Fossil

  rid = name_to_rid(g.argv[2]);
  content_get(rid, &content);
  manifest_crosslink(rid, &content, MC_NONE);
}

/*
** For a given CATYPE_... value, returns a human-friendly name, or
** NULL if typeId is unknown or is CFTYPE_ANY.
** NULL if typeId is unknown or is CFTYPE_ANY. The names returned by
** this function are geared towards use with artifact_to_json(), and
** may differ from some historical uses. e.g. CFTYPE_CONTROL artifacts
** are called "tag" artifacts by this function.
*/
const char * artifact_type_to_name(int typeId){
  switch(typeId){
    case CFTYPE_MANIFEST: return "checkin";
    case CFTYPE_CLUSTER: return "cluster";
    case CFTYPE_CONTROL: return "tag";
    case CFTYPE_WIKI: return "wiki";

** Pedantic note: this routine traverses p->aFile directly, rather than
** using manifest_file_next(), so that delta manifests are rendered as-is
** instead of having their derived files. If that policy is ever changed,
** p will need to be non-const.
*/
void artifact_to_json(Manifest const *p, Blob *b){
  int i;
  char *zUuid;

  blob_append_literal(b, "{");
  zUuid = rid_to_uuid(p->rid);
  blob_appendf(b, "\"uuid\": %!j", zUuid);
  blob_appendf(b, "\"uuid\": \"%z\"", rid_to_uuid(p->rid));
  /*blob_appendf(b, ", \"rid\": %d", p->rid); not portable across repos*/
  blob_appendf(b, ", \"type\": %!j", artifact_type_to_name(p->type));
#define ISA(TYPE) if( p->type==TYPE )
#define CARD_LETTER(LETTER) \
  blob_append_literal(b, ",\"" #LETTER "\": ")
#define CARD_STR(LETTER, VAL) \
  assert( VAL ); CARD_LETTER(LETTER); blob_appendf(b, "%!j", VAL)
#define CARD_STR2(LETTER, VAL) \
  if( VAL ) { CARD_STR(LETTER, VAL); } (void)0
#define STR_OR_NULL(VAL)                 \
  if( VAL ) blob_appendf(b, "%!j", VAL); \
  else blob_append(b, "null", 4)
#define KVP_STR(ADDCOMMA, KEY,VAL)  \
  if(ADDCOMMA) blob_append_char(b, ','); \
  blob_appendf(b, "%!j: ", #KEY);   \
  STR_OR_NULL(VAL)

  /* Noting that only 1 (at most) of the A-card pieces will be non-NULL... */
  ISA( CFTYPE_ATTACHMENT ){
    CARD_LETTER(A);
    blob_append_char(b, '{');
    KVP_STR(0, filename, p->zAttachName);
    KVP_STR(1, target, p->zAttachTarget);
    KVP_STR(1, source, p->zAttachSrc);
    blob_append_char(b, '}');

      KVP_STR(1, value, p->aTag[i].zValue);
      blob_append_char(b, '}');
    }
    blob_append_char(b, ']');
  }
  CARD_STR2(U, p->zUser);
  CARD_STR2(W, p->zWiki);
  fossil_free(zUuid);
  blob_append_literal(b, "}");
#undef CARD_FMT
#undef CARD_LETTER
#undef CARD_STR
#undef CARD_STR2
#undef ISA
#undef KVP_STR