thodg/libgit2/src/patch_diff.h

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• Hash : 804d5fe9
  Author :
  Date : 2015-09-11T08:37:12
  

  patch: abstract patches into diff'ed and parsed Patches can now come from a variety of sources - either internally generated (from diffing two commits) or as the results of parsing some external data.

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• src/patch_diff.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_diff_patch_h__
  #define INCLUDE_diff_patch_h__
  
  #include "common.h"
  #include "diff.h"
  #include "diff_file.h"
  #include "patch.h"
  
  enum {
  	GIT_PATCH_DIFF_ALLOCATED = (1 << 0),
  	GIT_PATCH_DIFF_INITIALIZED = (1 << 1),
  	GIT_PATCH_DIFF_LOADED = (1 << 2),
  	/* the two sides are different */
  	GIT_PATCH_DIFF_DIFFABLE = (1 << 3),
  	/* the difference between the two sides has been computed */
  	GIT_PATCH_DIFF_DIFFED = (1 << 4),
  	GIT_PATCH_DIFF_FLATTENED = (1 << 5),
  };
  
  struct git_patch_diff {
  	struct git_patch base;
  
  	git_diff *diff; /* for refcount purposes, maybe NULL for blob diffs */
  	size_t delta_index;
  	git_diff_file_content ofile;
  	git_diff_file_content nfile;
  	uint32_t flags;
  	git_pool flattened;
  };
  
  typedef struct git_patch_diff git_patch_diff;
  
  extern git_diff_driver *git_patch_diff_driver(git_patch_diff *);
  
  extern void git_patch_diff_old_data(char **, size_t *, git_patch_diff *);
  extern void git_patch_diff_new_data(char **, size_t *, git_patch_diff *);
  
  typedef struct git_patch_diff_output git_patch_diff_output;
  
  struct git_patch_diff_output {
  	/* these callbacks are issued with the diff data */
  	git_diff_file_cb file_cb;
  	git_diff_binary_cb binary_cb;
  	git_diff_hunk_cb hunk_cb;
  	git_diff_line_cb data_cb;
  	void *payload;
  
  	/* this records the actual error in cases where it may be obscured */
  	int error;
  
  	/* this callback is used to do the diff and drive the other callbacks.
  	 * see diff_xdiff.h for how to use this in practice for now.
  	 */
  	int (*diff_cb)(git_patch_diff_output *output, git_patch_diff *patch);
  };
  
  #endif
  

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