Differences From Artifact [ba487d186b]:

• File src/name.c — part of check-in [41cf3e7c1d] at 2008-02-06 03:05:42 on branch trunk — Remove string_xform.c from the makefile. Require a "sym-" prefix on tags used to name baselines or branches. The prefix is omitted when the tag is used for this purpose; it is only there to avoid ambiguity with other built-in tag names. (user: drh size: 4458)

To Artifact [825efda6ea]:

• File src/name.c — part of check-in [d1c9938025] at 2008-07-27 18:35:06 on branch trunk — Change behavior of Fossil's tag handling. 1. All subcommands of command <tt>tag</tt> prepends a prefix <tt>sym-</tt> infront of every tag name passed to them. Tags beginning with <tt>sym-</tt> are special in Fossil as they might serve as replacement of a UUID they are attached to.<br><br> Further, <tt>tag list</tt> will only list all tags beginning with <tt>sym-</tt> but with that prefix removed during display as default.<br><br> All subcommands can get passed an option <tt>--raw</tt>, that prevent the prepending of the prefix <tt>sym-</tt> in front of the tag name. <tt>tag list</tt> will report all tags without removing any prefix if called with option <tt>--raw</tt>. 2. If a command takes a tag name that may be confused with a UUID, the command did interpret that parameter as a UUID instead as a tag name. Such tags might now be prefixed with a <tt>tag:</tt> to enforce the command to take them as tag name instead of a UUID. For example: <verbatim> fossil tag add abcde $uuid : fossil update tag:abcde </verbatim> without the prefix <tt>tag:</tt> fossil would try to update to a UUID beginning with <tt>abcde</tt>. If no such UUID was found, fossil will complain and exit. (user: cle size: 4666)

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int name_to_uuid(Blob *pName, int iErrPriority){
  int rc;
  int sz;
  sz = blob_size(pName);
  if( sz>UUID_SIZE || sz<4 || !validate16(blob_buffer(pName), sz) ){
    Stmt q;
    Blob uuid;








    db_prepare(&q,
      "SELECT (SELECT uuid FROM blob WHERE rid=objid)"
      "  FROM tagxref JOIN event ON rid=objid"
      " WHERE tagid=(SELECT tagid FROM tag WHERE tagname='sym-'||%B)"
      "   AND tagtype>0"
      "   AND value IS NULL"
      " ORDER BY event.mtime DESC",
      pName
    );
    blob_zero(&uuid);
    if( db_step(&q)==SQLITE_ROW ){
      db_column_blob(&q, 0, &uuid);
    }
    db_finalize(&q);
    if( blob_size(&uuid)==0 ){
      fossil_error(iErrPriority, "not a valid object name: %b", pName);
      blob_reset(&uuid);
      return 1;
    }else{
      blob_reset(pName);
      *pName = uuid;
      return 0;
    }

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int name_to_uuid(Blob *pName, int iErrPriority){
  int rc;
  int sz;
  sz = blob_size(pName);
  if( sz>UUID_SIZE || sz<4 || !validate16(blob_buffer(pName), sz) ){
    Stmt q;
    Blob uuid;
    static const char prefix[] = "tag:";
    static const int preflen = sizeof(prefix)-1;
    const char *zName = blob_str(pName);

    if( strncmp(zName, prefix, preflen)==0 ){
      zName += preflen;
    }

    db_prepare(&q,
      "SELECT (SELECT uuid FROM blob WHERE rid=objid)"
      "  FROM tagxref JOIN event ON rid=objid"
      " WHERE tagid=(SELECT tagid FROM tag WHERE tagname='sym-'||%Q)"
      "   AND tagtype>0"
      "   AND value IS NULL"
      " ORDER BY event.mtime DESC",
      zName
    );
    blob_zero(&uuid);
    if( db_step(&q)==SQLITE_ROW ){
      db_column_blob(&q, 0, &uuid);
    }
    db_finalize(&q);
    if( blob_size(&uuid)==0 ){
      fossil_error(iErrPriority, "not a valid object name: %s", zName);
      blob_reset(&uuid);
      return 1;
    }else{
      blob_reset(pName);
      *pName = uuid;
      return 0;
    }