Update style cops and Vision sample to fix offenses

Author: remi Taylor

.rubocop.yml

@@ -76,6 +76,15 @@ Performance/RedundantBlockCall:
 Style/EmptyLinesAroundBlockBody:
   Enabled: false
 
+# Allow any level of comment indentation for documentation region tag comments
+Style/CommentIndentation:
+  Enabled: false
+
+# Methods in this repository are often used to wrap code snippets
+# These snippets may be long, so the method length cop is disabled
+Style/MethodLength:
+  Enabled: false
+
 Style/NumericLiterals:
   Enabled: false
 Style/SpaceAroundOperators:
@@ -109,4 +118,4 @@ Style/DotPosition:
 Style/WordArray:
   MinSize: 4
 Metrics/AbcSize:
-  Max: 20
+  Enabled: false

vision/vision_samples.rb

@@ -12,7 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-def detect_labels path_to_image_file
+# TODO: update to use named parameters
+
+def detect_labels path_to_image_file:
 # [START detect_labels]
   # [START importing_libraries]
   require "google/cloud"
@@ -38,7 +40,7 @@ def detect_labels path_to_image_file
 # [END detect_labels]
 end
 
-def detect_landmark path_to_image_file
+def detect_landmark path_to_image_file:
 # [START detect_landmark]
   # [START importing_libraries]
   require "google/cloud"
@@ -61,7 +63,7 @@ def detect_landmark path_to_image_file
 # [END detect_landmarks]
 end
 
-def detect_faces path_to_image_file, path_to_output_file
+def detect_faces path_to_image_file:, path_to_output_file:
 # [START detect_faces]
   # [START importing_libraries]
   require "google/cloud"
@@ -115,11 +117,12 @@ def detect_faces path_to_image_file, path_to_output_file
 
   case command
   when "labels"
-    detect_labels ARGV.shift
+    detect_labels path_to_image_file: ARGV.shift
   when "landmarks"
-    detect_landmark ARGV.shift
+    detect_landmark path_to_image_file: ARGV.shift
   when "faces"
-    detect_faces ARGV.shift, ARGV.shift
+    detect_faces path_to_image_file:  ARGV.shift,
+                 path_to_output_file: ARGV.shift
   else
     puts <<-usage
 Usage: ruby vision_samples.rb <command> [arguments]