#!/bin/sh -e

if grep -Eq '^(missing|match)$' "$__object/explorer/state"
then
    exit 0
fi

os="$( cat "$__global/explorer/os" )"

src="/$__object_id"

dst="$( sed 's/\/$//' "$__object/parameter/destination" )"

cmd=''

case "$src" in
    *.tar|*.tgz|*.tar.*)
        cmd="mkdir -p '$dst' && tar --directory='$dst' --extract --file='$src'"

        if [ -f "$__object/parameter/tar-strip" ]
        then
            tar_strip="$( cat "$__object/parameter/tar-strip" )"

            cmd="$cmd --strip-components=$tar_strip"
        fi
    ;;
    *.7z)
        case "$os" in
            centos|fedora|redhat)
                cmd='7za'
            ;;
            *)
                cmd='7zr'
            ;;
        esac

        cmd="$cmd e -aoa -o'$dst' '$src'"
    ;;
    *.bz2)
        cmd="bunzip2 --stdout '$src' > '$dst'"
    ;;
    *.gz)
        cmd="gunzip --stdout '$src' > '$dst'"
    ;;
    *.lzma|*.xz)
        cmd="xz --uncompress --stdout '$src' > '$dst'"
    ;;
    *.rar)
        cmd="unrar x -o+ '$src' '$dst/'"
    ;;
    *.zip)
        cmd="unzip -o '$src' -d '$dst'"
    ;;
esac

if [ -f "$__object/parameter/backup-destination" ]
then
    echo "if [ -e '$dst' ]; then mv '$dst' '$dst.cdist__unpack_backup_$( date +%s )'; fi"
fi

echo "$cmd"

if [ -f "$__object/parameter/sum-file" ]
then
    sum_file="$( cat "$__object/parameter/sum-file" )"
else
    sum_file="$src.cdist__unpack_sum"
fi

echo "cksum '$src' | awk '{ print \$1\$2 }' > '$sum_file'"

if [ ! -f "$__object/parameter/preserve-archive" ]
then
    echo "rm -f '$src'"
fi