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

## SYNOPSIS:
## .Nm
## .Op Ar pkg

## DESCRIPTION:
## .Nm
## creates a package tarball of an installed package using the system files
## declared on the package's manifest. If no package name is given,
## .Nm
## will use the name of the current directory as the package.

### Environment variables:
### The compression method can be changed while creating a tarball, using the
### .Ev CPT_COMPRESS
### environment variable.

parser_definition() {
    setup REST help:usage -- "usage: ${0##*/} [pkg]"
    global_options silent
}

# shellcheck disable=1091
. cpt-lib

[ "$1" ] || set -- "${PWD##*/}"

(pkg_list "$1" >/dev/null)

# Grab the package's version..
read -r ver rel 2>/dev/null < "$sys_db/$1/version"

tarball="$PWD/$1#$ver-$rel.tar.$CPT_COMPRESS"

# Turn the list of files back into a package.
cd "$CPT_ROOT/"
sed 's/^/./' "$sys_db/$1/manifest" | pax -wd | compress > "$tarball"
out "tarball created in $tarball"