Executes the given command on the first server targetted by the current task, collects it's stdout into a string, and returns the string. The command is invoked via invoke_command.
# File lib/capistrano/configuration/actions/inspect.rb, line 32 def capture(command, options={}) output = "" invoke_command(command, options.merge(:once => true, :eof => !command.include?(sudo))) do |ch, stream, data| case stream when :out then output << data when :err then warn "[err :: #{ch[:server]}] #{data}" end end output end
Streams the result of the command from all servers that are the target of the current task. All these streams will be joined into a single one, so you can, say, watch 10 log files as though they were one. Do note that this is quite expensive from a bandwidth perspective, so use it with care.
The command is invoked via invoke_command.
Usage:
desc "Run a tail on multiple log files at the same time" task :tail_fcgi, :roles => :app do stream "tail -f #{shared_path}/log/fastcgi.crash.log" end
# File lib/capistrano/configuration/actions/inspect.rb, line 22 def stream(command, options={}) invoke_command(command, options.merge(:eof => !command.include?(sudo))) do |ch, stream, out| puts out if stream == :out warn "[err :: #{ch[:server]}] #{out}" if stream == :err end end
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