thodg/libgit2/src/attrcache.h

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• Hash : 9f779aac
  Author :
  Date : 2015-01-29T14:40:55
  

  attrcache: don't re-read attrs during checkout During checkout, assume that the .gitattributes files aren't modified during the checkout. Instead, create an "attribute session" during checkout. Assume that attribute data read in the same checkout "session" hasn't been modified since the checkout started. (But allow subsequent checkouts to invalidate the cache.) Further, cache nonexistent git_attr_file data even when .gitattributes files are not found to prevent re-scanning for nonexistent files.

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• src/attrcache.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_attrcache_h__
  #define INCLUDE_attrcache_h__
  
  #include "attr_file.h"
  #include "strmap.h"
  
  #define GIT_ATTR_CONFIG       "core.attributesfile"
  #define GIT_IGNORE_CONFIG     "core.excludesfile"
  
  typedef struct {
  	char *cfg_attr_file; /* cached value of core.attributesfile */
  	char *cfg_excl_file; /* cached value of core.excludesfile */
  	git_strmap *files;	 /* hash path to git_attr_cache_entry records */
  	git_strmap *macros;	 /* hash name to vector<git_attr_assignment> */
  	git_mutex lock;
  	git_pool  pool;
  } git_attr_cache;
  
  extern int git_attr_cache__do_init(git_repository *repo);
  
  #define git_attr_cache__init(REPO) \
  	(git_repository_attr_cache(REPO) ? 0 : git_attr_cache__do_init(REPO))
  
  /* get file - loading and reload as needed */
  extern int git_attr_cache__get(
  	git_attr_file **file,
  	git_repository *repo,
  	git_attr_session *attr_session,
  	git_attr_file_source source,
  	const char *base,
  	const char *filename,
  	git_attr_file_parser parser);
  
  extern bool git_attr_cache__is_cached(
  	git_repository *repo,
  	git_attr_file_source source,
  	const char *path);
  
  extern int git_attr_cache__alloc_file_entry(
  	git_attr_file_entry **out,
  	const char *base,
  	const char *path,
  	git_pool *pool);
  
  extern int git_attr_cache__insert_macro(
  	git_repository *repo, git_attr_rule *macro);
  
  extern git_attr_rule *git_attr_cache__lookup_macro(
  	git_repository *repo, const char *name);
  
  #endif
  

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