#!/usr/bin/env bash
# SPDX-License-Identifier: GPL-3.0-or-later

. $(dirname "${0}")/../functions.sh "${@}" || exit 1

run cd "${NETDATA_SOURCE_PATH}" || exit 1

# -----------------------------------------------------------------------------
# find the netdata version

VERSION="$(git describe 2>/dev/null)"
if [ -z "${VERSION}" ]; then
    VERSION=$(cat packaging/version)
fi

if [ "${VERSION}" == "" ]; then
    echo >&2 "Cannot find version number. Create makeself executable from source code with git tree structure."
    exit 1
fi

# -----------------------------------------------------------------------------
# copy the files needed by makeself installation

run mkdir -p "${NETDATA_INSTALL_PATH}/system"

run cp \
    packaging/makeself/post-installer.sh \
    packaging/makeself/install-or-update.sh \
    packaging/installer/functions.sh \
    configs.signatures \
    system/netdata-init-d \
    system/netdata-lsb \
    system/netdata-openrc \
    system/netdata.logrotate \
    system/netdata.service \
    "${NETDATA_INSTALL_PATH}/system/"


# -----------------------------------------------------------------------------
# create a wrapper to start our netdata with a modified path

run mkdir -p "${NETDATA_INSTALL_PATH}/bin/srv"

run mv "${NETDATA_INSTALL_PATH}/bin/netdata" \
    "${NETDATA_INSTALL_PATH}/bin/srv/netdata" || exit 1

cat >"${NETDATA_INSTALL_PATH}/bin/netdata" <<EOF
#!${NETDATA_INSTALL_PATH}/bin/bash
export NETDATA_BASH_LOADABLES="DISABLE"
export PATH="${NETDATA_INSTALL_PATH}/bin:\${PATH}"
exec "${NETDATA_INSTALL_PATH}/bin/srv/netdata" "\${@}"
EOF
run chmod 755 "${NETDATA_INSTALL_PATH}/bin/netdata"


# -----------------------------------------------------------------------------
# remove the links to allow untaring the archive

run rm "${NETDATA_INSTALL_PATH}/sbin" \
    "${NETDATA_INSTALL_PATH}/usr/bin" \
    "${NETDATA_INSTALL_PATH}/usr/sbin" \
    "${NETDATA_INSTALL_PATH}/usr/local"


# -----------------------------------------------------------------------------
# create the makeself archive

run sed "s|NETDATA_VERSION|${VERSION}|g" <"${NETDATA_MAKESELF_PATH}/makeself.lsm" >"${NETDATA_MAKESELF_PATH}/makeself.lsm.tmp"

run "${NETDATA_MAKESELF_PATH}/makeself.sh" \
    --gzip \
    --complevel 9 \
    --notemp \
    --needroot \
    --target "${NETDATA_INSTALL_PATH}" \
    --header "${NETDATA_MAKESELF_PATH}/makeself-header.sh" \
    --lsm "${NETDATA_MAKESELF_PATH}/makeself.lsm.tmp" \
    --license "${NETDATA_MAKESELF_PATH}/makeself-license.txt" \
    --help-header "${NETDATA_MAKESELF_PATH}/makeself-help-header.txt" \
    "${NETDATA_INSTALL_PATH}" \
    "${NETDATA_INSTALL_PATH}.gz.run" \
    "netdata, the real-time performance and health monitoring system" \
    ./system/post-installer.sh \
    ${NULL}

run rm "${NETDATA_MAKESELF_PATH}/makeself.lsm.tmp"

# -----------------------------------------------------------------------------
# copy it to the netdata build dir

FILE="netdata-${VERSION}.gz.run"

run mkdir -p artifacts
run mv "${NETDATA_INSTALL_PATH}.gz.run" "artifacts/${FILE}"

[ -f netdata-latest.gz.run ] && rm netdata-latest.gz.run
run ln -s "artifacts/${FILE}" netdata-latest.gz.run

echo >&2 "Self-extracting installer moved to 'artifacts/${FILE}'"