thodg/libgit2/include/git2/refdb.h

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• Hash : 3be933b1
  Author :
  Date : 2013-04-17T17:33:51
  

  refs: Add `git_referene_target_peel`

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• include/git2/refdb.h

• /*
   * 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_refdb_h__
  #define INCLUDE_git_refdb_h__
  
  #include "common.h"
  #include "types.h"
  #include "oid.h"
  #include "refs.h"
  
  /**
   * @file git2/refdb.h
   * @brief Git custom refs backend functions
   * @defgroup git_refdb Git custom refs backend API
   * @ingroup Git
   * @{
   */
  GIT_BEGIN_DECL
  
  /**
   * Create a new reference.  Either an oid or a symbolic target must be
   * specified.
   *
   * @param refdb the reference database to associate with this reference
   * @param name the reference name
   * @param oid the object id for a direct reference
   * @param symbolic the target for a symbolic reference
   * @return the created git_reference or NULL on error
   */
  GIT_EXTERN(git_reference *) git_reference__alloc(
  	git_refdb *refdb,
  	const char *name,
  	const git_oid *oid,
  	const git_oid *peel);
  
  GIT_EXTERN(git_reference *) git_reference__alloc_symbolic(
  	git_refdb *refdb,
  	const char *name,
  	const char *target);
  
  /**
   * Create a new reference database with no backends.
   *
   * Before the Ref DB can be used for read/writing, a custom database
   * backend must be manually set using `git_refdb_set_backend()`
   *
   * @param out location to store the database pointer, if opened.
   *			Set to NULL if the open failed.
   * @param repo the repository
   * @return 0 or an error code
   */
  GIT_EXTERN(int) git_refdb_new(git_refdb **out, git_repository *repo);
  
  /**
   * Create a new reference database and automatically add
   * the default backends:
   *
   *  - git_refdb_dir: read and write loose and packed refs
   *      from disk, assuming the repository dir as the folder
   *
   * @param out location to store the database pointer, if opened.
   *			Set to NULL if the open failed.
   * @param repo the repository
   * @return 0 or an error code
   */
  GIT_EXTERN(int) git_refdb_open(git_refdb **out, git_repository *repo);
  
  /**
   * Suggests that the given refdb compress or optimize its references.
   * This mechanism is implementation specific.  For on-disk reference
   * databases, for example, this may pack all loose references.
   */
  GIT_EXTERN(int) git_refdb_compress(git_refdb *refdb);
  
  /**
   * Close an open reference database.
   *
   * @param refdb reference database pointer or NULL
   */
  GIT_EXTERN(void) git_refdb_free(git_refdb *refdb);
  
  /**
   * Sets the custom backend to an existing reference DB
   *
   * Read <refdb_backends.h> for more information.
   *
   * @param refdb database to add the backend to
   * @param backend pointer to a git_refdb_backend instance
   * @param priority Value for ordering the backends queue
   * @return 0 on success; error code otherwise
   */
  GIT_EXTERN(int) git_refdb_set_backend(
  	git_refdb *refdb,
  	git_refdb_backend *backend);
  
  /** @} */
  GIT_END_DECL
  
  #endif
  

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