src/odb.c

   1 /*
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or
   5  * without modification, are permitted provided that the following
   6  * conditions are met:
   7  *
   8  * - Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  *
  11  * - Redistributions in binary form must reproduce the above
  12  *   copyright notice, this list of conditions and the following
  13  *   disclaimer in the documentation and/or other materials provided
  14  *   with the distribution.
  15  *
  16  * - Neither the name of the Git Development Community nor the
  17  *   names of its contributors may be used to endorse or promote
  18  *   products derived from this software without specific prior
  19  *   written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
  22  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
  23  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  26  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  27  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  29  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  30  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  31  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  33  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  */
  35
  36 #include "git/odb.h"
  37
  38 struct git_odb {
  39         /** Path to the "objects" directory. */
  40         const char *path;
  41
  42         /** Alternate databases to search. */
  43         git_odb **alternates;
  44
  45         /** Number of alternates available. */
  46         unsigned n_alternates;
  47 };
  48
  49 int git_odb_read(
  50         git_sobj *out,
  51         git_odb *db,
  52         const git_oid *id)
  53 {
  54         if (!git_odb__read_packed(out, db, id))
  55                 return GIT_SUCCESS;
  56         return git_odb__read_loose(out, db, id);
  57 }