]> git.lizzy.rs Git - dragonfireclient.git/blob - builtin/modmgr.lua
Fix bug in world creation
[dragonfireclient.git] / builtin / modmgr.lua
1 --Minetest
2 --Copyright (C) 2013 sapier
3 --
4 --This program is free software; you can redistribute it and/or modify
5 --it under the terms of the GNU Lesser General Public License as published by
6 --the Free Software Foundation; either version 2.1 of the License, or
7 --(at your option) any later version.
8 --
9 --This program is distributed in the hope that it will be useful,
10 --but WITHOUT ANY WARRANTY; without even the implied warranty of
11 --MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 --GNU Lesser General Public License for more details.
13 --
14 --You should have received a copy of the GNU Lesser General Public License along
15 --with this program; if not, write to the Free Software Foundation, Inc.,
16 --51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17
18 --------------------------------------------------------------------------------
19 function get_mods(path,retval,modpack)
20
21         local mods = engine.get_dirlist(path,true)
22         for i=1,#mods,1 do
23                 local toadd = {}
24                 local modpackfile = nil
25                 
26                 toadd.name              = mods[i]
27                 toadd.path              = path .. DIR_DELIM .. mods[i] .. DIR_DELIM
28                 if modpack ~= nil and
29                         modpack ~= "" then
30                         toadd.modpack   = modpack
31                 else
32                         local filename = path .. DIR_DELIM .. mods[i] .. DIR_DELIM .. "modpack.txt"
33                         local error = nil
34                         modpackfile,error = io.open(filename,"r")
35                 end
36                         
37                 if modpackfile ~= nil then
38                         modpackfile:close()
39                         toadd.is_modpack = true
40                         table.insert(retval,toadd)
41                         get_mods(path .. DIR_DELIM .. mods[i],retval,mods[i])
42                 else
43                         table.insert(retval,toadd)
44                 end
45         end
46 end
47
48 --modmanager implementation
49 modmgr = {}
50
51 --------------------------------------------------------------------------------
52 function modmgr.extract(modfile)
53         if modfile.type == "zip" then
54                 local tempfolder = os.tempfolder()
55                 
56                 if tempfolder ~= nil and
57                         tempfodler ~= "" then
58                         engine.create_dir(tempfolder)
59                         engine.extract_zip(modfile.name,tempfolder)
60                         return tempfolder
61                 end
62         end
63 end
64
65 -------------------------------------------------------------------------------
66 function modmgr.getbasefolder(temppath)
67
68         if temppath == nil then
69                 return {
70                 type = "invalid",
71                 path = ""
72                 }
73         end
74
75         local testfile = io.open(temppath .. DIR_DELIM .. "init.lua","r")
76         if testfile ~= nil then
77                 testfile:close()
78                 return {
79                                 type="mod",
80                                 path=temppath
81                                 }
82         end
83         
84         testfile = io.open(temppath .. DIR_DELIM .. "modpack.txt","r")
85         if testfile ~= nil then
86                 testfile:close()
87                 return {
88                                 type="modpack",
89                                 path=temppath
90                                 }
91         end
92         
93         local subdirs = engine.get_dirlist(temppath,true)
94         
95         --only single mod or modpack allowed
96         if #subdirs ~= 1 then
97                 return {
98                         type = "invalid",
99                         path = ""
100                         }
101         end
102
103         testfile = 
104         io.open(temppath .. DIR_DELIM .. subdirs[1] ..DIR_DELIM .."init.lua","r")
105         if testfile ~= nil then
106                 testfile:close()
107                 return {
108                         type="mod",
109                         path= temppath .. DIR_DELIM .. subdirs[1]
110                         }
111         end
112         
113         testfile = 
114         io.open(temppath .. DIR_DELIM .. subdirs[1] ..DIR_DELIM .."modpack.txt","r")
115         if testfile ~= nil then
116                 testfile:close()
117                 return {
118                         type="modpack",
119                         path=temppath ..  DIR_DELIM .. subdirs[1]
120                         }
121         end
122
123         return {
124                 type = "invalid",
125                 path = ""
126                 }
127 end
128
129 --------------------------------------------------------------------------------
130 function modmgr.isValidModname(modpath)
131         if modpath:find("-") ~= nil then
132                 return false
133         end
134         
135         return true
136 end
137
138 --------------------------------------------------------------------------------
139 function modmgr.parse_register_line(line)
140         local pos1 = line:find("\"")
141         local pos2 = nil
142         if pos1 ~= nil then
143                 pos2 = line:find("\"",pos1+1)
144         end
145         
146         if pos1 ~= nil and pos2 ~= nil then
