X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Flibrary%2Flibrarian.ml;h=62a8a892c3887f5b965266e49077846456ffa227;hb=d7f3ff62899afb162cb2825af91de72fe6d8dc85;hp=8b8991bfc48f14fa8e03ed9430fd93c142f3f71b;hpb=5c474bdfb28196a7dc6009addccb47c08925887b;p=helm.git

diff --git a/helm/software/components/library/librarian.ml b/helm/software/components/library/librarian.ml
index 8b8991bfc..62a8a892c 100644
--- a/helm/software/components/library/librarian.ml
+++ b/helm/software/components/library/librarian.ml
@@ -191,7 +191,9 @@ module type Format =
     val string_of_target_object: target_object -> string
     val build: options -> source_object -> bool
     val root_and_target_of: 
-          options -> source_object -> string option * target_object
+          options -> source_object -> 
+	   (* root, writeable target, read only target *)
+	   string option * target_object * target_object
     val mtime_of_source_object: source_object -> float option
     val mtime_of_target_object: target_object -> float option
     val is_readonly_buri_of: options -> source_object -> bool
@@ -209,6 +211,10 @@ module Make = functor (F:Format) -> struct
   let fst4 = function (x,_,_,_) -> x;;
 
   let modified_before_s_t (_,cs, ct, _, _) a b = 
+(*   
+    time_stamp ("L s_t: a " ^ F.string_of_source_object a);
+    time_stamp ("L s_t: b " ^ F.string_of_target_object b);
+*)    
     let a = try Hashtbl.find cs a with Not_found -> assert false in
     let b = 
       try
@@ -222,12 +228,20 @@ module Make = functor (F:Format) -> struct
            | x -> x
       with Not_found -> assert false
     in
-    match a, b with 
+    let r = match a, b with 
        | Some a, Some b -> a <= b
        | _ -> false
-  ;;
+    in
+(*
+    time_stamp ("L s_t: " ^ string_of_bool r);
+*)
+    r
 
-  let modified_before_t_t (_,_,ct, _, _) a b = 
+  let modified_before_t_t (_,_,ct, _, _) a b =
+(*
+    time_stamp ("L t_t: a " ^ F.string_of_target_object a);
+    time_stamp ("L t_t: b " ^ F.string_of_target_object b);
+*)    
     let a = 
       try
         match Hashtbl.find ct a with
@@ -252,11 +266,19 @@ module Make = functor (F:Format) -> struct
            | x -> x
       with Not_found -> assert false
     in
-    match a, b with
-    | Some a, Some b ->
-       a <= b
-    | _ -> false
-  ;;
+    let r = match a, b with
+       | Some a, Some b ->
+(*
+       time_stamp ("tt: a " ^ string_of_float a);
+       time_stamp ("tt: b " ^ string_of_float b);
+*)
+          a <= b
+       | _ -> false
+    in
+(*
+    time_stamp ("L t_t: " ^ string_of_bool r);
+*)
+    r
 
   let rec purge_unwanted_roots wanted deps =
     let roots, rest = 
@@ -380,8 +402,10 @@ module Make = functor (F:Format) -> struct
        let r = make_one root opts okd whatd in 
        r, okt && modified_before_t_t opts tgtd tgt
     in
+    time_stamp ("L : processing " ^ str);
     try 
        let r = Hashtbl.find cc t in
+       time_stamp ("L : " ^ string_of_bool r ^ " " ^ str);
        ok && r
 (* say "already built" *)
     with Not_found ->
@@ -398,13 +422,16 @@ module Make = functor (F:Format) -> struct
 		   let res = F.build lo t in
 		   time_stamp ("L : DONE     " ^ str); res
 		end else begin
-		   HLog.warn("Read only baseuri for: "^ str); false
+		   HLog.error ("Read only baseuri for: "^ str^
+                     ", I won't compile it even if it is out of date"); 
+		   false
 		end
              | Some froot -> make froot [t]
              | None -> 
                 HLog.error ("No root for: " ^ str); false
           else false
        in
+       time_stamp ("L : " ^ string_of_bool res ^ " " ^ str);
        Hashtbl.add cc t res; ok && res
 
 (****************************************************************************)
@@ -423,11 +450,21 @@ module Make = functor (F:Format) -> struct
     let deps = 
       List.map 
         (fun (file,d) -> 
-          let r,tgt = F.root_and_target_of local_options file in
+          let r,wtgt,rotgt = F.root_and_target_of local_options file in
           Hashtbl.add caches file (F.mtime_of_source_object file);
-          Hashtbl.add cachet tgt (F.mtime_of_target_object tgt); 
-          Hashtbl.add cached file (file, d, r, tgt);
-          (file, d, r, tgt)
+	  (* if a read only target exists, we use that one, otherwise
+	     we use the writeable one that may be compiled *)
+	  let _,_,_, tgt as tuple = 
+	    match F.mtime_of_target_object rotgt with
+	    | Some _ as mtime ->
+               Hashtbl.add cachet rotgt mtime; 
+	       (file, d, r, rotgt)
+	    | None -> 
+               Hashtbl.add cachet wtgt (F.mtime_of_target_object wtgt); 
+	       (file, d, r, wtgt)
+	  in
+          Hashtbl.add cached file tuple;
+          tuple
 	)
         deps
     in