make-release

#! /usr/bin/env bash

set -euo pipefail

readonly BUILD_DIR="/tmp/shell-tea-timer.build"
readonly TARGET_DIR="${HOME}/Downloads/"
readonly UNDEF_VALUE="undefined"

readonly tag="$(git describe --tags)"
readonly gendatetime="$(date +'%d.%m.%Y %H:%M:%S')"

function replace_placeholders() {
    local relative_filepath="${1}"

    cat "${relative_filepath}" \
        | sed "s/{{{version}}}/${tag}/" \
        | sed "s/{{{generated_on}}}/${gendatetime}/" \
        > "${BUILD_DIR}/${relative_filepath}"
}

if [[ "${tag}" == "${UNDEF_VALUE}" ]]; then
    >&2 echo
    >&2 echo "You have to be on tagged commit!"
    exit 1
fi

if [[ -d "${BUILD_DIR}" ]]; then
    echo -n "About to remove build dir [${BUILD_DIR}]. Continue [enter/ctrl+c]? "
    read -r answer
    command rm -rf "${BUILD_DIR}"
fi

files=( "shell-tea-timer" "conf" "libs" "vendor" "README.md" "LICENSE" )

mkdir "${BUILD_DIR}"
cp -r "${files[@]}" "${BUILD_DIR}/"

replace_placeholders "shell-tea-timer"
replace_placeholders "libs/flow"

cd "${BUILD_DIR}"

tar -czvf "${TARGET_DIR}/shell-tea-timer.${tag}.tar.gz" "${files[@]}"