git/repository.h

#ifndef REPOSITORY_H
#define REPOSITORY_H

#include "strmap.h"
#include "repo-settings.h"

struct config_set;
struct git_hash_algo;
struct index_state;
struct lock_file;
struct pathspec;
struct raw_object_store;
struct submodule_cache;
struct promisor_remote_config;
struct remote_state;

enum ref_storage_format { … };

struct repo_path_cache { … };

struct repository { … };

#ifdef USE_THE_REPOSITORY_VARIABLE
extern struct repository *the_repository;
#endif

const char *repo_get_git_dir(struct repository *repo);
const char *repo_get_common_dir(struct repository *repo);
const char *repo_get_object_directory(struct repository *repo);
const char *repo_get_index_file(struct repository *repo);
const char *repo_get_graft_file(struct repository *repo);
const char *repo_get_work_tree(struct repository *repo);

/*
 * Define a custom repository layout. Any field can be NULL, which
 * will default back to the path according to the default layout.
 */
struct set_gitdir_args { … };

void repo_set_gitdir(struct repository *repo, const char *root,
		     const struct set_gitdir_args *extra_args);
void repo_set_worktree(struct repository *repo, const char *path);
void repo_set_hash_algo(struct repository *repo, int algo);
void repo_set_compat_hash_algo(struct repository *repo, int compat_algo);
void repo_set_ref_storage_format(struct repository *repo,
				 enum ref_storage_format format);
void initialize_repository(struct repository *repo);
RESULT_MUST_BE_USED
int repo_init(struct repository *r, const char *gitdir, const char *worktree);

/*
 * Initialize the repository 'subrepo' as the submodule at the given path. If
 * the submodule's gitdir cannot be found at <path>/.git, this function calls
 * submodule_from_path() to try to find it. treeish_name is only used if
 * submodule_from_path() needs to be called; see its documentation for more
 * information.
 * Return 0 upon success and a non-zero value upon failure.
 */
struct object_id;
RESULT_MUST_BE_USED
int repo_submodule_init(struct repository *subrepo,
			struct repository *superproject,
			const char *path,
			const struct object_id *treeish_name);
void repo_clear(struct repository *repo);

/*
 * Populates the repository's index from its index_file, an index struct will
 * be allocated if needed.
 *
 * Return the number of index entries in the populated index or a value less
 * than zero if an error occurred.  If the repository's index has already been
 * populated then the number of entries will simply be returned.
 */
int repo_read_index(struct repository *repo);
int repo_hold_locked_index(struct repository *repo,
			   struct lock_file *lf,
			   int flags);

int repo_read_index_unmerged(struct repository *);
/*
 * Opportunistically update the index but do not complain if we can't.
 * The lockfile is always committed or rolled back.
 */
void repo_update_index_if_able(struct repository *, struct lock_file *);

/*
 * Return 1 if upgrade repository format to target_version succeeded,
 * 0 if no upgrade is necessary, and -1 when upgrade is not possible.
 */
int upgrade_repository_format(int target_version);

#endif /* REPOSITORY_H */