Dangerfile

has_app_changes = !git.modified_files.grep(/lib/).empty?
has_test_changes = !git.modified_files.grep(/spec/).empty?

# Sometimes it's a README fix, or something like that - which isn't relevant for
# including in a project's CHANGELOG for example
declared_trivial = github.pr_title.include? '#trivial'

# Make it more obvious that a PR is a work in progress and shouldn't be merged yet
warn('PR is classed as Work in Progress') if github.pr_title.include? '[WIP]'

# Warn when there is a big PR
warn('Big PR') if git.lines_of_code > 500

# Add a CHANGELOG entry for app changes
if !git.modified_files.include?('CHANGELOG.md') && has_app_changes
  fail('Please include a CHANGELOG entry.')
end

# Warn about un-updated tests
if has_app_changes && !has_test_changes
  warn 'Tests were not updated'
end

if github.pr_body.length < 5
  fail 'Please provide a summary in the Pull Request description'
end

rubocop.run