(command.CommandList
  children: [
    (C {(Id.KW_Set set)} {(-o)} {(errexit)})
    (C {(Id.KW_Set set)} {(-o)} {(nounset)})
    (C {(Id.KW_Set set)} {(-o)} {(pipefail)})
    (C {(echo)} 
      {
        (DQ 
          (
'kube-push.sh is currently broken; see https://github.com/kubernetes/kubernetes/issues/17397'
          )
        )
      }
    )
    (command.ControlFlow token:(Token id:Id.ControlFlow_Exit val:exit span_id:82) arg_word:{(1)})
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:KUBE_ROOT)
          op: assign_op.Equal
          rhs: 
            {
              (command_sub
                left_token: (Token id:Id.Left_DollarParen val:'$(' span_id:88)
                command_list: 
                  (command.CommandList
                    children: [(C {(dirname)} {(DQ (${ Id.VSub_Name BASH_SOURCE))})]
                  )
              ) (/..)
            }
          spids: [87]
        )
      ]
    )
    (command.If
      arms: [
        (if_arm
          cond: [
            (command.Sentence
              child: 
                (C {(Id.Lit_LBracket '[')} {(-f)} {(DQ (${ Id.VSub_Name KUBE_ROOT) (/cluster/env.sh))} 
                  {(Id.Lit_RBracket ']')}
                )
              terminator: (Token id:Id.Op_Semi val:';' span_id:114)
            )
          ]
          action: [(C {(source)} {(DQ (${ Id.VSub_Name KUBE_ROOT) (/cluster/env.sh))})]
          spids: [100 116]
        )
      ]
    )
    (C {(source)} {(DQ (${ Id.VSub_Name KUBE_ROOT) (/cluster/kube-util.sh))})
    (command.ShFunction
      name: usage
      body: 
        (command.BraceGroup
          children: [
            (C {(echo)} {(DQ (${ Id.VSub_Number 0) (' [-m|-n <node id>] <version>'))})
            (C {(echo)} 
              {
                (DQ 
                  (
'  Updates Kubernetes binaries. Can be done for all components (by default), master(-m) or specified node(-n).'
                  )
                )
              }
            )
            (C {(echo)} {(DQ ('  If the version is not specified will try to use local binaries.'))})
            (C {(echo)} {(DQ ('  Warning: upgrading single node is experimental'))})
          ]
        )
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:push_to_master)
          op: assign_op.Equal
          rhs: {(false)}
          spids: [183]
        )
      ]
    )
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:push_to_node)
          op: assign_op.Equal
          rhs: {(false)}
          spids: [186]
        )
      ]
    )
    (command.WhileUntil
      keyword: (Token id:Id.KW_While val:while span_id:190)
      cond: [
        (command.Sentence
          child: (C {(getopts)} {(DQ ('mn:h'))} {(opt)})
          terminator: (Token id:Id.Op_Semi val:';' span_id:199)
        )
      ]
      body: 
        (command.DoGroup
          children: [
            (command.Case
              to_match: {(${ Id.VSub_Name opt)}
              arms: [
                (case_arm
                  pat_list: [{(m)}]
                  action: [
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name name:push_to_master)
                          op: assign_op.Equal
                          rhs: {(true)}
                          spids: [217]
                        )
                      ]
                    )
                  ]
                  spids: [213 214 219 -1]
                )
                (case_arm
                  pat_list: [{(n)}]
                  action: [
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name name:push_to_node)
                          op: assign_op.Equal
                          rhs: {(true)}
                          spids: [226]
                        )
                      ]
                    )
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name name:node_id)
                          op: assign_op.Equal
                          rhs: {(DQ ($ Id.VSub_DollarName '$OPTARG'))}
                          spids: [230]
                        )
                      ]
                    )
                  ]
                  spids: [222 223 234 -1]
                )
                (case_arm
                  pat_list: [{(h)}]
                  action: [
                    (C {(usage)})
                    (command.ControlFlow
                      token: (Token id:Id.ControlFlow_Exit val:exit span_id:244)
                      arg_word: {(0)}
                    )
                  ]
                  spids: [237 238 247 -1]
                )
                (case_arm
                  pat_list: [
                    {
                      (word_part.EscapedLiteral
                        token: (Token id:Id.Lit_EscapedChar val:'\\?' span_id:250)
                      )
                    }
                  ]
                  action: [
                    (command.Simple
                      words: [{(echo)} {(DQ ('Invalid option: -') ($ Id.VSub_DollarName '$OPTARG'))}]
                      redirects: [
                        (redir.Redir
                          op: (Token id:Id.Redir_GreatAnd val:'>&' span_id:261)
                          fd: -1
                          arg_word: {(2)}
                        )
                      ]
                    )
                    (C {(usage)})
                    (command.ControlFlow
                      token: (Token id:Id.ControlFlow_Exit val:exit span_id:268)
                      arg_word: {(1)}
                    )
                  ]
                  spids: [250 251 271 -1]
                )
              ]
            )
          ]
        )
    )
    (C {(shift)} 
      {
        (word_part.ArithSub
          anode: 
            (arith_expr.Binary
