Class: Net::SSH::Config

Inherits:
Object
  • Object
show all
Defined in:
lib/sconb/ext/net/ssh/config.rb

Class Method Summary collapse

Class Method Details

.load_with_key(path, host, options) ⇒ Object

Original code is Net::SSH::Config.load (github.com/net-ssh/net-ssh/blob/master/LICENSE.txt) rubocop:disable all



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# File 'lib/sconb/ext/net/ssh/config.rb', line 7

def load_with_key(path, host, options)
  settings = {}
  file = File.expand_path(path)
  return settings unless File.readable?(file)

  globals = {}
  matched_host = nil
  multi_host = []
  seen_host = false
  IO.foreach(file) do |line|
    next if line =~ /^\s*(?:#.*)?$/

    if line =~ /^\s*(\S+)\s*=(.*)$/
      key, value = $1, $2
    else
      key, value = line.strip.split(/\s+/, 2)
    end

    # silently ignore malformed entries
    next if value.nil?

    value = $1 if value =~ /^"(.*)"$/

    if key.downcase == 'host'
      # Support "Host host1 host2 hostN".
      # See http://github.com/net-ssh/net-ssh/issues#issue/6
      negative_hosts, positive_hosts = value.to_s.split(/\s+/).partition { |h| h.start_with?('!') }

      # Check for negative patterns first. If the host matches, that overrules any other positive match.
      # The host substring code is used to strip out the starting "!" so the regexp will be correct.
      negative_match = negative_hosts.select { |h| host =~ pattern2regex(h[1..-1]) }.first

      if negative_match
        matched_host = nil
      else
        matched_host = positive_hosts.select { |h| host =~ pattern2regex(h) }.first
      end
      settings[key] = host unless matched_host.nil?
      seen_host = true
    elsif key.downcase == 'match'
      if host == value
        matched_host = true
      else
        matched_host = nil
      end
      settings[key] = host unless matched_host.nil?
      seen_host = true
    elsif !seen_host
      if key.downcase == 'identityfile'
        (globals[key] ||= []) << value

        # Read IdentityFile Content
        identity_file = File.expand_path(value)
        if options[:all] and File.readable?(identity_file)
          (globals['IdentityFileContent'] ||= []) << File.open(identity_file).read
        end
      else
        globals[key] = value unless settings.key?(key)
      end
    elsif !matched_host.nil?
      if key.downcase == 'identityfile'
        (settings[key] ||= []) << value

        # Read IdentityFile Content
        identity_file = File.expand_path(value)
        if options[:all] and File.readable?(identity_file)
          (settings['IdentityFileContent'] ||= []) << File.open(identity_file).read
        end
      else
        settings[key] = value unless settings.key?(key)
      end
    end
  end

  settings = globals.merge(settings) if globals

  settings
end