thodg/libgit2/src/diff_patch.h

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• Hash : 54077091
  Author :
  Date : 2015-06-24T12:06:41
  

  diff: determine DIFFABLE-ness for binaries
  
  Always set `GIT_DIFF_PATCH_DIFFABLE` for all files, regardless of
  binary-ness, so that the binary callback is invoked to either
  show the binary contents, or just print the standard "Binary files
  differ" message.  We may need to do deeper inspection for binary
  files where we have avoided loading the contents into a file map.
  

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• src/diff_patch.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 "array.h"
  #include "git2/patch.h"
  
   /* cached information about a hunk in a diff */
  typedef struct diff_patch_hunk {
  	git_diff_hunk hunk;
  	size_t line_start;
  	size_t line_count;
  } diff_patch_hunk;
  
  enum {
  	GIT_DIFF_PATCH_ALLOCATED = (1 << 0),
  	GIT_DIFF_PATCH_INITIALIZED = (1 << 1),
  	GIT_DIFF_PATCH_LOADED = (1 << 2),
  	/* the two sides are different */
  	GIT_DIFF_PATCH_DIFFABLE = (1 << 3),
  	/* the difference between the two sides has been computed */
  	GIT_DIFF_PATCH_DIFFED = (1 << 4),
  	GIT_DIFF_PATCH_FLATTENED = (1 << 5),
  };
  
  struct git_patch {
  	git_refcount rc;
  	git_diff *diff; /* for refcount purposes, maybe NULL for blob diffs */
  	git_diff_options diff_opts;
  	git_diff_delta *delta;
  	size_t delta_index;
  	git_diff_file_content ofile;
  	git_diff_file_content nfile;
  	uint32_t flags;
  	git_diff_binary binary;
  	git_array_t(diff_patch_hunk) hunks;
  	git_array_t(git_diff_line)   lines;
  	size_t content_size, context_size, header_size;
  	git_pool flattened;
  };
  
  extern git_diff *git_patch__diff(git_patch *);
  
  extern git_diff_driver *git_patch__driver(git_patch *);
  
  extern void git_patch__old_data(char **, size_t *, git_patch *);
  extern void git_patch__new_data(char **, size_t *, git_patch *);
  
  extern int git_patch__invoke_callbacks(
  	git_patch *patch,
  	git_diff_file_cb file_cb,
  	git_diff_binary_cb binary_cb,
  	git_diff_hunk_cb hunk_cb,
  	git_diff_line_cb line_cb,
  	void *payload);
  
  typedef struct git_diff_output git_diff_output;
  struct git_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_diff_output *output, git_patch *patch);
  };
  
  #endif
  

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