+++ /dev/null
-
-// huffware script: zap updater from elevators, by fred huffhines
-//
-// this script is an evil little assassin that is supposed to remove the updater
-// script from the objects it's added to. it should not remove that script from
-// any huffotronic devices though.
-// this is an attempt to quell some SL stability problems due to some seeming
-// combination of numbers of objects and numbers of scripts.
-// we hope to be able to add the updater back in automatically later because the
-// script pin should still be set. let's see if osgrid has that behavior the same
-// as second life did.
-//
-// this script is licensed by the GPL v3 which is documented at: http://www.gnu.org/licenses/gpl.html
-// do not use it in objects without fully realizing you are implicitly accepting that license.
-//
-
-
-// from hufflets...
-
-//////////////
-// huffware script: auto-retire, by fred huffhines, version 2.8.
-// distributed under BSD-like license.
-// !! keep in mind that this code must be *copied* into another
-// !! script that you wish to add auto-retirement capability to.
-// when a script has auto_retire in it, it can be dropped into an
-// object and the most recent version of the script will destroy
-// all older versions.
-//
-// the version numbers are embedded into the script names themselves.
-// the notation for versions uses a letter 'v', followed by two numbers
-// in the form "major.minor".
-// major and minor versions are implicitly considered as a floating point
-// number that increases with each newer version of the script. thus,
-// "hazmap v0.1" might be the first script in the "hazmap" script continuum,
-// and "hazmap v3.2" is a more recent version.
-//
-// example usage of the auto-retirement script:
-// default {
-// state_entry() {
-// auto_retire(); // make sure newest addition is only version of script.
-// }
-// }
-// this script is partly based on the self-upgrading scripts from markov brodsky
-// and jippen faddoul.
-//////////////
-auto_retire() {
- string self = llGetScriptName(); // the name of this script.
- list split = compute_basename_and_version(self);
- if (llGetListLength(split) != 2) return; // nothing to do for this script.
- string basename = llList2String(split, 0); // script name with no version attached.
- string version_string = llList2String(split, 1); // the version found.
- integer posn;
- // find any scripts that match the basename. they are variants of this script.
- for (posn = llGetInventoryNumber(INVENTORY_SCRIPT) - 1; posn >= 0; posn--) {
- string curr_script = llGetInventoryName(INVENTORY_SCRIPT, posn);
- if ( (curr_script != self) && (llSubStringIndex(curr_script, basename) == 0) ) {
- // found a basic match at least.
- list inv_split = compute_basename_and_version(curr_script);
- if (llGetListLength(inv_split) == 2) {
- // see if this script is more ancient.
- string inv_version_string = llList2String(inv_split, 1); // the version found.
- // must make sure that the retiring script is completely the identical basename;
- // just matching in the front doesn't make it a relative.
- if ( (llList2String(inv_split, 0) == basename)
- && ((float)inv_version_string < (float)version_string) ) {
- // remove script with same name from inventory that has inferior version.
- llRemoveInventory(curr_script);
- }
- }
- }
- }
-}
-//
-// separates the base script name and version number. used by auto_retire.
-list compute_basename_and_version(string to_chop_up)
-{
- // minimum script name is 2 characters plus a version.
- integer space_v_posn;
- // find the last useful space and 'v' combo.
- for (space_v_posn = llStringLength(to_chop_up) - 3;
- (space_v_posn >= 2) && (llGetSubString(to_chop_up, space_v_posn, space_v_posn + 1) != " v");
- space_v_posn--) {
- // look for space and v but do nothing else.
- }
- if (space_v_posn < 2) return []; // no space found.
- // now we zoom through the stuff after our beloved v character and find any evil
- // space characters, which are most likely from SL having found a duplicate item
- // name and not so helpfully renamed it for us.
- integer indy;
- for (indy = llStringLength(to_chop_up) - 1; indy > space_v_posn; indy--) {
- if (llGetSubString(to_chop_up, indy, indy) == " ") {
- // found one; zap it. since we're going backwards we don't need to
- // adjust the loop at all.
- to_chop_up = llDeleteSubString(to_chop_up, indy, indy);
- }
- }
- string full_suffix = llGetSubString(to_chop_up, space_v_posn, -1);
- // ditch the space character for our numerical check.
- string chop_suffix = llGetSubString(full_suffix, 1, llStringLength(full_suffix) - 1);
- // strip out a 'v' if there is one.
- if (llGetSubString(chop_suffix, 0, 0) == "v")
- chop_suffix = llGetSubString(chop_suffix, 1, llStringLength(chop_suffix) - 1);
- // if valid floating point number and greater than zero, that works for our version.
- string basename = to_chop_up; // script name with no version attached.
- if ((float)chop_suffix > 0.0) {
- // this is a big success right here.
- basename = llGetSubString(to_chop_up, 0, -llStringLength(full_suffix) - 1);
- return [ basename, chop_suffix ];
- }
- // seems like we found nothing useful.
- return [];
-}
-//
-//////////////
-
-// returns the index of the first occurrence of "pattern" inside
-// the "full_string". if it is not found, then a negative number is returned.
-integer find_substring(string full_string, string pattern)
-{ return llSubStringIndex(llToLower(full_string), llToLower(pattern)); }
-
-// returns TRUE if the "prefix" string is the first part of "compare_with".
-integer is_prefix(string compare_with, string prefix)
-{ return find_substring(compare_with, prefix) == 0; }
-
-// returns true if this object is a huffotronic updater of some sort.
-integer inside_of_updater()
-{
- return find_substring(llGetObjectName(), "huffotronic") >= 0;
-}
-
-// stops all the scripts besides this one.
-knock_around_other_scripts(integer running_state)
-{
- integer indy;
- integer insider = inside_of_updater();
- string self_script = llGetScriptName();
- // we set all other scripts to the running state requested.
- for (indy = 0; indy < llGetInventoryNumber(INVENTORY_SCRIPT); indy++) {
- string curr_script = llGetInventoryName(INVENTORY_SCRIPT, indy);
- if ( (curr_script != self_script)
- && (!insider || matches_server_script(curr_script)) ) {
- // this one seems ripe for being set to the state requested.
- llSetScriptState(curr_script, running_state);
- }
- }
-}
-
-string SERVER_SCRIPT = "huffotronic update server";
- // the prefix of our server script that hands out updates.
-
-// returns true if a script is a version of our update server.
-integer matches_server_script(string to_check)
-{
- return is_prefix(to_check, SERVER_SCRIPT);
-}
-
-// end hufflets.
-//////////////
-
-default
-{
- state_entry()
- {
- auto_retire();
- if (inside_of_updater()) return; // do nothing else.
-
- llWhisper(0, "hello, i'm jeeves. pleased to meet you.");
- llSleep(32);
-
- string gotta_zap = "huff-update client v";
- integer i;
- for (i = llGetInventoryNumber(INVENTORY_SCRIPT) - 1; i >= 0; i--) {
- string cur = llGetInventoryName(INVENTORY_SCRIPT, i);
- if (is_prefix(cur, gotta_zap)) {
- llWhisper(0, "i, jeeves, will now clean out this script: " + cur);
- llRemoveInventory(cur);
- }
- }
- llSleep(14);
- knock_around_other_scripts(TRUE);
- llSleep(4);
- llWhisper(0, "i'm sorry to say sir that i now must bid you adieu, as i am removing myself from the world.");
- llSleep(1);
- llRemoveInventory(llGetScriptName());
- }
-}
-
projects / feisty_meow.git / blobdiff