thodg/libgit2/src/git/revwalk.h

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• Hash : e5d1faef
  Author :
  Date : 2010-05-25T19:48:13
  

  Add external API for revision sorting. The GIT_RPSORT_XXX flags have been moved to the external API, and a new method 'gitrp_sorting(...)' has been added to safely change the sorting method of a revision pool. Signed-off-by: Vicent Marti <tanoku@gmail.com> Signed-off-by: Andreas Ericsson <ae@op5.se>

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• src/git/revwalk.h

• #ifndef INCLUDE_git_revwalk_h__
  #define INCLUDE_git_revwalk_h__
  
  #include "common.h"
  #include "odb.h"
  #include "commit.h"
  
  /**
   * @file git/revwalk.h
   * @brief Git revision traversal routines
   * @defgroup git_revwalk Git revision traversal routines
   * @ingroup Git
   * @{
   */
  GIT_BEGIN_DECL
  
  /**
   * Sort the revpool contents in no particular ordering;
   * this sorting is arbritary, implementation-specific
   * and subject to change at any time.
   * This is the default sorting for new revision pools.
   */
  #define GIT_RPSORT_NONE         (0)
  
  /**
   * Sort the revpool contents in topological order
   * (parents before children); this sorting mode
   * can be combined with time sorting.
   */
  #define GIT_RPSORT_TOPOLOGICAL  (1 << 0)
  
  /**
   * Sort the revpool contents by commit time;
   * this sorting mode can be combined with
   * topological sorting.
   */
  #define GIT_RPSORT_TIME         (1 << 1)
  
  /**
   * Iterate through the revpool contents in reverse
   * order; this sorting mode can be combined with
   * any of the above.
   */
  #define GIT_RPSORT_REVERSE      (1 << 2)
  
  /**
   * Allocate a new revision traversal pool.
   *
   * The configuration is copied during allocation.  Changes
   * to the configuration after allocation do not affect the pool
   * returned by this function.  Callers may safely free the
   * passed configuration after the function completes.
   *
   * @param db the database objects are read from.
   * @return the new traversal handle; NULL if memory is exhausted.
   */
  GIT_EXTERN(git_revpool *) gitrp_alloc(git_odb *db);
  
  /**
   * Reset the traversal machinary for reuse.
   * @param pool traversal handle to reset.
   */
  GIT_EXTERN(void) gitrp_reset(git_revpool *pool);
  
  /**
   * Mark an object to start traversal from.
   * @param pool the pool being used for the traversal.
   * @param commit the commit to start from.
   */
  GIT_EXTERN(int) gitrp_push(git_revpool *pool, git_commit *commit);
  
  /**
   * Mark a commit (and its ancestors) uninteresting for the output.
   * @param pool the pool being used for the traversal.
   * @param commit the commit that will be ignored during the traversal
   */
  GIT_EXTERN(int) gitrp_hide(git_revpool *pool, git_commit *commit);
  
  /**
   * Get the next commit from the revision traversal.
   * @param pool the pool to pop the commit from.
   * @return next commit; NULL if there is no more output.
   */
  GIT_EXTERN(git_commit *) gitrp_next(git_revpool *pool);
  
  /**
   * Change the sorting mode when iterating through the
   * revision pool's contents.
   * @param sort_mode combination of GIT_RPSORT_XXX flags
   */
  GIT_EXTERN(void) gitrp_sorting(git_revpool *pool, unsigned int sort_mode);
  
  /**
   * Free a revwalk previously allocated.
   * @param pool traversal handle to close.  If NULL nothing occurs.
   */
  GIT_EXTERN(void) gitrp_free(git_revpool *pool);
  
  /** @} */
  GIT_END_DECL
  #endif
  

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