Module: GemChanges::Gemfile

Defined in:
lib/gem_changes/gemfile.rb

Constant Summary collapse

REMOVAL_REGEX = 
/^-    ([^ ]*) \((.*)\)/
ADDITION_REGEX = 
/^\+    ([^ ]*) \((.*)\)/

Class Method Summary collapse

Class Method Details

.changes(git:) ⇒ Object 



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# File 'lib/gem_changes/gemfile.rb', line 8

module_function def changes(git:)
  diff = git.diff_for_file("Gemfile.lock")

  return [] if diff.nil?

  added = {}

  diff.patch.scan(ADDITION_REGEX).each do |match|
    added[match[0]] = match[1]
  end

  removed = {}

  diff.patch.scan(REMOVAL_REGEX).each do |match|
    removed[match[0]] = match[1]
  end

  all_gems = added.keys | removed.keys

  all_gems.map do |gem_name|
    gem = Gem.new(name: gem_name)

    Change.new(gem:, from: removed[gem_name], to: added[gem_name])
  end
end