class Sesh::TmuxControl

Public Class Methods

get_running_projects() click to toggle source
# File lib/sesh/tmux_control.rb, line 15
    def self.get_running_projects
      output = Sesh.format_and_run_command <<-BASH
        ps aux | grep tmux | grep "sesh begin" | grep -v "[g]rep" \
               | sed -e "s/.*\\/tmp\\/\\(.*\\)\\.sock.*/\\1/"
      BASH
      output.lines.map(&:strip)
    end
new(project, options={}) click to toggle source
# File lib/sesh/tmux_control.rb, line 9
def initialize(project, options={})
  @project = project || Inferences::infer_project_from_current_directory
  @options = {}.merge(DEFAULT_OPTIONS[:tmux]).merge options
  @socket_file = @options[:socket_file] || "/tmp/#{@project}.sock"
end

Public Instance Methods

already_running?() click to toggle source
# File lib/sesh/tmux_control.rb, line 22
def already_running?; self.class.get_running_projects.include? @project end
begin_tmuxinator_session!() click to toggle source
# File lib/sesh/tmux_control.rb, line 100
def begin_tmuxinator_session!
  %x[env TMUX='' mux start #{@project}] end
connected_client_devices() click to toggle source
# File lib/sesh/tmux_control.rb, line 128
def connected_client_devices
  `tmux -S "#{@socket_file}" list-clients 2>/dev/null | cut -d : -f 1 | cut -d / -f 3`.strip.lines.map(&:strip)
end
connected_clients() click to toggle source
# File lib/sesh/tmux_control.rb, line 144
def connected_clients
  connected_client_devices.map{|devname| get_ip_from_device(devname) } end
connection_command() click to toggle source
# File lib/sesh/tmux_control.rb, line 48
def connection_command; "tmux -S #{@socket_file} a" end
disconnect_client!(identifier) click to toggle source
# File lib/sesh/tmux_control.rb, line 154
def disconnect_client!(identifier)
  identifier = '127.0.0.1' if identifier.nil? || identifier.length == 0
  if identifier.to_i.to_s == identifier.to_s # It's an integer
    disconnect_client_by_index! identifier.to_i - 1
  elsif identifier =~ /[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+/ # It's an ip
    disconnect_client_by_ip! identifier
  elsif identifier =~ /.*@.*/ || identifier =~ /\.local$/
    ping_output = `ping -a -c 1 #{identifier} 2>&1`.strip.lines
    if $? && ping_output.length > 1 && ping_output[1] =~ / from /
      resolved_ip = ping_output[1].split(' from ')[1].split(': ')[0]
      disconnect_client_by_ip! resolved_ip
    else
      puts "Ping output: #{ping_output}"
    end
  else
    ssh_identifier =
      `awk '/Host #{identifier}/ {getline; print $2}' ~/.ssh/config`.strip
    return disconnect_client!(ssh_identifier) if ssh_identifier.length > 0
    fatal("Client")
  end
end
disconnect_client_by_device!(devname) click to toggle source
# File lib/sesh/tmux_control.rb, line 146
def disconnect_client_by_device!(devname)
  `tmux -S "#{@socket_file}" detach-client -t "/dev/#{devname}"`.strip.length == 0 end
disconnect_client_by_index!(index) click to toggle source
# File lib/sesh/tmux_control.rb, line 152
def disconnect_client_by_index!(index)
  disconnect_client_by_device! connected_client_devices[index] end
disconnect_client_by_ip!(ip) click to toggle source
# File lib/sesh/tmux_control.rb, line 148
def disconnect_client_by_ip!(ip)
  device = get_device_from_ip(ip)
  Logger.fatal("#{ip} is not connected to project \"#{@project}\".") if device.nil?
