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 suri) l in
45 DisambiguateTypes.env_of_list l' env
48 let add_aliases_for_inductive_def status types suri =
49 let uri = UriManager.uri_of_string suri in
50 (* aliases for the constructors and types *)
51 let aliases = env_of_list (extract_alias types uri) status.aliases in
52 (* aliases for the eliminations principles *)
53 let base = String.sub suri 0 (String.length suri - 4) in
59 fun (uri,_) -> UriManager.string_of_uri uri = base ^ suffix
61 let u = base ^ suffix in
62 (UriManager.name_of_uri (UriManager.uri_of_string u),u)::acc
65 ) [] ["_ind.con";"_rec.con";"_rec_t.con"]) aliases
67 {status with aliases = aliases }
70 let add_aliases_for_inductive_def status types suri =
71 let uri = UriManager.uri_of_string suri in
72 let aliases = env_of_list (extract_alias types uri) status.aliases in
73 {status with aliases = aliases }
75 let add_alias_for_constant status suri =
76 let uri = UriManager.uri_of_string suri in
77 let name = UriManager.name_of_uri uri in
78 let new_env = env_of_list [(name,suri)] status.aliases in
79 {status with aliases = new_env }
81 let add_aliases_for_object status suri =
83 Cic.InductiveDefinition (types,_,_,_) ->
84 add_aliases_for_inductive_def status types suri
85 | Cic.Constant _ -> add_alias_for_constant status suri
87 | Cic.CurrentProof _ -> assert false
89 let paths_and_uris_of_obj uri status =
90 let basedir = get_string_option status "basedir" in
91 let innertypesuri = UriManager.innertypesuri_of_uri uri in
92 let bodyuri = UriManager.bodyuri_of_uri uri in
93 let innertypesfilename = Str.replace_first (Str.regexp "^cic:") ""
94 (UriManager.string_of_uri innertypesuri) ^ ".xml.gz" in
95 let innertypespath = basedir ^ "/" ^ innertypesfilename in
96 let xmlfilename = Str.replace_first (Str.regexp "^cic:/") ""
97 (UriManager.string_of_uri uri) ^ ".xml.gz" in
98 let xmlpath = basedir ^ "/" ^ xmlfilename in
99 let xmlbodyfilename = Str.replace_first (Str.regexp "^cic:/") ""
100 (UriManager.string_of_uri uri) ^ ".body.xml.gz" in
101 let xmlbodypath = basedir ^ "/" ^ xmlbodyfilename in
102 xmlpath, xmlbodypath, innertypespath, bodyuri, innertypesuri
104 let save_object_to_disk status uri obj =
105 let ensure_path_exists path =
106 let dir = Filename.dirname path in
109 (* generate annobj, ids_to_inner_sorts and ids_to_inner_types *)
110 let annobj,_,_,ids_to_inner_sorts,ids_to_inner_types,_,_ =
111 Cic2acic.acic_object_of_cic_object ~eta_fix:false obj
115 Cic2Xml.print_object uri ~ids_to_inner_sorts ~ask_dtd_to_the_getter:false
119 Cic2Xml.print_inner_types uri ~ids_to_inner_sorts ~ids_to_inner_types
120 ~ask_dtd_to_the_getter:false
122 let xmlpath, xmlbodypath, innertypespath, bodyuri, innertypesuri =
123 paths_and_uris_of_obj uri status
125 let path_scheme_of path = "file://" ^ path in
126 List.iter MatitaMisc.mkdir
127 (List.map Filename.dirname [innertypespath; xmlpath]);
128 (* now write to disk *)
129 ensure_path_exists innertypespath;
130 Xml.pp ~gzip:true xmlinnertypes (Some innertypespath) ;
131 ensure_path_exists xmlpath;
132 Xml.pp ~gzip:true xml (Some xmlpath) ;
133 (* now register to the getter *)
134 Http_getter.register' innertypesuri (path_scheme_of innertypespath);
135 Http_getter.register' uri (path_scheme_of xmlpath);
136 (* we return a list of uri,path we registered/created *)
137 (uri,xmlpath) :: (innertypesuri,innertypespath) ::
138 (* now the optional body, both write and register *)
