLICIT_WORK_TREE_ENVIRONMENT "GIT_IMPLICIT_WORK_TREE" |
|
|
|
/* |
|
* Repository-local GIT_* environment variables; these will be cleared |
|
* when git spawns a sub-process that runs inside another repository. |
|
* The array is NULL-terminated, which makes it easy to pass in the "env" |
|
* parameter of a run-command invocation, or to do a simple walk. |
|
*/ |
|
extern const char * const local_repo_env[]; |
|
|
|
void setup_git_env(const char *git_dir); |
|
|
|
/* |
|
* Returns true iff we have a configured git repository (either via |
|
* setup_git_directory, or in the environment via $GIT_DIR). |
|
*/ |
|
int have_git_dir(void); |
|
|
|
extern int is_bare_repository_cfg; |
|
int is_bare_repository(void); |
|
int is_inside_git_dir(void); |
|
extern char *git_work_tree_cfg; |
|
int is_inside_work_tree(void); |
|
const char *get_git_dir(void); |
|
const char *get_git_common_dir(void); |
|
char *get_object_directory(void); |
|
char *get_index_file(void); |
|
char *get_graft_file(struct repository *r); |
|
void set_git_dir(const char *path, int make_realpath); |
|
int get_common_dir_noenv(struct strbuf *sb, const char *gitdir); |
|
int get_common_dir(struct strbuf *sb, const char *gitdir); |
|
const char *get_git_namespace(void); |
|
const char *strip_namespace(const char *namespaced_ref); |
|
const char *get_super_prefix(void); |
|
const char *get_git_work_tree(void); |
|
|
|
/* |
|
* Return true if the given path is a git directory; note that this _just_ |
|
* looks at the directory itself. If you want to know whether "foo/.git" |
|
* is a repository, you must feed that path, not just "foo". |
|
*/ |
|
int is_git_directory(const char *path); |
|
|
|
/* |
|
* Return 1 if the given path is the root of a git repository or |
|
* submodule, else 0. Will not return 1 for bare repositories with the |
|
* exception of creating a bare repository in "foo/.git" and calling |
|
* is_git_repository("foo"). |
|
* |
|
* If we run into read errors, we err on the side of saying "yes, it is", |
|
* as we usually consider sub-repos precious, and would prefer to err on the |
|
* side of not disrupting or deleting them. |
|
*/ |
|
int is_nonbare_repository_dir(struct strbuf *path); |
|
|
|
#define READ_GITFILE_ERR_STAT_FAILED 1 |
|
#define READ_GITFILE_ERR_NOT_A_FILE 2 |
|
#define READ_GITFILE_ERR_OPEN_FAILED 3 |
|
#define READ_GITFILE_ERR_READ_FAILED 4 |
|
#define READ_GITFILE_ERR_INVALID_FORMAT 5 |
|
#define READ_GITFILE_ERR_NO_PATH 6 |
|
#define READ_GITFILE_ERR_NOT_A_REPO 7 |
|
#define READ_GITFILE_ERR_TOO_LARGE 8 |
|
void read_gitfile_error_die(int error_code, const char *path, const char *dir); |
|
const char *read_gitfile_gently(const char *path, int *return_error_code); |
|
#define read_gitfile(path) read_gitfile_gently((path), NULL) |
|
const char *resolve_gitdir_gently(const char *suspect, int *return_error_code); |
|
#define resolve_gitdir(path) resolve_gitdir_gently((path), NULL) |
|
|
|
void set_git_work_tree(const char *tree); |
|
|
|
#define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES" |
|
|
|
void setup_work_tree(void); |
|
/* |
|
* Find the commondir and gitdir of the repository that contains the current |
|
* working directory, without changing the working directory or other global |
|
* state. The result is appended to commondir and gitdir. If the discovered |
|
* gitdir does not correspond to a worktree, then 'commondir' and 'gitdir' will |
|
* both have the same result appended to the buffer. The return value is |
|
* either 0 upon success and non-zero if no repository was found. |
|
*/ |
|
int discover_git_directory(struct strbuf *commondir, |
|
struct strbuf *gitdir); |
|
const char *setup_git_directory_gently(int *); |
|
const char *setup_git_directory(void); |
|
char *prefix_path(const char *prefix, int len, const char *path); |
|
char *prefix_path_gently(const char *prefix, int len, int *remaining, const char *path); |
|
|
|
/* |
|
* Concatenate "prefix" (if len is non-zero) and "path", with no |
|
* connecting characters (so "prefix" should end with a "/"). |
|
* Unlike prefix_path, this should be used if the named file does |
|
* not have to interact with index entry; i.e. name of a random file |
|
* on the filesystem. |
|
* |
|
* The return value is always a newly allocated string (even if the |
|
* prefix was empty). |
|
*/ |
|
char *prefix_filename(const char *prefix, const char *path); |
|
|
|
int check_filename(const char *prefix, const char *name); |
|
void verify_filename(const char *prefix, |
|
const char *name, |
|
int diagnose_misspelt_rev); |
|
void verify_non_filename(const char *prefix, const char *name); |
|
int path_inside_repo(const char *prefix, const char *path); |
|
|
|
#define INIT_DB_QUIET 0x0001 |
|
#define INIT_DB_EXIST_OK 0x0002 |
|
|
|
int init_db(const char *git_dir, const char *real_git_dir, |
|
const char *template_dir, int hash_algo, |
|
const char *initial_branch, unsigned int flags); |
|
void initialize_repository_version(int hash_algo, int reinit); |
|
|
|
void sanitize_stdfds(void); |
|
int daemonize(void); |
|
|
|
#define alloc_nr(x) (((x)+16)*3/2) |
|
|
|
/** |
|
* Dynamically growing an array using realloc() is error prone and boring. |
|
* |
|
* Define your array with: |
|
* |
|
* - a pointer (`item`) that points at the array, initialized to `NULL` |
|
* (although please name the variable based on its contents, not on its |
|
* type); |
|
* |
|
* - an integer variable (`alloc`) that keeps track of how big the current |
|
* allocation is, initialized to `0`; |
|
* |
|
* - another integer variable (`nr`) to keep track of how many elements the |
|
* array currently has, initialized to `0`. |
|
* |
|
* Then before adding `n`th element to the item, call `ALLOC_GROW(item, n, |
|
* alloc)`. This ensures that the array can hold at least `n` elements by |
|
