Module: Builderator::Control::Version::Auto

Included in:
Builderator::Control::Version
Defined in:
lib/builderator/control/version/auto.rb

Overview

Search through commits since current version for #TYPE tags

Included in Version

Constant Summary collapse

DEFAULT_TYPE = 
'patch'.freeze
MESSAGE_KEYWORDS = 
/#(?<type>build|prerelease|release|patch\-prerelease|patch|minor\-prerelease|minor|major\-prerelease|major)(?:=(?<prerelease>[a-zA-Z0-9\-_]+))?/

Instance Method Summary collapse

Instance Method Details

#auto_type ⇒ Object 



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# File 'lib/builderator/control/version/auto.rb', line 13

def auto_type
  fail 'Version-bump type `auto` is unsuppoeted for this SCM. Version does not'\
       ' have a valid `ref` value' if ref.nil?

  ## Get commits since self.ref (e.g. commits since this tag)
  history_since_current = SCM.history.take_while do |commit|
    commit.id != ref
  end

  ## Search for the highest-precedence #TAG in those commit messages
  ## Search from oldest-to-newest. Newer #TAGs of equal precedence win
  result = history_since_current.reverse.reduce(nil) do |highest, commit|
    ## Not going to bother parsing multiple matches. If you're
    ## putting more than one #TYPE in your commit message, you
    ## deserve what you get...
    found_type = commit.message.scan(MESSAGE_KEYWORDS).first

    ## No #TYPE in message
    next highest if found_type.nil?

    ## First match
    next found_type if highest.nil?

    ## Retrun higher precedence release type
    RELEASE_TYPES[found_type.first.to_s] <= RELEASE_TYPES[highest.first.to_s] ? found_type : highest
  end

  return ['prerelease', nil] if result.nil? && is_prerelease
  return [DEFAULT_TYPE, nil] if result.nil?

  result
end