147                 local item = line:sub(pos1+1,pos2-1)
148                 
149                 if item ~= nil and
150                         item ~= "" then
151                         local pos3 = item:find(":")
152                         
153                         if pos3 ~= nil then
154                                 local retval = item:sub(1,pos3-1)
155                                 if retval ~= nil and
156                                         retval ~= "" then
157                                         return retval
158                                 end 
159                         end
160                 end
161         end
162         return nil
163 end
164
165 --------------------------------------------------------------------------------
166 function modmgr.parse_dofile_line(modpath,line)
167         local pos1 = line:find("\"")
168         local pos2 = nil
169         if pos1 ~= nil then
170                 pos2 = line:find("\"",pos1+1)
171         end
172         
173         if pos1 ~= nil and pos2 ~= nil then
174                 local filename = line:sub(pos1+1,pos2-1)
175                 
176                 if filename ~= nil and
177                         filename ~= "" and
178                         filename:find(".lua") then
179                         return modmgr.identify_modname(modpath,filename)
180                 end
181         end
182         return nil
183 end
184
185 --------------------------------------------------------------------------------
186 function modmgr.identify_modname(modpath,filename)
187         local testfile = io.open(modpath .. DIR_DELIM .. filename,"r")
188         if testfile ~= nil then
189                 local line = testfile:read()
190                 
191                 while line~= nil do
192                         local modname = nil
193                 
194                         if line:find("minetest.register_tool") then
195                                 modname = modmgr.parse_register_line(line)
196                         end
197                         
198                         if line:find("minetest.register_craftitem") then
199                                 modname = modmgr.parse_register_line(line)
200                         end
201                         
202                         
203                         if line:find("minetest.register_node") then
204                                 modname = modmgr.parse_register_line(line)
205                         end
206                         
207                         if line:find("dofile") then
208                                 modname = modmgr.parse_dofile_line(modpath,line)
209                         end
210                 
211                         if modname ~= nil then
212                                 testfile:close()
213                                 return modname
214                         end
215                         
216                         line = testfile:read()
217                 end
218                 testfile:close()
219         end
220         
221         return nil
222 end
223
224 --------------------------------------------------------------------------------
225 function modmgr.tab()
226
227         if modmgr.global_mods == nil then
228                 modmgr.refresh_globals()
229         end
230
231         if modmgr.selected_mod == nil then
232                 modmgr.selected_mod = 1
233         end
234         
235         local retval = 
236                 "vertlabel[0,-0.25;MODS]" ..
237                 "label[0.8,-0.25;Installed Mods:]" ..
238                 "textlist[0.75,0.25;4.5,4.3;modlist;" ..
239                 modmgr.render_modlist(modmgr.global_mods) .. 
240                 ";" .. modmgr.selected_mod .. "]"
241
242         retval = retval ..
243                 "button[1,4.85;2,0.5;btn_mod_mgr_install_local;Install]" ..
244                 "button[3,4.85;2,0.5;btn_mod_mgr_download;Download]"
245                 
246         local selected_mod = nil
247                 
248         if filterlist.size(modmgr.global_mods) >= modmgr.selected_mod then
249                 selected_mod = filterlist.get_list(modmgr.global_mods)[modmgr.selected_mod]
250         end
251         
252         if selected_mod ~= nil then
253                 if selected_mod.is_modpack then
254                         retval = retval .. "button[10,4.85;2,0.5;btn_mod_mgr_rename_modpack;Rename]"
255                 else
256                 --show dependencies
257                         retval = retval .. 
258                                 "label[6,1.9;Depends:]" ..
259                                 "textlist[6,2.4;5.7,2;deplist;"
260                                 
261                         toadd = modmgr.get_dependencies(selected_mod.path)
262                         
263                         retval = retval .. toadd .. ";0;true,false]"
264                         
265                         --TODO read modinfo
266                 end
267                 --show delete button
268                 retval = retval .. "button[8,4.85;2,0.5;btn_mod_mgr_delete_mod;Delete]"
269         end
270         return retval
271 end
272
273 --------------------------------------------------------------------------------
274 function modmgr.dialog_rename_modpack()
275
276         local mod = filterlist.get_list(modmgr.modlist)[modmgr.selected_mod]
277         
278         local retval = 
279                 "label[1.75,1;Rename Modpack:]"..
280                 "field[4.5,1.4;6,0.5;te_modpack_name;;" ..
281                 mod.name ..
282                 "]" ..
