lib/tlapse/doctor.rb in tlapse-0.0.6 vs lib/tlapse/doctor.rb in tlapse-0.1.0

@@ -1,17 +1,37 @@
 module Tlapse
   module Doctor
     def doctor
       print "Checking gphoto2..."
-      if `which gphoto2`.empty?
-        raise "Could not find gphoto2 :("
-      end
+      check_gphoto2!
       puts "ok!"
 
       print "Checking camera..."
-      # TODO: Check camera
+      check_camera!
       puts "ok!"
 
       puts "Looks good!"
+    end
+
+    private ###################################################################
+
+    def check_gphoto2!
+      raise "Could not find gphoto2 :(" if `which gphoto2`.empty?
+    end
+
+    def check_camera!
+      cameras = `gphoto2 --auto-detect`
+
+      # Output looks like this:
+      #
+      #   Model       Port
+      #   --------------------
+      #   Camera      :usb
+      #
+      # If there is a third line, a camera was detected
+
+      unless cameras.split("\n").length > 2
+        raise "gphoto2 couldn't find a camera :("
+      end
     end
   end # Doctor
 end # Tlapse