* calling `realloc(3)` and adjusting `alloc` variable. |
|
* |
|
* ------------ |
|
* sometype *item; |
|
* size_t nr; |
|
* size_t alloc |
|
* |
|
* for (i = 0; i < nr; i++) |
|
* if (we like item[i] already) |
|
* return; |
|
* |
|
* // we did not like any existing one, so add one |
|
* ALLOC_GROW(item, nr + 1, alloc); |
|
* item[nr++] = value you like; |
|
* ------------ |
|
* |
|
* You are responsible for updating the `nr` variable. |
|
* |
|
* If you need to specify the number of elements to allocate explicitly |
|
* then use the macro `REALLOC_ARRAY(item, alloc)` instead of `ALLOC_GROW`. |
|
* |
|
* Consider using ALLOC_GROW_BY instead of ALLOC_GROW as it has some |
|
* added niceties. |
|
* |
|
* 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); \ |
|
REALLOC_ARRAY(x, alloc); \ |
|
} \ |
|
} while (0) |
|
|
|
/* |
|
* Similar to ALLOC_GROW but handles updating of the nr value and |
|
* zeroing the bytes of the newly-grown array elements. |
|
* |
|
* DO NOT USE any expression with side-effect for any of the |
|
* arguments. |
|
*/ |
|
#define ALLOC_GROW_BY(x, nr, increase, alloc) \ |
|
do { \ |
|
if (increase) { \ |
|
size_t new_nr = nr + (increase); \ |
|
if (new_nr < nr) \ |
|
BUG("negative growth in ALLOC_GROW_BY"); \ |
|
ALLOC_GROW(x, new_nr, alloc); \ |
|
memset((x) + nr, 0, sizeof(*(x)) * (increase)); \ |
|
nr = new_nr; \ |
|
} \ |
|
} while (0) |
|
|
|
/* Initialize and use the cache information */ |
|
struct lock_file; |
|
void preload_index(struct index_state *index, |
|
const struct pathspec *pathspec, |
|
unsigned int refresh_flags); |
|
int do_read_index(struct index_state *istate, const char *path, |
|
int must_exist); /* for testting only! */ |
|
int read_index_from(struct index_state *, const char *path, |
|
const char *gitdir); |
|
int is_index_unborn(struct index_state *); |
|
|
|
/* For use with `write_locked_index()`. */ |
|
#define COMMIT_LOCK (1 << 0) |
|
#define SKIP_IF_UNCHANGED (1 << 1) |
|
|
|
/* |
|
* Write the index while holding an already-taken lock. Close the lock, |
|
* and if `COMMIT_LOCK` is given, commit it. |
|
* |
|
* Unless a split index is in use, write the index into the lockfile. |
|
* |
|
* With a split index, write the shared index to a temporary file, |
|
* adjust its permissions and rename it into place, then write the |
|
* split index to the lockfile. If the temporary file for the shared |
|
* index cannot be created, fall back to the behavior described in |
|
* the previous paragraph. |
|
* |
|
* With `COMMIT_LOCK`, the lock is always committed or rolled back. |
|
* Without it, the lock is closed, but neither committed nor rolled |
|
* back. |
|
* |
|
* If `SKIP_IF_UNCHANGED` is given and the index is unchanged, nothing |
|
* is written (and the lock is rolled back if `COMMIT_LOCK` is given). |
|
*/ |
|
int write_locked_index(struct index_state *, struct lock_file *lock, unsigned flags); |
|
|
|
int discard_index(struct index_state *); |
|
void move_index_extensions(struct index_state *dst, struct index_state *src); |
|
int unmerged_index(const struct index_state *); |
|
|
|
/** |
|
* Returns 1 if istate differs from tree, 0 otherwise. If tree is NULL, |
|
* compares istate to HEAD. If tree is NULL and on an unborn branch, |
|
* returns 1 if there are entries in istate, 0 otherwise. If an strbuf is |
|
* provided, the space-separated list of files that differ will be appended |
|
* to it. |
|
*/ |
|
int repo_index_has_changes(struct repository *repo, |
|
struct tree *tree, |
|
struct strbuf *sb); |
|
|
|
int verify_path(const char *path, unsigned mode); |
|
int strcmp_offset(const char *s1, const char *s2, size_t *first_change); |
|
int index_dir_exists(struct index_state *istate, const char *name, int namelen); |
|
void adjust_dirname_case(struct index_state *istate, char *name); |
|
struct cache_entry *index_file_exists(struct index_state *istate, const char *name, int namelen, int igncase); |
|
|
|
/* |
|
* Searches for an entry defined by name and namelen in the given index. |
|
* If the return value is positive (including 0) it is the position of an |
|
* exact match. If the return value is negative, the negated value minus 1 |
|
* is the position where the entry would be inserted. |
|
* Example: The current index consists of these files and its stages: |
|
* |
|
* b#0, d#0, f#1, f#3 |
|
* |
|
* index_name_pos(&index, "a", 1) -> -1 |
|
* index_name_pos(&index, "b", 1) -> 0 |
|
* index_name_pos(&index, "c", 1) -> -2 |
|
* index_name_pos(&index, "d", 1) -> 1 |
|
* index_name_pos(&index, "e", 1) -> -3 |
|
* index_name_pos(&index, "f", 1) -> -3 |
|
* index_name_pos(&index, "g", 1) -> -5 |
|
*/ |
|
int index_name_pos(const struct index_state *, const char *name, int namelen); |
|
|
|
/* |
|
* Some functions return the negative complement of an insert position when a |
|
* precise match was not found but a position was found where the entry would |
|
* need to be inserted. This helper protects that logic from any integer |
|
* underflow. |
|
*/ |
|
static inline int index_pos_to_insert_pos(uintmax_t pos) |
|
{ |
|
if (pos > INT_MAX) |
|
die("overflow: -1 - %"PRIuMAX, pos); |
|
return -1 - (int)pos; |
|
} |
|
|
|
#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 */ |
|
#define ADD_CACHE_RENORMALIZE 64 /* Pass along HASH_RENORMALIZE */ |
|
int add_index_entry(struct index_state *, struct cache_entry *ce, int option); |
|
void rename_index_entry_at(struct index_state *, int pos, const char *new_name); |
|
|
|
/* Remove entry, return true if there are more entries to go. */ |
|
int remove_index_entry_at(struct index_state *, int pos); |
|
|
|
void remove_marked_cache_entries(struct index_state *istate, int invalidate); |
|
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 |
|
/* |
|
* These two are used to add the contents of the file at path |
