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/
27 let debug_prerr = if debug then prerr_endline else ignore
29 module HGT = Http_getter_types;;
30 module HG = Http_getter;;
31 module HGM = Http_getter_misc;;
32 module UM = UriManager;;
33 module TA = GrafiteAst;;
35 let cache_of_processed_baseuri = Hashtbl.create 1024
37 let one_step_depend suri =
40 UM.buri_of_uri (UM.uri_of_string suri)
41 with UM.IllFormedUri _ -> suri
43 if Hashtbl.mem cache_of_processed_baseuri buri then
47 Hashtbl.add cache_of_processed_baseuri buri true;
49 let buri = buri ^ "/" in
50 let buri = Mysql.escape buri in
51 let obj_tbl = MetadataTypes.obj_tbl () in
53 "SELECT source, h_occurrence FROM %s WHERE h_occurrence LIKE '%s%%'" obj_tbl buri
56 let rc = Mysql.exec (MatitaDb.instance ()) query in
60 match row.(0), row.(1) with
61 | Some uri, Some occ when Filename.dirname occ = buri ->
64 let l = List.sort Pervasives.compare !l in
65 MatitaMisc.list_uniq l
67 exn -> raise exn (* no errors should be accepted *)
71 let safe_buri_of_suri suri =
73 UM.buri_of_uri (UM.uri_of_string suri)
75 UM.IllFormedUri _ -> suri
77 let close_uri_list uri_to_remove =
78 (* to remove an uri you have to remove the whole script *)
81 (List.fast_sort Pervasives.compare
82 (List.map safe_buri_of_suri uri_to_remove))
84 (* cleand the already visided baseuris *)
88 if Hashtbl.mem cache_of_processed_baseuri buri then false
92 (* now calculate the list of objects that belong to these baseuris *)
97 let inhabitants = HG.ls (buri ^ "/") in
98 let inhabitants = List.filter
99 (function HGT.Ls_object _ -> true | _ -> false)
102 let inhabitants = List.map
104 | HGT.Ls_object e -> buri ^ "/" ^ e.HGT.uri
110 with HGT.Invalid_URI u ->
111 MatitaLog.error ("We were listing an invalid buri: " ^ u);
114 (* now we want the list of all uri that depend on them *)
117 (fun acc u -> one_step_depend u @ acc) [] uri_to_remove
121 (List.fast_sort Pervasives.compare depend)
123 uri_to_remove, depend
125 let rec close uris next =
128 | l -> let uris, next = close_uri_list l in close uris next @ uris
130 let cleaned_no = ref 0;;
132 let clean_baseuris ?(verbose=true) buris =
133 Hashtbl.clear cache_of_processed_baseuri;
134 let buris = List.map HGM.strip_trailing_slash buris in
135 debug_prerr "clean_baseuris called on:";
137 List.iter debug_prerr buris;
138 let l = close [] buris in
139 let l = MatitaMisc.list_uniq (List.fast_sort Pervasives.compare l) in
140 let l = List.map UriManager.uri_of_string l in
141 debug_prerr "clean_baseuri will remove:";
143 List.iter (fun u -> debug_prerr (UriManager.string_of_uri u)) l;
146 MatitaMisc.safe_remove (MatitaMisc.obj_file_of_baseuri buri)
147 ) cache_of_processed_baseuri;
148 List.iter (MatitaSync.remove ~verbose) l;
149 cleaned_no := !cleaned_no + List.length l;
150 if !cleaned_no > 30 then
155 ignore (Mysql.exec (MatitaDb.instance ()) ("OPTIMIZE TABLE " ^ table)))
156 [MetadataTypes.name_tbl (); MetadataTypes.rel_tbl ();
157 MetadataTypes.sort_tbl (); MetadataTypes.obj_tbl();
158 MetadataTypes.count_tbl()]