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118 lines
2.9 KiB
C
118 lines
2.9 KiB
C
/*
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* Copyright (C) the libgit2 contributors. All rights reserved.
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*
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* This file is part of libgit2, distributed under the GNU GPL v2 with
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* a Linking Exception. For full terms see the included COPYING file.
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*/
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#ifndef INCLUDE_sys_git_midx_h__
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#define INCLUDE_sys_git_midx_h__
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#include "git2/common.h"
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#include "git2/types.h"
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/**
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* @file git2/sys/midx.h
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* @brief Incremental multi-pack indexes
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* @defgroup git_midx Incremental multi-pack indexes
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* @ingroup Git
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* @{
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*/
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GIT_BEGIN_DECL
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/**
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* Options structure for `git_midx_writer_options`.
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*
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* Initialize with `GIT_MIDX_WRITER_OPTIONS_INIT`. Alternatively,
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* you can use `git_midx_writer_options_init`.
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*/
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typedef struct {
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unsigned int version;
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#ifdef GIT_EXPERIMENTAL_SHA256
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/** The object ID type that this commit graph contains. */
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git_oid_t oid_type;
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#endif
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} git_midx_writer_options;
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/** Current version for the `git_midx_writer_options` structure */
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#define GIT_MIDX_WRITER_OPTIONS_VERSION 1
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/** Static constructor for `git_midx_writer_options` */
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#define GIT_MIDX_WRITER_OPTIONS_INIT { \
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GIT_MIDX_WRITER_OPTIONS_VERSION \
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}
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/**
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* Initialize git_midx_writer_options structure
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*
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* Initializes a `git_midx_writer_options` with default values.
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* Equivalent to creating an instance with
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* `GIT_MIDX_WRITER_OPTIONS_INIT`.
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*
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* @param opts The `git_midx_writer_options` struct to initialize.
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* @param version The struct version; pass `GIT_MIDX_WRITER_OPTIONS_VERSION`.
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* @return Zero on success; -1 on failure.
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*/
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GIT_EXTERN(int) git_midx_writer_options_init(
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git_midx_writer_options *opts,
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unsigned int version);
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/**
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* Create a new writer for `multi-pack-index` files.
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*
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* @param out location to store the writer pointer.
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* @param pack_dir the directory where the `.pack` and `.idx` files are. The
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* `multi-pack-index` file will be written in this directory, too.
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* @return 0 or an error code
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*/
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GIT_EXTERN(int) git_midx_writer_new(
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git_midx_writer **out,
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const char *pack_dir
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#ifdef GIT_EXPERIMENTAL_SHA256
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, git_midx_writer_options *options
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#endif
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);
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/**
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* Free the multi-pack-index writer and its resources.
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*
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* @param w the writer to free. If NULL no action is taken.
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*/
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GIT_EXTERN(void) git_midx_writer_free(git_midx_writer *w);
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/**
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* Add an `.idx` file to the writer.
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*
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* @param w the writer
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* @param idx_path the path of an `.idx` file.
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* @return 0 or an error code
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*/
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GIT_EXTERN(int) git_midx_writer_add(
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git_midx_writer *w,
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const char *idx_path);
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/**
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* Write a `multi-pack-index` file to a file.
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*
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* @param w the writer
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* @return 0 or an error code
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*/
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GIT_EXTERN(int) git_midx_writer_commit(
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git_midx_writer *w);
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/**
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* Dump the contents of the `multi-pack-index` to an in-memory buffer.
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*
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* @param midx Buffer where to store the contents of the `multi-pack-index`.
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* @param w the writer
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* @return 0 or an error code
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*/
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GIT_EXTERN(int) git_midx_writer_dump(
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git_buf *midx,
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git_midx_writer *w);
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/** @} */
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GIT_END_DECL
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#endif
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