283                 "button[5,4.2;2.6,0.5;dlg_rename_modpack_confirm;Accept]" ..
284                 "button[7.5,4.2;2.8,0.5;dlg_rename_modpack_cancel;Cancel]"
285
286         return retval
287 end
288
289 --------------------------------------------------------------------------------
290 function modmgr.precheck()
291
292         if modmgr.world_config_selected_world == nil then
293                 modmgr.world_config_selected_world = 1
294         end
295         
296         if modmgr.world_config_selected_mod == nil then
297                 modmgr.world_config_selected_mod = 1
298         end
299         
300         if modmgr.hide_gamemods == nil then
301                 modmgr.hide_gamemods = true
302         end
303         
304         if modmgr.hide_modpackcontents == nil then
305                 modmgr.hide_modpackcontents = true
306         end
307 end
308
309 --------------------------------------------------------------------------------
310 function modmgr.render_modlist(render_list)
311         local retval = ""
312         
313         if render_list == nil then
314                 if modmgr.global_mods == nil then
315                         modmgr.refresh_globals()
316                 end
317                 render_list = modmgr.global_mods
318         end
319         
320         local list = filterlist.get_list(render_list)
321         local last_modpack = nil
322         
323         for i,v in ipairs(list) do
324                 if retval ~= "" then
325                         retval = retval ..","
326                 end
327                 
328                 if v.is_modpack then
329                         local rawlist = filterlist.get_raw_list(render_list)
330                         
331                         local all_enabled = true
332                         for j=1,#rawlist,1 do
333                                 if rawlist[j].modpack == list[i].name and
334                                         rawlist[j].enabled ~= true then
335                                                 all_enabled = false
336                                                 break
337                                 end
338                         end
339                         
340                         if all_enabled == false then
341                                 retval = retval .. mt_color_grey
342                         else
343                                 retval = retval .. mt_color_dark_green
344                         end
345                 end
346                 
347                 if v.typ == "game_mod" then
348                         retval = retval .. mt_color_blue
349                 else
350                         if v.enabled then
351                                 retval = retval .. mt_color_green
352                         end
353                 end
354                 if v.modpack  ~= nil then
355                         retval = retval .. "    "
356                 end
357                 retval = retval .. v.name
358         end
359         
360         return retval
361 end
362
363 --------------------------------------------------------------------------------
364 function modmgr.dialog_configure_world()
365         modmgr.precheck()
366         
367         local worldspec = engine.get_worlds()[modmgr.world_config_selected_world]
368         local mod = filterlist.get_list(modmgr.modlist)[modmgr.world_config_selected_mod]
369         
370         local retval =
371                 "size[11,6.5]" ..
372                 "label[1.5,-0.25;World: " .. worldspec.name .. "]"
373                 
374         if modmgr.hide_gamemods then
375                 retval = retval .. "checkbox[0,5.75;cb_hide_gamemods;Hide Game;true]"
376         else
377                 retval = retval .. "checkbox[0,5.75;cb_hide_gamemods;Hide Game;false]"
378         end
379         
380         if modmgr.hide_modpackcontents then
381                 retval = retval .. "checkbox[2,5.75;cb_hide_mpcontent;Hide mp content;true]"
382         else
383                 retval = retval .. "checkbox[2,5.75;cb_hide_mpcontent;Hide mp content;false]"
384         end
385         
386         if mod == nil then
387                 mod = {name=""}
388         end
389         retval = retval ..
390                 "label[0,0.45;Mod:]" ..
391                 "label[0.75,0.45;" .. mod.name .. "]" ..
392                 "label[0,1;Depends:]" ..
393                 "textlist[0,1.5;5,4.25;world_config_depends;" ..
394                 modmgr.get_dependencies(mod.path) .. ";0]" ..
395                 "button[9.25,6.35;2,0.5;btn_config_world_save;Save]" ..
396                 "button[7.4,6.35;2,0.5;btn_config_world_cancel;Cancel]"
397         
398         if engine.setting_get("old_style_mod_selection") == "true" then
399                 local selected = engine.get_textlist_index("world_config_modlist")
400                 local mod = filterlist.get_list(modmgr.modlist)[selected]
401                 
402                 if mod ~= nil then
403                         if mod.is_modpack then
404                                 local rawlist = filterlist.get_raw_list(modmgr.modlist)
405                                 
406                                 local all_enabled = true
407                                 for j=1,#rawlist,1 do
408                                         if rawlist[j].modpack == mod.name and
409                                                 rawlist[j].enabled ~= true then
410                                                         all_enabled = false
411                                                         break
412                                         end
413                                 end
414                                 
415                                 if all_enabled == false then
416                                         retval = retval .. "button[5.5,-0.125;2,0.5;btn_mp_enable;Enable MP]"
417                                 else
418                                         retval = retval .. "button[5.5,-0.125;2,0.5;btn_mp_disable;Disable MP]"
419                                 end
420                         else
421                                 if mod.enabled then
422                                         retval = retval .. "checkbox[5.5,-0.375;cb_mod_enable;enabled;true]"
423                                 else
424                                         retval = retval .. "checkbox[5.5,-0.375;cb_mod_enable;enabled;false]"
425                                 end
426                         end
427                 
428                 end
429                 
430                 retval = retval ..