139 (match bodyxml,bodyuri with
141 | Some bodyxml,Some bodyuri->
142 ensure_path_exists xmlbodypath;
143 Xml.pp ~gzip:true bodyxml (Some xmlbodypath) ;
144 Http_getter.register' bodyuri (path_scheme_of xmlbodypath);
145 [bodyuri,xmlbodypath]
148 let unregister_if_some = function
149 | Some u -> Http_getter.unregister' u | None -> ()
151 let remove_object_from_disk uri path =
153 Http_getter.unregister' uri
155 let add_obj uri obj status =
156 let dbd = MatitaDb.instance () in
157 let suri = UriManager.string_of_uri uri in
158 if CicEnvironment.in_library uri then
159 command_error (sprintf "%s already defined" suri)
161 CicTypeChecker.typecheck_obj uri obj;
162 MetadataDb.index_obj ~dbd ~uri; (* must be in the env *)
163 let new_stuff = save_object_to_disk status uri obj in
164 MatitaLog.message (sprintf "%s defined" suri);
165 let status = add_aliases_for_object status suri obj in
166 { status with objects = new_stuff @ status.objects;
167 proof_status = No_proof }
172 type t = UriManager.uri * string
173 let compare (u1, _) (u2, _) = UriManager.compare u1 u2
176 module UriSet = Set.Make (OrderedUri)
178 (* returns the uri of objects that were added in the meanwhile...
179 * status1 ----> status2
180 * assumption: objects defined in status2 are a superset of those defined in
183 let delta_status status1 status2 =
184 let module S = UriSet in
186 let s1 = List.fold_left (fun set uri -> S.add uri set) S.empty l1 in
187 let s2 = List.fold_left (fun set uri -> S.add uri set) S.empty l2 in
188 let diff = S.diff s2 s1 in
189 S.fold (fun uri uris -> uri :: uris) diff []
191 diff status1.objects status2.objects
193 let remove_coercion uri =
194 CoercDb.remove_coercion (fun (_,_,u) -> UriManager.eq u uri)
196 let time_travel ~present ~past =
197 let list_of_objs_to_remove = List.rev (delta_status past present) in
198 (* List.rev is just for the debugging code, which otherwise may list both
199 * something.ind and something.ind#xpointer ... (ask Enrico :-) *)
200 let debug_list = ref [] in
201 List.iter (fun (uri,p) ->
202 remove_object_from_disk uri p;
205 CicEnvironment.remove_obj uri
206 with CicEnvironment.Object_not_found _ ->
208 (sprintf "time_travel removes from cache %s that is not in"
209 (UriManager.string_of_uri uri)));
210 let l = MatitaDb.remove_uri uri in
211 debug_list := UriManager.string_of_uri uri :: !debug_list @ l)
212 list_of_objs_to_remove;
214 (* this is debug code
215 * idea: debug_list is the list of objects to be removed as computed from the
216 * db, while list_of_objs_to_remove is the same list but computer from the
217 * differences between statuses *)
218 let l1 = List.sort Pervasives.compare !debug_list in
219 let l2 = List.sort Pervasives.compare
220 (List.map (fun (x,_) -> UriManager.string_of_uri x) list_of_objs_to_remove)
222 let rec uniq = function
225 | h1::h2::tl when h1 = h2 -> uniq (h2 :: tl)
226 | h1::tl (* when h1 <> h2 *) -> h1 :: uniq tl
231 List.iter2 (fun x y -> if x <> y then raise Exit) l1 l2
233 | Invalid_argument _ | Exit ->
234 MatitaLog.debug "It seems you garbaged something...";
235 MatitaLog.debug "l1:";
236 List.iter MatitaLog.debug l1;
237 MatitaLog.debug "l2:";
238 List.iter MatitaLog.debug l2
240 let alias_diff ~from status =
241 let module Map = DisambiguateTypes.Environment in
243 (fun domain_item codomain_item acc ->
244 if not (Map.mem domain_item from.aliases) then
245 Map.add domain_item codomain_item acc
248 status.aliases Map.empty