class Chake::Backend
Public Class Methods
backend_name()
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# File lib/chake/backend.rb, line 61 def self.backend_name name.split("::").last.downcase end
get(name)
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# File lib/chake/backend.rb, line 70 def self.get(name) backend = @backends.find { |b| b.backend_name == name } backend || raise(ArgumentError.new("Invalid backend name: #{name}")) end
inherited(subclass)
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# File lib/chake/backend.rb, line 65 def self.inherited(subclass) @backends ||= [] @backends << subclass end
Public Instance Methods
rsync()
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# File lib/chake/backend.rb, line 16 def rsync ['rsync'] end
rsync_dest()
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# File lib/chake/backend.rb, line 20 def rsync_dest node.path + '/' end
run(cmd)
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# File lib/chake/backend.rb, line 24 def run(cmd) printf "%#{Node.max_node_name_length}s: $ %s\n", node.hostname, cmd io = IO.popen(command_runner + ['/bin/sh'], mode='w+', eer: [:child, :out]) io.write(cmd) io.close_write io.each_line do |line| printf "%#{Node.max_node_name_length}s: %s\n", node.hostname, line.gsub(/\s*$/, '') end io.close if $? status = $?.exitstatus if status != 0 raise CommandFailed.new([node.hostname, 'FAILED with exit status %d' % status].join(': ')) end end end
run_as_root(cmd)
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# File lib/chake/backend.rb, line 45 def run_as_root(cmd) if node.remote_username == 'root' run(cmd) else run('sudo ' + cmd) end end
run_shell()
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# File lib/chake/backend.rb, line 41 def run_shell system(*shell_command) end
scp()
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# File lib/chake/backend.rb, line 8 def scp ['scp'] end
scp_dest()
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# File lib/chake/backend.rb, line 12 def scp_dest '' end
skip?()
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# File lib/chake/backend.rb, line 57 def skip? false end
to_s()
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# File lib/chake/backend.rb, line 53 def to_s self.class.backend_name end