#!/bin/bash

# Copyright 2016 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

set -o errexit
set -o nounset
set -o pipefail

global KUBE_ROOT := $(KUBE_ROOT:-$(dirname "${BASH_SOURCE}")/..)
source "$(KUBE_ROOT)/cluster/kube-util.sh"
source "$(KUBE_ROOT)/cluster/clientbin.sh"

# If KUBEADM_PATH isn't set, gather up the list of likely places and use ls
# to find the latest one.
if [[ -z "${KUBEADM_PATH:-}" ]] {
  global kubeadm := $[ get_bin "kubeadm" "cmd/kubeadm]

  if [[ ! -x "$kubeadm" ]] {
    print_error "kubeadm"
    exit 1
  }
} elif [[ ! -x "${KUBEADM_PATH}" ]] {
  do {
    echo "KUBEADM_PATH environment variable set to '$(KUBEADM_PATH)', but "
    echo "this doesn't seem to be a valid executable."
  } >&2
  exit 1
}
global kubeadm := $(KUBEADM_PATH:-${kubeadm})

$(kubeadm) $(@+$@)
(CommandList
  children: [
    (C {(set)} {(-o)} {(errexit)})
    (C {(set)} {(-o)} {(nounset)})
    (C {(set)} {(-o)} {(pipefail)})
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:KUBE_ROOT)
          op: Equal
          rhs: 
            {
              (BracedVarSub
                token: <VSub_Name KUBE_ROOT>
                suffix_op: 
                  (StringUnary
                    op_id: VTest_ColonHyphen
                    arg_word: 
                      {
                        (CommandSubPart
                          command_list: 
                            (CommandList
                              children: [(C {(dirname)} {(DQ (${ VSub_Name BASH_SOURCE))})]
                            )
                          left_token: <Left_CommandSub "$(">
                          spids: [67 75]
                        ) (Lit_Slash /) (..)
                      }
                  )
                spids: [64 78]
              )
            }
          spids: [63]
        )
      ]
      spids: [63]
    )
    (C {(source)} {(DQ (${ VSub_Name KUBE_ROOT) (/cluster/kube-util.sh))})
    (C {(source)} {(DQ (${ VSub_Name KUBE_ROOT) (/cluster/clientbin.sh))})
    (If
      arms: [
        (if_arm
          cond: [
            (Sentence
              child: 
                (DBracket
                  expr: 
                    (BoolUnary
                      op_id: BoolUnary_z
                      child: 
                        {
                          (DQ 
                            (BracedVarSub
                              token: <VSub_Name KUBEADM_PATH>
                              suffix_op: (StringUnary op_id:VTest_ColonHyphen arg_word:{(SQ )})
                              spids: [112 115]
                            )
                          )
                        }
                    )
                )
              terminator: <Op_Semi ";">
            )
          ]
          action: [
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:kubeadm)
                  op: Equal
                  rhs: 
                    {
                      (CommandSubPart
                        command_list: 
                          (CommandList
                            children: [(C {(get_bin)} {(DQ (kubeadm))} {(DQ (cmd/kubeadm))})]
                          )
                        left_token: <Left_CommandSub "$(">
                        spids: [125 137]
                      )
                    }
                  spids: [124]
                )
              ]
              spids: [124]
            )
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DBracket
                          expr: 
                            (LogicalNot
                              child: (BoolUnary op_id:BoolUnary_x child:{(DQ ($ VSub_Name "$kubeadm"))})
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [(C {(print_error)} {(DQ (kubeadm))}) (C {(exit)} {(1)})]
                  spids: [-1 156]
                )
              ]
              spids: [-1 171]
            )
          ]
          spids: [-1 121]
        )
        (if_arm
          cond: [
            (Sentence
              child: 
                (DBracket
                  expr: 
                    (LogicalNot
                      child: (BoolUnary op_id:BoolUnary_x child:{(DQ (${ VSub_Name KUBEADM_PATH))})
                    )
                )
              terminator: <Op_Semi ";">
            )
          ]
          action: [
            (BraceGroup
              children: [
                (C {(echo)} 
                  {
                    (DQ ("KUBEADM_PATH environment variable set to '") (${ VSub_Name KUBEADM_PATH) 
                      ("', but ")
                    )
                  }
                )
                (C {(echo)} {(DQ ("this doesn't seem to be a valid executable."))})
              ]
              redirects: [(Redir op_id:Redir_GreatAnd fd:-1 arg_word:{(2)} spids:[216])]
              spids: [193]
            )
            (C {(exit)} {(1)})
          ]
          spids: [173 190]
        )
      ]
      spids: [-1 224]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:kubeadm)
          op: Equal
          rhs: 
            {
              (DQ 
                (BracedVarSub
                  token: <VSub_Name KUBEADM_PATH>
                  suffix_op: (StringUnary op_id:VTest_ColonHyphen arg_word:{(${ VSub_Name kubeadm)})
                  spids: [228 234]
                )
              )
            }
          spids: [226]
        )
      ]
      spids: [226]
    )
    (C {(DQ (${ VSub_Name kubeadm))} 
      {
        (DQ 
          (BracedVarSub
            token: <VSub_At "@">
            suffix_op: (StringUnary op_id:VTest_Plus arg_word:{($ VSub_At "$@")})
            spids: [245 249]
          )
        )
      }
    )
  ]
)