#!/bin/sh
# set aoe to autoload by installing the
# aliases in /etc/modprobe.d/

global f := '/etc/modprobe.d/aoe.conf'

if test ! -r $f || test ! -w $f {
	echo "cannot configure $f for module autoloading" !1 > !2
	exit 1
}

grep major-152 $f >/dev/null
if test $Status = 1 {
	echo alias block-major-152 aoe >> $f
	echo alias char-major-152 aoe >> $f
}

(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [(assign_pair lhs:(LhsName name:f) op:Equal rhs:{(/etc/modprobe.d/aoe.conf)} spids:[10])]
      spids: [10]
    )
    (If
      arms: [
        (if_arm
          cond: [
            (Sentence
              child: 
                (AndOr
                  children: [
                    (C {(test)} {(KW_Bang "!")} {(-r)} {($ VSub_Name "$f")})
                    (C {(test)} {(KW_Bang "!")} {(-w)} {($ VSub_Name "$f")})
                  ]
                  op_id: Op_DPipe
                )
              terminator: <Op_Semi ";">
            )
          ]
          action: [
            (SimpleCommand
              words: [
                {(echo)}
                {(DQ ("cannot configure ") ($ VSub_Name "$f") (" for module autoloading"))}
              ]
              redirects: [(Redir op_id:Redir_GreatAnd fd:1 arg_word:{(2)} spids:[46])]
            )
            (C {(exit)} {(1)})
          ]
          spids: [-1 35]
        )
      ]
      spids: [-1 54]
    )
    (SimpleCommand
      words: [{(grep)} {(major-152)} {($ VSub_Name "$f")}]
      redirects: [(Redir op_id:Redir_Great fd:-1 arg_word:{(/dev/null)} spids:[63])]
    )
    (If
      arms: [
        (if_arm
          cond: [
            (Sentence
              child: 
                (C {(Lit_Other "[")} {($ VSub_QMark "$?")} {(Lit_Other "=")} {(1)} {(Lit_Other "]")})
              terminator: <Op_Semi ";">
            )
          ]
          action: [
            (SimpleCommand
              words: [{(echo)} {(alias)} {(block-major-152)} {(aoe)}]
              redirects: [(Redir op_id:Redir_DGreat fd:-1 arg_word:{($ VSub_Name "$f")} spids:[90])]
            )
            (SimpleCommand
              words: [{(echo)} {(alias)} {(char-major-152)} {(aoe)}]
              redirects: [(Redir op_id:Redir_DGreat fd:-1 arg_word:{($ VSub_Name "$f")} spids:[103])]
            )
          ]
          spids: [-1 79]
        )
      ]
      spids: [-1 107]
    )
  ]
)