Module: MiniAether::Helper

Included in:
Bootstrap, Resolver
Defined in:
lib/mini_aether/helper.rb

Constant Summary collapse

System = 
Java::JavaLang::System

Instance Method Summary collapse

Instance Method Details

#interpolate(str) ⇒ Object

Interpolate variables like ${user.home} and ${env.HOME} from system properties and environment variables respectively.



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# File 'lib/mini_aether/helper.rb', line 25

def interpolate(str)
  ret = ''

  s = StringScanner.new(str)
  pos = s.pos

  while s.scan_until(/\$\{[^\s}]+\}/) # match ${stuff}
    # add the pre_match, but only starting from previous position
    ret << str.slice(pos, (s.pos - pos - s.matched.size))

    # interpolate
    var = s.matched.slice(2..-2)
    ret << case var
           when /^env\.(.*)/
             ENV[$1] || ''
           else
             System.getProperty(var) || ''
           end

    pos = s.pos
  end
  ret << s.rest
  
  ret
end

#jar_path(dep) ⇒ String

Build a m2 repository path fragment for dep. For example, coordinates of com.example:project:1.0.1 would result in com/example/project/1.0.1/project-1.0.1.jar.

Parameters:

  • dep (Hash) —

    a hash with keys :group_id, :artifact_id, and :version

Returns:

  • (String) —

    a path fragment to this artifact in m2 repository format



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# File 'lib/mini_aether/helper.rb', line 57

def jar_path(dep)
  group_id = dep[:group_id]
  group_path = group_id.gsub('.', '/')
  artifact_id = dep[:artifact_id]
  version = dep[:version]

  file_name = "#{artifact_id}-#{version}.jar"
  "#{group_path}/#{artifact_id}/#{version}/#{file_name}"
end

#local_repository_path ⇒ Object 



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# File 'lib/mini_aether/helper.rb', line 5

def local_repository_path
  default_local_repo_path =
    File.join(System.getProperty('user.home'), '.m2', 'repository')

  if File.exists? M2_SETTINGS
    xml = File.read M2_SETTINGS
    begin
      parser = XmlParser.new(xml)
      parser.pull_to_path(:settings, :localRepository)
      interpolate(parser.pull_text_until_end.strip)
    rescue XmlParser::NotFoundError
      default_local_repo_path
    end
  else
    default_local_repo_path
  end
end