431                         "button[8.5,-0.125;2.5,0.5;btn_all_mods;Enable all]"
432         else
433                 retval = retval ..
434                 "button[5.5,-0.125;5.75,0.5;btn_all_mods;Enable all Mods]"
435         end
436                 retval = retval ..
437                 "textlist[5.5,0.5;5.5,5.75;world_config_modlist;"
438                 
439
440         retval = retval .. modmgr.render_modlist(modmgr.modlist)
441
442         retval = retval .. ";" .. modmgr.world_config_selected_mod .."]"
443         
444         return retval
445 end
446
447 --------------------------------------------------------------------------------
448 function modmgr.handle_buttons(tab,fields)
449
450         local retval = nil
451         
452         if tab == "mod_mgr" then
453                 retval = modmgr.handle_modmgr_buttons(fields)
454         end
455         
456         if tab == "dialog_rename_modpack" then
457                 retval = modmgr.handle_rename_modpack_buttons(fields)
458         end
459         
460         if tab == "dialog_delete_mod" then
461                 retval = modmgr.handle_delete_mod_buttons(fields)
462         end
463         
464         if tab == "dialog_configure_world" then
465                 retval = modmgr.handle_configure_world_buttons(fields)
466         end
467         
468         return retval
469 end
470
471 --------------------------------------------------------------------------------
472 function modmgr.get_dependencies(modfolder)
473         local toadd = ""
474         if modfolder ~= nil then
475                 local filename = modfolder ..
476                                         DIR_DELIM .. "depends.txt"
477         
478                 local dependencyfile = io.open(filename,"r")
479                 
480                 if dependencyfile then
481                         local dependency = dependencyfile:read("*l")
482                         while dependency do
483                                 if toadd ~= "" then     
484                                         toadd = toadd .. ","
485                                 end
486                                 toadd = toadd .. dependency
487                                 dependency = dependencyfile:read()
488                         end
489                         dependencyfile:close()
490                 end
491         end
492
493         return toadd
494 end
495
496
497 --------------------------------------------------------------------------------
498 function modmgr.get_worldconfig(worldpath)
499         local filename = worldpath ..
500                                 DIR_DELIM .. "world.mt"
501
502         local worldfile = io.open(filename,"r")
503         
504         local worldconfig = {}
505         worldconfig.global_mods = {}
506         worldconfig.game_mods = {}
507         
508         if worldfile then
509                 local dependency = worldfile:read("*l")
510                 while dependency do
511                         local parts = dependency:split("=")
512
513                         local key = parts[1]:trim()
514
515                         if key == "gameid" then
516                                 worldconfig.id = parts[2]:trim()
517                         else
518                                 local key = parts[1]:trim():sub(10)
519                                 if parts[2]:trim() == "true" then
520                                         worldconfig.global_mods[key] = true
521                                 else
522                                         worldconfig.global_mods[key] = false
523                                 end
524                         end
525                         dependency = worldfile:read("*l")
526                 end
527                 worldfile:close()
528         else
529                 print("Modmgr: " .. filename .. " not found")
530         end
531         
532         --read gamemods
533         local gamemodpath = engine.get_gamepath() .. DIR_DELIM .. worldconfig.id .. DIR_DELIM .. "mods"
534         
535         get_mods(gamemodpath,worldconfig.game_mods)
536
537         return worldconfig
538 end
539 --------------------------------------------------------------------------------
540 function modmgr.handle_modmgr_buttons(fields)
541         local retval = {
542                         tab = nil,
543                         is_dialog = nil,
544                         show_buttons = nil,
545                 }
546
547         if fields["modlist"] ~= nil then
548                 local event = explode_textlist_event(fields["modlist"])
549                 modmgr.selected_mod = event.index
550         end
551         
552         if fields["btn_mod_mgr_install_local"] ~= nil then
553                 engine.show_file_open_dialog("mod_mgt_open_dlg","Select Mod File:")
554         end
555         
556         if fields["btn_mod_mgr_download"] ~= nil then
557                 retval.current_tab = "dialog_modstore_unsorted"
558                 retval.is_dialog = true
559                 retval.show_buttons = false
560                 return retval
561         end
562         
563         if fields["btn_mod_mgr_rename_modpack"] ~= nil then
564                 retval.current_tab = "dialog_rename_modpack"
565                 retval.is_dialog = true
566                 retval.show_buttons = false
567                 return retval
568         end
569         
570         if fields["btn_mod_mgr_delete_mod"] ~= nil then
571                 retval.current_tab = "dialog_delete_mod"
572                 retval.is_dialog = true
573                 retval.show_buttons = false
574                 return retval
575         end
576         
577         if fields["mod_mgt_open_dlg_accepted"] ~= nil and
578                 fields["mod_mgt_open_dlg_accepted"] ~= "" then
579                 modmgr.installmod(fields["mod_mgt_open_dlg_accepted"],nil)
580         end
581         
582         return nil;
583 end
584
585 --------------------------------------------------------------------------------
586 function modmgr.installmod(modfilename,basename)
587         local modfile = modmgr.identify_filetype(modfilename)
588         local modpath = modmgr.extract(modfile)
589         
590         if modpath == nil then
591                 gamedata.errormessage = "Install Mod: file: " .. modfile.name ..
592                         "\nInstall Mod: unsupported filetype \"" .. modfile.type .. "\""
593                 return
594         end
595         
596         
597         local basefolder = modmgr.getbasefolder(modpath)
598         
599         if basefolder.type == "modpack" then
600                 local clean_path = nil
601                 
602                 if basename ~= nil then
603                         clean_path = "mp_" .. basename
604                 end
605                 
606                 if clean_path == nil then
607                         clean_path = get_last_folder(cleanup_path(basefolder.path))
608                 end
609                 
610                 if clean_path ~= nil then
611                         local targetpath = engine.get_modpath() .. DIR_DELIM .. clean_path
612                         if not engine.copy_dir(basefolder.path,targetpath) then
613                                 gamedata.errormessage = "Failed to install " .. basename .. " to " .. targetpath
614                         end
615                 else
616                         gamedata.errormessage = "Install Mod: unable to find suitable foldername for modpack " 
617                                 .. modfilename
618                 end
619         end
620         
621         if basefolder.type == "mod" then
622                 local targetfolder = basename
623                 
624                 if targetfolder == nil then
625                         targetfolder = modmgr.identify_modname(basefolder.path,"init.lua")
626                 end
627                 
628                 --if heuristic failed try to use current foldername
629                 if targetfolder == nil then
630                         targetfolder = get_last_folder(basefolder.path)
631                 end     
632                 
633                 if targetfolder ~= nil and modmgr.isValidModname(targetfolder) then
634                         local targetpath = engine.get_modpath() .. DIR_DELIM .. targetfolder
635                         engine.copy_dir(basefolder.path,targetpath)
636                 else
637                         gamedata.errormessage = "Install Mod: unable to find real modname for: " 
638                                 .. modfilename
639                 end
640         end
641         
642         engine.delete_dir(modpath)
643
644         modmgr.refresh_globals()
645
646 end
647
648 --------------------------------------------------------------------------------
649 function modmgr.handle_rename_modpack_buttons(fields)
650         
651         if fields["dlg_rename_modpack_confirm"] ~= nil then
652                 local mod = filterlist.get_list(modmgr.modlist)[modmgr.selected_mod]
653                 local oldpath = engine.get_modpath() .. DIR_DELIM .. mod.name
654                 local targetpath = engine.get_modpath() .. DIR_DELIM .. fields["te_modpack_name"]
655                 engine.copy_dir(oldpath,targetpath,false)
656         end
657         
658         return {
659                 is_dialog = false,
660                 show_buttons = true,
661                 current_tab = engine.setting_get("main_menu_tab")
662                 }
663 end
664 --------------------------------------------------------------------------------
665 function modmgr.handle_configure_world_buttons(fields)
666         if fields["world_config_modlist"] ~= nil then
667                 local event = explode_textlist_event(fields["world_config_modlist"])
668                 modmgr.world_config_selected_mod = event.index
669
670                 if engine.setting_get("old_style_mod_selection") ~= "true" then
671                         if event.typ == "DCL" then
672                                 local mod = filterlist.get_list(modmgr.modlist)[event.index]
673                                 
674                                 if mod.typ == "game_mod" then
675                                         return nil
676                                 end
677                                 
678                                 if not mod.is_modpack then
679                                         mod.enabled = not mod.enabled
680                                 else
681                                         local list = filterlist.get_raw_list(modmgr.modlist)
682                                         local toset = nil
683                                         
684                                         for i=1,#list,1 do
685                                                 if list[i].modpack == mod.name then
686                                                         if toset == nil then
687                                                                 toset = not list[i].enabled
688                                                         end
689                                                         
690                                                         list[i].enabled = toset
691                                                 end
692                                         end
693                                 end
694                         end
695                 end
696         end
697         
698         if engine.setting_get("old_style_mod_selection") == "true" then
699                 if fields["cb_mod_enable"] ~= nil then
700                         local mod = filterlist.get_list(modmgr.modlist)
701                                 [engine.get_textlist_index("world_config_modlist")]
702                         if fields["cb_mod_enable"] == "true" then
703                                 mod.enabled = true
704                         else
705                                 mod.enabled = false
706                         end
707                 end
708                 
709                 if fields["btn_mp_enable"] ~= nil or 
710                         fields["btn_mp_disable"] then
711                         local mod = filterlist.get_list(modmgr.modlist)
712                                 [engine.get_textlist_index("world_config_modlist")]
713                         
714                         local toset=false
715                         if fields["btn_mp_enable"] ~= nil then
716                                 toset = true
717                         end
718                         local list = filterlist.get_raw_list(modmgr.modlist)
719                         
720                         for i=1,#list,1 do
721                                 if list[i].modpack == mod.name then
722                                         list[i].enabled = toset
723                                 end
724                         end
725                 end
726         end
727         
728         if fields["cb_hide_gamemods"] ~= nil then
729                 local current = filterlist.get_filtercriteria(modmgr.modlist)
730                 
731                 if current == nil then
732                         current = {}
733                 end
734
735                 if fields["cb_hide_gamemods"] == "true" then
736                         current.hide_game = true
737                         modmgr.hide_gamemods = true
738                 else
739                         current.hide_game = false
740                         modmgr.hide_gamemods = false
741                 end
742                 
743                 filterlist.set_filtercriteria(modmgr.modlist,current)
744         end
745         
746                 if fields["cb_hide_mpcontent"] ~= nil then
747                 local current = filterlist.get_filtercriteria(modmgr.modlist)
748                 
749                 if current == nil then
750                         current = {}
751                 end
752
753                 if fields["cb_hide_mpcontent"] == "true" then
754                         current.hide_modpackcontents = true
755                         modmgr.hide_modpackcontents = true
756                 else
757                         current.hide_modpackcontents = false
758                         modmgr.hide_modpackcontents = false
759                 end
760                 
761                 filterlist.set_filtercriteria(modmgr.modlist,current)
762         end
763         
764         if fields["btn_config_world_save"] then
765                 local worldspec = engine.get_worlds()[modmgr.world_config_selected_world]
766                 
767                 local filename = worldspec.path ..
768                                 DIR_DELIM .. "world.mt"
769
770                 local worldfile = io.open(filename,"w")
771                 
772                 if worldfile then
773                         worldfile:write("gameid = " .. modmgr.worldconfig.id .. "\n")
774                         
775                         local rawlist = filterlist.get_raw_list(modmgr.modlist)
776                         
777                         for i=1,#rawlist,1 do
778                         
779                                 if not rawlist[i].is_modpack and
780                                         rawlist[i].typ ~= "game_mod" then
781                                         if rawlist[i].enabled then
782                                                 worldfile:write("load_mod_" .. rawlist[i].name .. " = true" .. "\n")
783                                         else
784                                                 worldfile:write("load_mod_" .. rawlist[i].name .. " = false" .. "\n")
785                                         end
786                                 end
787                         end
788                         
789                         worldfile:close()
790                 else
791                         print("failed to open world config file")
792                 end
793                 
794                 modmgr.modlist = nil
795                 modmgr.worldconfig = nil
796         
797                 return {
798                         is_dialog = false,
799                         show_buttons = true,
800                         current_tab = engine.setting_get("main_menu_tab")
801                 }
802         end
803         
804         if fields["btn_config_world_cancel"] then
805         
806                 modmgr.worldconfig = nil
807                 
808                 return {
809                         is_dialog = false,
810                         show_buttons = true,
811                         current_tab = engine.setting_get("main_menu_tab")
812                 }
813         end
814         
815         if fields["btn_all_mods"] then
816                 local list = filterlist.get_raw_list(modmgr.modlist)
817                 
818                 for i=1,#list,1 do
819                         if list[i].typ ~= "game_mod" and
820                                 not list[i].is_modpack then
821                                 list[i].enabled = true
822                         end
823                 end
824         end
825         
826
827         
828         return nil
829 end
830 --------------------------------------------------------------------------------
831 function modmgr.handle_delete_mod_buttons(fields)
832         local mod = filterlist.get_list(modmgr.global_mods)[modmgr.selected_mod]
833         
834         if fields["dlg_delete_mod_confirm"] ~= nil then
835                 
836                 if mod.path ~= nil and
837                         mod.path ~= "" and
838                         mod.path ~= engine.get_modpath() then
