/*
* Copyright (C) 2009-2011 the libgit2 contributors
*
* 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_repository_h__
#define INCLUDE_git_repository_h__
#include "common.h"
#include "types.h"
#include "oid.h"
/**
* @file git2/repository.h
* @brief Git repository management routines
* @defgroup git_repository Git repository management routines
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/**
* Open a git repository.
*
* The 'path' argument must point to either a git repository
* folder, or an existing work dir.
*
* The method will automatically detect if 'path' is a normal
* or bare repository or fail is 'path' is neither.
*
* @param repository pointer to the repo which will be opened
* @param path the path to the repository
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_repository_open(git_repository **repository, const char *path);
/**
* Look for a git repository and copy its path in the given buffer.
* The lookup start from base_path and walk across parent directories
* if nothing has been found. The lookup ends when the first repository
* is found, or when reaching a directory referenced in ceiling_dirs
* or when the filesystem changes (in case across_fs is true).
*
* The method will automatically detect if the repository is bare
* (if there is a repository).
*
* @param repository_path The user allocated buffer which will
* contain the found path.
*
* @param size repository_path size
*
* @param start_path The base path where the lookup starts.
*
* @param across_fs If true, then the lookup will not stop when a
* filesystem device change is detected while exploring parent directories.
*
* @param ceiling_dirs A GIT_PATH_LIST_SEPARATOR separated list of
* absolute symbolic link free paths. The lookup will stop when any
* of this paths is reached. Note that the lookup always performs on
* start_path no matter start_path appears in ceiling_dirs ceiling_dirs
* might be NULL (which is equivalent to an empty string)
*
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_repository_discover(
char *repository_path,
size_t size,
const char *start_path,
int across_fs,
const char *ceiling_dirs);
/**
* Free a previously allocated repository
*
* Note that after a repository is free'd, all the objects it has spawned
* will still exist until they are manually closed by the user
* with `git_object_free`, but accessing any of the attributes of
* an object without a backing repository will result in undefined
* behavior
*
* @param repo repository handle to close. If NULL nothing occurs.
*/
GIT_EXTERN(void) git_repository_free(git_repository *repo);
/**
* Creates a new Git repository in the given folder.
*
* TODO:
* - Reinit the repository
*
* @param repo_out pointer to the repo which will be created or reinitialized
* @param path the path to the repository
* @param is_bare if true, a Git repository without a working directory is created
* at the pointed path. If false, provided path will be considered as the working
* directory into which the .git directory will be created.
*
* @return GIT_SUCCESS or an error code
*/
GIT_EXTERN(int) git_repository_init(git_repository **repo_out, const char *path, unsigned is_bare);
/**
* Retrieve and resolve the reference pointed at by HEAD.
*
* @param head_out pointer to the reference which will be retrieved
* @param repo a repository object
*
* @return 0 on success; error code otherwise
*/
GIT_EXTERN(int) git_repository_head(git_reference **head_out, git_repository *repo);
/**
* Check if a repository's HEAD is detached
*
* A repository's HEAD is detached when it points directly to a commit
* instead of a branch.
*
* @param repo Repo to test
* @return 1 if HEAD is detached, 0 if i'ts not; error code if there
* was an error.
*/
GIT_EXTERN(int) git_repository_head_detached(git_repository *repo);
/**
* Check if the current branch is an orphan
*
* An orphan branch is one named from HEAD but which doesn't exist in
* the refs namespace, because it doesn't have any commit to point to.
*
* @param repo Repo to test
* @return 1 if the current branch is an orphan, 0 if it's not; error
* code if therewas an error
*/
GIT_EXTERN(int) git_repository_head_orphan(git_repository *repo);
/**
* Check if a repository is empty
*
* An empty repository has just been initialized and contains
* no commits.
*
* @param repo Repo to test
* @return 1 if the repository is empty, 0 if it isn't, error code
* if the repository is corrupted
*/
GIT_EXTERN(int) git_repository_is_empty(git_repository *repo);
/**
* Get the path of this repository
*
* This is the path of the `.git` folder for normal repositories,
* or of the repository itself for bare repositories.
*
* @param repo A repository object
* @return the path to the repository
*/
GIT_EXTERN(const char *) git_repository_path(git_repository *repo);
/**
* Get the path of the working directory for this repository
*
* If the repository is bare, this function will always return
* NULL.
*
* @param repo A repository object
* @return the path to the working dir, if it exists
*/
GIT_EXTERN(const char *) git_repository_workdir(git_repository *repo);
/**
* Set the path to the working directory for this repository
*
* The working directory doesn't need to be the same one
* that contains the `.git` folder for this repository.
*
* If this repository is bare, setting its working directory
* will turn it into a normal repository, capable of performing
* all the common workdir operations (checkout, status, index
* manipulation, etc).
*
* @param repo A repository object
* @param workdir The path to a working directory
* @return GIT_SUCCESS, or an error code
*/
GIT_EXTERN(int) git_repository_set_workdir(git_repository *repo, const char *workdir);
/**
* Check if a repository is bare
*
* @param repo Repo to test
* @return 1 if the repository is bare, 0 otherwise.
*/
GIT_EXTERN(int) git_repository_is_bare(git_repository *repo);
/**
* Get the configuration file for this repository.
*
* If a configuration file has not been set, the default
* config set for the repository will be returned, including
* global and system configurations (if they are available).
*
* The configuration file must be freed once it's no longer
* being used by the user.
*
* @param out Pointer to store the loaded config file
* @param repo A repository object
* @return GIT_SUCCESS, or an error code
*/
GIT_EXTERN(int) git_repository_config(git_config **out, git_repository *repo);
/**
* 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
*/
GIT_EXTERN(void) git_repository_set_config(git_repository *repo, git_config *config);
/**
* Get the Object Database for this repository.
*
* If a custom ODB has not been set, the default
* database for the repository will be returned (the one
* located in `.git/objects`).
*
* The ODB must be freed once it's no longer being used by
* the user.
*
* @param out Pointer to store the loaded ODB
* @param repo A repository object
* @return GIT_SUCCESS, or an error code
*/
GIT_EXTERN(int) git_repository_odb(git_odb **out, git_repository *repo);
/**
* 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
*/
GIT_EXTERN(void) git_repository_set_odb(git_repository *repo, git_odb *odb);
/**
* Get the Index file for this repository.
*
* If a custom index has not been set, the default
* index for the repository will be returned (the one
* located in `.git/index`).
*
* The index must be freed once it's no longer being used by
* the user.
*
* @param out Pointer to store the loaded index
* @param repo A repository object
* @return GIT_SUCCESS, or an error code
*/
GIT_EXTERN(int) git_repository_index(git_index **out, git_repository *repo);
/**
* 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
*/
GIT_EXTERN(void) git_repository_set_index(git_repository *repo, git_index *index);
/** @} */
GIT_END_DECL
#endif
