thodg/libgit2/src/repository.h

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• Hash : f2c25d18
  Author :
  Date : 2012-03-02T20:08:00
  

  config: Implement a proper cvar cache

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• src/repository.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_repository_h__
  #define INCLUDE_repository_h__
  
  #include "git2/common.h"
  #include "git2/oid.h"
  #include "git2/odb.h"
  #include "git2/repository.h"
  #include "git2/object.h"
  
  #include "hashtable.h"
  #include "index.h"
  #include "cache.h"
  #include "refs.h"
  #include "buffer.h"
  #include "odb.h"
  #include "attr.h"
  
  #define DOT_GIT ".git"
  #define GIT_DIR DOT_GIT "/"
  #define GIT_DIR_MODE 0755
  #define GIT_BARE_DIR_MODE 0777
  
  /** Cvar cache identifiers */
  typedef enum {
  	GIT_CVAR_AUTO_CRLF = 0, /* core.autocrlf */
  	GIT_CVAR_EOL, /* core.eol */
  	GIT_CVAR_CACHE_MAX
  } git_cvar_cached;
  
  /**
   * CVAR value enumerations
   *
   * These are the values that are actually stored in the cvar cache, instead
   * of their string equivalents. These values are internal and symbolic;
   * make sure that none of them is set to `-1`, since that is the unique
   * identifier for "not cached"
   */
  typedef enum {
  	/* The value hasn't been loaded from the cache yet */
  	GIT_CVAR_NOT_CACHED = -1,
  
  	/* core.safecrlf: false, 'fail', 'warn' */
  	GIT_SAFE_CRLF_FALSE = 0,
  	GIT_SAFE_CRLF_FAIL = 1,
  	GIT_SAFE_CRLF_WARN = 2,
  
  	/* core.autocrlf: false, true, 'input; */
  	GIT_AUTO_CRLF_FALSE = 0,
  	GIT_AUTO_CRLF_TRUE = 1,
  	GIT_AUTO_CRLF_INPUT = 2,
  	GIT_AUTO_CRLF_DEFAULT = GIT_AUTO_CRLF_FALSE,
  
  	/* core.eol: unset, 'crlf', 'lf', 'native' */
  	GIT_EOL_UNSET = 0,
  	GIT_EOL_CRLF = 1,
  	GIT_EOL_LF = 2,
  #ifdef GIT_WIN32
  	GIT_EOL_NATIVE = GIT_EOL_CRLF,
  #else
  	GIT_EOL_NATIVE = GIT_EOL_LF,
  #endif
  	GIT_EOL_DEFAULT = GIT_EOL_NATIVE
  } git_cvar_value;
  
  /** Base git object for inheritance */
  struct git_object {
  	git_cached_obj cached;
  	git_repository *repo;
  	git_otype type;
  };
  
  struct git_repository {
  	git_odb *_odb;
  	git_config *_config;
  	git_index *_index;
  
  	git_cache objects;
  	git_refcache references;
  	git_attr_cache attrcache;
  
  	char *path_repository;
  	char *workdir;
  
  	unsigned is_bare:1;
  	unsigned int lru_counter;
  
  	git_cvar_value cvar_cache[GIT_CVAR_CACHE_MAX];
  };
  
  /* fully free the object; internal method, do not
   * export */
  void git_object__free(void *object);
  
  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);
  
  /*
   * Weak pointers to repository internals.
   *
   * The returned pointers do not need to be freed. Do not keep
   * permanent references to these (i.e. between API calls), since they may
   * become invalidated if the user replaces a repository internal.
   */
  int git_repository_config__weakptr(git_config **out, git_repository *repo);
  int git_repository_odb__weakptr(git_odb **out, git_repository *repo);
  int git_repository_index__weakptr(git_index **out, git_repository *repo);
  
  /*
   * CVAR cache 
   *
   * Efficient access to the most used config variables of a repository.
   * The cache is cleared everytime the config backend is replaced.
   */
  int git_repository__cvar(int *out, git_repository *repo, git_cvar_cached cvar);
  void git_repository__cvar_cache_clear(git_repository *repo);
  
  #endif
  

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