repo_tree.h

   1 /******************************************************************************
   2  *
   3  * Copyright (C) 2010 David Barr <david.barr@cordelta.com>.
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice(s), this list of conditions and the following disclaimer
  11  *    unmodified other than the allowable addition of one or more
  12  *    copyright notices.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice(s), this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
  19  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
  22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  25  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  26  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  27  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  28  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  ******************************************************************************/
  31
  32 #ifndef REPO_TREE_H_
  33 #define REPO_TREE_H_
  34
  35 #define REPO_MODE_DIR 0040000
  36 #define REPO_MODE_BLB 0100644
  37 #define REPO_MODE_EXE 0100755
  38 #define REPO_MODE_LNK 0120000
  39
  40 typedef struct repo_dirent_s repo_dirent_t;
  41
  42 struct repo_dirent_s {
  43     uint32_t name_offset;
  44     uint32_t mode;
  45     uint32_t content_offset;
  46 };
  47
  48 typedef struct repo_dir_s repo_dir_t;
  49
  50 struct repo_dir_s {
  51     uint32_t size;
  52     uint32_t first_offset;
  53 };
  54
  55 typedef struct repo_dir_gc_s repo_dir_gc_t;
  56
  57 struct repo_dir_gc_s {
  58     uint32_t offset;
  59     repo_dir_t dir;
  60 };
  61
  62 typedef struct repo_commit_s repo_commit_t;
  63
  64 struct repo_commit_s {
  65     uint32_t mark;
  66     uint32_t root_dir_offset;
  67 };
  68
  69 void repo_copy(uint32_t revision, char *src, char *dst);
  70
  71 void repo_add(char *path, uint32_t mode, uint32_t blob_mark);
  72
  73 void repo_modify(char *path, uint32_t blob_mark);
  74
  75 void repo_delete(char *path);
  76
  77 void repo_commit(uint32_t revision);
  78
  79 void repo_diff(uint32_t r1, uint32_t r2);
  80
  81 #endif