backup-dir-dels.diff

   1 This patches creates two new command line options as follows:
   2         --backup-dir-dels=DIR
   3         --suffix-dels=SUFFIX
   4
   5 The backup-dir-dels and suffix-dels options give the ability to store
   6 backup of removed files on the receiver in different directories or with
   7 different suffix than the backup of files that have been changed but that
   8 are still on the source drive.  Both commands can be combined.
   9
  10 The default behaviour if one or both of the options are not specified
  11 is the previous behaviour, both backups use the same directory or
  12 suffix.
  13
  14 Marc St-Onge
  15
  16 --- orig/backup.c       2005-06-10 21:33:27
  17 +++ backup.c    2005-02-22 02:11:15
  18 @@ -22,11 +22,17 @@
  19
  20  extern int verbose;
  21  extern int backup_suffix_len;
  22 +extern int backup_suffix_dels_len;
  23  extern int backup_dir_len;
  24 +extern int backup_dir_dels_len;
  25  extern unsigned int backup_dir_remainder;
  26 +extern unsigned int backup_dir_dels_remainder;
  27  extern char backup_dir_buf[MAXPATHLEN];
  28 +extern char backup_dir_dels_buf[MAXPATHLEN];
  29  extern char *backup_suffix;
  30 +extern char *backup_suffix_dels;
  31  extern char *backup_dir;
  32 +extern char *backup_dir_dels;
  33
  34  extern int am_root;
  35  extern int preserve_devices;
  36 @@ -35,6 +41,8 @@ extern int preserve_hard_links;
  37  extern int orig_umask;
  38  extern int safe_symlinks;
  39
  40 +static int deleting;
  41 +
  42  /* make a complete pathname for backup file */
  43  char *get_backup_name(char *fname)
  44  {
  45 @@ -52,11 +60,28 @@ char *get_backup_name(char *fname)
  46         return NULL;
  47  }
  48
  49 +static char *get_delete_name(char *fname)
  50 +{
  51 +       if (backup_dir_dels) {
  52 +               if (stringjoin(backup_dir_dels_buf + backup_dir_dels_len, backup_dir_dels_remainder,
  53 +                              fname, backup_suffix_dels, NULL) < backup_dir_dels_remainder)
  54 +                       return backup_dir_dels_buf;
  55 +       } else {
  56 +               if (stringjoin(backup_dir_dels_buf, MAXPATHLEN,
  57 +                              fname, backup_suffix_dels, NULL) < MAXPATHLEN)
  58 +                       return backup_dir_dels_buf;
  59 +       }
  60 +
  61 +       rprintf(FERROR, "delete filename too long\n");
  62 +       return NULL;
  63 +}
  64 +
  65  /* simple backup creates a backup with a suffix in the same directory */
  66  static int make_simple_backup(char *fname)
  67  {
  68         int rename_errno;
  69 -       char *fnamebak = get_backup_name(fname);
  70 +       char *fnamebak = deleting ? get_delete_name(fname)
  71 +                                 : get_backup_name(fname);
  72
  73         if (!fnamebak)
  74                 return 0;
  75 @@ -97,7 +122,8 @@ path
  76  static int make_bak_dir(char *fullpath)
  77  {
  78         STRUCT_STAT st;
  79 -       char *rel = fullpath + backup_dir_len;
  80 +       int dir_len = deleting ? backup_dir_dels_len : backup_dir_len;
  81 +       char *rel = fullpath + dir_len;
  82         char *end = rel + strlen(rel);
  83         char *p = end;
  84
  85 @@ -184,7 +210,8 @@ static int keep_backup(char *fname)
  86         if (!(file = make_file(fname, NULL, NO_FILTERS)))
  87                 return 1; /* the file could have disappeared */
  88
  89 -       if (!(buf = get_backup_name(fname)))
  90 +       buf = deleting ? get_delete_name(fname) : get_backup_name(fname);
  91 +       if (!buf)
  92                 return 0;
  93
  94         /* Check to see if this is a device file, or link */
  95 @@ -278,3 +305,13 @@ int make_backup(char *fname)
  96                 return keep_backup(fname);
  97         return make_simple_backup(fname);
  98  }
  99 +
 100 +/* backup switch routine called only when backing-up removed file */
 101 +int safe_delete(char *fname)
 102 +{
 103 +       int ret;
 104 +       deleting = 1;
 105 +       ret = make_backup(fname);
 106 +       deleting = 0;
 107 +       return ret;
 108 +}
 109 --- orig/generator.c    2005-10-30 22:30:28
 110 +++ generator.c 2005-03-11 11:22:38
 111 @@ -88,16 +88,23 @@ extern dev_t filesystem_dev;
 112  extern char *backup_dir;
 113  extern char *backup_suffix;
 114  extern int backup_suffix_len;
 115 +extern char *backup_dir_dels;
 116 +extern char *backup_suffix_dels;
 117 +extern int backup_suffix_dels_len;
 118  extern struct file_list *the_file_list;
 119  extern struct filter_list_struct server_filter_list;
 120
 121  static int deletion_count = 0; /* used to implement --max-delete */
 122
 123
 124 +/* Function now compares both backup_suffix and backup_suffix_dels. */
