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[helm.git] / matitaB / matita / matitaFilesystem.ml

diff --git a/matitaB/matita/matitaFilesystem.ml b/matitaB/matita/matitaFilesystem.ml
index 1809627ca0a2543c607daaa0479f68b7ae434aa1..2686fff42991037c26ee03ee09a4f38388bee38e 100644 (file)
--- a/matitaB/matita/matitaFilesystem.ml
+++ b/matitaB/matita/matitaFilesystem.ml
@@ -23,6 +23,12 @@
  * http://helm.cs.unibo.it/
  *)
 
+exception SvnError of string;;
+
+let mutex = Mutex.create ();;
+
+let to_be_committed = ref [];;
+
 let exec_process cmd =
   let (stdout, stdin, stderr) as chs = Unix.open_process_full cmd [||] in
   let outlines = ref [] in
@@ -46,12 +52,106 @@ let exec_process cmd =
         errno, output ^ "\n\n" ^ errors
      | _ -> assert false))
 
+(* this should be executed only for a freshly created user
+ * so no CS is needed *)
 let checkout user =
   let rt_dir = Helm_registry.get "matita.rt_base_dir" in
   let repo = Helm_registry.get "matita.weblib" in
 
-  let errno, outstr = 
-    exec_process ("svn co " ^ repo ^ " " ^ rt_dir ^ "/" ^ user ^ "/scripts")
+  let errno, outstr = exec_process 
+    ("svn co " ^ repo ^ " " ^ rt_dir ^ "/users/" ^ user ^ "/")
+  in
+  if errno = 0 then ()
+  else raise (SvnError outstr)
+
+let html_of_library uid =
+  let i = ref 0 in
+  let newid () = incr i; ("node" ^ string_of_int !i) in
+
+  let basedir = (Helm_registry.get "matita.rt_base_dir") ^ "/users/" ^ uid in
+
+  let branch lpath children =
+    let id = newid () in
+    let name = Filename.basename lpath in
+    let name = if name <> "." then name else "cic:/matita" in
+    "<span class=\"trigger\" onClick=\"showBranch('" ^ id ^ "','" ^ lpath ^ "/')\">\n" ^
+    "<img src=\"treeview/closed.gif\" id=\"I" ^ id ^ "\"/>\n" ^
+    name ^ "<br/></span>\n" ^
+    "<span class=\"branch\" id=\"" ^ id ^ "\">\n" ^
+    children ^ "\n</span>"
+  in
+  let leaf lpath =
+    "<img src=\"treeview/doc.gif\"/>\n" ^
+    "<a href=\"javascript:void(0)\" onClick=\"selectFile('" ^ lpath ^ "')\" onDblClick=\"dialogBox.callback('" ^ lpath ^ "')\">" ^ 
+     (Filename.basename lpath) ^ "</a><br/>"
+  in
+
+  let rec aux path =
+    let lpath filename = path ^ "/" ^ filename in
+    let gpath filename = basedir ^ "/" ^ path ^ "/" ^ filename in
+    let dirlist = 
+      List.filter (fun x -> String.sub x 0 1 <> ".") 
+        (Array.to_list (Sys.readdir (basedir ^ "/" ^ path))) in
+    let subdirs = List.filter (fun x -> Sys.is_directory (gpath x)) dirlist in
+    let scripts = 
+      List.filter (fun x -> 
+        try
+          let i = String.rindex x '.' in
+          let len = String.length x - i in
+          not (Sys.is_directory (gpath x)) && 
+          (String.sub x 0 1 <> ".") && (String.sub x i len = ".ma")
+        with Not_found | Invalid_argument _ -> false) dirlist in
+    let subdirtags = 
+      String.concat "\n" (List.map (fun x -> aux (lpath x)) subdirs) in
+    let scripttags =
+      String.concat "\n" 
+       (List.map (fun x -> leaf (lpath x)) scripts)
+    in
+    branch path (subdirtags ^ "\n" ^ scripttags)
+  in
+
+  let res = aux "." in
+  prerr_endline "BEGIN TREE";prerr_endline res;prerr_endline "END TREE";
+  res
+;;
+
+let reset_lib () =
+  let to_be_removed = (Helm_registry.get "matita.rt_base_dir") ^ "/users/*" in
+  ignore (Sys.command ("rm -rf " ^ to_be_removed))
+;;
+
+(* adds a user to the commit queue; concurrent instances possible, so we
+ * enclose the update in a CS
+ *)
+let add_user uid =
+  Mutex.lock mutex;
+  to_be_committed := uid::List.filter (fun x -> x <> uid) !to_be_committed;
+  Mutex.unlock mutex;
+;;
+
+(* this function and the next one should only be called by the server itself (or
+ * the admin) at a scheduled time, so no concurrent instances and no CS needed
+ * also, svn should already be safe as far as concurrency is concerned *)
+let commit user =
+  let rt_dir = Helm_registry.get "matita.rt_base_dir" in
+  let repo = Helm_registry.get "matita.weblib" in
+
+  let errno, outstr = exec_process 
+    ("svn ci --message \"commit by user " ^ user ^ "\" " ^ rt_dir ^ "/users/" ^ user ^ "/")
   in
-  if errno = 0 then "checkout successful!"
-  else "checkout error!\n\n" ^ outstr
+  if errno = 0 then ()
+  else raise (SvnError outstr)
+
+let do_global_commit () =
+  prerr_endline ("to be committed: " ^ String.concat " " !to_be_committed);
+  List.fold_left
+    (fun acc u ->
+       try
+         commit u;
+         acc
+       with
+       | SvnError outstr -> 
+           prerr_endline outstr;
+           u::acc)
+  [] (List.rev !to_be_committed)
+;;