|
* to the index, marking the working tree up-to-date by storing |
|
* the cached stat info in the resulting cache entry. A caller |
|
* that has already run lstat(2) on the path can call |
|
* add_to_index(), and all others can call add_file_to_index(); |
|
* the latter will do necessary lstat(2) internally before |
|
* calling the former. |
|
*/ |
|
int add_to_index(struct index_state *, const char *path, struct stat *, int flags); |
|
int add_file_to_index(struct index_state *, const char *path, int flags); |
|
|
|
int chmod_index_entry(struct index_state *, struct cache_entry *ce, char flip); |
|
int ce_same_name(const struct cache_entry *a, const struct cache_entry *b); |
|
void set_object_name_for_intent_to_add_entry(struct cache_entry *ce); |
|
int index_name_is_other(const struct index_state *, const char *, int); |
|
void *read_blob_data_from_index(const 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 |
|
/* don't refresh_fsmonitor state or do stat comparison even if CE_FSMONITOR_VALID is true */ |
|
#define CE_MATCH_IGNORE_FSMONITOR 0X20 |
|
int is_racy_timestamp(const struct index_state *istate, |
|
const struct cache_entry *ce); |
|
int ie_match_stat(struct index_state *, const struct cache_entry *, struct stat *, unsigned int); |
|
int ie_modified(struct index_state *, const struct cache_entry *, struct stat *, unsigned int); |
|
|
|
#define HASH_WRITE_OBJECT 1 |
|
#define HASH_FORMAT_CHECK 2 |
|
#define HASH_RENORMALIZE 4 |
|
int index_fd(struct index_state *istate, struct object_id *oid, int fd, struct stat *st, enum object_type type, const char *path, unsigned flags); |
|
int index_path(struct index_state *istate, struct object_id *oid, const char *path, struct stat *st, unsigned flags); |
|
|
|
/* |
|
* Record to sd the data from st that we use to check whether a file |
|
* might have changed. |
|
*/ |
|
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. |
|
*/ |
|
int match_stat_data(const struct stat_data *sd, struct stat *st); |
|
int match_stat_data_racy(const struct index_state *istate, |
|
const struct stat_data *sd, struct stat *st); |
|
|
|
void fill_stat_cache_info(struct index_state *istate, 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" */ |
|
#define REFRESH_PROGRESS 0x0040 /* show progress bar if stderr is tty */ |
|
int refresh_index(struct index_state *, unsigned int flags, const struct pathspec *pathspec, char *seen, const char *header_msg); |
|
/* |
|
* Refresh the index and write it to disk. |
|
* |
|
* 'refresh_flags' is passed directly to 'refresh_index()', while |
|
* 'COMMIT_LOCK | write_flags' is passed to 'write_locked_index()', so |
|
* the lockfile is always either committed or rolled back. |
|
* |
|
* If 'gentle' is passed, errors locking the index are ignored. |
|
* |
|
* Return 1 if refreshing the index returns an error, -1 if writing |
|
* the index to disk fails, 0 on success. |
|
* |
|
* Note that if refreshing the index returns an error, we still write |
|
* out the index (unless locking fails). |
|
*/ |
|
int repo_refresh_and_write_index(struct repository*, unsigned int refresh_flags, unsigned int write_flags, int gentle, const struct pathspec *, char *seen, const char *header_msg); |
|
|
|
struct cache_entry *refresh_cache_entry(struct index_state *, struct cache_entry *, unsigned int); |
|
|
|
void set_alternate_index_output(const char *); |
|
|
|
extern int verify_index_checksum; |
|
extern int verify_ce_order; |
|
|
|
/* 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 warn_ambiguous_refs; |
|
extern int warn_on_object_refname_ambiguity; |
|
extern char *apply_default_whitespace; |
|
extern char *apply_default_ignorewhitespace; |
|
extern const char *git_attributes_file; |
|
extern const char *git_hooks_path; |
|
extern int zlib_compression_level; |
|
extern int core_compression_level; |
|
extern int pack_compression_level; |
|
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; |
|
|
|
/* |
|
* Accessors for the core.sharedrepository config which lazy-load the value |
|
* from the config (if not already set). The "reset" function can be |
|
* used to unset "set" or cached value, meaning that the value will be loaded |
|
* fresh from the config file on the next call to get_shared_repository(). |
|
*/ |
|
void set_shared_repository(int value); |
|
int get_shared_repository(void); |
|
void reset_shared_repository(void); |
|
|
|
/* |
|
* 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. |
|
*/ |
|
extern int read_replace_refs; |
|
extern char *git_replace_ref_base; |
|
|
|
extern int fsync_object_files; |
|
extern int core_preload_index; |
|
extern int precomposed_unicode; |
|
extern int protect_hfs; |
|
extern int protect_ntfs; |
|
extern const char *core_fsmonitor; |
|
|
|
extern int core_apply_sparse_checkout; |
|
extern int core_sparse_checkout_cone; |
|
|
|
/* |
|
* Include broken refs in all ref iterations, which will |
|
* generally choke dangerous operations rather than letting |
|
* them silently proceed without taking the broken ref into |
|
* account. |
|
*/ |
|
extern int ref_paranoia; |
|
|
|
/* |
|
* Returns the boolean value of $GIT_OPTIONAL_LOCKS (or the default value). |
|
*/ |
|
int use_optional_locks(void); |
|
|
|
/* |
|
* 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 log_refs_config { |
|
LOG_REFS_UNSET = -1, |
|
LOG_REFS_NONE = 0, |
|
LOG_REFS_NORMAL, |
|
LOG_REFS_ALWAYS |
|
}; |
|
extern enum log_refs_config log_all_ref_updates; |
|
|
|
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 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; |
|
|
|
/* |
|
* GIT_REPO_VERSION is the version we write by default. The |
|
* _READ variant is the highest number we know how to |
|
* handle. |
|
*/ |
|
#define GIT_REPO_VERSION 0 |
|
#define GIT_REPO_VERSION_READ 1 |
|
extern int repository_format_precious_objects; |
