* safe_remove exported and moved to MatitaMisc

[helm.git] / helm / matita / matitaDb.ml

diff --git a/helm/matita/matitaDb.ml b/helm/matita/matitaDb.ml
index 878bd4fe7656dbeba5326b572967d666643a86c5..0c10a81e855463ce12ca15b3dac8e407854dc0ce 100644 (file)
--- a/helm/matita/matitaDb.ml
+++ b/helm/matita/matitaDb.ml
@@ -37,6 +37,7 @@ let instance =
 
 
 let xpointer_RE = Pcre.regexp "#.*$"
+let file_scheme_RE = Pcre.regexp "^file://"
 
 let clean_owner_environment () =
   let dbd = instance () in
@@ -65,7 +66,7 @@ let clean_owner_environment () =
     (fun uri ->
       let uri = Pcre.replace ~rex:xpointer_RE ~templ:"" uri in
       List.iter
-        (fun suffix -> Http_getter.unregister (uri ^ suffix))
+        (fun suffix -> MatitaMisc.safe_remove (uri ^ suffix ^ ".xml.gz"))
         [""; ".body"; ".types"])
     owned_uris;
   List.iter (fun statement -> 
@@ -109,7 +110,7 @@ let create_owner_environment () =
 (* removes uri from the ownerized tables, and returns the list of other objects
  * (theyr uris) that ref the one removed. 
  * AFAIK there is no need to return it, since the MatitaTypes.staus should
- * contain all defined objects. but to double ckeck we do not garbage the
+ * contain all defined objects. but to double check we do not garbage the
  * metadata...
  *)
 let remove_uri uri =
@@ -135,20 +136,31 @@ let remove_uri uri =
   [obj_tbl;sort_tbl;rel_tbl;name_tbl;(*conclno_tbl;conclno_hyp_tbl*)count_tbl];
   (* and now the debug job *)  
   let dbg_q = 
-    sprintf "SELECT source FROM %s WHERE h_occurrence LIKE '%s%%'" obj_tbl suri
+    sprintf "SELECT source FROM %s WHERE h_occurrence LIKE '%s%%'" obj_tbl
+    (Mysql.escape suri)
   in
   try 
     let rc = Mysql.exec dbd dbg_q in
     let l = ref [] in
     Mysql.iter rc (fun a -> match a.(0) with None ->()|Some a -> l := a:: !l);
     let l = List.sort Pervasives.compare !l in
-    let rec uniq = function 
-      | [] -> []
-      | h::[] -> [h]
-      | h1::h2::tl when h1 = h2 -> uniq (h2 :: tl) 
-      | h1::tl (* when h1 <> h2 *) -> h1 :: uniq tl
-    in
-    uniq l
+    MatitaMisc.list_uniq l
   with
     exn -> raise exn (* no errors should be accepted *)
 
+let xpointers_of_ind uri =
+  let dbd = instance () in
+  let name_tbl =  MetadataTypes.name_tbl () in
+  let query = sprintf 
+    "SELECT source FROM %s WHERE source LIKE '%s#xpointer%%'" name_tbl 
+      (Mysql.escape (UriManager.string_of_uri uri))
+  in
+  let rc = Mysql.exec dbd query in
+  let l = ref [] in
+  Mysql.iter rc (fun a ->  match a.(0) with None ->()|Some a -> l := a:: !l);
+  List.map UriManager.uri_of_string !l
+
+let reset_owner_environment () =
+  clean_owner_environment ();
+  create_owner_environment ()
+