  disconnect_client_by_device! device end
do_shell_operation!(options=DEFAULT_OPTIONS[:shell]) click to toggle source
# File lib/sesh/tmux_control.rb, line 199
def do_shell_operation!(options=DEFAULT_OPTIONS[:shell])
  unless options[:spec].nil?
    rspec_cmd = if options[:rspec_prefix].nil? then 'rspec'
                else "#{options[:rspec_prefix]} rspec" end
    options[:command] ||= "#{rspec_cmd} #{options[:spec]}"
  end
  if options[:and_return]
    options[:command] = "return_to_sesh; #{options[:command]}"
  end
  inferred_location = Inferences.infer_tmux_location
  # puts "Inferred location: #{inferred_location}"
  if options[:pane].nil?
    # puts inferred_location.inspect
    if inferred_location[:project] != @project
      interrupt_and_send_command_to_project! options[:command]
      return 0
    else do_shell_operation_here! options[:command] end
  else
    if inferred_location != { project: @project, pane: options[:pane] }
      interrupt_and_send_command_to_pane! options[:pane], options[:command]
      return 0
    else do_shell_operation_here! options[:command] end
  end
end
do_shell_operation_here!(cmd, allow_zeus_retry=true) click to toggle source
# File lib/sesh/tmux_control.rb, line 223
def do_shell_operation_here!(cmd, allow_zeus_retry=true)
  # system cmd
  raw = ''
  PTY.spawn(cmd) do |reader, writer|
    reader.sync = true
    writer.sync = true
    Thread.new { loop { writer.print(STDIN.getc.chr) } }
    while (c=reader.getc)
      raw << c
      print c
    end
  end
  if allow_zeus_retry && raw =~ /Could not find command "rspec /
    return do_shell_operation_here! cmd, false
  end
  $?.exitstatus
end
get_device_from_ip(ip) click to toggle source
# File lib/sesh/tmux_control.rb, line 136
def get_device_from_ip(ip)
  return if ( connected_devs = connected_client_devices ).length == 0
  return connected_devs.find{|d| get_ip_from_device(ip) == ip } if ip == '127.0.0.1'
  who_lines = `who -a 2> /dev/null | grep "#{ Regexp.escape("(#{ip})") }"`.strip.lines
  puts connected_devs.inspect
  return if who_lines.length == 0
  connected_devs.find{|d| who_lines.find{|l| l =~ / #{d} / } }
end
get_ip_from_device(devname) click to toggle source
# File lib/sesh/tmux_control.rb, line 131
def get_ip_from_device(devname)
  ip_line = `who -a 2> /dev/null | grep " #{devname} "`.strip
  return '127.0.0.1' unless ip_line.length > 0 && ip_line =~ /\)$/
  ip_line.split('(')[-1][0..-2]
end
interrupt_and_send_command_to_pane!(pane, command) click to toggle source
# File lib/sesh/tmux_control.rb, line 194
def interrupt_and_send_command_to_pane!(pane, command)
  interrupt_and_send_keys_to_pane!(pane, "\"#{command}\" Enter") end
interrupt_and_send_command_to_project!(command) click to toggle source
# File lib/sesh/tmux_control.rb, line 190
def interrupt_and_send_command_to_project!(command)
  send_interrupt!; send_command_to_project!(command) end
interrupt_and_send_keys_to_pane!(pane, keys) click to toggle source
# File lib/sesh/tmux_control.rb, line 185
def interrupt_and_send_keys_to_pane!(pane, keys)
  move_cursor_to_pane_and_interrupt! pane
  send_keys_to_project! keys end
interrupt_and_send_keys_to_project!(keys) click to toggle source
# File lib/sesh/tmux_control.rb, line 180
def interrupt_and_send_keys_to_project!(keys)
  send_interrupt!; send_keys_to_project! keys end
issue_start_command!() click to toggle source

