Class: Rigger::TaskExecutor
- Inherits:
-
Object
- Object
- Rigger::TaskExecutor
show all
- Defined in:
- lib/rigger/task_executor.rb
Defined Under Namespace
Classes: SFTPTransferWrapper
Instance Method Summary
collapse
Constructor Details
#initialize(task, servers, execution_service, config) ⇒ TaskExecutor
Returns a new instance of TaskExecutor.
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# File 'lib/rigger/task_executor.rb', line 33
def initialize(task, servers, execution_service, config)
@task = task
@current_servers = servers
@execution_service = execution_service
@config = config
end
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Instance Method Details
#call ⇒ Object
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# File 'lib/rigger/task_executor.rb', line 40
def call
instance_eval(&@task.block)
end
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#capture(command) ⇒ Object
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# File 'lib/rigger/task_executor.rb', line 62
def capture(command)
"".tap do |captured|
execute(command, [@current_servers.first]) do |ch|
ch.on_data do |c, data|
captured << data
end
ch.on_extended_data do |c, type, data|
data.split("\n").each do |line|
puts " ** [#{server.connection_string} :: stderr] #{line}"
$stderr.flush
end
end
end
end
end
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#fetch(name, default) ⇒ Object
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# File 'lib/rigger/task_executor.rb', line 110
def fetch(name, default)
@config.fetch(name, default)
end
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#get(name) ⇒ Object
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# File 'lib/rigger/task_executor.rb', line 102
def get(name)
@config.get(name)
end
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#put(data, path) ⇒ Object
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# File 'lib/rigger/task_executor.rb', line 114
def put(data, path)
servers = @current_servers.dup
channels = servers.map do |s|
callback = Proc.new do |channel, name, sent, total|
puts "[#{channel[:host]}] #{name}" if sent == 0
end
SFTPTransferWrapper.new(s.connection) do |sftp|
io = StringIO.new(data.respond_to?(:read) ? data.read : data)
sftp.upload(io, path, {}) do |status, we|
if status == :finish
sftp.close_channel
end
end
end
end
puts " * transerring data to #{path}"
connections = servers.dup
failing_servers = []
errors = []
loop do
connections.delete_if do |server|
begin
!server.connection.process(0.1) { |s| s.busy? }
rescue Net::SFTP::StatusException => e
failing_servers << server
errors << e.message
end
end
break if connections.empty?
end
if !failing_servers.empty?
raise CommandError, "Upload failed on #{failing_servers.map { |s| s.connection_string }.inspect} with #{errors.join(", ")}."
end
puts " * finished"
end
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#run(command) ⇒ Object
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# File 'lib/rigger/task_executor.rb', line 44
def run(command)
execute(command, @current_servers) do |ch|
ch.on_data do |c, data|
data.split("\n").each do |line|
puts " ** [#{ch[:host]} :: stdout] #{line}"
$stdout.flush
end
end
ch.on_extended_data do |c, type, data|
data.split("\n").each do |line|
puts " ** [#{ch[:host]} :: stderr] #{line}"
$stderr.flush
end
end
end
end
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#run_locally(command) ⇒ Object
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# File 'lib/rigger/task_executor.rb', line 83
def run_locally(command)
puts " * executing `#{command}` locally"
status = POpen4.popen4(command) do |stdout, stderr, stdin, pid|
stdout.each_line do |line|
puts " ** [locally :: stdout] #{line}"
end
stderr.each_line do |line|
puts " ** [locally :: stderr] #{line}"
end
end
if status && status.exitstatus == 0
puts " * command finished"
else
raise CommandError, "Local command `#{command}` failed."
end
end
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#run_task(task_name) ⇒ Object
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# File 'lib/rigger/task_executor.rb', line 79
def run_task(task_name)
@execution_service.call(task_name)
end
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#set(name, value) ⇒ Object
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# File 'lib/rigger/task_executor.rb', line 106
def set(name, value)
@config.set(name, value)
end
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