thodg/libgit2/src/diff_file.h

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• Hash : 0c7f49dd
  Author :
  Date : 2017-06-30T13:39:01
  

  Make sure to always include "common.h" first Next to including several files, our "common.h" header also declares various macros which are then used throughout the project. As such, we have to make sure to always include this file first in all implementation files. Otherwise, we might encounter problems or even silent behavioural differences due to macros or defines not being defined as they should be. So in fact, our header and implementation files should make sure to always include "common.h" first. This commit does so by establishing a common include pattern. Header files inside of "src" will now always include "common.h" as its first other file, separated by a newline from all the other includes to make it stand out as special. There are two cases for the implementation files. If they do have a matching header file, they will always include this one first, leading to "common.h" being transitively included as first file. If they do not have a matching header file, they instead include "common.h" as first file themselves. This fixes the outlined problems and will become our standard practice for header and source files inside of the "src/" from now on.

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• src/diff_file.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_file_h__
  #define INCLUDE_diff_file_h__
  
  #include "common.h"
  
  #include "diff.h"
  #include "diff_driver.h"
  #include "map.h"
  
  /* expanded information for one side of a delta */
  typedef struct {
  	git_repository *repo;
  	git_diff_file *file;
  	git_diff_driver *driver;
  	uint32_t flags;
  	uint32_t opts_flags;
  	git_off_t opts_max_size;
  	git_iterator_type_t src;
  	const git_blob *blob;
  	git_map map;
  } git_diff_file_content;
  
  extern int git_diff_file_content__init_from_diff(
  	git_diff_file_content *fc,
  	git_diff *diff,
  	git_diff_delta *delta,
  	bool use_old);
  
  typedef struct {
  	const git_blob *blob;
  	const void *buf;
  	size_t buflen;
  	const char *as_path;
  } git_diff_file_content_src;
  
  #define GIT_DIFF_FILE_CONTENT_SRC__BLOB(BLOB,PATH) { (BLOB),NULL,0,(PATH) }
  #define GIT_DIFF_FILE_CONTENT_SRC__BUF(BUF,LEN,PATH) { NULL,(BUF),(LEN),(PATH) }
  
  extern int git_diff_file_content__init_from_src(
  	git_diff_file_content *fc,
  	git_repository *repo,
  	const git_diff_options *opts,
  	const git_diff_file_content_src *src,
  	git_diff_file *as_file);
  
  /* this loads the blob/file-on-disk as needed */
  extern int git_diff_file_content__load(
  	git_diff_file_content *fc,
  	git_diff_options *diff_opts);
  
  /* this releases the blob/file-in-memory */
  extern void git_diff_file_content__unload(git_diff_file_content *fc);
  
  /* this unloads and also releases any other resources */
  extern void git_diff_file_content__clear(git_diff_file_content *fc);
  
  #endif
  

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