Fossil

** the project are imported into a different Fossil project, the manifest
** file will not be interpreted as a control artifact in that other project.
**
** Normally it is sufficient to simply append the extra line of text.
** However, if the manifest is PGP signed then the extra line has to be
** inserted before the PGP signature (thus invalidating the signature).
*/
void sterilize_manifest(Blob *p, int eType){
  char *z, *zOrig;
  int n, nOrig;
  static const char zExtraLine[] =
      "# Remove this line to create a well-formed Fossil %s.\n";
  const char *zType = eType==CFTYPE_MANIFEST ? "manifest" : "control artifact";

  z = zOrig = blob_materialize(p);
  n = nOrig = blob_size(p);
  remove_pgp_signature((const char **)&z, &n);
  if( z==zOrig ){
    blob_appendf(p, zExtraLine/*works-like:"%s"*/, zType);
  }else{
    int iEnd;
    Blob copy;
    memcpy(&copy, p, sizeof(copy));
    blob_init(p, 0, 0);
    iEnd = (int)(&z[n] - zOrig);
    blob_append(p, zOrig, iEnd);
    blob_appendf(p, zExtraLine/*works-like:"%s"*/, zType);
    blob_append(p, &zOrig[iEnd], -1);
    blob_zero(&copy);
  }
}

/*
** This is the comparison function used to sort the tag array.