|
extern int repository_format_worktree_config; |
|
|
|
/* |
|
* You _have_ to initialize a `struct repository_format` using |
|
* `= REPOSITORY_FORMAT_INIT` before calling `read_repository_format()`. |
|
*/ |
|
struct repository_format { |
|
int version; |
|
int precious_objects; |
|
char *partial_clone; /* value of extensions.partialclone */ |
|
int worktree_config; |
|
int is_bare; |
|
int hash_algo; |
|
char *work_tree; |
|
struct string_list unknown_extensions; |
|
struct string_list v1_only_extensions; |
|
}; |
|
|
|
/* |
|
* Always use this to initialize a `struct repository_format` |
|
* to a well-defined, default state before calling |
|
* `read_repository()`. |
|
*/ |
|
#define REPOSITORY_FORMAT_INIT \ |
|
{ \ |
|
.version = -1, \ |
|
.is_bare = -1, \ |
|
.hash_algo = GIT_HASH_SHA1, \ |
|
.unknown_extensions = STRING_LIST_INIT_DUP, \ |
|
.v1_only_extensions = STRING_LIST_INIT_DUP, \ |
|
} |
|
|
|
/* |
|
* Read the repository format characteristics from the config file "path" into |
|
* "format" struct. Returns the numeric version. On error, or if no version is |
|
* found in the configuration, -1 is returned, format->version is set to -1, |
|
* and all other fields in the struct are set to the default configuration |
|
* (REPOSITORY_FORMAT_INIT). Always initialize the struct using |
|
* REPOSITORY_FORMAT_INIT before calling this function. |
|
*/ |
|
int read_repository_format(struct repository_format *format, const char *path); |
|
|
|
/* |
|
* Free the memory held onto by `format`, but not the struct itself. |
|
* (No need to use this after `read_repository_format()` fails.) |
|
*/ |
|
void clear_repository_format(struct repository_format *format); |
|
|
|
/* |
|
* Verify that the repository described by repository_format is something we |
|
* can read. If it is, return 0. Otherwise, return -1, and "err" will describe |
|
* any errors encountered. |
|
*/ |
|
int verify_repository_format(const struct repository_format *format, |
|
struct strbuf *err); |
|
|
|
/* |
|
* Check the repository format version in the path found in get_git_dir(), |
|
* and die if it is a version we don't understand. Generally one would |
|
* set_git_dir() before calling this, and use it only for "are we in a valid |
|
* repo?". |
|
* |
|
* If successful and fmt is not NULL, fill fmt with data. |
|
*/ |
|
void check_repository_format(struct repository_format *fmt); |
|
|
|
#define MTIME_CHANGED 0x0001 |
|
#define CTIME_CHANGED 0x0002 |
|
#define OWNER_CHANGED 0x0004 |
|
#define MODE_CHANGED 0x0008 |
|
#define INODE_CHANGED 0x0010 |
|
#define DATA_CHANGED 0x0020 |
|
#define TYPE_CHANGED 0x0040 |
|
|
|
/* |
|
* Return an abbreviated sha1 unique within this repository's object database. |
|
* The result will be at least `len` characters long, and will be NUL |
|
* terminated. |
|
* |
|
* The non-`_r` version returns a static buffer which remains valid until 4 |
|
* more calls to find_unique_abbrev are made. |
|
* |
|
* The `_r` variant writes to a buffer supplied by the caller, which must be at |
|
* least `GIT_MAX_HEXSZ + 1` bytes. The return value is the number of bytes |
|
* written (excluding the NUL terminator). |
|
* |
|
* Note that while this version avoids the static buffer, it is not fully |
|
* reentrant, as it calls into other non-reentrant git code. |
|
*/ |
|
const char *repo_find_unique_abbrev(struct repository *r, const struct object_id *oid, int len); |
|
#define find_unique_abbrev(oid, len) repo_find_unique_abbrev(the_repository, oid, len) |
|
int repo_find_unique_abbrev_r(struct repository *r, char *hex, const struct object_id *oid, int len); |
|
#define find_unique_abbrev_r(hex, oid, len) repo_find_unique_abbrev_r(the_repository, hex, oid, 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. On error, set errno to describe the |
|
* problem. |
|
* |
|
* SCLD_VANISHED indicates that one of the ancestor directories of the |
|
* path existed at one point during the function call and then |
|
* suddenly vanished, probably because another process pruned the |
|
* directory while we were working. To be robust against this kind of |
|
* race, callers might want to try invoking the function again when it |
|
* returns SCLD_VANISHED. |
|
* |
|
* safe_create_leading_directories() temporarily changes path while it |
|
* is working but restores it before returning. |
|
* safe_create_leading_directories_const() doesn't modify path, even |
|
* temporarily. Both these variants adjust the permissions of the |
|
* created directories to honor core.sharedRepository, so they are best |
|
* suited for files inside the git dir. For working tree files, use |
|
* safe_create_leading_directories_no_share() instead, as it ignores |
|
* the core.sharedRepository setting. |
|
*/ |
|
enum scld_error { |
|
SCLD_OK = 0, |
|
SCLD_FAILED = -1, |
|
SCLD_PERMS = -2, |
|
SCLD_EXISTS = -3, |
|
SCLD_VANISHED = -4 |
|
}; |
|
enum scld_error safe_create_leading_directories(char *path); |
|
enum scld_error safe_create_leading_directories_const(const char *path); |
|
enum scld_error safe_create_leading_directories_no_share(char *path); |
|
|
|
/* |
|
* Callback function for raceproof_create_file(). This function is |
|
* expected to do something that makes dirname(path) permanent despite |
|
* the fact that other processes might be cleaning up empty |
|
* directories at the same time. Usually it will create a file named |
|
* path, but alternatively it could create another file in that |
|
* directory, or even chdir() into that directory. The function should |
|
* return 0 if the action was completed successfully. On error, it |
|
* should return a nonzero result and set errno. |
|
* raceproof_create_file() treats two errno values specially: |
|
* |
|
* - ENOENT -- dirname(path) does not exist. In this case, |
|
