class SSHKit::Backend::Netssh
Attributes
pool[RW]
Public Class Methods
config()
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# File lib/sshkit/backends/netssh.rb, line 63 def config @config ||= Configuration.new end
configure() { |config| ... }
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# File lib/sshkit/backends/netssh.rb, line 59 def configure yield config end
Public Instance Methods
download!(remote, local=nil, options = {})
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# File lib/sshkit/backends/netssh.rb, line 42 def download!(remote, local=nil, options = {}) summarizer = transfer_summarizer('Downloading') with_ssh do |ssh| ssh.scp.download!(remote, local, options, &summarizer) end end
upload!(local, remote, options = {})
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# File lib/sshkit/backends/netssh.rb, line 35 def upload!(local, remote, options = {}) summarizer = transfer_summarizer('Uploading') with_ssh do |ssh| ssh.scp.upload!(local, remote, options, &summarizer) end end
Private Instance Methods
execute_command(cmd)
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# File lib/sshkit/backends/netssh.rb, line 92 def execute_command(cmd) output.log_command_start(cmd) cmd.started = true exit_status = nil with_ssh do |ssh| ssh.open_channel do |chan| chan.request_pty if Netssh.config.pty chan.exec cmd.to_command do |_ch, _success| chan.on_data do |ch, data| cmd.on_stdout(ch, data) output.log_command_data(cmd, :stdout, data) end chan.on_extended_data do |ch, _type, data| cmd.on_stderr(ch, data) output.log_command_data(cmd, :stderr, data) end chan.on_request("exit-status") do |_ch, data| exit_status = data.read_long end #chan.on_request("exit-signal") do |ch, data| # # TODO: This gets called if the program is killed by a signal # # might also be a worthwhile thing to report # exit_signal = data.read_string.to_i # warn ">>> " + exit_signal.inspect # output.log_command_killed(cmd, exit_signal) #end chan.on_open_failed do |_ch| # TODO: What do do here? # I think we should raise something end chan.on_process do |_ch| # TODO: I don't know if this is useful end chan.on_eof do |_ch| # TODO: chan sends EOF before the exit status has been # writtend end end chan.wait end ssh.loop end # Set exit_status and log the result upon completion if exit_status cmd.exit_status = exit_status output.log_command_exit(cmd) end end
transfer_summarizer(action)
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# File lib/sshkit/backends/netssh.rb, line 70 def transfer_summarizer(action) last_name = nil last_percentage = nil proc do |_ch, name, transferred, total| percentage = (transferred.to_f * 100 / total.to_f) unless percentage.nan? message = "#{action} #{name} #{percentage.round(2)}%" percentage_r = (percentage / 10).truncate * 10 if percentage_r > 0 && (last_name != name || last_percentage != percentage_r) info message last_name = name last_percentage = percentage_r else debug message end else warn "Error calculating percentage #{transferred}/#{total}, " << "is #{name} empty?" end end end
with_ssh(&block)
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# File lib/sshkit/backends/netssh.rb, line 141 def with_ssh(&block) host.ssh_options = self.class.config.ssh_options.merge(host.ssh_options || {}) self.class.pool.with( Net::SSH.method(:start), String(host.hostname), host.username, host.netssh_options, &block ) end