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#! /bin/bash
# Description: show dependency tree
# Author: damphat
if [ $# -lt 1 ]; then
echo 'Usage: apt-rdepends-tree [-r] <package>'
echo 'Required packages: apt-rdepends'
exit 1
fi
args=""
if [ "$1" == "-r" ]; then
args="${args} -r"
shift
fi
# tree template
T1=" ├─"
T2=" │ ├─"
T3=" │ └─"
# tree template for last node
T4=" └─"
T5=" ├─"
T6=" └─"
# mark '1' for parent node, '2' for child node
TEXT="$(apt-rdepends $args $1 | sed -e 's/^/1 /' -e 's/.*: /2 /'; echo '-')"
TOTAL=$(echo "$TEXT" | grep '^1' | wc -l) # total parent
COUNT=0
echo "$TEXT" | while read line; do
tmp=$last
[ "${line:0:1}" != "${last:0:1}" ] && tmp=$(echo $last | sed -e 's/^2/3/')
[ "${tmp:0:1}" == "1" ] && ((COUNT++))
if [ "$TOTAL" != "$COUNT" ]; then
echo $tmp | sed -e "s/^1/$T1/" -e "s/^2/$T2/" -e "s/^3/$T3/"
else
echo $tmp | sed -e "s/^1/$T4/" -e "s/^2/$T5/" -e "s/^3/$T6/"
fi
last=$line
done
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