* raceproof_create_file() tries creating dirname(path) |
|
* (and any parent directories, if necessary) and calls |
|
* the function again. |
|
* |
|
* - EISDIR -- the file already exists and is a directory. In this |
|
* case, raceproof_create_file() removes the directory if |
|
* it is empty (and recursively any empty directories that |
|
* it contains) and calls the function again. |
|
* |
|
* Any other errno causes raceproof_create_file() to fail with the |
|
* callback's return value and errno. |
|
* |
|
* Obviously, this function should be OK with being called again if it |
|
* fails with ENOENT or EISDIR. In other scenarios it will not be |
|
* called again. |
|
*/ |
|
typedef int create_file_fn(const char *path, void *cb); |
|
|
|
/* |
|
* Create a file in dirname(path) by calling fn, creating leading |
|
* directories if necessary. Retry a few times in case we are racing |
|
* with another process that is trying to clean up the directory that |
|
* contains path. See the documentation for create_file_fn for more |
|
* details. |
|
* |
|
* Return the value and set the errno that resulted from the most |
|
* recent call of fn. fn is always called at least once, and will be |
|
* called more than once if it returns ENOENT or EISDIR. |
|
*/ |
|
int raceproof_create_file(const char *path, create_file_fn fn, void *cb); |
|
|
|
int mkdir_in_gitdir(const char *path); |
|
char *expand_user_path(const char *path, int real_home); |
|
const char *enter_repo(const char *path, int strict); |
|
static inline int is_absolute_path(const char *path) |
|
{ |
|
return is_dir_sep(path[0]) || has_dos_drive_prefix(path); |
|
} |
|
int is_directory(const char *); |
|
char *strbuf_realpath(struct strbuf *resolved, const char *path, |
|
int die_on_error); |
|
char *strbuf_realpath_forgiving(struct strbuf *resolved, const char *path, |
|
int die_on_error); |
|
char *real_pathdup(const char *path, int die_on_error); |
|
const char *absolute_path(const char *path); |
|
char *absolute_pathdup(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); |
|
|
|
/* |
|
* These functions match their is_hfs_dotgit() counterparts; see utf8.h for |
|
* details. |
|
*/ |
|
int is_ntfs_dotgit(const char *name); |
|
int is_ntfs_dotgitmodules(const char *name); |
|
int is_ntfs_dotgitignore(const char *name); |
|
int is_ntfs_dotgitattributes(const char *name); |
|
|
|
/* |
|
* Returns true iff "str" could be confused as a command-line option when |
|
* passed to a sub-program like "ssh". Note that this has nothing to do with |
|
* shell-quoting, which should be handled separately; we're assuming here that |
|
* the string makes it verbatim to the sub-program. |
|
*/ |
|
int looks_like_command_line_option(const char *str); |
|
|
|
/** |
|
* Return a newly allocated string with the evaluation of |
|
* "$XDG_CONFIG_HOME/git/$filename" if $XDG_CONFIG_HOME is non-empty, otherwise |
|
* "$HOME/.config/git/$filename". Return NULL upon error. |
|
*/ |
|
char *xdg_config_home(const char *filename); |
|
|
|
/** |
|
* Return a newly allocated string with the evaluation of |
|
* "$XDG_CACHE_HOME/git/$filename" if $XDG_CACHE_HOME is non-empty, otherwise |
|
* "$HOME/.cache/git/$filename". Return NULL upon error. |
|
*/ |
|
char *xdg_cache_home(const char *filename); |
|
|
|
int git_open_cloexec(const char *name, int flags); |
|
#define git_open(name) git_open_cloexec(name, O_RDONLY) |
|
int unpack_loose_header(git_zstream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz); |
|
int parse_loose_header(const char *hdr, unsigned long *sizep); |
|
|
|
int check_object_signature(struct repository *r, const struct object_id *oid, |
|
void *buf, unsigned long size, const char *type); |
|
|
|
int finalize_object_file(const char *tmpfile, const char *filename); |
|
|
|
/* Helper to check and "touch" a file */ |
|
int check_and_freshen_file(const char *fn, int freshen); |
|
|
|
extern const signed char hexval_table[256]; |
|
static inline unsigned int hexval(unsigned char c) |
|
{ |
|
return hexval_table[c]; |
|
} |
|
|
|
/* |
|
* Convert two consecutive hexadecimal digits into a char. Return a |
|
* negative value on error. Don't run over the end of short strings. |
|
*/ |
|
static inline int hex2chr(const char *s) |
|
{ |
|
unsigned int val = hexval(s[0]); |
|
return (val & ~0xf) ? val : (val << 4) | hexval(s[1]); |
|
} |
|
|
|
/* Convert to/from hex/sha1 representation */ |
|
#define MINIMUM_ABBREV minimum_abbrev |
|
#define DEFAULT_ABBREV default_abbrev |
|
|
|
/* used when the code does not know or care what the default abbrev is */ |
|
#define FALLBACK_DEFAULT_ABBREV 7 |
|
|
|
struct object_context { |
|
unsigned short mode; |
|
/* |
|
* symlink_path is only used by get_tree_entry_follow_symlinks, |
|
* and only for symlinks that point outside the repository. |
|
*/ |
|
struct strbuf symlink_path; |
|
/* |
|
* If GET_OID_RECORD_PATH is set, this will record path (if any) |
|
* found when resolving the name. The caller is responsible for |
|
* releasing the memory. |
|
*/ |
|
char *path; |
|
}; |
|
|
|
#define GET_OID_QUIETLY 01 |
|
#define GET_OID_COMMIT 02 |
|
#define GET_OID_COMMITTISH 04 |
|
#define GET_OID_TREE 010 |
|
#define GET_OID_TREEISH 020 |
|
#define GET_OID_BLOB 040 |
|
#define GET_OID_FOLLOW_SYMLINKS 0100 |
|
#define GET_OID_RECORD_PATH 0200 |
|
#define GET_OID_ONLY_TO_DIE 04000 |
|
|
|
#define GET_OID_DISAMBIGUATORS \ |
|
(GET_OID_COMMIT | GET_OID_COMMITTISH | \ |
|
GET_OID_TREE | GET_OID_TREEISH | \ |
|
GET_OID_BLOB) |
|
|
|
enum get_oid_result { |
|
FOUND = 0, |
|
MISSING_OBJECT = -1, /* The requested object is missing */ |
|
SHORT_NAME_AMBIGUOUS = -2, |
|
/* The following only apply when symlinks are followed */ |
|
DANGLING_SYMLINK = -4, /* |
|
* The initial symlink is there, but |
|
* (transitively) points to a missing |
|
* in-tree file |
|
*/ |
