thodg/libgit2/src/index.h

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• Hash : 41a82592
  Author :
  Date : 2012-05-15T14:17:39
  

  Ranged iterators and rewritten git_status_file The goal of this work is to rewrite git_status_file to use the same underlying code as git_status_foreach. This is done in 3 phases: 1. Extend iterators to allow ranged iteration with start and end prefixes for the range of file names to be covered. 2. Improve diff so that when there is a pathspec and there is a common non-wildcard prefix of the pathspec, it will use ranged iterators to minimize excess iteration. 3. Rewrite git_status_file to call git_status_foreach_ext with a pathspec that covers just the one file being checked. Since ranged iterators underlie the status & diff implementation, this is actually fairly efficient. The workdir iterator does end up loading the contents of all the directories down to the single file, which should ideally be avoided, but it is pretty good.

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• src/index.h

• /*
   * Copyright (C) 2009-2012 the libgit2 contributors
   *
   * 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_index_h__
  #define INCLUDE_index_h__
  
  #include "fileops.h"
  #include "filebuf.h"
  #include "vector.h"
  #include "tree-cache.h"
  #include "git2/odb.h"
  #include "git2/index.h"
  
  #define GIT_INDEX_FILE "index"
  #define GIT_INDEX_FILE_MODE 0666
  
  struct git_index {
  	git_refcount rc;
  
  	char *index_file_path;
  
  	time_t last_modified;
  	git_vector entries;
  
  	unsigned int on_disk:1;
  	git_tree_cache *tree;
  
  	git_vector unmerged;
  };
  
  extern void git_index__init_entry_from_stat(struct stat *st, git_index_entry *entry);
  
  extern unsigned int git_index__prefix_position(git_index *index, const char *path);
  
  #endif
  

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