From dc8f9ba92454f659cfa7c9772e735074083ae215 Mon Sep 17 00:00:00 2001
From: kdelchev <konstantin.delchev@sumup.com>
Date: Wed, 29 Jul 2015 23:07:49 +0300
Subject: [PATCH 1/3] Create task to update js files automatically

---
 Rakefile | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Rakefile b/Rakefile
index 14cfe0b..29530fc 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,2 +1,13 @@
 require 'bundler'
 Bundler::GemHelper.install_tasks
+
+namespace :d3 do
+  desc 'Update d3 version'
+  task :update_version do
+    `curl -o app/assets/javascripts/d3.js https://raw.githubusercontent.com/mbostock/d3/master/d3.js`
+    `curl -o app/assets/javascripts/d3.min.js https://raw.githubusercontent.com/mbostock/d3/master/d3.min.js`
+    `cp app/assets/javascripts/d3.js app/assets/javascripts/d3.v3.js`
+    `cp app/assets/javascripts/d3.min.js app/assets/javascripts/d3.v3.min.js`
+    puts "Update manually version to #{`grep 'version: ".*"' app/assets/javascripts/d3.js | cut -d '"' -f 2`}CHANGELOG.md\nREADME.md\nlib/d3/rails/version.rb\n"
+  end
+end

From 24fa3afaca6742850b00bff0cb8775f1d9235473 Mon Sep 17 00:00:00 2001
From: kdelchev <konstantin.delchev@sumup.com>
Date: Wed, 29 Jul 2015 23:09:49 +0300
Subject: [PATCH 2/3] Update README file

---
 README.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/README.md b/README.md
index 7848dd7..b7581b3 100644
--- a/README.md
+++ b/README.md
@@ -21,3 +21,10 @@ Please note that D3 is provided via the asset pipeline and you do *not* need to
 Then add it to your manifest file, most probably at `app/assets/javascripts/application.js`:
 
     //= require d3
+
+## Development
+
+To update D3 version in gem run rake task:
+```bash
+bundle exec rake d3:update_version
+```

From 4b9eedc730103f7d03ac3ca244fa93d1b8300217 Mon Sep 17 00:00:00 2001
From: kdelchev <konstantin.delchev@sumup.com>
Date: Thu, 30 Jul 2015 14:33:28 +0300
Subject: [PATCH 3/3] Update message in task and README.md

---
 README.md | 2 +-
 Rakefile  | 9 ++++++++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index b7581b3..3ba5384 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ Then add it to your manifest file, most probably at `app/assets/javascripts/appl
 
 ## Development
 
-To update D3 version in gem run rake task:
+To update the D3 version contained in the gem, you can run the following rake task
 ```bash
 bundle exec rake d3:update_version
 ```
diff --git a/Rakefile b/Rakefile
index 29530fc..545ee86 100644
--- a/Rakefile
+++ b/Rakefile
@@ -8,6 +8,13 @@ namespace :d3 do
     `curl -o app/assets/javascripts/d3.min.js https://raw.githubusercontent.com/mbostock/d3/master/d3.min.js`
     `cp app/assets/javascripts/d3.js app/assets/javascripts/d3.v3.js`
     `cp app/assets/javascripts/d3.min.js app/assets/javascripts/d3.v3.min.js`
-    puts "Update manually version to #{`grep 'version: ".*"' app/assets/javascripts/d3.js | cut -d '"' -f 2`}CHANGELOG.md\nREADME.md\nlib/d3/rails/version.rb\n"
+    version = `grep 'version: ".*"' app/assets/javascripts/d3.js | cut -d '"' -f 2`.strip
+    message = <<-MSG
+      Please update the version to #{version} manually in the following files:
+      * CHANGELOG.md
+      * README.md
+      * lib/d3/rails/version.rb
+    MSG
+    puts message.strip.squeeze ' '
   end
 end