839                         if not engine.delete_dir(mod.path) then
840                                 gamedata.errormessage ="Modmgr: failed to delete >" .. mod.path .. "<"
841                         end
842                         modmgr.refresh_globals()
843                 else
844                         gamedata.errormessage ="Modmgr: invalid modpath >" .. mod.path .. "<"
845                 end
846         end
847         
848         return {
849                 is_dialog = false,
850                 show_buttons = true,
851                 current_tab = engine.setting_get("main_menu_tab")
852                 }
853 end
854
855 --------------------------------------------------------------------------------
856 function modmgr.dialog_delete_mod()
857
858         local mod = filterlist.get_list(modmgr.global_mods)[modmgr.selected_mod]
859         
860         local retval = 
861                 "field[1.75,1;10,3;;Are you sure you want to delete ".. mod.name .. "?;]"..
862                 "button[4,4.2;1,0.5;dlg_delete_mod_confirm;Yes]" ..
863                 "button[6.5,4.2;3,0.5;dlg_delete_mod_cancel;No of course not!]"
864
865         return retval
866 end
867
868 --------------------------------------------------------------------------------
869 function modmgr.preparemodlist(data)
870         local retval = {}
871         
872         local global_mods = {}
873         local game_mods = {}
874         
875         --read global mods
876         local modpath = engine.get_modpath()
877
878         if modpath ~= nil and
879                 modpath ~= "" then
880                 get_mods(modpath,global_mods)
881         end
882         
883         for i=1,#global_mods,1 do
884                 global_mods[i].typ = "global_mod"
885                 table.insert(retval,global_mods[i])
886         end
887         
888         --read game mods
889         if data.gameid ~= nil and
890                 data.gameid ~= "" then
891                 local gamemodpath = engine.get_gamepath() .. DIR_DELIM .. data.gameid .. DIR_DELIM .. "mods"
892                 
893                 get_mods(gamemodpath,game_mods)
894         end
895         
896         for i=1,#game_mods,1 do
897                 game_mods[i].typ = "game_mod"
898                 table.insert(retval,game_mods[i])
899         end
900         
901         if data.worldpath == nil then
902                 return retval
903         end
904         
905         --read world mod configuration
906         local filename = data.worldpath ..
907                                 DIR_DELIM .. "world.mt"
908
909         local worldfile = io.open(filename,"r")
910         if worldfile then
911                 local dependency = worldfile:read("*l")
912                 while dependency do
913                         local parts = dependency:split("=")
914
915                         local key = parts[1]:trim()
916
917                         if key ~= "gameid" then
918                                 local key = parts[1]:trim():sub(10)
919                                 local element = nil
920                                 for i=1,#retval,1 do
921                                         if retval[i].name == key then
922                                                 element = retval[i]
923                                                 break
924                                         end
925                                 end
926                                 if element ~= nil then
927                                         if parts[2]:trim() == "true" then
928                                                 element.enabled = true
929                                         else
930                                                 element.enabled = false
931                                         end
932                                 else
933                                         print("Mod: " .. key .. " " .. dump(parts[2]) .. " but not found")
934                                 end
935                         end
936                         dependency = worldfile:read("*l")
937                 end
938                 worldfile:close()
939
940         end
941
942         return retval
943 end
944
945 --------------------------------------------------------------------------------
946 function modmgr.init_worldconfig()
947         modmgr.precheck()
948         local worldspec = engine.get_worlds()[modmgr.world_config_selected_world]
949         
950         if worldspec ~= nil then
951                 --read worldconfig
952                 modmgr.worldconfig = modmgr.get_worldconfig(worldspec.path)
953                 
954                 if modmgr.worldconfig.id == nil or
955                         modmgr.worldconfig.id == "" then
956                         modmgr.worldconfig = nil
957                         return false
958                 end
959                 
960                 modmgr.modlist = filterlist.create(
961                                                 modmgr.preparemodlist, --refresh
962                                                 modmgr.comparemod, --compare
963                                                 function(element,uid) --uid match
964                                                         if element.name == uid then
965                                                                 return true
966                                                         end
967                                                 end, 
968                                                 function(element,criteria)
969                                                         if criteria.hide_game and
970                                                                 element.typ == "game_mod" then
971                                                                         return false
972                                                         end
