Hash :
f5918330
Author :
Date :
2010-12-06T23:08:31
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/*
* 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_revwalk_h__
#define INCLUDE_git_revwalk_h__
#include "common.h"
#include "types.h"
/**
* @file git2/revwalk.h
* @brief Git revision traversal routines
* @defgroup git_revwalk Git revision traversal routines
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/**
* Sort the repository contents in no particular ordering;
* this sorting is arbitrary, implementation-specific
* and subject to change at any time.
* This is the default sorting for new walkers.
*/
#define GIT_SORT_NONE (0)
/**
* Sort the repository contents in topological order
* (parents before children); this sorting mode
* can be combined with time sorting.
*/
#define GIT_SORT_TOPOLOGICAL (1 << 0)
/**
* Sort the repository contents by commit time;
* this sorting mode can be combined with
* topological sorting.
*/
#define GIT_SORT_TIME (1 << 1)
/**
* Iterate through the repository contents in reverse
* order; this sorting mode can be combined with
* any of the above.
*/
#define GIT_SORT_REVERSE (1 << 2)
/**
* Allocate a new revision walker to iterate through a repo.
*
* @param walker pointer to the new revision walker
* @param repo the repo to walk through
* @return 0 on success; error code otherwise
*/
GIT_EXTERN(int) git_revwalk_new(git_revwalk **walker, git_repository *repo);
/**
* Reset the walking machinery for reuse.
* @param walker handle to reset.
*/
GIT_EXTERN(void) git_revwalk_reset(git_revwalk *walker);
/**
* Mark a commit to start traversal from.
* The commit object must belong to the repo which is being walked through.
*
* @param walker the walker being used for the traversal.
* @param commit the commit to start from.
*/
GIT_EXTERN(int) git_revwalk_push(git_revwalk *walk, git_commit *commit);
/**
* Mark a commit (and its ancestors) uninteresting for the output.
* @param walker the walker being used for the traversal.
* @param commit the commit that will be ignored during the traversal
*/
GIT_EXTERN(int) git_revwalk_hide(git_revwalk *walk, git_commit *commit);
/**
* Get the next commit from the revision traversal.
* @param walk the walker to pop the commit from.
* @return next commit; NULL if there is no more output.
*/
GIT_EXTERN(git_commit *) git_revwalk_next(git_revwalk *walk);
/**
* Change the sorting mode when iterating through the
* repository's contents.
* Changing the sorting mode resets the walker.
* @param walk the walker being used for the traversal.
* @param sort_mode combination of GIT_RPSORT_XXX flags
*/
GIT_EXTERN(int) git_revwalk_sorting(git_revwalk *walk, unsigned int sort_mode);
/**
* Free a revwalk previously allocated.
* @param walk traversal handle to close. If NULL nothing occurs.
*/
GIT_EXTERN(void) git_revwalk_free(git_revwalk *walk);
/**
* Return the repository on which this walker
* is operating.
*
* @param walk the revision walker
* @return the repository being walked
*/
GIT_EXTERN(git_repository *) git_revwalk_repository(git_revwalk *walk);
/** @} */
GIT_END_DECL
#endif