src/patch_generate.h

   1 /*
   2  * Copyright (C) the libgit2 contributors. All rights reserved.
   3  *
   4  * This file is part of libgit2, distributed under the GNU GPL v2 with
   5  * a Linking Exception. For full terms see the included COPYING file.
   6  */
   7 #ifndef INCLUDE_patch_generate_h__
   8 #define INCLUDE_patch_generate_h__
   9
  10 #include "common.h"
  11
  12 #include "diff.h"
  13 #include "diff_file.h"
  14 #include "patch.h"
  15
  16 enum {
  17         GIT_PATCH_GENERATED_ALLOCATED = (1 << 0),
  18         GIT_PATCH_GENERATED_INITIALIZED = (1 << 1),
  19         GIT_PATCH_GENERATED_LOADED = (1 << 2),
  20         /* the two sides are different */
  21         GIT_PATCH_GENERATED_DIFFABLE = (1 << 3),
  22         /* the difference between the two sides has been computed */
  23         GIT_PATCH_GENERATED_DIFFED = (1 << 4),
  24         GIT_PATCH_GENERATED_FLATTENED = (1 << 5),
  25 };
  26
  27 struct git_patch_generated {
  28         struct git_patch base;
  29
  30         git_diff *diff; /* for refcount purposes, maybe NULL for blob diffs */
  31         size_t delta_index;
  32         git_diff_file_content ofile;
  33         git_diff_file_content nfile;
  34         uint32_t flags;
  35         git_pool flattened;
  36 };
  37
  38 typedef struct git_patch_generated git_patch_generated;
  39
  40 extern git_diff_driver *git_patch_generated_driver(git_patch_generated *);
  41
  42 extern void git_patch_generated_old_data(
  43         char **, size_t *, git_patch_generated *);
  44 extern void git_patch_generated_new_data(
  45         char **, size_t *, git_patch_generated *);
  46 extern int git_patch_generated_from_diff(
  47         git_patch **, git_diff *, size_t);
  48
  49 typedef struct git_patch_generated_output git_patch_generated_output;
  50
  51 struct git_patch_generated_output {
  52         /* these callbacks are issued with the diff data */
  53         git_diff_file_cb file_cb;
  54         git_diff_binary_cb binary_cb;
  55         git_diff_hunk_cb hunk_cb;
  56         git_diff_line_cb data_cb;
  57         void *payload;
  58
  59         /* this records the actual error in cases where it may be obscured */
  60         int error;
  61
  62         /* this callback is used to do the diff and drive the other callbacks.
  63          * see diff_xdiff.h for how to use this in practice for now.
  64          */
  65         int (*diff_cb)(git_patch_generated_output *output,
  66                 git_patch_generated *patch);
  67 };
  68
  69 #endif