Merge pull request #195 from capistrano/set-up-travis-and-danger

Set up Travis and Danger

Author: mattbrictson

.travis.yml

@@ -0,0 +1,6 @@
+sudo: false
+language: ruby
+rvm:
+  - 2.3.3
+before_install: gem install bundler -v '~> 1.14' --conservative
+before_script: bundle exec danger

Dangerfile

@@ -0,0 +1,43 @@
+# Adapted from https://github.com/ruby-grape/danger/blob/master/Dangerfile
+# Q: What is a Dangerfile, anyway? A: See http://danger.systems/
+
+# ------------------------------------------------------------------------------
+# Additional pull request data
+# ------------------------------------------------------------------------------
+project_name = github.pr_json["base"]["repo"]["name"]
+pr_number = github.pr_json["number"]
+pr_url = github.pr_json["_links"]["html"]["href"]
+
+# ------------------------------------------------------------------------------
+# What changed?
+# ------------------------------------------------------------------------------
+has_lib_changes = !git.modified_files.grep(/^lib/).empty?
+has_changelog_changes = git.modified_files.include?("CHANGELOG.md")
+
+# ------------------------------------------------------------------------------
+# Have you updated CHANGELOG.md?
+# ------------------------------------------------------------------------------
+if !has_changelog_changes && has_lib_changes
+  markdown <<-MARKDOWN
+Here's an example of a CHANGELOG.md entry (place it immediately under the `* Your contribution here!` line):
+
+```markdown
+* [##{pr_number}](#{pr_url}): #{github.pr_title} - [@#{github.pr_author}](https://github.com/#{github.pr_author}).
+```
+MARKDOWN
+  warn("Please update CHANGELOG.md with a description of your changes. "\
+       "If this PR is not a user-facing change (e.g. just refactoring), "\
+       "you can disregard this.", :sticky => false)
+end
+
+# ------------------------------------------------------------------------------
+# Did you remove the CHANGELOG's "Your contribution here!" line?
+# ------------------------------------------------------------------------------
+if has_changelog_changes
+  unless IO.read("CHANGELOG.md") =~ /^\* Your contribution here/i
+    fail(
+      "Please put the `* Your contribution here!` line back into CHANGELOG.md.",
+      :sticky => false
+    )
+  end
+end

Rakefile

@@ -1 +1,4 @@
 require "bundler/gem_tasks"
+
+# Do nothing by default
+task :default

capistrano-rails.gemspec

@@ -18,4 +18,5 @@ Gem::Specification.new do |gem|
   gem.add_dependency 'capistrano', '~> 3.1'
   gem.add_dependency 'capistrano-bundler', '~> 1.1'
 
+  gem.add_development_dependency 'danger'
 end