1 (* Copyright (C) 2004-2005, HELM Team.
3 * This file is part of HELM, an Hypertextual, Electronic
4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
7 * HELM is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * HELM is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with HELM; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 * For details, see the HELM World-Wide-Web page,
23 * http://helm.cs.unibo.it/
30 (** given a uri and a type list (the contructors types) builds a list of pairs
31 * (name,uri) that is used to generate authomatic aliases **)
32 let extract_alias types uri =
34 fun (acc,i) (name, _, _, cl) ->
35 ((name, UriManager.string_of_uriref (uri,[i]))
38 fun (acc,j) (name,_) ->
39 (((name,UriManager.string_of_uriref (uri,[i;j])) :: acc) , j+1)
43 let env_of_list l env =
44 let l' = List.map (fun (name,suri) -> name,suri,CicUtil.term_of_uri (UriManager.uri_of_string suri)) l in
45 DisambiguateTypes.env_of_list l' env
47 let add_aliases_for_inductive_def status types suri =
48 let uri = UriManager.uri_of_string suri in
49 let aliases = env_of_list (extract_alias types uri) status.aliases in
50 {status with aliases = aliases }
52 let add_alias_for_constant status suri =
53 let uri = UriManager.uri_of_string suri in
54 let name = UriManager.name_of_uri uri in
55 let new_env = env_of_list [(name,suri)] status.aliases in
56 {status with aliases = new_env }
58 let add_aliases_for_object status suri =
60 Cic.InductiveDefinition (types,_,_,_) ->
61 add_aliases_for_inductive_def status types suri
62 | Cic.Constant _ -> add_alias_for_constant status suri
64 | Cic.CurrentProof _ -> assert false
66 let paths_and_uris_of_obj uri status =
67 let basedir = get_string_option status "basedir" in
68 let innertypesuri = UriManager.innertypesuri_of_uri uri in
69 let bodyuri = UriManager.bodyuri_of_uri uri in
70 let innertypesfilename = Str.replace_first (Str.regexp "^cic:") ""
71 (UriManager.string_of_uri innertypesuri) ^ ".xml.gz" in
72 let innertypespath = basedir ^ "/" ^ innertypesfilename in
73 let xmlfilename = Str.replace_first (Str.regexp "^cic:/") ""
74 (UriManager.string_of_uri uri) ^ ".xml.gz" in
75 let xmlpath = basedir ^ "/" ^ xmlfilename in
76 let xmlbodyfilename = Str.replace_first (Str.regexp "^cic:/") ""
77 (UriManager.string_of_uri uri) ^ ".body.xml.gz" in
78 let xmlbodypath = basedir ^ "/" ^ xmlbodyfilename in
79 xmlpath, xmlbodypath, innertypespath, bodyuri, innertypesuri
81 let save_object_to_disk status uri obj =
82 let ensure_path_exists path =
83 let dir = Filename.dirname path in
86 (* generate annobj, ids_to_inner_sorts and ids_to_inner_types *)
87 let annobj,_,_,ids_to_inner_sorts,ids_to_inner_types,_,_ =
88 Cic2acic.acic_object_of_cic_object ~eta_fix:false obj
92 Cic2Xml.print_object uri ~ids_to_inner_sorts ~ask_dtd_to_the_getter:false
96 Cic2Xml.print_inner_types uri ~ids_to_inner_sorts ~ids_to_inner_types
97 ~ask_dtd_to_the_getter:false
99 let xmlpath, xmlbodypath, innertypespath, bodyuri, innertypesuri =
100 paths_and_uris_of_obj uri status
102 let path_scheme_of path = "file://" ^ path in
103 List.iter MatitaMisc.mkdir
104 (List.map Filename.dirname [innertypespath; xmlpath]);
105 (* now write to disk *)
106 ensure_path_exists innertypespath;
107 Xml.pp ~gzip:true xmlinnertypes (Some innertypespath) ;
108 ensure_path_exists xmlpath;
109 Xml.pp ~gzip:true xml (Some xmlpath) ;
110 (* now register to the getter *)
111 Http_getter.register' innertypesuri (path_scheme_of innertypespath);
112 Http_getter.register' uri (path_scheme_of xmlpath);
