Fossil

    manifest_crosslink(nrid, &ctrl, MC_PERMIT_HOOKS);
  }
  assert( blob_is_reset(&ctrl) );
  if( g.localOpen ){
    manifest_to_disk(rid);
  }
}

/*
** If zTag is NULL or valid for use as a tag for the `tag add` and
** `tag cancel` commands, returns without side effects, else emits a
** fatal error message. We reject certain prefixes to avoid that
** clients cause undue grief by improperly tagging artifacts as being,
** e.g., wiki pages or tickets.
*/
static void tag_cmd_tagname_check(const char *zTag){
  if(zTag && *zTag &&
     (strncmp(zTag,"wiki-",5)==0
      || strncmp(zTag,"tkt-",4)==0
      || strncmp(zTag,"event-",6)==0)){
    fossil_fatal("Invalid prefix for tag name: %s", zTag);
  }
}

/*
** COMMAND: tag
**
** Usage: %fossil tag SUBCOMMAND ...
**
** Run various subcommands to control tags and properties.
**
** > fossil tag add ?OPTIONS? TAGNAME CHECK-IN ?VALUE?
** > fossil tag add ?OPTIONS? TAGNAME ARTIFACT-ID ?VALUE?
**
**         Add a new tag or property to CHECK-IN. The tag will
**         be usable instead of a CHECK-IN in commands such as
**         update and merge.  If the --propagate flag is present,
**         the tag value propagates to all descendants of CHECK-IN
**         Add a new tag or property to an artifact referenced by
**         ARTIFACT-ID. For checkins, the tag will be usable instead
**         of a CHECK-IN in commands such as update and merge. If the
**         --propagate flag is present and ARTIFACT-ID refers to a
**         wiki page, forum post, tech-note, or check-in, the tag
**         propagates to all descendants of that artifact.
**
**         Options:
**           --raw                       Raw tag name.
**           --propagate                 Propagating tag.
**           --date-override DATETIME    Set date and time added.
**           --user-override USER        Name USER when adding the tag.
**           -n|--dryrun                 Display the tag text, but do not
**                                       actually insert it into the database.
**           --raw                      Raw tag name. Ignored for
**                                      non-CHECK-IN artifacts.
**           --propagate                Propagating tag.
**           --date-override DATETIME   Set date and time added.
**           --user-override USER       Name USER when adding the tag.
**           -n|--dryrun                Display the tag text, but do not
**                                      actually insert it into the database.
**
**         The --date-override and --user-override options support
**         importing history from other SCM systems. DATETIME has
**         the form 'YYYY-MMM-DD HH:MM:SS'.
**
**         Note that fossil uses some tag prefixes internally and this
**         command will reject tags with these prefixes to avoid
**         causing problems or confusion: "wiki-", "tkt-", "event-".
**
** > fossil tag cancel ?--raw? TAGNAME CHECK-IN
** > fossil tag cancel ?--raw? TAGNAME ARTIFACT-ID
**
**         Remove the tag TAGNAME from CHECK-IN, and also remove
**         the propagation of the tag to any descendants.  Use the
**         the -n|--dryrun option to see what would have happened.
**         Remove the tag TAGNAME from the artifact referenced by
**         ARTIFACT-ID, and also remove the propagation of the tag to
**         any descendants.  Use the the -n|--dryrun option to see
**         what would have happened. Certain tag name prefixes are
**         forbidden, as documented for the 'add' subcommand.
**
**         Options:
**           --raw                       Raw tag name.
**           --raw                       Raw tag name. Ignored for
**                                       non-CHECK-IN artifacts.
**           --date-override DATETIME    Set date and time deleted.
**           --user-override USER        Name USER when deleting the tag.
**           -n|--dryrun                 Display the control artifact, but do
**                                       not insert it into the database.
**
** > fossil tag find ?OPTIONS? TAGNAME
**

    goto tag_cmd_usage;
  }

  if( strncmp(g.argv[2],"add",n)==0 ){
    char *zValue;
    int dryRun = 0;
    int fRaw = find_option("raw","",0)!=0;
    const char *zPrefix = fRaw ? "" : "sym-";
    const char *zPrefix = "";
    int fPropagate = find_option("propagate","",0)!=0;
    const char *zDateOvrd = find_option("date-override",0,1);
    const char *zUserOvrd = find_option("user-override",0,1);
    const char *zTag;
    const char *zObjId;
    int objType;
    if( find_option("dryrun","n",0)!=0 ) dryRun = TAG_ADD_DRYRUN;
    if( g.argc!=5 && g.argc!=6 ){
      usage("add ?options? TAGNAME CHECK-IN ?VALUE?");
      usage("add ?options? TAGNAME ARTIFACT-ID ?VALUE?");
    }
    zTag = g.argv[3];
    tag_cmd_tagname_check(zTag);
    zObjId = g.argv[4];
    zValue = g.argc==6 ? g.argv[5] : 0;
    objType = whatis_rid_type(symbolic_name_to_rid(zObjId, 0));
    switch(objType){
      case 0:
        fossil_fatal("Cannot resolve artifact ID: %s", zObjId);
        break;
      case CFTYPE_MANIFEST:
        zPrefix = fRaw ? "" : "sym-";
        break;
      default: break;
    }
    db_begin_transaction();
    tag_add_artifact(zPrefix, g.argv[3], g.argv[4], zValue,
    tag_add_artifact(zPrefix, zTag, zObjId, zValue,
                     1+fPropagate+dryRun,zDateOvrd,zUserOvrd);
    db_end_transaction(0);
  }else

  if( strncmp(g.argv[2],"branch",n)==0 ){
    fossil_fatal("the \"fossil tag branch\" command is discontinued\n"
                 "Use the \"fossil branch new\" command instead.");
  }else

  if( strncmp(g.argv[2],"cancel",n)==0 ){
    int dryRun = 0;
    int fRaw = find_option("raw","",0)!=0;
    const char *zPrefix = fRaw ? "" : "sym-";
    const char *zPrefix = "";
    const char *zDateOvrd = find_option("date-override",0,1);
    const char *zUserOvrd = find_option("user-override",0,1);
    const char *zTag;
    const char *zObjId;
    int objType;
    if( find_option("dryrun","n",0)!=0 ) dryRun = TAG_ADD_DRYRUN;
    if( g.argc!=5 ){
      usage("cancel ?options? TAGNAME CHECK-IN");
      usage("cancel ?options? TAGNAME ARTIFACT-ID");
    }
    zTag = g.argv[3];
    tag_cmd_tagname_check(zTag);
    zObjId = g.argv[4];
    objType = whatis_rid_type(symbolic_name_to_rid(zObjId, 0));
    switch(objType){
      case 0:
        fossil_fatal("Cannot resolve artifact ID: %s", zObjId);
        break;
      case CFTYPE_MANIFEST:
        zPrefix = fRaw ? "" : "sym-";
        break;
      default: break;
    }
    db_begin_transaction();
    tag_add_artifact(zPrefix, g.argv[3], g.argv[4], 0, dryRun,
    tag_add_artifact(zPrefix, zTag, zObjId, 0, dryRun,
                     zDateOvrd, zUserOvrd);
    db_end_transaction(0);
  }else

  if( strncmp(g.argv[2],"find",n)==0 ){
    Stmt q;
    int fRaw = find_option("raw","",0)!=0;