 125  static int is_backup_file(char *fn)
 126  {
 127         int k = strlen(fn) - backup_suffix_len;
 128 -       return k > 0 && strcmp(fn+k, backup_suffix) == 0;
 129 +       if (k > 0 && strcmp(fn+k, backup_suffix) == 0)
 130 +               return 1;
 131 +       k += backup_suffix_len - backup_suffix_dels_len;
 132 +       return k > 0 && strcmp(fn+k, backup_suffix_dels) == 0;
 133  }
 134
 135
 136 @@ -114,8 +121,8 @@ static int delete_item(char *fname, int
 137         if (!S_ISDIR(mode)) {
 138                 if (max_delete && ++deletion_count > max_delete)
 139                         return 0;
 140 -               if (make_backups && (backup_dir || !is_backup_file(fname)))
 141 -                       ok = make_backup(fname);
 142 +               if (make_backups && (backup_dir_dels || !is_backup_file(fname)))
 143 +                       ok = safe_delete(fname);
 144                 else
 145                         ok = robust_unlink(fname) == 0;
 146                 if (ok) {
 147 @@ -138,9 +145,9 @@ static int delete_item(char *fname, int
 148             || (dry_run && zap_dir)) {
 149                 ok = 0;
 150                 errno = ENOTEMPTY;
 151 -       } else if (make_backups && !backup_dir && !is_backup_file(fname)
 152 +       } else if (make_backups && !backup_dir_dels && !is_backup_file(fname)
 153             && !(flags & DEL_FORCE_RECURSE))
 154 -               ok = make_backup(fname);
 155 +               ok = safe_delete(fname);
 156         else
 157                 ok = do_rmdir(fname) == 0;
 158         if (ok) {
 159 --- orig/options.c      2005-11-07 04:29:01
 160 +++ options.c   2005-11-07 04:35:54
 161 @@ -131,10 +131,14 @@ int no_detach
 162  int write_batch = 0;
 163  int read_batch = 0;
 164  int backup_dir_len = 0;
 165 +int backup_dir_dels_len = 0;
 166  int backup_suffix_len;
 167 +int backup_suffix_dels_len;
 168  unsigned int backup_dir_remainder;
 169 +unsigned int backup_dir_dels_remainder;
 170
 171  char *backup_suffix = NULL;
 172 +char *backup_suffix_dels = NULL;
 173  char *tmpdir = NULL;
 174  char *partial_dir = NULL;
 175  char *basis_dir[MAX_BASIS_DIRS+1];
 176 @@ -145,7 +149,9 @@ char *password_file = NULL;
 177  char *rsync_path = RSYNC_PATH;
 178  char *backup_dir = NULL;
 179  char *chmod_mode = NULL;
 180 +char *backup_dir_dels = NULL;
 181  char backup_dir_buf[MAXPATHLEN];
 182 +char backup_dir_dels_buf[MAXPATHLEN];
 183  int rsync_port = 0;
 184  int compare_dest = 0;
 185  int copy_dest = 0;
 186 @@ -278,6 +284,8 @@ void usage(enum logcode F)
 187    rprintf(F," -b, --backup                make backups (see --suffix & --backup-dir)\n");
 188    rprintf(F,"     --backup-dir=DIR        make backups into hierarchy based in DIR\n");
 189    rprintf(F,"     --suffix=SUFFIX         set backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
 190 +  rprintf(F,"     --backup-dir-dels       make backups of removed files into current dir\n");
 191 +  rprintf(F,"     --suffix-dels=SUFFIX    set removed-files suffix (defaults to --suffix)\n");
 192    rprintf(F," -u, --update                skip files that are newer on the receiver\n");
 193    rprintf(F,"     --inplace               update destination files in-place (SEE MAN PAGE)\n");
 194    rprintf(F,"     --append                append data onto shorter files\n");
 195 @@ -473,7 +481,9 @@ static struct poptOption long_options[]
 196    {"bwlimit",          0,  POPT_ARG_INT,    &bwlimit, 0, 0, 0 },
 197    {"backup",          'b', POPT_ARG_NONE,   &make_backups, 0, 0, 0 },
 198    {"backup-dir",       0,  POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
 199 +  {"backup-dir-dels",  0,  POPT_ARG_STRING, &backup_dir_dels, 0, 0, 0 },
 200    {"suffix",           0,  POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
 201 +  {"suffix-dels",      0,  POPT_ARG_STRING, &backup_suffix_dels, 0, 0, 0 },
 202    {"list-only",        0,  POPT_ARG_VAL,    &list_only, 2, 0, 0 },
 203    {"read-batch",       0,  POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
 204    {"write-batch",      0,  POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
 205 @@ -1131,6 +1141,8 @@ int parse_arguments(int *argc, const cha
 206                         partial_dir = sanitize_path(NULL, partial_dir, NULL, 0);
 207                 if (backup_dir)
 208                         backup_dir = sanitize_path(NULL, backup_dir, NULL, 0);
 209 +               if (backup_dir_dels)
 210 +                       backup_dir_dels = sanitize_path(NULL, backup_dir_dels, NULL, 0);
 211         }
 212         if (server_filter_list.head && !am_sender) {
 213                 struct filter_list_struct *elp = &server_filter_list;
