thodg/libgit2/include/git2/transaction.h

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• Hash : c327d5db
  Author :
  Date : 2014-10-09T16:29:30
  

  transaction: rename lock() to lock_ref() This leaves space for future expansion to locking other resources without having to change the API for references.

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• include/git2/transaction.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_transaction_h__
  #define INCLUDE_git_transaction_h__
  
  #include "common.h"
  GIT_BEGIN_DECL
  
  /**
   * Create a new transaction object
   *
   * This does not lock anything, but sets up the transaction object to
   * know from which repository to lock.
   *
   * @param out the resulting transaction
   * @param repo the repository in which to lock
   * @return 0 or an error code
   */
  GIT_EXTERN(int) git_transaction_new(git_transaction **out, git_repository *repo);
  
  /**
   * Lock a reference
   *
   * Lock the specified reference. This is the first step to updating a
   * reference.
   *
   * @param tx the transaction
   * @param refname the reference to lock
   * @return 0 or an error message
   */
  GIT_EXTERN(int) git_transaction_lock_ref(git_transaction *tx, const char *refname);
  
  /**
   * Set the target of a reference
   *
   * Set the target of the specified reference. This reference must be
   * locked.
   *
   * @param tx the transaction
   * @param refname reference to update
   * @param target target to set the reference to
   * @param sig signature to use in the reflog; pass NULL to read the identity from the config
   * @param msg message to use in the reflog
   * @return 0, GIT_ENOTFOUND if the reference is not among the locked ones, or an error code
   */
  GIT_EXTERN(int) git_transaction_set_target(git_transaction *tx, const char *refname, const git_oid *target, const git_signature *sig, const char *msg);
  
  /**
   * Set the target of a reference
   *
   * Set the target of the specified reference. This reference must be
   * locked.
   *
   * @param tx the transaction
   * @param refname reference to update
   * @param target target to set the reference to
   * @param sig signature to use in the reflog; pass NULL to read the identity from the config
   * @param msg message to use in the reflog
   * @return 0, GIT_ENOTFOUND if the reference is not among the locked ones, or an error code
   */
  GIT_EXTERN(int) git_transaction_set_symbolic_target(git_transaction *tx, const char *refname, const char *target, const git_signature *sig, const char *msg);
  
  /**
   * Set the reflog of a reference
   *
   * Set the specified reference's reflog. If this is combined with
   * setting the target, that update won't be written to the reflog.
   *
   * @param tx the transaction
   * @param refname the reference whose reflog to set
   * @param reflog the reflog as it should be written out
   * @return 0, GIT_ENOTFOUND if the reference is not among the locked ones, or an error code
   */
  GIT_EXTERN(int) git_transaction_set_reflog(git_transaction *tx, const char *refname, const git_reflog *reflog);
  
  /**
   * Remove a reference
   *
   * @param tx the transaction
   * @param refname the reference to remove
   * @return 0, GIT_ENOTFOUND if the reference is not among the locked ones, or an error code
   */
  GIT_EXTERN(int) git_transaction_remove(git_transaction *tx, const char *refname);
  
  /**
   * Commit the changes from the transaction
   *
   * Perform the changes that have been queued. The updates will be made
   * one by one, and the first failure will stop the processing.
   *
   * @param tx the transaction
   * @return 0 or an error code
   */
  GIT_EXTERN(int) git_transaction_commit(git_transaction *tx);
  
  /**
   * Free the resources allocated by this transaction
   *
   * If any references remain locked, they will be unlocked without any
   * changes made to them.
   *
   * @param tx the transaction
   */
  GIT_EXTERN(void) git_transaction_free(git_transaction *tx);
  
  GIT_END_DECL
  #endif
  

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