(List
  (Com {[LIT_CHARS set]} {[LIT_CHARS -o]} {[LIT_CHARS errexit]}  )
  (Com {[LIT_CHARS set]} {[LIT_CHARS -o]} {[LIT_CHARS nounset]}  )
  (Com {[LIT_CHARS set]} {[LIT_CHARS -o]} {[LIT_CHARS pipefail]}  )
  (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "kube-push.sh is currently broken; see https://github.com/kubernetes/kubernetes/issues/17397"]]}  )
  (Com {[LIT_CHARS exit]} {[LIT_CHARS 1]}  )
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('KUBE_ROOT', {[ComSub (Com {[LIT_CHARS dirname]} {[DQ [VarSub BASH_SOURCE]]})] [LIT_CHARS /..]})])
  (If
    (Com {[LIT_DBRACKET_LIKE "["]} {[LIT_CHARS -f]} {[DQ [VarSub KUBE_ROOT][LIT_CHARS /cluster/env.sh]]} {[LIT_DBRACKET_LIKE "]"]}    )
    (Com {[LIT_CHARS source]} {[DQ [VarSub KUBE_ROOT][LIT_CHARS /cluster/env.sh]]}    )
  )
  (Com {[LIT_CHARS source]} {[DQ [VarSub KUBE_ROOT][LIT_CHARS /cluster/kube-util.sh]]}  )
  (FunctionDef usage []
    (List
      (Com {[LIT_CHARS echo]} {[DQ [VarSub 0][LIT_CHARS " [-m|-n <node id>] <version>"]]}      )
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "  Updates Kubernetes binaries. Can be done for all components (by default), master(-m) or specified node(-n)."]]}      )
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "  If the version is not specified will try to use local binaries."]]}      )
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "  Warning: upgrading single node is experimental"]]}      )
    )
  )
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('push_to_master', {[LIT_CHARS false]})])
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('push_to_node', {[LIT_CHARS false]})])
  (While
    (Com {[LIT_CHARS getopts]} {[DQ [LIT_CHARS "mn:h"]]} {[LIT_CHARS opt]}    )
    (Case to_match={[VarSub opt]}, pat_word_list=[[{[LIT_CHARS m]}], [{[LIT_CHARS n]}], [{[LIT_CHARS h]}], [{[\ LIT_ESCAPED_CHAR "\\?"]}]]
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('push_to_master', {[LIT_CHARS true]})])
      (List
        (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('push_to_node', {[LIT_CHARS true]})])
        (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('node_id', {[DQ [VarSub OPTARG]]})])
      )
      (List
        (Com {[LIT_CHARS usage]}        )
        (Com {[LIT_CHARS exit]} {[LIT_CHARS 0]}        )
      )
      (List
        (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Invalid option: -"][VarSub OPTARG]]}
          <
          (DescriptorRedirectNode target={[LIT_CHARS 2]} <REDIR_GREATAND ">&"> 1),
          >
        )
        (Com {[LIT_CHARS usage]}        )
        (Com {[LIT_CHARS exit]} {[LIT_CHARS 1]}        )
      )
    )
  )
  (Com {[LIT_CHARS shift]} {[ArithSub {A2 AS_OP_MINUS {A Atom NODE_ARITH_WORD {[VarSub OPTIND]}} {A Atom NODE_ARITH_WORD {[AS_NUM_LITERAL 1]}}}]}  )
  (If
    (AndOr OP_AND_IF
      (DBracket {B2 BINARY_STRING_EQUAL {[DQ [VarSub push_to_master]]} {[DQ [LIT_CHARS true]]}})
      (DBracket {B2 BINARY_STRING_EQUAL {[DQ [VarSub push_to_node]]} {[DQ [LIT_CHARS true]]}})
    )
    (List
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Only one of options -m -n should be specified"]]}      )
      (Com {[LIT_CHARS usage]}      )
      (Com {[LIT_CHARS exit]} {[LIT_CHARS 1]}      )
    )
  )
  (Com {[LIT_CHARS verify-prereqs]}  )
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('KUBE_VERSION', {[VarSub 1 test_op=VS_TEST_HYPHEN {}]})])
  (If
    (AndOr OP_AND_IF
      (DBracket {B2 BINARY_STRING_EQUAL {[DQ [VarSub push_to_master]]} {[DQ [LIT_CHARS false]]}})
      (DBracket {B2 BINARY_STRING_EQUAL {[DQ [VarSub push_to_node]]} {[DQ [LIT_CHARS false]]}})
    )
    (List
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Updating cluster using provider: "][VarSub KUBERNETES_PROVIDER]]}      )
      (Com {[LIT_CHARS kube-push]}      )
    )
  )
  (If
    (DBracket {B2 BINARY_STRING_EQUAL {[DQ [VarSub push_to_master]]} {[DQ [LIT_CHARS true]]}})
    (List
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Updating master to version "][VarSub KUBE_VERSION test_op=VS_TEST_COLON_HYPHEN {[DQ [LIT_CHARS dev]]}]]}      )
      (Com {[LIT_CHARS prepare-push]} {[LIT_CHARS false]}      )
      (Com {[LIT_CHARS push-master]}      )
    )
  )
  (If
    (DBracket {B2 BINARY_STRING_EQUAL {[DQ [VarSub push_to_node]]} {[DQ [LIT_CHARS true]]}})
    (List
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Updating node "][VarSub node_id][LIT_CHARS " to version "][VarSub KUBE_VERSION test_op=VS_TEST_COLON_HYPHEN {[DQ [LIT_CHARS dev]]}]]}      )
      (Com {[LIT_CHARS prepare-push]} {[LIT_CHARS true]}      )
      (Com {[LIT_CHARS push-node]} {[VarSub node_id]}      )
    )
  )
  (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "Validating cluster post-push..."]]}  )
  (Com {[DQ [VarSub KUBE_ROOT][LIT_CHARS /cluster/validate-cluster.sh]]}  )
  (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS Done]]}  )
)