thodg/libgit2/src/odb.c

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• Hash : dff79e27
  Author :
  Date : 2008-11-18T00:59:36
  

  Rename "git_sobj" "git_obj" The 's' never really made sense, since it's not a "small" object at all, but rather a plain object. As such, it should have a "plain" object name. Signed-off-by: Andreas Ericsson <ae@op5.se> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

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• src/odb.c

• /*
   * This file is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License, version 2,
   * as published by the Free Software Foundation.
   *
   * In addition to the permissions in the GNU General Public License,
   * the authors give you unlimited permission to link the compiled
   * version of this file into combinations with other programs,
   * and to distribute those combinations without any restriction
   * coming from the use of this file.  (The General Public License
   * restrictions do apply in other respects; for example, they cover
   * modification of the file, and distribution when not linked into
   * a combined executable.)
   *
   * This file is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; see the file COPYING.  If not, write to
   * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
   * Boston, MA 02110-1301, USA.
   */
  
  #include "git/odb.h"
  
  struct git_odb {
  	/** Path to the "objects" directory. */
  	char *path;
  
  	/** Alternate databases to search. */
  	git_odb **alternates;
  };
  
  static int open_alternates(git_odb *db)
  {
  	unsigned n = 0;
  
  	db->alternates = malloc(sizeof(*db->alternates) * (n + 1));
  	if (!db->alternates)
  		return GIT_ERROR;
  
  	db->alternates[n] = NULL;
  	return GIT_SUCCESS;
  }
  
  int git_odb_open(git_odb **out, const char *objects_dir)
  {
  	git_odb *db = malloc(sizeof(*db));
  	if (!db)
  		return GIT_ERROR;
  
  	db->path = strdup(objects_dir);
  	if (!db->path) {
  		free(db);
  		return GIT_ERROR;
  	}
  
  	db->alternates = NULL;
  
  	*out = db;
  	return GIT_SUCCESS;
  }
  
  void git_odb_close(git_odb *db)
  {
  	if (!db)
  		return;
  
  	if (db->alternates) {
  		git_odb **alt;
  		for (alt = db->alternates; *alt; alt++)
  			git_odb_close(*alt);
  		free(db->alternates);
  	}
  
  	free(db->path);
  	free(db);
  }
  
  int git_odb_read(
  	git_obj *out,
  	git_odb *db,
  	const git_oid *id)
  {
  attempt:
  	if (!git_odb__read_packed(out, db, id))
  		return GIT_SUCCESS;
  	if (!git_odb__read_loose(out, db, id))
  		return GIT_SUCCESS;
  	if (!db->alternates && !open_alternates(db))
  		goto attempt;
  
  	out->data = NULL;
  	return GIT_ENOTFOUND;
  }
  

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