elixirscript
diff --git a/‎lib/elixir_script/cli.ex‎
Lines changed: 9 additions & 1 deletion b/‎lib/elixir_script/cli.ex‎
Lines changed: 9 additions & 1 deletion
diff --git a/‎lib/elixir_script/watcher.ex‎
Lines changed: 20 additions & 0 deletions b/‎lib/elixir_script/watcher.ex‎
Lines changed: 20 additions & 0 deletions
diff --git a/‎mix.exs‎
Lines changed: 2 additions & 1 deletion b/‎mix.exs‎
Lines changed: 2 additions & 1 deletion
diff --git a/‎mix.lock‎
Lines changed: 1 addition & 0 deletions b/‎mix.lock‎
Lines changed: 1 addition & 0 deletions
@@ -6,7 +6,7 @@ defmodule ElixirScript.CLI do
   @switches [
     output: :binary, elixir: :boolean, root: :binary,
     help: :boolean, core_path: :binary, std_lib: :binary,
-    full_build: :boolean, version: :boolean
+    full_build: :boolean, version: :boolean, watch: :boolean
   ]
 
   @aliases [
@@ -63,6 +63,7 @@ defmodule ElixirScript.CLI do
   end
 
   def process({ input, options }) do
+    IO.inspect(options)
     if options_contains_unknown_values(options) do
         process(:help)
     else
@@ -71,6 +72,8 @@ defmodule ElixirScript.CLI do
   end
 
   def do_process(input, options) do
+    {watch, options} = Keyword.pop(options, :watch, false)
+
     compile_opts = %{
       root: options[:root],
       include_path: true,
@@ -84,6 +87,11 @@ defmodule ElixirScript.CLI do
         ElixirScript.compile(input, compile_opts)
       _ ->
         ElixirScript.compile_path(input, compile_opts)
+
+        if watch do
+          ElixirScript.Watcher.start_link(input, compile_opts)
+          :timer.sleep :infinity
+        end
     end
   end
 
 
@@ -0,0 +1,20 @@
+defmodule ElixirScript.Watcher do
+  use GenServer
+  require Logger
+
+  def start_link(input, options) do
+    GenServer.start_link(__MODULE__, [input: input, options: options])
+  end
+
+  def init(args) do
+    {:ok, _} = Application.ensure_all_started(:elixir_script)
+    :fs.subscribe()
+    {:ok, args}
+  end
+
+  def handle_info({_pid, {:fs, :file_event}, {path, event}}, state) do
+    Logger.debug "File changed: #{path}"
+    ElixirScript.compile_path(state[:input], state[:options])
+    {:noreply, state}
+  end
+end
@@ -22,13 +22,14 @@ defmodule ElixirScript.Mixfile do
 
   def application do
     [
-      applications: [:logger, :estree]
+      applications: [:logger, :estree, :fs]
     ]
   end
 
   defp deps do
     [
       {:estree, "~> 2.3" },
+      {:fs, "~> 0.9.1"},
       {:earmark, "~> 0.2", only: :dev },
       {:ex_doc, "~> 0.11", only: :dev },
       {:excoveralls, "~> 0.4", only: :test},
 
@@ -8,6 +8,7 @@
   "ex_doc": {:hex, :ex_doc, "0.11.4"},
   "excoveralls": {:hex, :excoveralls, "0.5.1"},
   "exjsx": {:hex, :exjsx, "3.2.0"},
+  "fs": {:hex, :fs, "0.9.2"},
   "hackney": {:hex, :hackney, "1.4.8"},
   "idna": {:hex, :idna, "1.0.3"},
   "inflex": {:hex, :inflex, "1.5.0"},
Original file line number	Diff line number	Diff line change
`@@ -22,13 +22,14 @@ defmodule ElixirScript.Mixfile do`
`22`	`22`
`23`	`23`	`def application do`
`24`	`24`	`[`
`25`		`- applications: [:logger, :estree]`
	`25`	`+ applications: [:logger, :estree, :fs]`
`26`	`26`	`]`
`27`	`27`	`end`
`28`	`28`
`29`	`29`	`defp deps do`
`30`	`30`	`[`
`31`	`31`	`{:estree, "~> 2.3" },`
	`32`	`+ {:fs, "~> 0.9.1"},`
`32`	`33`	`{:earmark, "~> 0.2", only: :dev },`
`33`	`34`	`{:ex_doc, "~> 0.11", only: :dev },`
`34`	`35`	`{:excoveralls, "~> 0.4", only: :test},`