|
SYMLINK_LOOP = -5, |
|
NOT_DIR = -6, /* |
|
* Somewhere along the symlink chain, a path is |
|
* requested which contains a file as a |
|
* non-final element. |
|
*/ |
|
}; |
|
|
|
int repo_get_oid(struct repository *r, const char *str, struct object_id *oid); |
|
int get_oidf(struct object_id *oid, const char *fmt, ...); |
|
int repo_get_oid_commit(struct repository *r, const char *str, struct object_id *oid); |
|
int repo_get_oid_committish(struct repository *r, const char *str, struct object_id *oid); |
|
int repo_get_oid_tree(struct repository *r, const char *str, struct object_id *oid); |
|
int repo_get_oid_treeish(struct repository *r, const char *str, struct object_id *oid); |
|
int repo_get_oid_blob(struct repository *r, const char *str, struct object_id *oid); |
|
int repo_get_oid_mb(struct repository *r, const char *str, struct object_id *oid); |
|
void maybe_die_on_misspelt_object_name(struct repository *repo, |
|
const char *name, |
|
const char *prefix); |
|
enum get_oid_result get_oid_with_context(struct repository *repo, const char *str, |
|
unsigned flags, struct object_id *oid, |
|
struct object_context *oc); |
|
|
|
#define get_oid(str, oid) repo_get_oid(the_repository, str, oid) |
|
#define get_oid_commit(str, oid) repo_get_oid_commit(the_repository, str, oid) |
|
#define get_oid_committish(str, oid) repo_get_oid_committish(the_repository, str, oid) |
|
#define get_oid_tree(str, oid) repo_get_oid_tree(the_repository, str, oid) |
|
#define get_oid_treeish(str, oid) repo_get_oid_treeish(the_repository, str, oid) |
|
#define get_oid_blob(str, oid) repo_get_oid_blob(the_repository, str, oid) |
|
#define get_oid_mb(str, oid) repo_get_oid_mb(the_repository, str, oid) |
|
|
|
typedef int each_abbrev_fn(const struct object_id *oid, void *); |
|
int repo_for_each_abbrev(struct repository *r, const char *prefix, each_abbrev_fn, void *); |
|
#define for_each_abbrev(prefix, fn, data) repo_for_each_abbrev(the_repository, prefix, fn, data) |
|
|
|
int set_disambiguate_hint_config(const char *var, const char *value); |
|
|
|
/* |
|
* 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. |
|
*/ |
|
int get_sha1_hex(const char *hex, unsigned char *sha1); |
|
int get_oid_hex(const char *hex, struct object_id *sha1); |
|
|
|
/* Like get_oid_hex, but for an arbitrary hash algorithm. */ |
|
int get_oid_hex_algop(const char *hex, struct object_id *oid, const struct git_hash_algo *algop); |
|
|
|
/* |
|
* Read `len` pairs of hexadecimal digits from `hex` and write the |
|
* values to `binary` as `len` bytes. Return 0 on success, or -1 if |
|
* the input does not consist of hex digits). |
|
*/ |
|
int hex_to_bytes(unsigned char *binary, const char *hex, size_t len); |
|
|
|
/* |
|
* Convert a binary hash in "unsigned char []" or an object name in |
|
* "struct object_id *" to its hex equivalent. The `_r` variant is reentrant, |
|
* and writes the NUL-terminated output to the buffer `out`, which must be at |
|
* least `GIT_MAX_HEXSZ + 1` bytes, and returns a pointer to out for |
|
* convenience. |
|
* |
|
* The non-`_r` variant returns a static buffer, but uses a ring of 4 |
|
* buffers, making it safe to make multiple calls for a single statement, like: |
|
* |
|
* printf("%s -> %s", hash_to_hex(one), hash_to_hex(two)); |
|
* printf("%s -> %s", oid_to_hex(one), oid_to_hex(two)); |
|
*/ |
|
char *hash_to_hex_algop_r(char *buffer, const unsigned char *hash, const struct git_hash_algo *); |
|
char *oid_to_hex_r(char *out, const struct object_id *oid); |
|
char *hash_to_hex_algop(const unsigned char *hash, const struct git_hash_algo *); /* static buffer result! */ |
|
char *hash_to_hex(const unsigned char *hash); /* same static buffer */ |
|
char *oid_to_hex(const struct object_id *oid); /* same static buffer */ |
|
|
|
/* |
|
* Parse a 40-character hexadecimal object ID starting from hex, updating the |
|
* pointer specified by end when parsing stops. The resulting object ID is |
|
* stored in oid. Returns 0 on success. Parsing will stop on the first NUL or |
|
* other invalid character. end is only updated on success; otherwise, it is |
|
* unmodified. |
|
*/ |
|
int parse_oid_hex(const char *hex, struct object_id *oid, const char **end); |
|
|
|
/* Like parse_oid_hex, but for an arbitrary hash algorithm. */ |
|
int parse_oid_hex_algop(const char *hex, struct object_id *oid, const char **end, |
|
const struct git_hash_algo *algo); |
|
|
|
|
|
/* |
|
* These functions work like get_oid_hex and parse_oid_hex, but they will parse |
|
* a hex value for any algorithm. The algorithm is detected based on the length |
|
* and the algorithm in use is returned. If this is not a hex object ID in any |
|
* algorithm, returns GIT_HASH_UNKNOWN. |
|
*/ |
|
int get_oid_hex_any(const char *hex, struct object_id *oid); |
|
int parse_oid_hex_any(const char *hex, struct object_id *oid, const char **end); |
|
|
|
/* |
|
* This reads short-hand syntax that not only evaluates to a commit |
|
* object name, but also can act as if the end user spelled the name |
|
* of the branch from the command line. |
|
* |
|
* - "@{-N}" finds the name of the Nth previous branch we were on, and |
|
* places the name of the branch in the given buf and returns the |
|
* number of characters parsed if successful. |
|
* |
|
* - "<branch>@{upstream}" finds the name of the other ref that |
|
* <branch> is configured to merge with (missing <branch> defaults |
|
* to the current branch), and places the name of the branch in the |
|
* given buf and returns the number of characters parsed if |
|
* successful. |
|
* |
|
* If the input is not of the accepted format, it returns a negative |
|
* number to signal an error. |
|
* |
|
* If the input was ok but there are not N branch switches in the |
|
* reflog, it returns 0. |
|
*/ |
|
#define INTERPRET_BRANCH_LOCAL (1<<0) |
