Class: Hotdog::Commands::SshAlike

Inherits:
Search show all
Defined in:
lib/hotdog/commands/ssh.rb

Direct Known Subclasses

Pssh, SingularSshAlike

Instance Attribute Summary

Attributes inherited from Search

#remote_command

Attributes inherited from BaseCommand

#application, #logger, #options, #persistent_db_path

Instance Method Summary collapse

Methods inherited from Search

#evaluate, #get_hosts_with_search_tags, #parse, #parse_options

Methods inherited from BaseCommand

#execute, #fixed_string?, #initialize, #parse_options, #reload

Constructor Details

This class inherits a constructor from Hotdog::Commands::BaseCommand

Instance Method Details

#define_options(optparse, options = {}) ⇒ Object 



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# File 'lib/hotdog/commands/ssh.rb', line 12

def define_options(optparse, options={})
  default_option(options, :ssh_options, {})
  default_option(options, :color, :auto)
  default_option(options, :max_parallelism, Parallel.processor_count * 2)
  default_option(options, :shuffle, false)
  default_option(options, :ssh_config, nil)
  optparse.on("-C", "Enable compression.") do |v|
    options[:ssh_options]["Compression"] = "yes"
  end
  optparse.on("-F SSH_CONFIG", "Specifies an alternative per-user SSH configuration file.") do |configfile|
    options[:ssh_config] = configfile
  end
  optparse.on("--dry-run", "Dry run.") do |v|
    options[:dry_run] = v
  end
  optparse.on("-o SSH_OPTION", "Passes this string to ssh command through shell. This option may be given multiple times") do |ssh_option|
    ssh_option_key, ssh_option_value = ssh_option.split("=", 2)
    options[:ssh_options][ssh_option_key] = ssh_option_value
  end
  optparse.on("-i SSH_IDENTITY_FILE", "SSH identity file path") do |path|
    options[:ssh_options]["IdentityFile"] = path
  end
  optparse.on("-A", "Enable agent forwarding", TrueClass) do |b|
    options[:ssh_options]["ForwardAgent"] = "yes"
  end
  optparse.on("-p PORT", "Port of the remote host", Integer) do |port|
    options[:ssh_options]["Port"] = port
  end
  optparse.on("-u SSH_USER", "SSH login user name") do |user|
    options[:ssh_options]["User"] = user
  end
  optparse.on("-v", "--verbose", "Enable verbose ode") do |v|
    options[:verbose] = v
  end
  optparse.on("--filter=COMMAND", "Command to filter search result.") do |command|
    options[:filter_command] = command
  end
  optparse.on("-P PARALLELISM", "Max parallelism", Integer) do |n|
    options[:max_parallelism] = n
  end
  optparse.on("--color=WHEN", "--colour=WHEN", "Enable colors") do |color|
    options[:color] = color
  end
  optparse.on("--shuffle", "Shuffle result") do |v|
    options[:shuffle] = v
  end
end

#run(args = [], options = {}) ⇒ Object 



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# File 'lib/hotdog/commands/ssh.rb', line 60

def run(args=[], options={})
  expression = rewrite_expression(args.join(" ").strip)

  begin
    node = parse(expression)
  rescue Parslet::ParseFailed => error
    STDERR.puts("syntax error: " + error.cause.ascii_tree)
    exit(1)
  end

  result0 = evaluate(node, self)
  tuples, fields = get_hosts_with_search_tags(result0, node)
  tuples = filter_hosts(tuples)
  validate_hosts!(tuples, fields)
  run_main(tuples.map {|tuple| tuple.first }, options)
end