1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#ifndef INCLUDE_git_odb_backend_h__
#define INCLUDE_git_odb_backend_h__
#include "git2/common.h"
#include "git2/types.h"
/**
* @file git2/backend.h
* @brief Git custom backend functions
* @defgroup git_odb Git object database routines
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/*
* Constructors for in-box ODB backends.
*/
/**
* Create a backend for the packfiles.
*
* @param out location to store the odb backend pointer
* @param objects_dir the Git repository's objects directory
*
* @return 0 or an error code
*/
GIT_EXTERN(int) git_odb_backend_pack(git_odb_backend **out, const char *objects_dir);
/**
* Create a backend for loose objects
*
* @param out location to store the odb backend pointer
* @param objects_dir the Git repository's objects directory
* @param compression_level zlib compression level to use
* @param do_fsync whether to do an fsync() after writing (currently ignored)
*
* @return 0 or an error code
*/
GIT_EXTERN(int) git_odb_backend_loose(git_odb_backend **out, const char *objects_dir, int compression_level, int do_fsync);
/**
* Create a backend out of a single packfile
*
* This can be useful for inspecting the contents of a single
* packfile.
*
* @param out location to store the odb backend pointer
* @param index_file path to the packfile's .idx file
*
* @return 0 or an error code
*/
GIT_EXTERN(int) git_odb_backend_one_pack(git_odb_backend **out, const char *index_file);
/** Streaming mode */
typedef enum {
GIT_STREAM_RDONLY = (1 << 1),
GIT_STREAM_WRONLY = (1 << 2),
GIT_STREAM_RW = (GIT_STREAM_RDONLY | GIT_STREAM_WRONLY),
} git_odb_stream_t;
/** A stream to read/write from a backend */
struct git_odb_stream {
git_odb_backend *backend;
unsigned int mode;
int (*read)(git_odb_stream *stream, char *buffer, size_t len);
int (*write)(git_odb_stream *stream, const char *buffer, size_t len);
int (*finalize_write)(git_oid *oid_p, git_odb_stream *stream);
void (*free)(git_odb_stream *stream);
};
/** A stream to write a pack file to the ODB */
struct git_odb_writepack {
git_odb_backend *backend;
int (*add)(git_odb_writepack *writepack, const void *data, size_t size, git_transfer_progress *stats);
int (*commit)(git_odb_writepack *writepack, git_transfer_progress *stats);
void (*free)(git_odb_writepack *writepack);
};
GIT_END_DECL
#endif
|
