add danger

.gitignore

@@ -64,3 +64,6 @@ crashlytics-build.properties
 fabric.properties
 
 google-services.json
+
+/.bundle/
+/vendor/bundle

Dangerfile

@@ -0,0 +1,16 @@
+# github comment settings
+github.dismiss_out_of_range_messages
+
+# for PR
+if github.pr_title.include? "[WIP]" || github.pr_labels.include?("WIP")
+  warn("PR is classed as Work in Progress") 
+end
+
+# Warn when there is a big PR
+warn("a large PR") if git.lines_of_code > 300
+
+# Warn when PR has no milestone
+warn("A pull request must have a milestone set") if github.pr_json["milestone"].nil?
+
+# Warn when PR has no assignees
+warn("A pull request must have some assignees") if github.pr_json["assignee"].nil?

Gemfile

@@ -0,0 +1,4 @@
+# frozen_string_literal: true
+source "https://rubygems.org"
+
+gem 'danger'

Gemfile.lock

@@ -0,0 +1,51 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    addressable (2.5.1)
+      public_suffix (~> 2.0, >= 2.0.2)
+    claide (1.0.2)
+    claide-plugins (0.9.2)
+      cork
+      nap
+      open4 (~> 1.3)
+    colored2 (3.1.2)
+    cork (0.3.0)
+      colored2 (~> 3.1)
+    danger (5.3.2)
+      claide (~> 1.0)
+      claide-plugins (>= 0.9.2)
+      colored2 (~> 3.1)
+      cork (~> 0.1)
+      faraday (~> 0.9)
+      faraday-http-cache (~> 1.0)
+      git (~> 1)
+      kramdown (~> 1.5)
+      octokit (~> 4.2)
+      terminal-table (~> 1)
+    faraday (0.12.1)
+      multipart-post (>= 1.2, < 3)
+    faraday-http-cache (1.3.1)
+      faraday (~> 0.8)
+    git (1.3.0)
+    kramdown (1.14.0)
+    multipart-post (2.0.0)
+    nap (1.1.0)
+    octokit (4.7.0)
+      sawyer (~> 0.8.0, >= 0.5.3)
+    open4 (1.3.4)
+    public_suffix (2.0.5)
+    sawyer (0.8.1)
+      addressable (>= 2.3.5, < 2.6)
+      faraday (~> 0.8, < 1.0)
+    terminal-table (1.8.0)
+      unicode-display_width (~> 1.1, >= 1.1.1)
+    unicode-display_width (1.3.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  danger
+
+BUNDLED WITH
+   1.15.1

circle.yml

@@ -1,6 +1,8 @@
 machine:
   java:
     version: oraclejdk8
+  ruby:
+    version: ruby-2.4.1
   timezone: Asia/Tokyo
   environment:
     TERM: "dumb"
@@ -14,6 +16,7 @@ test:
   pre:
     - openssl aes-256-cbc -k $DECRYPT_KEY -d -in app/encrypted_google-services.json -out app/google-services.json
   override:
+    - bundle exec danger
     - ./gradlew :app:checkLicenses
     - ./gradlew :app:assembleDebug
 deployment: