hideshi · December 2, 2015 00:04 · Dec 2, 2015
diff --git a/file1.txt b/file1.txt
@@ -0,0 +1,4 @@
+defmodule EightBall.CLI do
+  def main(args) do
+  end
+end
diff --git a/file10.txt b/file10.txt
@@ -0,0 +1 @@
+"Question must be a string, ending with a question mark."
diff --git a/file11.txt b/file11.txt
@@ -0,0 +1 @@
+mix escript.build
diff --git a/file12.txt b/file12.txt
@@ -0,0 +1,4 @@
+➜  eight_ball git:(master) ✗ mix escript.build
+Compiled lib/eight_ball.ex
+Generated eight_ball app
+Generated escript eight_ball with MIX_ENV=dev
diff --git a/file13.txt b/file13.txt
@@ -0,0 +1,2 @@
+➜  eight_ball git:(master) ✗ ./eight_ball --question "Is Elixir awesome?"
+Outlook good
diff --git a/file14.txt b/file14.txt
@@ -0,0 +1,2 @@
+➜  eight_ball git:(master) ✗ ./eight_ball --question "Is Elixir awesome"
+Question must be a string, ending with a question mark.
diff --git a/file2.txt b/file2.txt
@@ -0,0 +1 @@
+eight_ball --question "Is Elixir great?"
diff --git a/file3.txt b/file3.txt
@@ -0,0 +1 @@
+eight_ball -q "Is Elixir great?"
diff --git a/file4.txt b/file4.txt
@@ -0,0 +1,9 @@
+defmodule EightBall.CLI do
+  def main(argv) do
+    {options, _, _} = OptionParser.parse(argv, 
+      switches: [question: :string],
+    )
+
+    IO.inspect options
+  end
+end
diff --git a/file5.txt b/file5.txt
@@ -0,0 +1 @@
+mix escript.build
diff --git a/file6.txt b/file6.txt
@@ -0,0 +1,4 @@
+➜  eight_ball git:(master) ✗ mix escript.build
+Compiled lib/eight_ball/cli.ex
+Generated eight_ball app
+Generated escript eight_ball with MIX_ENV=dev
diff --git a/file7.txt b/file7.txt
@@ -0,0 +1 @@
+./eight_ball --question "Is Elixir great?"
diff --git a/file8.txt b/file8.txt
@@ -0,0 +1,2 @@
+➜  eight_ball git:(master) ✗ ./eight_ball -q "Is Elixir great?"
+[question: "Is Elixir great?"]
diff --git a/file9.txt b/file9.txt
@@ -0,0 +1,15 @@
+defmodule EightBall.CLI do
+  def main(opts) do
+    {options, _, _} = OptionParser.parse(opts, 
+      switches: [question: :string],
+      aliases: [q: :question] # makes '-q' an alias of '--question'
+    )
+
+    try do
+      IO.puts EightBall.ask(options[:question]) 
+    rescue 
+      e in RuntimeError -> e
+        IO.puts e.message
+    end
+  end
+end
diff --git a/mix.exs b/mix.exs
@@ -0,0 +1,15 @@
+defmodule EightBall.Mixfile do
+  use Mix.Project
+
+  def project do
+    [app: :eight_ball,
+     version: "0.0.1",
+     elixir: "~> 1.0",
+     build_embedded: Mix.env == :prod,
+     start_permanent: Mix.env == :prod,
+     escript: [main_module: EightBall.CLI], # <- this line
+     deps: deps,
+     package: package ]
+  end
+  # ...
+end
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		"Question must be a string, ending with a question mark."
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		➜ eight_ball git:(master) ✗ ./eight_ball --question "Is Elixir awesome?"
		Outlook good
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		➜ eight_ball git:(master) ✗ ./eight_ball --question "Is Elixir awesome"
		Question must be a string, ending with a question mark.
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		➜ eight_ball git:(master) ✗ ./eight_ball -q "Is Elixir great?"
		[question: "Is Elixir great?"]