Fossil

Check-in [8d1ed47c]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:Add a test command to infer the hash policy from the length of path names on reconstruct (disabled by preprocessor directive).
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | reconstruct-sha3
Files: files | file ages | folders
SHA3-256: 8d1ed47cc6893493473b747a0f5743498b58c7c81294d7ad96ea7b354b4ee47b
User & Date: florian 2019-01-29 14:29:00
Wiki:reconstruct-sha3
Context
2019-02-05
15:43
Enhance the "reconstruct" command so that sets the correct hash policy for artifacts read from disk. check-in: 93bb3231 user: drh tags: trunk
2019-01-29
14:29
Add a test command to infer the hash policy from the length of path names on reconstruct (disabled by preprocessor directive). Closed-Leaf check-in: 8d1ed47c user: florian tags: reconstruct-sha3
14:09
Calculate hash lengths with skipped directory slashes. check-in: c47adb91 user: florian tags: reconstruct-sha3
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/rebuild.c.

1072
1073
1074
1075
1076
1077
1078




























































1079
1080
1081
1082
1083
1084
1085
void recon_restore_hash_policy(){
  if( saved_eHashPolicy!=-1 ){
    g.eHashPolicy = saved_eHashPolicy;
    saved_eHashPolicy = -1;
  }
}





























































/*
** COMMAND: reconstruct*
**
** Usage: %fossil reconstruct ?OPTIONS? FILENAME DIRECTORY
**
** This command studies the artifacts (files) in DIRECTORY and
** reconstructs the fossil record from them. It places the new







>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>







1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
void recon_restore_hash_policy(){
  if( saved_eHashPolicy!=-1 ){
    g.eHashPolicy = saved_eHashPolicy;
    saved_eHashPolicy = -1;
  }
}

#if 0
/*
** COMMAND: test-hash-from-path*
**
** Usage: %fossil test-hash-from-path ?OPTIONS? DESTINATION UUID
**
** Generate a sample path name from DESTINATION and UUID, as the `deconstruct'
** command would do.  Then try to guess the hash policy from the path name, as
** the `reconstruct' command would do.
**
** No files or directories will be created.
**
** Options:
**   -L|--prefixlength N     Set the length of the names of the DESTINATION
**                           subdirectories to N.
*/
void test_hash_from_path_cmd(void) {
  char *zDest;
  char *zUuid;
  char *zFile;
  const char *zHashPolicy = "unknown";
  const char *zPrefixOpt = find_option("prefixlength","L",1);
  int iPrefixLength;
  if( !zPrefixOpt ){
    iPrefixLength = 2;
  }else{
    iPrefixLength = atoi(zPrefixOpt);
    if( iPrefixLength<0 || iPrefixLength>9 ){
      fossil_fatal("N(%s) is not a valid prefix length!",zPrefixOpt);
    }
  }
  if( g.argc!=4 ){
    usage ("?OPTIONS? DESTINATION UUID");
  }
  zDest = g.argv[2];
  zUuid = g.argv[3];
  if( iPrefixLength ){
    zFNameFormat = mprintf("%s/%%.%ds/%%s",zDest,iPrefixLength);
  }else{
    zFNameFormat = mprintf("%s/%%s",zDest);
  }
  cchFNamePrefix = strlen(zDest);
  zFile = mprintf(zFNameFormat /*works-like:"%s:%s"*/,
                  zUuid, zUuid+iPrefixLength);
  recon_set_hash_policy(cchFNamePrefix,zFile);
  if( saved_eHashPolicy!=-1 ){
    zHashPolicy = hpolicy_name();
  }
  recon_restore_hash_policy();
  fossil_print(
    "\nPath Name:   %s"
    "\nHash Policy: %s\n",
    zFile,zHashPolicy);
  free(zFile);
  free(zFNameFormat);
  zFNameFormat = 0;
  cchFNamePrefix = 0;
}
#endif

/*
** COMMAND: reconstruct*
**
** Usage: %fossil reconstruct ?OPTIONS? FILENAME DIRECTORY
**
** This command studies the artifacts (files) in DIRECTORY and
** reconstructs the fossil record from them. It places the new