|
#define INTERPRET_BRANCH_REMOTE (1<<1) |
|
#define INTERPRET_BRANCH_HEAD (1<<2) |
|
struct interpret_branch_name_options { |
|
/* |
|
* If "allowed" is non-zero, it is a treated as a bitfield of allowable |
|
* expansions: local branches ("refs/heads/"), remote branches |
|
* ("refs/remotes/"), or "HEAD". If no "allowed" bits are set, any expansion is |
|
* allowed, even ones to refs outside of those namespaces. |
|
*/ |
|
unsigned allowed; |
|
|
|
/* |
|
* If ^{upstream} or ^{push} (or equivalent) is requested, and the |
|
* branch in question does not have such a reference, return -1 instead |
|
* of die()-ing. |
|
*/ |
|
unsigned nonfatal_dangling_mark : 1; |
|
}; |
|
int repo_interpret_branch_name(struct repository *r, |
|
const char *str, int len, |
|
struct strbuf *buf, |
|
const struct interpret_branch_name_options *options); |
|
#define interpret_branch_name(str, len, buf, options) \ |
|
repo_interpret_branch_name(the_repository, str, len, buf, options) |
|
|
|
int validate_headref(const char *ref); |
|
|
|
int base_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2); |
|
int df_name_compare(const char *name1, int len1, int mode1, const char *name2, int len2, int mode2); |
|
int name_compare(const char *name1, size_t len1, const char *name2, size_t len2); |
|
int cache_name_stage_compare(const char *name1, int len1, int stage1, const char *name2, int len2, int stage2); |
|
|
|
void *read_object_with_reference(struct repository *r, |
|
const struct object_id *oid, |
|
const char *required_type, |
|
unsigned long *size, |
|
struct object_id *oid_ret); |
|
|
|
struct object *repo_peel_to_type(struct repository *r, |
|
const char *name, int namelen, |
|
struct object *o, enum object_type); |
|
#define peel_to_type(name, namelen, obj, type) \ |
|
repo_peel_to_type(the_repository, name, namelen, obj, type) |
|
|
|
enum date_mode_type { |
|
DATE_NORMAL = 0, |
|
DATE_HUMAN, |
|
DATE_RELATIVE, |
|
DATE_SHORT, |
|
DATE_ISO8601, |
|
DATE_ISO8601_STRICT, |
|
DATE_RFC2822, |
|
DATE_STRFTIME, |
|
DATE_RAW, |
|
DATE_UNIX |
|
}; |
|
|
|
struct date_mode { |
|
enum date_mode_type type; |
|
const char *strftime_fmt; |
|
int local; |
|
}; |
|
|
|
/* |
|
* Convenience helper for passing a constant type, like: |
|
* |
|
* show_date(t, tz, DATE_MODE(NORMAL)); |
|
*/ |
|
#define DATE_MODE(t) date_mode_from_type(DATE_##t) |
|
struct date_mode *date_mode_from_type(enum date_mode_type type); |
|
|
|
const char *show_date(timestamp_t time, int timezone, const struct date_mode *mode); |
|
void show_date_relative(timestamp_t time, struct strbuf *timebuf); |
|
void show_date_human(timestamp_t time, int tz, const struct timeval *now, |
|
struct strbuf *timebuf); |
|
int parse_date(const char *date, struct strbuf *out); |
|
int parse_date_basic(const char *date, timestamp_t *timestamp, int *offset); |
|
int parse_expiry_date(const char *date, timestamp_t *timestamp); |
|
void datestamp(struct strbuf *out); |
|
#define approxidate(s) approxidate_careful((s), NULL) |
|
timestamp_t approxidate_careful(const char *, int *); |
|
timestamp_t approxidate_relative(const char *date); |
|
void parse_date_format(const char *format, struct date_mode *mode); |
|
int date_overflows(timestamp_t date); |
|
|
|
#define IDENT_STRICT 1 |
|
#define IDENT_NO_DATE 2 |
|
#define IDENT_NO_NAME 4 |
|
|
|
enum want_ident { |
|
WANT_BLANK_IDENT, |
|
WANT_AUTHOR_IDENT, |
|
WANT_COMMITTER_IDENT |
|
}; |
|
|
|
const char *git_author_info(int); |
|
const char *git_committer_info(int); |
|
const char *fmt_ident(const char *name, const char *email, |
|
enum want_ident whose_ident, |
|
const char *date_str, int); |
|
const char *fmt_name(enum want_ident); |
|
const char *ident_default_name(void); |
|
const char *ident_default_email(void); |
|
const char *git_editor(void); |
|
const char *git_sequence_editor(void); |
|
const char *git_pager(int stdout_is_tty); |
|
int is_terminal_dumb(void); |
|
int git_ident_config(const char *, const char *, void *); |
|
/* |
|
* Prepare an ident to fall back on if the user didn't configure it. |
|
*/ |
|
void prepare_fallback_ident(const char *name, const char *email); |
|
void reset_ident_date(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 |
|
*/ |
|
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, |
|
const struct 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. |
|
*/ |
|
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; |
|
struct delayed_checkout *delayed_checkout; |
|
struct checkout_metadata meta; |
|
unsigned force:1, |
|
quiet:1, |
|
not_new:1, |
|
clone:1, |
|
refresh_cache:1; |
|
}; |
|
#define CHECKOUT_INIT { NULL, "" } |
|
|
|
#define TEMPORARY_FILENAME_LENGTH 25 |
|
int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath, int *nr_checkouts); |
|
void enable_delayed_checkout(struct checkout *state); |
|
int finish_delayed_checkout(struct checkout *state, int *nr_checkouts); |
|
/* |
|
* Unlink the last component and schedule the leading directories for |
|
* removal, such that empty directories get removed. |
|
*/ |
|
void unlink_entry(const struct cache_entry *ce); |
|
|
|
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); |
|
} |
|
|
|
int has_symlink_leading_path(const char *name, int len); |
|
int threaded_has_symlink_leading_path(struct cache_def *, const char *, int); |
|
int check_leading_path(const char *name, int len); |
|
int has_dirs_only_path(const char *name, int len, int prefix_len); |
|
void schedule_dir_for_removal(const char *name, int len); |
|
void remove_scheduled_dirs(void); |
|
|
|
struct pack_window { |
|
struct pack_window *next; |
|
unsigned char *base; |
|
off_t offset; |
|
size_t len; |
|
unsigned int last_used; |
|
unsigned int inuse_cnt; |
|
}; |
|
|
|
struct pack_entry { |
|
off_t offset; |
|
struct packed_git *p; |
|
}; |
|
|
|
/* |