113 (* we return a list of uri,path we registered/created *)
114 (uri,xmlpath) :: (innertypesuri,innertypespath) ::
115 (* now the optional body, both write and register *)
116 (match bodyxml,bodyuri with
118 | Some bodyxml,Some bodyuri->
119 ensure_path_exists xmlbodypath;
120 Xml.pp ~gzip:true bodyxml (Some xmlbodypath) ;
121 Http_getter.register' bodyuri (path_scheme_of xmlbodypath);
122 [bodyuri,xmlbodypath]
125 let remove_object_from_disk uri path =
127 Http_getter.unregister' uri
129 let add_obj uri obj status =
130 let dbd = MatitaDb.instance () in
131 let suri = UriManager.string_of_uri uri in
132 if CicEnvironment.in_library uri then
133 command_error (sprintf "%s already defined" suri)
135 CicTypeChecker.typecheck_obj uri obj;
136 MetadataDb.index_obj ~dbd ~uri; (* must be in the env *)
137 let new_stuff = save_object_to_disk status uri obj in
138 MatitaLog.message (sprintf "%s defined" suri);
139 let status = add_aliases_for_object status suri obj in
140 { status with objects = new_stuff @ status.objects;
141 proof_status = No_proof }
146 type t = UriManager.uri * string
147 let compare (u1, _) (u2, _) = UriManager.compare u1 u2
150 module UriSet = Set.Make (OrderedUri)
152 (* returns the uri of objects that were added in the meanwhile...
153 * status1 ----> status2
154 * assumption: objects defined in status2 are a superset of those defined in
157 let delta_status status1 status2 =
158 let module S = UriSet in
160 let s1 = List.fold_left (fun set uri -> S.add uri set) S.empty l1 in
161 let s2 = List.fold_left (fun set uri -> S.add uri set) S.empty l2 in
162 let diff = S.diff s2 s1 in
163 S.fold (fun uri uris -> uri :: uris) diff []
165 diff status1.objects status2.objects
167 let remove_coercion uri =
168 CoercDb.remove_coercion (fun (_,_,u) -> UriManager.eq u uri)
170 let time_travel ~present ~past =
171 let list_of_objs_to_remove = List.rev (delta_status past present) in
172 (* List.rev is just for the debugging code, which otherwise may list both
173 * something.ind and something.ind#xpointer ... (ask Enrico :-) *)
174 let debug_list = ref [] in
175 List.iter (fun (uri,p) ->
176 remove_object_from_disk uri p;
179 CicEnvironment.remove_obj uri
180 with CicEnvironment.Object_not_found _ ->
182 (sprintf "time_travel removes from cache %s that is not in"
183 (UriManager.string_of_uri uri)));
184 let l = MatitaDb.remove_uri uri in
185 debug_list := UriManager.string_of_uri uri :: !debug_list @ l)
186 list_of_objs_to_remove;
188 (* this is debug code
189 * idea: debug_list is the list of objects to be removed as computed from the
190 * db, while list_of_objs_to_remove is the same list but computer from the
191 * differences between statuses *)
192 let l1 = List.sort Pervasives.compare !debug_list in
193 let l2 = List.sort Pervasives.compare
194 (List.map (fun (x,_) -> UriManager.string_of_uri x) list_of_objs_to_remove)
196 let rec uniq = function
199 | h1::h2::tl when h1 = h2 -> uniq (h2 :: tl)
200 | h1::tl (* when h1 <> h2 *) -> h1 :: uniq tl
205 List.iter2 (fun x y -> if x <> y then raise Exit) l1 l2
207 | Invalid_argument _ | Exit ->
208 MatitaLog.debug "It seems you garbaged something...";
209 MatitaLog.debug "l1:";
210 List.iter MatitaLog.debug l1;
211 MatitaLog.debug "l2:";
212 List.iter MatitaLog.debug l2
214 let alias_diff ~from status =
215 let module Map = DisambiguateTypes.Environment in
217 (fun domain_item codomain_item acc ->
218 if not (Map.mem domain_item from.aliases) then
219 Map.add domain_item codomain_item acc
222 status.aliases Map.empty