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#!/bin/sh -ef
# Turn an installed package into a CPT tarball

case "$1" in
    --help|-h)
        printf '\033[1;33m-> \033[m%s\n' "usage: ${0##*/} [pkg]"
        exit 0
        ;;
    '') set -- "${PWD##*/}"
esac

cpt-list "${1:-null}" >/dev/null

# Grab the package's version..
read -r ver rel 2>/dev/null < \
    "$CPT_ROOT/var/db/cpt/installed/$1/version"

# Reset the argument list.
pkg=$1
tarball="$PWD/$1#$ver-$rel.tar.${CPT_COMPRESS:=gz}"
set --

# Construct the argument list using each file.
eval set -- "$(sed '/\/$/d;s|^|".|;s|$|"|' \
    "$CPT_ROOT/var/db/cpt/installed/$pkg/manifest" | tr '\n' ' ')"

# Turn the list of files back into a package.
cd "$CPT_ROOT/"
 tar cf - -- "$@" | case "$CPT_COMPRESS" in
    bz2) bzip2 -z ;;
    gz)  gzip -6  ;;
    xz)  xz -zT 0 ;;
    zst) zstd -3  ;;
    *)   gzip -6  ;;  # Fallback to gzip
esac > "$tarball"

printf 'tarball created in %s\n' "$tarball"