#!/bin/bash
# Build the SBo submission tarball SBo/<pkg>.tar.gz for one package.
# Same archive the post-commit hook produces, but on demand by name.
set -eu

usage() {
    cat <<EOF
usage: ${0##*/} <package-name>

Build the SBo submission tarball <package-name>.tar.gz, the same archive the
post-commit hook produces, on demand by name. The package must exist in this
repo (<package-name>/<package-name>.SlackBuild). Any sbodl source symlinks in
the package directory are removed first so they never leak into the tarball.

Output goes to the current directory by default; set OUTPUT to override:
  OUTPUT=/tmp ${0##*/} feroxbuster   # writes /tmp/feroxbuster.tar.gz
EOF
}

case "${1:-}" in
    -h|--help) usage; exit 0 ;;
esac
[ $# -eq 1 ] || { usage >&2; exit 2; }

pkg=$1
REPO_ROOT=$(git -C "$(dirname "$0")" rev-parse --show-toplevel)

# Where the tarball lands. Defaults to the current directory; override with
# the OUTPUT env var (e.g. OUTPUT=/tmp mksboarchive feroxbuster).
OUTPUT=${OUTPUT:-$PWD}

# Must be a real package dir one level deep with a matching .SlackBuild.
if [ ! -f "$REPO_ROOT/$pkg/$pkg.SlackBuild" ]; then
    echo "error: '$pkg' is not a package in this repo." >&2
    exit 1
fi

# Drop any sbodl source symlinks before archiving so they never end up in an
# SBo submission tarball (the pre-commit hook does the same for staged files).
find "$REPO_ROOT/$pkg" -type l -delete

mkdir -p "$OUTPUT"
tar -czf "$OUTPUT/$pkg.tar.gz" -C "$REPO_ROOT" "$pkg"
echo "Archive created: $OUTPUT/$pkg.tar.gz"