(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:DIRECTORY_INDEXER)
          op: Equal
          rhs: 
            {(DQ ($ VSub_Name '$PWD') (/kythe/go/storage/tools/directory_indexer/directory_indexer))}
          spids: [48]
        )
      ]
      spids: [48]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:CONFIG)
          op: Equal
          rhs: {(DQ ($ VSub_Name '$PWD') (/kythe/data/vnames.json))}
          spids: [54]
        )
      ]
      spids: [54]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:OUT)
          op: Equal
          rhs: {(DQ ($ VSub_Name '$TEST_TMPDIR') (/file_entries))}
          spids: [60]
        )
      ]
      spids: [60]
    )
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:DIR)
          op: Equal
          rhs: {(DQ ($ VSub_Name '$PWD') (/kythe/data))}
          spids: [70]
        )
      ]
      spids: [70]
    )
    (C {(mkdir)} {(-p)} 
      {
        (DQ 
          (CommandSubPart
            command_list: (CommandList children:[(C {(dirname)} {(DQ ($ VSub_Name '$OUT'))})])
            left_token: <Left_CommandSub '$('>
            spids: [82 88]
          )
        )
      }
    )
    (C {(cd)} {(DQ ($ VSub_Name '$DIR'))})
    (SimpleCommand
      words: [
        {(DQ ($ VSub_Name '$DIRECTORY_INDEXER'))}
        {(--emit_irregular)}
        {(--vnames)}
        {(DQ ($ VSub_Name '$CONFIG'))}
      ]
      redirects: [
        (Redir
          op_id: Redir_Great
          fd: 16777215
          arg_word: {(DQ ($ VSub_Name '$OUT'))}
          spids: [109]
        )
      ]
    )
    (AndOr
      ops: [Op_DPipe]
      children: [
        (C {(test)} {(-s)} {(DQ ($ VSub_Name '$OUT'))})
        (BraceGroup
          children: [
            (SimpleCommand
              words: [{(echo)} {(DQ ($ VSub_Name '$OUT') (' is empty'))}]
              redirects: [(Redir op_id:Redir_GreatAnd fd:16777215 arg_word:{(2)} spids:[135])]
            )
            (ControlFlow token:<ControlFlow_Exit exit> arg_word:{(1)})
          ]
          spids: [125]
        )
      ]
    )
  ]
)