thodg/libgit2/src/git2/refs.h

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• Hash : fc70832a
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  Date : 2011-02-23T07:08:50
  

  include "oid.h" in headers that use git_oid This makes generating bindings to hlibgit2 easier

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• src/git2/refs.h

• /*
   * This file is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License, version 2,
   * as published by the Free Software Foundation.
   *
   * In addition to the permissions in the GNU General Public License,
   * the authors give you unlimited permission to link the compiled
   * version of this file into combinations with other programs,
   * and to distribute those combinations without any restriction
   * coming from the use of this file.  (The General Public License
   * restrictions do apply in other respects; for example, they cover
   * modification of the file, and distribution when not linked into
   * a combined executable.)
   *
   * This file is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; see the file COPYING.  If not, write to
   * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
   * Boston, MA 02110-1301, USA.
   */
  #ifndef INCLUDE_git_refs_h__
  #define INCLUDE_git_refs_h__
  
  #include "common.h"
  #include "types.h"
  #include "oid.h"
  
  /**
   * @file git2/refs.h
   * @brief Git reference management routines
   * @defgroup git_reference Git reference management routines
   * @ingroup Git
   * @{
   */
  GIT_BEGIN_DECL
  
  /**
   * Create a new reference.
   *
   * The reference will be empty and exclusively
   * in-memory until it is filled with the setter
   * methods and written back to disk using
   * `git_reference_write`.
   *
   * @param ref_out Pointer to the newly created reference
   * @param repo Repository where that reference exists
   * @return 0 on success; error code otherwise
   */
  GIT_EXTERN(int) git_reference_new(git_reference **ref_out, git_repository *repo);
  
  /**
   * Get the OID pointed to by a reference.
   * 
   * Only available if the reference is direct (i.e. not symbolic)
   *
   * @param ref The reference
   * @return a pointer to the oid if available, NULL otherwise
   */
  GIT_EXTERN(const git_oid *) git_reference_oid(git_reference *ref);
  
  /**
   * Get full name to the reference pointed by this reference
   * 
   * Only available if the reference is symbolic
   *
   * @param ref The reference
   * @return a pointer to the name if available, NULL otherwise
   */
  GIT_EXTERN(const char *) git_reference_target(git_reference *ref);
  
  /**
   * Get the type of a reference
   *
   * Either direct (GIT_REF_OID) or symbolic (GIT_REF_SYMBOLIC)
   *
   * @param ref The reference
   * @return the type
   */
  GIT_EXTERN(git_rtype) git_reference_type(git_reference *ref);
  
  /**
   * Get the full name of a reference
   *
   * @param ref The reference
   * @return the full name for the ref
   */
  GIT_EXTERN(const char *) git_reference_name(git_reference *ref);
  
  /**
   * Resolve a symbolic reference 
   *
   * Thie method iteratively peels a symbolic reference
   * until it resolves to a direct reference to an OID.
   *
   * If a direct reference is passed as an argument,
   * that reference is returned immediately
   *
   * @param resolved_ref Pointer to the peeled reference
   * @param ref The reference
   * @return 0 on success; error code otherwise
   */
  GIT_EXTERN(int) git_reference_resolve(git_reference **resolved_ref, git_reference *ref);
  
  /**
   * Write a reference back to disk.
   *
   * The reference must have a valid name and a valid target
   * (either direct or symbolic).
   *
   * If the reference has been loaded from disk and no changes
   * have been made, no action will take place.
   *
   * The writing to disk is atomic.
   *
   * @param ref The reference
   * @return 0 on success; error code otherwise
   */
  GIT_EXTERN(int) git_reference_write(git_reference *ref);
  
  /**
   * Get the repository where a reference resides
   *
   * @param ref The reference
   * @return a pointer to the repo
   */
  GIT_EXTERN(git_repository *) git_reference_owner(git_reference *ref);
  
  /**
   * Set the name of a reference.
   *
   * This marks the reference as modified; changes
   * won't take effect until it is manually written back
   * to disk.
   *
   * @param ref The reference
   * @param name The new name for the reference
   */
  GIT_EXTERN(void) git_reference_set_name(git_reference *ref, const char *name);
  
  /**
   * Set the target reference of a reference.
   *
   * This converts the reference into a symbolic
   * reference.
   *
   * This marks the reference as modified; changes
   * won't take effect until it is manually written back
   * to disk.
   *
   * @param ref The reference
   * @param target The new target for the reference
   */
  GIT_EXTERN(void) git_reference_set_target(git_reference *ref, const char *target);
  
  /**
   * Set the OID target of a reference.
   *
   * This converts the reference into a direct
   * reference.
   *
   * This marks the reference as modified; changes
   * won't take effect until it is manually written back
   * to disk.
   *
   * @param ref The reference
   * @param target The new target OID for the reference
   */
  GIT_EXTERN(void) git_reference_set_oid(git_reference *ref, const git_oid *id);
  
  /** @} */
  GIT_END_DECL
  #endif
  

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