Retrieve unique list of files installed by one or more Gentoo packages

gdepends

#!/usr/bin/env sh

# returns a unique list of directories used by the provided packages

if [[ -z "$1" ]]; then echo "Please provide at least one package name to query"; exit 1; fi

excludes="doc/
man/
themes/
locale/
include/
log/"

for var in "$@"
do
        new_depends=`qdepends -rC ${var}`
        depends+=${new_depends}
done

dep_names=`echo $* | sed 's/ / and /g'`

packages=`echo $depends | tr ' ' '\n' | cut -d '[' -f -1 | cut -d ':' -f 1 | cut -d '=' -f 2 | cut -d '<' -f 2 | xargs qatom -F "%{CATEGORY}/%{PN}" | sort | uniq`

for p in $packages
do
        dep_files+=`qlist -d $p`
done
final_files=`echo ${dep_files} | tr ' ' '\n' | sort | uniq | grep -vF "$excludes"`
echo "$final_files"
final_files_count=`echo $final_files | tr ' ' '\n' |  wc -l`

echo "Total files needed for "$dep_names": "${final_files_count}""