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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_sys_git_repository_h__
#define INCLUDE_sys_git_repository_h__
#include "git2/common.h"
#include "git2/types.h"
#include "git2/oid.h"
/**
* @file git2/sys/repository.h
* @brief Git repository custom implementation routines
* @defgroup git_backend Git custom backend APIs
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/**
* Create a new repository with neither backends nor config object
*
* Note that this is only useful if you wish to associate the repository
* with a non-filesystem-backed object database and config store.
*
* Caveats: since this repository has no physical location, some systems
* can fail to function properly: locations under $GIT_DIR, $GIT_COMMON_DIR,
* or $GIT_INFO_DIR are impacted.
*
* @param out The blank repository
* @return 0 on success, or an error code
*/
#ifdef GIT_EXPERIMENTAL_SHA256
GIT_EXTERN(int) git_repository_new(git_repository **out, git_oid_t oid_type);
#else
GIT_EXTERN(int) git_repository_new(git_repository **out);
#endif
/**
* Reset all the internal state in a repository.
*
* This will free all the mapped memory and internal objects
* of the repository and leave it in a "blank" state.
*
* There's no need to call this function directly unless you're
* trying to aggressively cleanup the repo before its
* deallocation. `git_repository_free` already performs this operation
* before deallocating the repo.
*
* @param repo The repository to clean up
* @return 0 on success, or an error code
*/
GIT_EXTERN(int) git_repository__cleanup(git_repository *repo);
/**
* Update the filesystem config settings for an open repository
*
* When a repository is initialized, config values are set based on the
* properties of the filesystem that the repository is on, such as
* "core.ignorecase", "core.filemode", "core.symlinks", etc. If the
* repository is moved to a new filesystem, these properties may no
* longer be correct and API calls may not behave as expected. This
* call reruns the phase of repository initialization that sets those
* properties to compensate for the current filesystem of the repo.
*
* @param repo A repository object
* @param recurse_submodules Should submodules be updated recursively
* @return 0 on success, < 0 on error
*/
GIT_EXTERN(int) git_repository_reinit_filesystem(
git_repository *repo,
int recurse_submodules);
/**
* Set the configuration file for this repository
*
* This configuration file will be used for all configuration
* queries involving this repository.
*
* The repository will keep a reference to the config file;
* the user must still free the config after setting it
* to the repository, or it will leak.
*
* @param repo A repository object
* @param config A Config object
* @return 0 on success, or an error code
*/
GIT_EXTERN(int) git_repository_set_config(git_repository *repo, git_config *config);
/**
* Set the Object Database for this repository
*
* The ODB will be used for all object-related operations
* involving this repository.
*
* The repository will keep a reference to the ODB; the user
* must still free the ODB object after setting it to the
* repository, or it will leak.
*
* @param repo A repository object
* @param odb An ODB object
* @return 0 on success, or an error code
*/
GIT_EXTERN(int) git_repository_set_odb(git_repository *repo, git_odb *odb);
/**
* Set the Reference Database Backend for this repository
*
* The refdb will be used for all reference related operations
* involving this repository.
*
* The repository will keep a reference to the refdb; the user
* must still free the refdb object after setting it to the
* repository, or it will leak.
*
* @param repo A repository object
* @param refdb An refdb object
* @return 0 on success, or an error code
*/
GIT_EXTERN(int) git_repository_set_refdb(git_repository *repo, git_refdb *refdb);
/**
* Set the index file for this repository
*
* This index will be used for all index-related operations
* involving this repository.
*
* The repository will keep a reference to the index file;
* the user must still free the index after setting it
* to the repository, or it will leak.
*
* @param repo A repository object
* @param index An index object
* @return 0 on success, or an error code
*/
GIT_EXTERN(int) git_repository_set_index(git_repository *repo, git_index *index);
/**
* Set a repository to be bare.
*
* Clear the working directory and set core.bare to true. You may also
* want to call `git_repository_set_index(repo, NULL)` since a bare repo
* typically does not have an index, but this function will not do that
* for you.
*
* @param repo Repo to make bare
* @return 0 on success, <0 on failure
*/
GIT_EXTERN(int) git_repository_set_bare(git_repository *repo);
/**
* Load and cache all submodules.
*
* Because the `.gitmodules` file is unstructured, loading submodules is an
* O(N) operation. Any operation (such as `git_rebase_init`) that requires
* accessing all submodules is O(N^2) in the number of submodules, if it
* has to look each one up individually. This function loads all submodules
* and caches them so that subsequent calls to `git_submodule_lookup` are O(1).
*
* @param repo the repository whose submodules will be cached.
*/
GIT_EXTERN(int) git_repository_submodule_cache_all(
git_repository *repo);
/**
* Clear the submodule cache.
*
* Clear the submodule cache populated by `git_repository_submodule_cache_all`.
* If there is no cache, do nothing.
*
* The cache incorporates data from the repository's configuration, as well
* as the state of the working tree, the index, and HEAD. So any time any
* of these has changed, the cache might become invalid.
*
* @param repo the repository whose submodule cache will be cleared
*/
GIT_EXTERN(int) git_repository_submodule_cache_clear(
git_repository *repo);
/** @} */
GIT_END_DECL
#endif
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