Add support for OpenBSD (#45)

README.md

@@ -6,10 +6,10 @@ A file change watcher wrapper based on [fs](https://github.com/synrc/fs)
 ## System Support
 
 - Mac fsevent
-- Linux and FreeBSD inotify
+- Linux, FreeBSD and OpenBSD inotify
 - Windows inotify-win
 
-NOTE: On Linux and FreeBSD you need to install inotify-tools.
+NOTE: On Linux, FreeBSD and OpenBSD you need to install inotify-tools.
 
 ## Usage
 

lib/file_system.ex

@@ -7,7 +7,7 @@ defmodule FileSystem do
     * `:dirs` ([string], required), the dir list to monitor
 
     * `:backend` (atom, optional), default backends: `:fs_mac`
-      for `macos`, `:fs_inotify` for `linux` and `freebsd`,
+      for `macos`, `:fs_inotify` for `linux`, `freebsd` and `openbsd`,
       `:fs_windows` for `windows`
 
     * `:name` (atom, optional), `name` can be used to subscribe as

lib/file_system/backend.ex

@@ -33,6 +33,7 @@ defmodule FileSystem.Backend do
       {:unix,  :darwin}  -> :fs_mac
       {:unix,  :linux}   -> :fs_inotify
       {:unix,  :freebsd} -> :fs_inotify
+      {:unix,  :openbsd} -> :fs_inotify
       {:win32, :nt}      -> :fs_windows
       system             -> {:unsupported_system, system}
     end |> backend_module

lib/file_system/backends/fs_inotify.ex

@@ -3,7 +3,7 @@ require Logger
 defmodule FileSystem.Backends.FSInotify do
   @moduledoc """
   This file is a fork from https://github.com/synrc/fs.
-  FileSysetm backend for linux and freebsd, a GenServer receive data from Port, parse event
+  FileSysetm backend for linux, freebsd and openbsd, a GenServer receive data from Port, parse event
   and send it to the worker process.
   Need `inotify-tools` installed to use this backend.
 
@@ -37,7 +37,7 @@ defmodule FileSystem.Backends.FSInotify do
   end
 
   def supported_systems do
-    [{:unix, :linux}, {:unix, :freebsd}]
+    [{:unix, :linux}, {:unix, :freebsd}, {:unix, :openbsd}]
   end
 
   def known_events do

lib/file_system/backends/fs_poll.ex

@@ -23,7 +23,7 @@ defmodule FileSystem.Backends.FSPoll do
   def bootstrap, do: :ok
 
   def supported_systems do
-    [{:unix, :linux}, {:unix, :freebsd}, {:unix, :darwin}, {:win32, :nt}]
+    [{:unix, :linux}, {:unix, :freebsd}, {:unix, :openbsd}, {:unix, :darwin}, {:win32, :nt}]
   end
 
   def known_events do