subversion/libsvn_delta/default_editor.c

   1 /*
   2  * default_editor.c -- provide a basic svn_delta_editor_t
   3  *
   4  * ====================================================================
   5  * Copyright (c) 2000-2004 CollabNet.  All rights reserved.
   6  *
   7  * This software is licensed as described in the file COPYING, which
   8  * you should have received as part of this distribution.  The terms
   9  * are also available at http://subversion.tigris.org/license-1.html.
  10  * If newer versions of this license are posted there, you may use a
  11  * newer version instead, at your option.
  12  *
  13  * This software consists of voluntary contributions made by many
  14  * individuals.  For exact contribution history, see the revision
  15  * history and logs, available at http://subversion.tigris.org/.
  16  * ====================================================================
  17  */
  18
  19
  20 #include <apr_pools.h>
  21 #include <apr_strings.h>
  22
  23 #include "svn_types.h"
  24 #include "svn_delta.h"
  25
  26 \f
  27 static svn_error_t *
  28 set_target_revision(void *edit_baton,
  29                     svn_revnum_t target_revision,
  30                     apr_pool_t *pool)
  31 {
  32   return SVN_NO_ERROR;
  33 }
  34 static svn_error_t *
  35 add_item(const char *path,
  36          void *parent_baton,
  37          const char *copyfrom_path,
  38          svn_revnum_t copyfrom_revision,
  39          apr_pool_t *pool,
  40          void **baton)
  41 {
  42   *baton = NULL;
  43   return SVN_NO_ERROR;
  44 }
  45
  46
  47 static svn_error_t *
  48 single_baton_func(void *baton,
  49                   apr_pool_t *pool)
  50 {
  51   return SVN_NO_ERROR;
  52 }
  53
  54
  55 static svn_error_t *
  56 absent_xxx_func(const char *path,
  57                 void *baton,
  58                 apr_pool_t *pool)
  59 {
  60   return SVN_NO_ERROR;
  61 }
  62
  63
  64 static svn_error_t *
  65 open_root(void *edit_baton,
  66           svn_revnum_t base_revision,
  67           apr_pool_t *dir_pool,
  68           void **root_baton)
  69 {
  70   *root_baton = NULL;
  71   return SVN_NO_ERROR;
  72 }
  73
  74 static svn_error_t *
  75 delete_entry(const char *path,
  76              svn_revnum_t revision,
  77              void *parent_baton,
  78              apr_pool_t *pool)
  79 {
  80   return SVN_NO_ERROR;
  81 }
  82
  83 static svn_error_t *
  84 open_item(const char *path,
  85           void *parent_baton,
  86           svn_revnum_t base_revision,
  87           apr_pool_t *pool,
  88           void **baton)
  89 {
  90   *baton = NULL;
  91   return SVN_NO_ERROR;
  92 }
  93
  94 static svn_error_t *
  95 change_prop(void *file_baton,
  96             const char *name,
  97             const svn_string_t *value,
  98             apr_pool_t *pool)
  99 {
 100   return SVN_NO_ERROR;
 101 }
 102
 103 svn_error_t *svn_delta_noop_window_handler(svn_txdelta_window_t *window,
 104                                            void *baton)
 105 {
 106   return SVN_NO_ERROR;
 107 }
 108
 109 static svn_error_t *
 110 apply_textdelta(void *file_baton,
 111                 const char *base_checksum,
 112                 apr_pool_t *pool,
 113                 svn_txdelta_window_handler_t *handler,
 114                 void **handler_baton)
 115 {
 116   *handler = svn_delta_noop_window_handler;
 117   *handler_baton = NULL;
 118   return SVN_NO_ERROR;
 119 }
 120
 121
 122 static svn_error_t *
 123 close_file(void *file_baton,
 124            const char *text_checksum,
 125            apr_pool_t *pool)
 126 {
 127   return SVN_NO_ERROR;
 128 }
 129
 130
 131 \f
 132 static const svn_delta_editor_t default_editor =
 133 {
 134   set_target_revision,
 135   open_root,
 136   delete_entry,
 137   add_item,
 138   open_item,
 139   change_prop,
 140   single_baton_func,
 141   absent_xxx_func,
 142   add_item,
 143   open_item,
 144   apply_textdelta,
 145   change_prop,
 146   close_file,
 147   absent_xxx_func,
 148   single_baton_func,
 149   single_baton_func
 150 };
 151
 152 svn_delta_editor_t *
 153 svn_delta_default_editor(apr_pool_t *pool)
 154 {
 155   return apr_pmemdup(pool, &default_editor, sizeof(default_editor));
 156 }