* simplify starting interface, by giving only the name and path

* update README

README.md

@@ -13,7 +13,8 @@ NOTE: On Linux you need to install inotify-tools.
 ### Subscribe to Notifications
 
 ```erlang
-> fs:subscribe(). % the pid will receive events as messages
+> fs:start_link(fs_watcher, "/Users/5HT/synrc/fs"). % need to start the fs watcher
+> fs:subscribe(fs_watcher). % the pid will receive events as messages
 > flush(). 
 Shell got {<0.47.0>,
            {fs,file_event},
@@ -23,7 +24,7 @@ Shell got {<0.47.0>,
 ### List Events from Backend
 
 ```erlang
-> fs:known_events(). % returns events known by your current backend
+> fs:known_events(fs_watcher). % returns events known by your current backend
 [mustscansubdirs,userdropped,kerneldropped,eventidswrapped,
  historydone,rootchanged,mount,unmount,created,removed,
  inodemetamod,renamed,modified,finderinfomod,changeowner,

src/fs.erl

@@ -1,20 +1,17 @@
 -module(fs).
 -include_lib("kernel/include/file.hrl").
--export([start_link/4, subscribe/1, known_events/0, start_looper/0, path/0, find_executable/2]).
+-export([start_link/2, subscribe/1, known_events/1, start_looper/1, find_executable/2]).
 
 % sample subscriber
 
-start_link(SupName, EventHandler, FileHandler, Path) -> fs_sup:start_link(SupName, EventHandler, FileHandler, Path).
+start_link(Name, Path) ->
+    SupName = name(Name, "sup"),
+    FileHandler = name(Name, "file"),
+    fs_sup:start_link(SupName, Name, FileHandler, Path).
 subscribe(Name) -> gen_event:add_sup_handler(Name, {fs_event_bridge, self()}, [self()]).
 
-subscribe() -> gen_event:add_sup_handler(fs_events, {fs_event_bridge, self()}, [self()]).
-known_events() -> gen_server:call(fs_server, known_events).
-start_looper() -> spawn(fun() -> subscribe(), loop() end).
-
-path() ->
-    case application:get_env(fs, path) of
-        {ok, P} -> filename:absname(P);
-        undefined -> filename:absname("") end.
+known_events(Name) -> gen_server:call(name(Name, "file"), known_events).
+start_looper(Name) -> spawn(fun() -> subscribe(Name), loop() end).
 
 loop() ->
     receive
@@ -49,3 +46,7 @@ priv_file(Cmd) ->
         false -> false end;
     _ ->
         false end.
+
+name(Name, Prefix) ->
+    NameList = erlang:atom_to_list(Name),
+    list_to_atom(NameList ++ Prefix).