 214 @@ -1165,6 +1177,14 @@ int parse_arguments(int *argc, const cha
 215                                 return 0;
 216                         }
 217                 }
 218 +               /* Clean backup_dir_dels same as for backup_dir */
 219 +               if (backup_dir_dels) {
 220 +                       if (!*backup_dir_dels)
 221 +                               goto options_rejected;
 222 +                       clean_fname(backup_dir_dels, 1);
 223 +                       if (check_filter(elp, backup_dir_dels, 1) < 0)
 224 +                               goto options_rejected;
 225 +               }
 226         }
 227
 228         if (!backup_suffix)
 229 @@ -1176,6 +1196,16 @@ int parse_arguments(int *argc, const cha
 230                         backup_suffix);
 231                 return 0;
 232         }
 233 +       /* if backup_suffix_dels not supplied, default to backup_suffix */
 234 +       if (!backup_suffix_dels)
 235 +               backup_suffix_dels = backup_dir_dels ? "" : backup_suffix;
 236 +       backup_suffix_dels_len = strlen(backup_suffix_dels);
 237 +       if (strchr(backup_suffix_dels, '/') != NULL) {
 238 +               snprintf(err_buf, sizeof err_buf,
 239 +                       "--suffix-dels cannot contain slashes: %s\n",
 240 +                       backup_suffix_dels);
 241 +               return 0;
 242 +       }
 243         if (backup_dir) {
 244                 backup_dir_len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
 245                 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
 246 @@ -1197,6 +1227,31 @@ int parse_arguments(int *argc, const cha
 247                         "--suffix cannot be a null string without --backup-dir\n");
 248                 return 0;
 249         }
 250 +       /* If backup_dir_dels not supplied default to backup_dir if it has been supplied */
 251 +       if (backup_dir && !backup_dir_dels) {
 252 +               backup_dir_dels = backup_dir;
 253 +               backup_dir_dels_len = backup_dir_len;
 254 +               backup_dir_dels_remainder = backup_dir_remainder;
 255 +               strlcpy(backup_dir_dels_buf, backup_dir_buf, sizeof backup_dir_buf);
 256 +       } else if (backup_dir_dels) {
 257 +               backup_dir_dels_len = strlcpy(backup_dir_dels_buf, backup_dir_dels, sizeof backup_dir_dels_buf);
 258 +               backup_dir_dels_remainder = sizeof backup_dir_dels_buf - backup_dir_dels_len;
 259 +               if (backup_dir_dels_remainder < 32) {
 260 +                       snprintf(err_buf, sizeof err_buf,
 261 +                               "the --backup-dir-dels path is WAY too long.\n");
 262 +                       return 0;
 263 +               }
 264 +               if (backup_dir_dels_buf[backup_dir_dels_len - 1] != '/') {
 265 +                       backup_dir_dels_buf[backup_dir_dels_len++] = '/';
 266 +                       backup_dir_dels_buf[backup_dir_dels_len] = '\0';
 267 +               }
 268 +               if (verbose > 1 && !am_sender)
 269 +                       rprintf(FINFO, "backup_dir_dels is %s\n", backup_dir_dels_buf);
 270 +       } else if (!backup_suffix_dels_len && (!am_server || !am_sender)) {
 271 +               snprintf(err_buf, sizeof err_buf,
 272 +                       "--suffix-dels cannot be a null string without --backup-dir-dels\n");
 273 +               return 0;
 274 +       }
 275         if (make_backups && !backup_dir)
 276                 omit_dir_times = 1;
 277
 278 @@ -1519,6 +1574,10 @@ void server_options(char **args,int *arg
 279                 args[ac++] = "--backup-dir";
 280                 args[ac++] = backup_dir;
 281         }
 282 +       if (backup_dir_dels) {
 283 +               args[ac++] = "--backup-dir-dels";
 284 +               args[ac++] = backup_dir_dels;
 285 +       }
 286
 287         /* Only send --suffix if it specifies a non-default value. */
 288         if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0) {
 289 @@ -1527,7 +1586,13 @@ void server_options(char **args,int *arg
 290                         goto oom;
 291                 args[ac++] = arg;
 292         }
 293 -
 294 +       /* Only send --suffix-dels if it specifies a non-default value. */
 295 +       if (strcmp(backup_suffix_dels, backup_dir_dels ? "" : BACKUP_SUFFIX) != 0) {
 296 +               /* We use the following syntax to avoid weirdness with '~'. */
 297 +               if (asprintf(&arg, "--suffix-dels=%s", backup_suffix_dels) < 0)
 298 +                       goto oom;
 299 +               args[ac++] = arg;
 300 +       }
 301         if (am_sender) {
 302                 if (delete_excluded)
 303                         args[ac++] = "--delete-excluded";