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/*
* 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_indexer_h__
#define _INCLUDE_git_indexer_h__
#include "common.h"
#include "types.h"
#include "oid.h"
GIT_BEGIN_DECL
/** A git indexer object */
typedef struct git_indexer git_indexer;
/**
* This structure is used to provide callers information about the
* progress of indexing a packfile, either directly or part of a
* fetch or clone that downloads a packfile.
*/
typedef struct git_indexer_progress {
/** number of objects in the packfile being indexed */
unsigned int total_objects;
/** received objects that have been hashed */
unsigned int indexed_objects;
/** received_objects: objects which have been downloaded */
unsigned int received_objects;
/**
* locally-available objects that have been injected in order
* to fix a thin pack
*/
unsigned int local_objects;
/** number of deltas in the packfile being indexed */
unsigned int total_deltas;
/** received deltas that have been indexed */
unsigned int indexed_deltas;
/** size of the packfile received up to now */
size_t received_bytes;
} git_indexer_progress;
/**
* Type for progress callbacks during indexing. Return a value less
* than zero to cancel the indexing or download.
*
* @param stats Structure containing information about the state of the transfer
* @param payload Payload provided by caller
*/
typedef int GIT_CALLBACK(git_indexer_progress_cb)(const git_indexer_progress *stats, void *payload);
/**
* Options for indexer configuration
*/
typedef struct git_indexer_options {
unsigned int version;
/** progress_cb function to call with progress information */
git_indexer_progress_cb progress_cb;
/** progress_cb_payload payload for the progress callback */
void *progress_cb_payload;
/** Do connectivity checks for the received pack */
unsigned char verify;
} git_indexer_options;
#define GIT_INDEXER_OPTIONS_VERSION 1
#define GIT_INDEXER_OPTIONS_INIT { GIT_INDEXER_OPTIONS_VERSION }
/**
* Initializes a `git_indexer_options` with default values. Equivalent to
* creating an instance with GIT_INDEXER_OPTIONS_INIT.
*
* @param opts the `git_indexer_options` struct to initialize.
* @param version Version of struct; pass `GIT_INDEXER_OPTIONS_VERSION`
* @return Zero on success; -1 on failure.
*/
GIT_EXTERN(int) git_indexer_options_init(
git_indexer_options *opts,
unsigned int version);
/**
* Create a new indexer instance
*
* @param out where to store the indexer instance
* @param path to the directory where the packfile should be stored
* @param mode permissions to use creating packfile or 0 for defaults
* @param odb object database from which to read base objects when
* fixing thin packs. Pass NULL if no thin pack is expected (an error
* will be returned if there are bases missing)
* @param opts Optional structure containing additional options. See
* `git_indexer_options` above.
*/
GIT_EXTERN(int) git_indexer_new(
git_indexer **out,
const char *path,
unsigned int mode,
git_odb *odb,
git_indexer_options *opts);
/**
* Add data to the indexer
*
* @param idx the indexer
* @param data the data to add
* @param size the size of the data in bytes
* @param stats stat storage
*/
GIT_EXTERN(int) git_indexer_append(git_indexer *idx, const void *data, size_t size, git_indexer_progress *stats);
/**
* Finalize the pack and index
*
* Resolve any pending deltas and write out the index file
*
* @param idx the indexer
*/
GIT_EXTERN(int) git_indexer_commit(git_indexer *idx, git_indexer_progress *stats);
/**
* Get the packfile's hash
*
* A packfile's name is derived from the sorted hashing of all object
* names. This is only correct after the index has been finalized.
*
* @param idx the indexer instance
*/
GIT_EXTERN(const git_oid *) git_indexer_hash(const git_indexer *idx);
/**
* Free the indexer and its resources
*
* @param idx the indexer to free
*/
GIT_EXTERN(void) git_indexer_free(git_indexer *idx);
GIT_END_DECL
#endif
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