buildroot/_pkg/_remove_targz

   1 #! /bin/bash
   2
   3 export LC_COLLATE=C
   4 #get params: / targz / targz --root / targz --root dir /
   5 [ -z "$1" ] && exit 1
   6 REMOVE_FROM_ROOT=0
   7 [ "$2" = "--root" ] && REMOVE_FROM_ROOT=1 && ROOT=/
   8 [ ! -z "$3" ] && ROOT="$3"
   9
  10 #setup tempfiles
  11 tempfile1=`mktemp --suffix=-tmp1 2> /dev/null`
  12 tempfile2=`mktemp --suffix=-tmp2 2> /dev/null`
  13 tempfile3=`mktemp --suffix=-tmp3 2> /dev/null`
  14 trap "rm -f $tempfile1 $tempfile2 $tempfile3" 0 1 2 5 15
  15
  16 #deal with tempfiles
  17 if [ $REMOVE_FROM_ROOT = 0 ]; then
  18     tar tzf "$1" | rev | sort -V | rev | tee $tempfile1 | grep "/$" > $tempfile2
  19 else
  20     if [ "$ROOT" = "/" ]; then
  21         tar tzf "$1" | sed "s%.*%/&%" | rev | sort -V | rev | tee $tempfile1 | grep "/$" > $tempfile2
  22     else
  23         tar tzf "$1" | sed "s%.*%$ROOT/&%" | rev | sort -V | rev | tee $tempfile1 | grep "/$" > $tempfile2
  24     fi
  25 fi
  26
  27 grep -v "/$" $tempfile1 > $tempfile3
  28 cat $tempfile3 | tr '\n' '\0' | xargs -0 -r rm 2> /dev/null
  29 sort -t / $tempfile2 | tac > $tempfile1
  30 cat $tempfile1 | tr '\n' '\0' | xargs -0 -r rmdir 2> /dev/null