1 (* Copyright (C) 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/
29 let debug_prerr = if debug then prerr_endline else ignore
31 module HGT = Http_getter_types;;
32 module HG = Http_getter;;
33 module HGM = Http_getter_misc;;
34 module UM = UriManager;;
35 module TA = GrafiteAst;;
37 let cache_of_processed_baseuri = Hashtbl.create 1024
39 let one_step_depend suri =
42 UM.buri_of_uri (UM.uri_of_string suri)
43 with UM.IllFormedUri _ -> suri
45 if Hashtbl.mem cache_of_processed_baseuri buri then
49 Hashtbl.add cache_of_processed_baseuri buri true;
51 let buri = buri ^ "/" in
52 let buri = HMysql.escape buri in
53 let obj_tbl = MetadataTypes.obj_tbl () in
55 "SELECT source, h_occurrence FROM %s WHERE h_occurrence LIKE '%s%%'"
59 let rc = HMysql.exec (MatitaDb.instance ()) query in
63 match row.(0), row.(1) with
64 | Some uri, Some occ when Filename.dirname occ = buri ->
67 let l = List.sort Pervasives.compare !l in
70 exn -> raise exn (* no errors should be accepted *)
73 let safe_buri_of_suri suri =
75 UM.buri_of_uri (UM.uri_of_string suri)
77 UM.IllFormedUri _ -> suri
79 let close_uri_list uri_to_remove =
80 (* to remove an uri you have to remove the whole script *)
83 (List.fast_sort Pervasives.compare
84 (List.map safe_buri_of_suri uri_to_remove))
86 (* cleand the already visided baseuris *)
90 if Hashtbl.mem cache_of_processed_baseuri buri then false
94 (* now calculate the list of objects that belong to these baseuris *)
99 let inhabitants = HG.ls (buri ^ "/") in
100 let inhabitants = List.filter
101 (function HGT.Ls_object _ -> true | _ -> false)
104 let inhabitants = List.map
106 | HGT.Ls_object e -> buri ^ "/" ^ e.HGT.uri
112 with HGT.Invalid_URI u ->
113 MatitaLog.error ("We were listing an invalid buri: " ^ u);
116 (* now we want the list of all uri that depend on them *)
119 (fun acc u -> one_step_depend u @ acc) [] uri_to_remove
122 HExtlib.list_uniq (List.fast_sort Pervasives.compare depend)
124 uri_to_remove, depend
126 let rec close uris next =
129 | l -> let uris, next = close_uri_list l in close uris next @ uris
131 let cleaned_no = ref 0;;
133 let clean_baseuris ?(verbose=true) buris =
134 Hashtbl.clear cache_of_processed_baseuri;
135 let buris = List.map HGM.strip_trailing_slash buris in
136 debug_prerr "clean_baseuris called on:";
138 List.iter debug_prerr buris;
139 let l = close [] buris in
140 let l = HExtlib.list_uniq (List.fast_sort Pervasives.compare l) in
141 let l = List.map UriManager.uri_of_string l in
142 debug_prerr "clean_baseuri will remove:";
144 List.iter (fun u -> debug_prerr (UriManager.string_of_uri u)) l;
147 MatitaMisc.safe_remove (MatitaMisc.obj_file_of_baseuri buri))
148 cache_of_processed_baseuri;
149 List.iter (MatitaSync.remove ~verbose) l;
150 cleaned_no := !cleaned_no + List.length l;
151 if !cleaned_no > 30 then
156 ignore (HMysql.exec (MatitaDb.instance ()) ("OPTIMIZE TABLE " ^ table)))
157 [MetadataTypes.name_tbl (); MetadataTypes.rel_tbl ();
158 MetadataTypes.sort_tbl (); MetadataTypes.obj_tbl();
159 MetadataTypes.count_tbl()]