              op_id: Id.Arith_Minus
              left: (arith_expr.VarRef token:(Token id:Id.Lit_ArithVarLike val:OPTIND span_id:281))
              right: (arith_expr.ArithWord w:{(Id.Lit_Digits 1)})
            )
        )
      }
    )
    (command.If
      arms: [
        (if_arm
          cond: [
            (command.Sentence
              child: 
                (command.AndOr
                  ops: [Id.Op_DAmp]
                  children: [
                    (command.DBracket
                      expr: 
                        (bool_expr.Binary
                          op_id: Id.BoolBinary_GlobDEqual
                          left: {(DQ (${ Id.VSub_Name push_to_master))}
                          right: {(DQ (true))}
                        )
                    )
                    (command.DBracket
                      expr: 
                        (bool_expr.Binary
                          op_id: Id.BoolBinary_GlobDEqual
                          left: {(DQ (${ Id.VSub_Name push_to_node))}
                          right: {(DQ (true))}
                        )
                    )
                  ]
                )
              terminator: (Token id:Id.Op_Semi val:';' span_id:323)
            )
          ]
          action: [
            (C {(echo)} {(DQ ('Only one of options -m -n should be specified'))})
            (C {(usage)})
            (command.ControlFlow
              token: (Token id:Id.ControlFlow_Exit val:exit span_id:338)
              arg_word: {(1)}
            )
          ]
          spids: [288 325]
        )
      ]
    )
    (C {(verify-prereqs)})
    (C {(verify-kube-binaries)})
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:KUBE_VERSION)
          op: assign_op.Equal
          rhs: 
            {
              (braced_var_sub
                token: (Token id:Id.VSub_Number val:1 span_id:351)
                suffix_op: (suffix_op.Unary op_id:Id.VTest_Hyphen arg_word:{})
              )
            }
          spids: [349]
        )
      ]
    )
    (command.If
      arms: [
        (if_arm
          cond: [
            (command.Sentence
              child: 
                (command.AndOr
                  ops: [Id.Op_DAmp]
                  children: [
                    (command.DBracket
                      expr: 
                        (bool_expr.Binary
                          op_id: Id.BoolBinary_GlobDEqual
                          left: {(DQ (${ Id.VSub_Name push_to_master))}
                          right: {(DQ (false))}
                        )
                    )
                    (command.DBracket
                      expr: 
                        (bool_expr.Binary
                          op_id: Id.BoolBinary_GlobDEqual
                          left: {(DQ (${ Id.VSub_Name push_to_node))}
                          right: {(DQ (false))}
                        )
                    )
                  ]
                )
              terminator: (Token id:Id.Op_Semi val:';' span_id:391)
            )
          ]
          action: [
            (C {(echo)} 
              {
                (DQ ('Updating cluster using provider: ') 
                  ($ Id.VSub_DollarName '$KUBERNETES_PROVIDER')
                )
              }
            )
            (C {(kube-push)})
          ]
          spids: [356 393]
        )
      ]
    )
    (command.If
      arms: [
        (if_arm
          cond: [
            (command.Sentence
              child: 
                (command.DBracket
                  expr: 
                    (bool_expr.Binary
                      op_id: Id.BoolBinary_GlobDEqual
                      left: {(DQ (${ Id.VSub_Name push_to_master))}
                      right: {(DQ (true))}
                    )
                )
              terminator: (Token id:Id.Op_Semi val:';' span_id:426)
            )
          ]
          action: [
            (C {(echo)} 
              {
                (DQ ('Updating master to version ') 
                  (braced_var_sub
                    token: (Token id:Id.VSub_Name val:KUBE_VERSION span_id:436)
                    suffix_op: (suffix_op.Unary op_id:Id.VTest_ColonHyphen arg_word:{(DQ (dev))})
                  )
                )
              }
            )
            (C {(prepare-push)} {(false)})
            (C {(push-master)})
          ]
          spids: [409 428]
        )
      ]
    )
    (command.If
      arms: [
        (if_arm
          cond: [
            (command.Sentence
              child: 
                (command.DBracket
                  expr: 
                    (bool_expr.Binary
                      op_id: Id.BoolBinary_GlobDEqual
                      left: {(DQ (${ Id.VSub_Name push_to_node))}
                      right: {(DQ (true))}
                    )
                )
              terminator: (Token id:Id.Op_Semi val:';' span_id:472)
            )
          ]
          action: [
            (C {(echo)} 
              {
                (DQ ('Updating node ') ($ Id.VSub_DollarName '$node_id') (' to version ') 
                  (braced_var_sub
                    token: (Token id:Id.VSub_Name val:KUBE_VERSION span_id:484)
                    suffix_op: (suffix_op.Unary op_id:Id.VTest_ColonHyphen arg_word:{(DQ (dev))})
                  )
                )
              }
            )
            (C {(prepare-push)} {(true)})
            (C {(push-node)} {($ Id.VSub_DollarName '$node_id')})
          ]
          spids: [455 474]
        )
      ]
    )
    (C {(echo)} {(DQ ('Validating cluster post-push...'))})
    (C {(DQ (${ Id.VSub_Name KUBE_ROOT) (/cluster/validate-cluster.sh))})
    (C {(echo)} {(DQ (Done))})
  ]
)