Capistrano & Bash: ignore command exit status

Question

I\'m using Capistrano run a remote task. My task looks like this:

task :my_task do
  run \"my_command\"
end

My problem is that if my_comm

Answer 1

You'll need to patch the Capistrano code if you want it to do different things with the exit codes; it's hard-coded to raise an exception if the exit status is not zero.

Here's the relevant portion of lib/capistrano/command.rb. The line that starts with if (failed... is the important one. Basically it says if there are any nonzero return values, raise an error.

# Processes the command in parallel on all specified hosts. If the command
# fails (non-zero return code) on any of the hosts, this will raise a
# Capistrano::CommandError.
def process!
  loop do
    break unless process_iteration { @channels.any? { |ch| !ch[:closed] } }
  end

  logger.trace "command finished" if logger

  if (failed = @channels.select { |ch| ch[:status] != 0 }).any?
    commands = failed.inject({}) { |map, ch| (map[ch[:command]] ||= []) << ch[:server]; map }
    message = commands.map { |command, list| "#{command.inspect} on #{list.join(',')}" }.join("; ")
    error = CommandError.new("failed: #{message}")
    error.hosts = commands.values.flatten
    raise error
  end

  self
end