pn = @project.gsub ‘-’, ‘-’ “[t]mux.*[#{pn}]#{pn}” end

# File lib/sesh/tmux_control.rb, line 31
    def issue_start_command!
      # Add bundle exec to the sesh begin command for dev purposes.
      cmd = Sesh.format_command <<-BASH
      tmux -S "#{@socket_file}" new-session -d "eval \\"\$SHELL -l -c 'rvm use default; sesh begin #{@project}'\\"" 2>&1
      BASH
      output = `#{cmd}`.strip
      return true if $? && output.length == 0
      Logger.warn "Tmux failed to start with the following error: #{output}"; false
    end
issue_stop_command!() click to toggle source
# File lib/sesh/tmux_control.rb, line 41
def issue_stop_command!
  # puts 'issuing stop command...'
  output = `ps -ef | grep "[t]mux -u attach-session -t #{Regexp.escape(@project)}\\$" | grep -v grep | awk '{print $2}' | xargs kill -9`
  puts "stop command issued! Output: #{output}"
  output
end
kill_process!(pid) click to toggle source
# File lib/sesh/tmux_control.rb, line 98
def kill_process!(pid); `kill -9 #{pid} 2>&1` end
kill_running_processes() click to toggle source
# File lib/sesh/tmux_control.rb, line 82
def kill_running_processes
  pane_count = `tmux list-panes -s -F "\#{pane_pid} \#{pane_current_command}" -t "#{@project}" 2>/dev/null`.strip.lines.count
  return if pane_count == 0
  pane_count.times{|i| move_cursor_to_pane_and_interrupt! i; sleep 0.1 }
  sleep 1; puts 'Killing pids from session...'
  obtain_pids_from_session.each{|pid|
    puts `ps aux | grep #{pid} | grep -v grep`.strip
    kill_process! pid }
  puts 'All pids from session have been killed.'
  # if File.exists? @options[:pids_file]
  #   File.readlines(@options[:pids_file]).each{|pid|
  #     puts "Killing #{pid}"
  #     kill_process! pid }
  #   File.delete @options[:pids_file]
  # end
end
list_running_processes() click to toggle source
# File lib/sesh/tmux_control.rb, line 78
def list_running_processes
  obtain_pids_from_session.each{|pid|
    puts `ps aux | grep #{pid} | grep -v grep`.strip }
end
move_cursor_to_pane!(pane) click to toggle source
# File lib/sesh/tmux_control.rb, line 196
def move_cursor_to_pane!(pane); send_keys_to_project! "C-a q #{pane}" end
move_cursor_to_pane_and_interrupt!(pane) click to toggle source
# File lib/sesh/tmux_control.rb, line 197
def move_cursor_to_pane_and_interrupt!(pane)
  move_cursor_to_pane!(pane); send_interrupt! end
obtain_child_pids_from_pid(pid) click to toggle source
# File lib/sesh/tmux_control.rb, line 71
def obtain_child_pids_from_pid(pid)
  output = `ps -ef | grep #{pid} | grep -v grep | grep -v "sesh begin #{@project}" | awk '{print $2}'`.strip.lines.map(&:strip)
  output -= [pid]
  output += output.map{|cpid| obtain_child_pids_from_pid(cpid) - [pid] }.flatten
  output.reverse
end
obtain_pids_from_session() click to toggle source
# File lib/sesh/tmux_control.rb, line 50
def obtain_pids_from_session
  tmux_processes =
    `tmux list-panes -s -F "\#{pane_pid} \#{pane_current_command}" -t "#{@project}" 2> /dev/null | grep -v tmux | awk '{print $1}'`.strip.lines.map(&:strip) +
    `tmux -S "#{@socket_file}" list-panes -s -F "\#{pane_pid} \#{pane_current_command}" 2> /dev/null | grep -v tmux | awk '{print $1}'`.strip.lines.map(&:strip)
  tmux_processes.delete_if {|pid| `ps aux | grep #{pid} | grep -v grep | grep -v "sesh begin #{@project}"`.strip.length == 0 }
  puts; puts "Tmux Processes:"
  tmux_processes.each{|pid| puts `ps aux | grep #{pid} | grep -v grep`.strip }
  return [] unless tmux_processes.any?
  spring_processes = []; other_processes = []
  spring_app_pid = `ps -ef | grep "[s]pring app .*| #{@project} |" | grep -v grep | awk '{print $2}'`.strip
  spring_processes += `ps -ef | grep #{spring_app_pid} | grep -v grep | grep -v "[s]pring app" | awk '{print $2}'`.strip.lines.map(&:strip) if spring_app_pid.length > 0
  spring_processes += `ps -ef | grep "[s]pring.*| #{@project} |" | grep -v grep | awk '{print $2}'`.strip.lines.map(&:strip)
  puts; puts 'Spring Processes:'
  spring_processes.each{|pid| puts `ps aux | grep #{pid} | grep -v grep`.strip }
  tmux_processes.each{|pid|
    other_processes += obtain_child_pids_from_pid(pid) - tmux_processes }
  puts; puts 'Other Processes:'
  other_processes.each{|pid| puts `ps aux | grep #{pid} | grep -v grep`.strip }
  puts
  ( spring_processes + other_processes + tmux_processes ).uniq
end
options() click to toggle source
# File lib/sesh/tmux_control.rb, line 243
def options; @options end
project() click to toggle source