973                                                         
974                                                         if criteria.hide_modpackcontents and
975                                                                 element.modpack ~= nil then
976                                                                         return false
977                                                                 end
978                                                         return true
979                                                 end, --filter
980                                                 { worldpath= worldspec.path,
981                                                   gameid = worldspec.gameid }
982                                         )
983                                         
984                 filterlist.set_filtercriteria(modmgr.modlist, {
985                                                                         hide_game=modmgr.hide_gamemods,
986                                                                         hide_modpackcontents= modmgr.hide_modpackcontents
987                                                                         })
988                 
989                 return true     
990         end
991
992         return false
993 end
994
995 --------------------------------------------------------------------------------
996 function modmgr.comparemod(elem1,elem2)
997         if elem1 == nil or elem2 == nil then
998                 return false
999         end
1000         if elem1.name ~= elem2.name then
1001                 return false
1002         end
1003         if elem1.is_modpack ~= elem2.is_modpack then
1004                 return false
1005         end
1006         if elem1.typ ~= elem2.typ then
1007                 return false
1008         end
1009         if elem1.modpack ~= elem2.modpack then
1010                 return false
1011         end
1012         
1013         if elem1.path ~= elem2.path then
1014                 return false
1015         end
1016         
1017         return true
1018 end
1019
1020 --------------------------------------------------------------------------------
1021 function modmgr.gettab(name)
1022         local retval = ""
1023         
1024         if name == "mod_mgr" then
1025                 retval = retval .. modmgr.tab()
1026         end
1027         
1028         if name == "dialog_rename_modpack" then
1029                 retval = retval .. modmgr.dialog_rename_modpack()
1030         end
1031         
1032         if name == "dialog_delete_mod" then
1033                 retval = retval .. modmgr.dialog_delete_mod()
1034         end
1035         
1036         if name == "dialog_configure_world" then
1037                 retval = retval .. modmgr.dialog_configure_world()
1038         end
1039         
1040         return retval
1041 end
1042
1043 --------------------------------------------------------------------------------
1044 function modmgr.mod_exists(basename)
1045
1046         if modmgr.global_mods == nil then
1047                 modmgr.refresh_globals()
1048         end
1049
1050         if filterlist.raw_index_by_uid(modmgr.global_mods,basename) > 0 then
1051                 return true
1052         end
1053         
1054         return false
1055 end
1056
1057 --------------------------------------------------------------------------------
1058 function modmgr.get_global_mod(idx)
1059
1060         if modmgr.global_mods == nil then
1061                 return nil
1062         end
1063         
1064         if idx < 1 or idx > filterlist.size(modmgr.global_mods) then
1065                 return nil
1066         end
1067
1068         return filterlist.get_list(modmgr.global_mods)[idx]
1069 end
1070
1071 --------------------------------------------------------------------------------
1072 function modmgr.refresh_globals()
1073         modmgr.global_mods = filterlist.create(
1074                                         modmgr.preparemodlist, --refresh
1075                                         modmgr.comparemod, --compare
1076                                         function(element,uid) --uid match
1077                                                 if element.name == uid then
1078                                                         return true
1079                                                 end
1080                                         end, 
1081                                         nil, --filter
1082                                         {}
1083                                         )
1084 end
1085
1086 --------------------------------------------------------------------------------
1087 function modmgr.identify_filetype(name)
1088
1089         if name:sub(-3):lower() == "zip" then
1090                 return {
1091                                 name = name,
1092                                 type = "zip"
1093                                 }
1094         end
1095         
1096         if name:sub(-6):lower() == "tar.gz" or
1097                 name:sub(-3):lower() == "tgz"then
1098                 return {
1099                                 name = name,
1100                                 type = "tgz"
1101                                 }
1102         end
1103         
1104         if name:sub(-6):lower() == "tar.bz2" then
1105                 return {
1106                                 name = name,
1107                                 type = "tbz"
1108                                 }
1109         end
1110         
1111         if name:sub(-2):lower() == "7z" then
1112                 return {
1113                                 name = name,
1114                                 type = "7z"
1115                                 }
1116         end
1117
1118         return {
1119                 name = name,
1120                 type = "ukn"
1121         }
1122 end