(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:TOOL_MODE)
          op: assign_op.Equal
          rhs: {<diff>}
          spids: [19]
        )
      ]
    )
    (C {<.>} {<git-mergetool--lib>})
    (command.ShFunction
      name: should_prompt
      body: 
        (command.BraceGroup
          children: [
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:prompt_merge)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (command_sub
                        left_token: <Id.Left_DollarParen '$('>
                        command_list: 
                          (command.CommandList
                            children: [
                              (command.AndOr
                                ops: [Id.Op_DPipe]
                                children: [
                                  (C {<git>} {<config>} {<--bool>} {<mergetool.prompt>})
                                  (C {<echo>} {<true>})
                                ]
                              )
                            ]
                          )
                      )
                    }
                  spids: [41]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:prompt)
                  op: assign_op.Equal
                  rhs: 
                    {
                      (command_sub
                        left_token: <Id.Left_DollarParen '$('>
                        command_list: 
                          (command.CommandList
                            children: [
                              (command.AndOr
                                ops: [Id.Op_DPipe]
                                children: [
                                  (C {<git>} {<config>} {<--bool>} {<difftool.prompt>})
                                  (C {<echo>} {($ Id.VSub_DollarName '$prompt_merge')})
                                ]
                              )
                            ]
                          )
                      )
                    }
                  spids: [59]
                )
              ]
            )
            (command.If
              arms: [
                (if_arm
                  cond: [
                    (C {<test>} {(DQ ($ Id.VSub_DollarName '$prompt'))} {<Id.Lit_Equals '='>} {<true>})
                  ]
                  action: [(C {<test>} {<-z>} {(DQ ($ Id.VSub_DollarName '$GIT_DIFFTOOL_NO_PROMPT'))})]
                  spids: [77 90]
                )
              ]
              else_action: [(C {<test>} {<-n>} {(DQ ($ Id.VSub_DollarName '$GIT_DIFFTOOL_PROMPT'))})]
            )
          ]
        )
    )
    (command.ShFunction
      name: use_ext_cmd
      body: 
        (command.BraceGroup
          children: [(C {<test>} {<-n>} {(DQ ($ Id.VSub_DollarName '$GIT_DIFFTOOL_EXTCMD'))})]
        )
    )
    (command.ShFunction
      name: launch_merge_tool
      body: 
        (command.BraceGroup
          children: [
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:MERGED)
                  op: assign_op.Equal
                  rhs: {(DQ ($ Id.VSub_Number '$1'))}
                  spids: [165]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:LOCAL)
                  op: assign_op.Equal
                  rhs: {(DQ ($ Id.VSub_Number '$2'))}
                  spids: [171]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:REMOTE)
                  op: assign_op.Equal
                  rhs: {(DQ ($ Id.VSub_Number '$3'))}
                  spids: [177]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:BASE)
                  op: assign_op.Equal
                  rhs: {(DQ ($ Id.VSub_Number '$1'))}
                  spids: [183]
                )
              ]
            )
            (command.If
              arms: [
                (if_arm
                  cond: [(C {<should_prompt>})]
                  action: [
                    (C {<printf>} 
                      {(DQ <Id.Lit_Other '\\'> <"nViewing (%s/%s): '%s'"> <Id.Lit_Other '\\'> <n>)} {(DQ ($ Id.VSub_DollarName '$GIT_DIFF_PATH_COUNTER'))} 
                      {(DQ ($ Id.VSub_DollarName '$GIT_DIFF_PATH_TOTAL'))} {(DQ ($ Id.VSub_DollarName '$MERGED'))}
                    )
                    (command.If
                      arms: [
                        (if_arm
                          cond: [(C {<use_ext_cmd>})]
                          action: [
                            (C {<printf>} {(DQ <"Launch '%s' [Y/n]? ">)} 
                              {(DQ ($ Id.VSub_DollarName '$GIT_DIFFTOOL_EXTCMD'))}
                            )
                          ]
                          spids: [230 235]
                        )
                      ]
                      else_action: [
                        (C {<printf>} {(DQ <"Launch '%s' [Y/n]? ">)} 
                          {(DQ ($ Id.VSub_DollarName '$merge_tool'))}
                        )
                      ]
                    )
                    (command.AndOr
                      ops: [Id.Op_DPipe]
                      children: [
                        (C {<read>} {<ans>})
                        (command.ControlFlow
                          token: <Id.ControlFlow_Return return>
                        )
                      ]
                    )
                    (command.If
                      arms: [
                        (if_arm
                          cond: [
                            (C {<test>} {(DQ ($ Id.VSub_DollarName '$ans'))} {<Id.Lit_Equals '='>} {<n>})
                          ]
                          action: [(command.ControlFlow token:<Id.ControlFlow_Return return>)]
                          spids: [277 290]
                        )
                      ]
                    )