Getter methods for passthru to SshControl class

# File lib/sesh/tmux_control.rb, line 242
def project; @project end
project_name_matcher() click to toggle source

‘ps aux | grep “#{project_name_matcher}”`.strip.length > 0 end

# File lib/sesh/tmux_control.rb, line 25
def project_name_matcher
  "[t]mux.*#{Regexp.escape(@project)}.*"
end
restart_project!() click to toggle source
# File lib/sesh/tmux_control.rb, line 126
def restart_project!; stop_project!; sleep 0.5; start_project! end
send_command_to_pane!(pane, command) click to toggle source
# File lib/sesh/tmux_control.rb, line 192
def send_command_to_pane!(pane, command)
  send_keys_to_pane! pane, "\"#{command}\" Enter" end
send_command_to_project!(command) click to toggle source
# File lib/sesh/tmux_control.rb, line 188
def send_command_to_project!(command)
  send_keys_to_project! "\"#{command}\" Enter" end
send_interrupt!() click to toggle source
# File lib/sesh/tmux_control.rb, line 179
def send_interrupt!; send_keys_to_project! 'C-c' end
send_keys_to_pane!(pane, keys) click to toggle source
# File lib/sesh/tmux_control.rb, line 182
def send_keys_to_pane!(pane, keys)
  move_cursor_to_pane! pane
  send_keys_to_project! keys end
send_keys_to_project!(keys) click to toggle source
# File lib/sesh/tmux_control.rb, line 176
def send_keys_to_project!(keys)
  `tmux -S "#{@socket_file}" send-keys #{keys}`.strip.length == 0
end
start_project!() click to toggle source
# File lib/sesh/tmux_control.rb, line 103
def start_project!
  if already_running?
    Logger.fatal "Sesh project '#{@project}' is already running!" end
  Logger.info "Starting Sesh project '#{@project}'..."
  kill_running_processes
  if issue_start_command! && Logger.show_progress_until(-> { already_running? })
    sleep 1
    if already_running?
      Logger.success 'Sesh started successfully.'
      puts
    else Logger.fatal 'Sesh failed to start!' end
  else Logger.fatal 'Sesh failed to start after ten seconds!' end
end
stop_project!() click to toggle source
# File lib/sesh/tmux_control.rb, line 116
def stop_project!
  unless already_running?
    Logger.fatal "Sesh project '#{@project}' is not running!" end
  Logger.info "Stopping Sesh project '#{@project}'..."
  kill_running_processes
  if issue_stop_command! && Logger.show_progress_until(-> { !already_running? })
    Logger.success 'Sesh stopped successfully.'
    puts
  else Logger.fatal 'Sesh failed to stop after ten seconds!' end
end