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module SupplyDrop
class Rsync
class << self
def command(from, to, options={})
flags = ['-az']
flags << '--delete' if options[:delete]
flags << excludes(options[:excludes]) if options.has_key?(:excludes)
flags << ssh_options(options[:ssh]) if options.has_key?(:ssh)
"rsync #{flags.compact.join(' ')} #{from} #{to}"
end
def remote_address(user, host, path)
user_with_host = [user, host].compact.join('@')
[user_with_host, path].join(':')
end
def excludes(patterns)
[patterns].flatten.map { |p| "--exclude=#{p}" }
end
def ssh_options(options)
mapped_options = options.map do |key, value|
next unless value
#
# for a list of the options normally support by Net::SSH (and thus Capistrano), see
# http://net-ssh.github.com/net-ssh/classes/Net/SSH.html#method-c-start
#
case key
when :keys then [value].flatten.select { |k| File.exist?(k) }.map { |k| "-i #{k}" }
when :config then "-F #{value}"
when :port then "-p #{value}"
when :user_known_hosts_file then "-o 'UserKnownHostsFile=#{value}'"
when :global_known_hosts_file then "-o 'GlobalKnownHostsFile=#{value}'"
when :host_key_alias then "-o 'HostKeyAlias=#{value}'"
when :paranoid then "-o 'StrictHostKeyChecking=yes'"
when :host_name then "-o 'HostName=#{value}'"
end
end.compact
%[-e "ssh #{mapped_options.join(' ')}"] unless mapped_options.empty?
end
end
end
end
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