                  ]
                  spids: [198 203]
                )
              ]
            )
            (command.If
              arms: [
                (if_arm
                  cond: [(C {<use_ext_cmd>})]
                  action: [
                    (C {<export>} {<BASE>})
                    (C {<eval>} {($ Id.VSub_DollarName '$GIT_DIFFTOOL_EXTCMD')} {(SQ <'"$LOCAL"'>)} 
                      {(SQ <'"$REMOTE"'>)}
                    )
                  ]
                  spids: [303 308]
                )
              ]
              else_action: [(C {<run_merge_tool>} {(DQ ($ Id.VSub_DollarName '$merge_tool'))})]
            )
          ]
        )
    )
    (command.If
      arms: [
        (if_arm
          cond: [(command.Pipeline children:[(C {<use_ext_cmd>})] negated:T)]
          action: [
            (command.If
              arms: [
                (if_arm
                  cond: [(C {<test>} {<-n>} {(DQ ($ Id.VSub_DollarName '$GIT_DIFF_TOOL'))})]
                  action: [
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name name:merge_tool)
                          op: assign_op.Equal
                          rhs: {(DQ ($ Id.VSub_DollarName '$GIT_DIFF_TOOL'))}
                          spids: [367]
                        )
                      ]
                    )
                  ]
                  spids: [353 364]
                )
              ]
              else_action: [
                (command.AndOr
                  ops: [Id.Op_DPipe]
                  children: [
                    (command.ShAssignment
                      pairs: [
                        (assign_pair
                          lhs: (sh_lhs_expr.Name name:merge_tool)
                          op: assign_op.Equal
                          rhs: 
                            {
                              (DQ 
                                (command_sub
                                  left_token: <Id.Left_DollarParen '$('>
                                  command_list: 
                                    (command.CommandList
                                      children: [(C {<get_merge_tool>})]
                                    )
                                )
                              )
                            }
                          spids: [376]
                        )
                      ]
                    )
                    (command.ControlFlow token:<Id.ControlFlow_Exit exit>)
                  ]
                )
              ]
            )
          ]
          spids: [344 350]
        )
      ]
    )
    (command.If
      arms: [
        (if_arm
          cond: [(C {<test>} {<-n>} {(DQ ($ Id.VSub_DollarName '$GIT_DIFFTOOL_DIRDIFF'))})]
          action: [
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:LOCAL)
                  op: assign_op.Equal
                  rhs: {(DQ ($ Id.VSub_Number '$1'))}
                  spids: [406]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:REMOTE)
                  op: assign_op.Equal
                  rhs: {(DQ ($ Id.VSub_Number '$2'))}
                  spids: [412]
                )
              ]
            )
            (C {<run_merge_tool>} {(DQ ($ Id.VSub_DollarName '$merge_tool'))} {<false>})
          ]
          spids: [393 403]
        )
      ]
      else_action: [
        (command.WhileUntil
          keyword: <Id.KW_While while>
          cond: [(C {<test>} {($ Id.VSub_Pound '$#')} {<-gt>} {<6>})]
          body: 
            (command.DoGroup
              children: [
                (C {<launch_merge_tool>} {(DQ ($ Id.VSub_Number '$1'))} {(DQ ($ Id.VSub_Number '$2'))} 
                  {(DQ ($ Id.VSub_Number '$5'))}
                )
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name name:status)
                      op: assign_op.Equal
                      rhs: {($ Id.VSub_QMark '$?')}
                      spids: [462]
                    )
                  ]
                )
                (command.If
                  arms: [
                    (if_arm
                      cond: [(C {<test>} {($ Id.VSub_DollarName '$status')} {<-ge>} {<126>})]
                      action: [
                        (command.ControlFlow
                          token: <Id.ControlFlow_Exit exit>
                          arg_word: {($ Id.VSub_DollarName '$status')}
                        )
                      ]
                      spids: [466 477]
                    )
                  ]
                )
                (command.If
                  arms: [
                    (if_arm
                      cond: [
                        (command.AndOr
                          ops: [Id.Op_DAmp]
                          children: [
                            (C {<test>} {(DQ ($ Id.VSub_DollarName '$status'))} 
                              {<Id.KW_Bang '!'> <Id.Lit_Equals '='>} {<0>}
                            )
                            (C {<test>} {(DQ ($ Id.VSub_DollarName '$GIT_DIFFTOOL_TRUST_EXIT_CODE'))} 
                              {<Id.Lit_Equals '='>} {<true>}
                            )
                          ]
                        )
                      ]
                      action: [
                        (command.ControlFlow
                          token: <Id.ControlFlow_Exit exit>
                          arg_word: {($ Id.VSub_DollarName '$status')}
                        )
                      ]
                      spids: [497 524]
                    )
                  ]
                )
                (C {<shift>} {<7>})
              ]
            )
        )
      ]
    )
    (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<0>})
  ]
)