|
* Create a temporary file rooted in the object database directory, or |
|
* die on failure. The filename is taken from "pattern", which should have the |
|
* usual "XXXXXX" trailer, and the resulting filename is written into the |
|
* "template" buffer. Returns the open descriptor. |
|
*/ |
|
int odb_mkstemp(struct strbuf *temp_filename, const char *pattern); |
|
|
|
/* |
|
* Create a pack .keep file named "name" (which should generally be the output |
|
* of odb_pack_name). Returns a file descriptor opened for writing, or -1 on |
|
* error. |
|
*/ |
|
int odb_pack_keep(const char *name); |
|
|
|
/* |
|
* Set this to 0 to prevent oid_object_info_extended() from fetching missing |
|
* blobs. This has a difference only if extensions.partialClone is set. |
|
* |
|
* Its default value is 1. |
|
*/ |
|
extern int fetch_if_missing; |
|
|
|
/* Dumb servers support */ |
|
int update_server_info(int); |
|
|
|
const char *get_log_output_encoding(void); |
|
const char *get_commit_output_encoding(void); |
|
|
|
/* |
|
* This is a hack for test programs like test-dump-untracked-cache to |
|
* ensure that they do not modify the untracked cache when reading it. |
|
* Do not use it otherwise! |
|
*/ |
|
extern int ignore_untracked_cache_config; |
|
|
|
int committer_ident_sufficiently_given(void); |
|
int author_ident_sufficiently_given(void); |
|
|
|
extern const char *git_commit_encoding; |
|
extern const char *git_log_output_encoding; |
|
extern const char *git_mailmap_file; |
|
extern const char *git_mailmap_blob; |
|
|
|
/* IO helper functions */ |
|
void maybe_flush_or_die(FILE *, const char *); |
|
__attribute__((format (printf, 2, 3))) |
|
void fprintf_or_die(FILE *, const char *fmt, ...); |
|
|
|
#define COPY_READ_ERROR (-2) |
|
#define COPY_WRITE_ERROR (-3) |
|
int copy_fd(int ifd, int ofd); |
|
int copy_file(const char *dst, const char *src, int mode); |
|
int copy_file_with_time(const char *dst, const char *src, int mode); |
|
|
|
void write_or_die(int fd, const void *buf, size_t count); |
|
void fsync_or_die(int fd, const char *); |
|
|
|
ssize_t read_in_full(int fd, void *buf, size_t count); |
|
ssize_t write_in_full(int fd, const void *buf, size_t count); |
|
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)); |
|
} |
|
|
|
/** |
|
* Open (and truncate) the file at path, write the contents of buf to it, |
|
* and close it. Dies if any errors are encountered. |
|
*/ |
|
void write_file_buf(const char *path, const char *buf, size_t len); |
|
|
|
/** |
|
* Like write_file_buf(), but format the contents into a buffer first. |
|
* Additionally, write_file() will append a newline if one is not already |
|
* present, making it convenient to write text files: |
|
* |
|
* write_file(path, "counter: %d", ctr); |
|
*/ |
|
__attribute__((format (printf, 2, 3))) |
|
void write_file(const char *path, const char *fmt, ...); |
|
|
|
/* pager.c */ |
|
void setup_pager(void); |
|
int pager_in_use(void); |
|
extern int pager_use_color; |
|
int term_columns(void); |
|
void term_clear_line(void); |
|
int decimal_width(uintmax_t); |
|
int check_pager_config(const char *cmd); |
|
void prepare_pager_args(struct child_process *, const char *pager); |
|
|
|
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); |
|
|
|
/* 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(struct repository *, const struct object_id *, const struct object_id *, struct object_id *, int); |
|
void shift_tree_by(struct repository *, const struct object_id *, const struct object_id *, struct object_id *, const char *); |
|
|
|
/* |
|
* whitespace rules. |
|
* used by both diff and apply |
|
* last two digits are tab width |
|
*/ |
|
#define WS_BLANK_AT_EOL 0100 |
|
#define WS_SPACE_BEFORE_TAB 0200 |
|
#define WS_INDENT_WITH_NON_TAB 0400 |
|
#define WS_CR_AT_EOL 01000 |
|
#define WS_BLANK_AT_EOF 02000 |
|
#define WS_TAB_IN_INDENT 04000 |
|
#define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF) |
|
#define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB|8) |
|
#define WS_TAB_WIDTH_MASK 077 |
|
/* All WS_* -- when extended, adapt diff.c emit_symbol */ |
|
#define WS_RULE_MASK 07777 |
|
extern unsigned whitespace_rule_cfg; |
|
unsigned whitespace_rule(struct index_state *, const char *); |
|
unsigned parse_whitespace_rule(const char *); |
|
unsigned ws_check(const char *line, int len, unsigned ws_rule); |
|
void ws_check_emit(const char *line, int len, unsigned ws_rule, FILE *stream, const char *set, const char *reset, const char *ws); |
|
char *whitespace_error_string(unsigned ws); |
|
void ws_fix_copy(struct strbuf *, const char *, int, unsigned, int *); |
|
int ws_blank_line(const char *line, int len, unsigned ws_rule); |
|
#define ws_tab_width(rule) ((rule) & WS_TAB_WIDTH_MASK) |
|
|
|
/* ls-files */ |
|
void overlay_tree_on_index(struct index_state *istate, |
|
const char *tree_name, const char *prefix); |
|
|
|
/* setup.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(struct repository *r, |
|
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(struct repository *r, |
|
const struct object_id *from, |
|
const struct object_id *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); |
|
|
|
/* |
|
* Create a directory and (if share is nonzero) adjust its permissions |
|
* according to the shared_repository setting. Only use this for |
|
* directories under $GIT_DIR. Don't use it for working tree |
|
* directories. |
|
*/ |
|
void safe_create_dir(const char *dir, int share); |
|
|
|
/* |
|
* Should we print an ellipsis after an abbreviated SHA-1 value |
|
* when doing diff-raw output or indicating a detached HEAD? |
|
*/ |
|
int print_sha1_ellipsis(void); |
|
|
|
/* Return 1 if the file is empty or does not exists, 0 otherwise. */ |
|
int is_empty_or_missing_file(const char *filename); |
|
|
|
#endif /* CACHE_H */
|
|
|