thodg/libgit2/src/object.h

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• Hash : ca4db5f4
  Author :
  Date : 2017-10-13T13:11:35
  

  object: implement function to parse raw data Now that we have implement functions to parse all git objects from raw data, we can implement a generic function `git_object__from_raw` to create a structure of type `git_object`. This allows us to parse and interpret objects from raw data without having to touch the ODB at all, which is especially useful for object verification prior to accepting them into the repository.

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• src/object.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_object_h__
  #define INCLUDE_object_h__
  
  #include "common.h"
  
  #include "repository.h"
  
  extern bool git_object__strict_input_validation;
  
  /** Base git object for inheritance */
  struct git_object {
  	git_cached_obj cached;
  	git_repository *repo;
  };
  
  /* fully free the object; internal method, DO NOT EXPORT */
  void git_object__free(void *object);
  
  /*
   * Parse object from raw data. Note that the resulting object is
   * tied to the lifetime of the data, as some objects simply point
   * into it.
   */
  int git_object__from_raw(
  	git_object **object_out,
  	const char *data,
  	size_t size,
  	git_otype type);
  
  int git_object__from_odb_object(
  	git_object **object_out,
  	git_repository *repo,
  	git_odb_object *odb_obj,
  	git_otype type);
  
  int git_object__resolve_to_type(git_object **obj, git_otype type);
  
  git_otype git_object_stringn2type(const char *str, size_t len);
  
  int git_oid__parse(git_oid *oid, const char **buffer_out, const char *buffer_end, const char *header);
  
  void git_oid__writebuf(git_buf *buf, const char *header, const git_oid *oid);
  
  bool git_object__is_valid(
  	git_repository *repo, const git_oid *id, git_otype expected_type);
  
  GIT_INLINE(git_otype) git_object__type_from_filemode(git_filemode_t mode)
  {
  	switch (mode) {
  	case GIT_FILEMODE_TREE:
  		return GIT_OBJ_TREE;
  	case GIT_FILEMODE_COMMIT:
  		return GIT_OBJ_COMMIT;
  	case GIT_FILEMODE_BLOB:
  	case GIT_FILEMODE_BLOB_EXECUTABLE:
  	case GIT_FILEMODE_LINK:
  		return GIT_OBJ_BLOB;
  	default:
  		return GIT_OBJ_BAD;
  	}
  }
  
  #endif
  

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