class Buildr::Artifact

# File lib/buildr/packaging/artifact.rb, line 382
def hash_to_file_name(hash)
  version = "-#{hash[:version]}" if hash[:version]
  classifier = "-#{hash[:classifier]}" if hash[:classifier]
  "#{hash[:id]}#{version}#{classifier}.#{extract_type(hash[:type]) || DEFAULT_TYPE}"
end

# File lib/buildr/packaging/artifact.rb, line 313
def list
  @artifacts ||= {}
  @artifacts.keys
end

# File lib/buildr/packaging/artifact.rb, line 304
def lookup(spec)
  @artifacts ||= {}
  @artifacts[to_spec(spec)]
end

# File lib/buildr/packaging/artifact.rb, line 450
def needed?
  true
end

# File lib/buildr/packaging/artifact.rb, line 322
def register(*tasks)
  @artifacts ||= {}
  fail 'You can only register an artifact task, one of the arguments is not a Task that responds to to_spec' unless
    tasks.all? { |task| task.respond_to?(:to_spec) && task.respond_to?(:invoke) }
  tasks.each { |task| @artifacts[task.to_spec] = task }
  tasks
end

# File lib/buildr/packaging/artifact.rb, line 341
def to_hash(spec)
  if spec.respond_to?(:to_spec)
    to_hash spec.to_spec
  elsif Hash === spec
    rake_check_options spec, :id, :group, :type, :classifier, :version, :scope
    # Sanitize the hash and check it's valid.
    spec = ARTIFACT_ATTRIBUTES.inject({}) { |h, k| h[k] = spec[k].to_s if spec[k] ; h }
    fail "Missing group identifier for #{spec.inspect}" unless spec[:group]
    fail "Missing artifact identifier for #{spec.inspect}" unless spec[:id]
    fail "Missing version for #{spec.inspect}" unless spec[:version]
    spec[:type] = (spec[:type] || DEFAULT_TYPE).to_sym
    spec
  elsif String === spec
    group, id, type, version, *rest = spec.split(':').map { |part| part.empty? ? nil : part }
    unless rest.empty?
      # Optional classifier comes before version.
      classifier, version = version, rest.shift
      fail "Expecting <group:id:type:version> or <group:id:type:classifier:version>, found <#{spec}>" unless rest.empty?
    end
    to_hash :group=>group, :id=>id, :type=>type, :version=>version, :classifier=>classifier
  else
    fail 'Expecting a String, Hash or object that responds to to_spec'
  end
end

# File lib/buildr/packaging/artifact.rb, line 371
def to_spec(hash)
  hash = to_hash(hash) unless Hash === hash
  version = ":#{hash[:version]}" if hash[:version]
  classifier = ":#{hash[:classifier]}" if hash[:classifier]
  "#{hash[:group]}:#{hash[:id]}:#{hash[:type] || DEFAULT_TYPE}#{classifier}#{version}"
end

# File lib/buildr/packaging/artifact.rb, line 436
def content(string = nil)
  unless string
    @content = @content.call if @content.is_a?(Proc)
    return @content
  end

  unless @content
    enhance do
      write name, self.content
    end

    class << self
      # Force overwriting target since we don't have source file
      # to check for timestamp modification
      def needed?
        true
      end
    end
  end
  @content = string
  pom.content pom_xml unless pom == self || pom.has_content?
  self
end

# File lib/buildr/packaging/artifact.rb, line 414
def from(path)
  @from = path.is_a?(Rake::Task) ? path : File.expand_path(path.to_s)
  enhance [@from] do
    mkpath File.dirname(name)
    cp @from.to_s, name
  end
  pom.content pom_xml unless pom == self || pom.has_content?
  self
end

# File lib/buildr/packaging/artifact.rb, line 518
def current_snapshot_repo_url(repo_url)
  begin
    metadata_path = "#{group_path}/#{id}/#{version}/maven-metadata.xml"
    metadata_xml = StringIO.new
    URI.download repo_url + metadata_path, metadata_xml
    metadata = REXML::Document.new(metadata_xml.string).root
    timestamp = REXML::XPath.first(metadata, '//timestamp')
    build_number = REXML::XPath.first(metadata, '//buildNumber')
    error "No timestamp provided for the snapshot #{to_spec}" if timestamp.nil?
    error "No build number provided for the snapshot #{to_spec}" if build_number.nil?
    return nil if timestamp.nil? || build_number.nil?
    snapshot_of = version[0, version.size - 9]
    classifier_snippet = (classifier != nil) ? "-#{classifier}" : ""
    repo_url + "#{group_path}/#{id}/#{version}/#{id}-#{snapshot_of}-#{timestamp.text}-#{build_number.text}#{classifier_snippet}.#{type}"
  rescue URI::NotFoundError
    nil
  end
end

# File lib/buildr/packaging/artifact.rb, line 474
def download
  trace "Downloading #{to_spec}"
  remote = Buildr.repositories.remote_uri
  remote = remote.each { |repo_url| repo_url.path += '/' unless repo_url.path[-1] == '/' }
  fail "Unable to download #{to_spec}. No remote repositories defined." if remote.empty?
  exact_success = remote.find do |repo_url|
    begin
      path = "#{group_path}/#{id}/#{version}/#{File.basename(name)}"
      download_artifact(repo_url + path)
      true
    rescue URI::NotFoundError
      false
    rescue Exception=>error
      info error
      trace error.backtrace.join("\n")
      false
    end
  end

  if exact_success
    return
  elsif snapshot?
    download_m2_snapshot(remote)
  else
    fail_download(remote)
  end
end

# File lib/buildr/packaging/artifact.rb, line 502
def download_m2_snapshot(remote_uris)
  remote_uris.find do |repo_url|
    snapshot_url = current_snapshot_repo_url(repo_url)
    if snapshot_url
      begin
        download_artifact snapshot_url
        true
      rescue URI::NotFoundError
        false
      end
    else
      false
    end
  end or fail_download(remote_uris)
end

# File lib/buildr/packaging/artifact.rb, line 537
def fail_download(remote_uris)
  fail "Failed to download #{to_spec}, tried the following repositories:\n#{remote_uris.join("\n")}"
end

# File lib/buildr/packaging/artifact.rb, line 462
def has_content?
  @from || @content
end

# File lib/buildr/packaging/artifact.rb, line 547
def needed?
  return true if snapshot? && File.exist?(name) && (update_snapshot? || old?)
  super
end