[fix] sh: apply format

Related https://github.com/searxng/searxng/issues/4803
2025-08-05 03:16:46 +02:00 · 2025-07-10 21:07:08 +02:00 · 2025-07-10 21:07:08 +02:00 · e9ecdcc350
commit e9ecdcc350
parent 2311d16497
18 changed files with 644 additions and 548 deletions
--- a/52
+++ b/52
@ -65,7 +65,7 @@ while IFS= read -r line; do
    if [ "$line" != "tests/unit/settings/syntaxerror_settings.yml" ]; then
        YAMLLINT_FILES+=("$line")
    fi
-done <<< "$(git ls-files './tests/*.yml' './searx/*.yml' './utils/templates/etc/searxng/*.yml' '.github/*.yml' '.github/*/*.yml')"
+done <<<"$(git ls-files './tests/*.yml' './searx/*.yml' './utils/templates/etc/searxng/*.yml' '.github/*.yml' '.github/*/*.yml')"
 RST_FILES=(
    'README.rst'
@ -113,7 +113,6 @@ environment ...
 EOF
 }
 if [ "$VERBOSE" = "1" ]; then
    SPHINX_VERBOSE="-v"
    PYLINT_VERBOSE="-v"
@ -126,14 +125,14 @@ webapp.run() {
    local parent_proc="$$"
    (
        if [ "${LIVE_THEME}" ]; then
-            ( themes.live "${LIVE_THEME}" )
+            (themes.live "${LIVE_THEME}")
            kill $parent_proc
        fi
-    )&
+    ) &
    (
        sleep 3
        xdg-open http://127.0.0.1:8888/
-    )&
+    ) &
    SEARXNG_DEBUG=1 pyenv.cmd python -m searx.webapp
 }
@ -143,10 +142,11 @@ gecko.driver() {
    build_msg INSTALL "gecko.driver"
    # run installation in a subprocess and activate pyenv
-    (   set -e
+    (
        set -e
        pyenv.activate
-        INSTALLED_VERSION=$(geckodriver -V 2> /dev/null | head -1 | awk '{ print "v" $2}') || INSTALLED_VERSION=""
+        INSTALLED_VERSION=$(geckodriver -V 2>/dev/null | head -1 | awk '{ print "v" $2}') || INSTALLED_VERSION=""
        set +e
        if [ "${INSTALLED_VERSION}" = "${GECKODRIVER_VERSION}" ]; then
            build_msg INSTALL "geckodriver already installed"
@ -154,13 +154,13 @@ gecko.driver() {
        fi
        PLATFORM="$(python -c 'import platform; print(platform.system().lower(), platform.architecture()[0])')"
        case "$PLATFORM" in
-            "linux 32bit" | "linux2 32bit") ARCH="linux32";;
+            "linux 32bit" | "linux2 32bit") ARCH="linux32" ;;
-            "linux 64bit" | "linux2 64bit") ARCH="linux64";;
+            "linux 64bit" | "linux2 64bit") ARCH="linux64" ;;
-            "windows 32 bit") ARCH="win32";;
+            "windows 32 bit") ARCH="win32" ;;
-            "windows 64 bit") ARCH="win64";;
+            "windows 64 bit") ARCH="win64" ;;
-            "mac 64bit") ARCH="macos";;
+            "mac 64bit") ARCH="macos" ;;
        esac
-        GECKODRIVER_URL="https://github.com/mozilla/geckodriver/releases/download/$GECKODRIVER_VERSION/geckodriver-$GECKODRIVER_VERSION-$ARCH.tar.gz";
+        GECKODRIVER_URL="https://github.com/mozilla/geckodriver/releases/download/$GECKODRIVER_VERSION/geckodriver-$GECKODRIVER_VERSION-$ARCH.tar.gz"
        build_msg GECKO "Installing ${PY_ENV_BIN}/geckodriver from $GECKODRIVER_URL"
@ -181,7 +181,8 @@ py.build() {
 py.clean() {
    build_msg CLEAN pyenv
-    (   set -e
+    (
        set -e
        pyenv.drop
        [ "$VERBOSE" = "1" ] && set -x
        rm -rf "${PYDIST}" "${PYBUILD}" "${PY_ENV}" ./.tox ./*.egg-info
@ -201,13 +202,14 @@ EOF
 pyenv.install() {
    if ! pyenv.OK; then
-        py.clean > /dev/null
+        py.clean >/dev/null
    fi
-    if pyenv.install.OK > /dev/null; then
+    if pyenv.install.OK >/dev/null; then
        return 0
    fi
-    (   set -e
+    (
        set -e
        pyenv
        build_msg PYENV "[install] pip install --use-pep517 --no-build-isolation -e 'searx${PY_SETUP_EXTRAS}'"
        "${PY_ENV_BIN}/python" -m pip install --use-pep517 --no-build-isolation -e ".${PY_SETUP_EXTRAS}"
@ -220,8 +222,8 @@ pyenv.install() {
 pyenv.uninstall() {
    build_msg PYENV "[pyenv.uninstall] uninstall packages: ${PYOBJECTS}"
-    pyenv.cmd python setup.py develop --uninstall 2>&1 \
+    pyenv.cmd python setup.py develop --uninstall 2>&1 |
-        | prefix_stdout "${_Blue}PYENV     ${_creset}[pyenv.uninstall] "
+        prefix_stdout "${_Blue}PYENV     ${_creset}[pyenv.uninstall] "
 }
@ -243,7 +245,7 @@ docs.prebuild() {
        set -e
        [ "$VERBOSE" = "1" ] && set -x
        mkdir -p "${DOCS_BUILD}/includes"
-        ./utils/searxng.sh searxng.doc.rst >  "${DOCS_BUILD}/includes/searxng.rst"
+        ./utils/searxng.sh searxng.doc.rst >"${DOCS_BUILD}/includes/searxng.rst"
        pyenv.cmd searxng_extra/docs_prebuild
    )
    dump_return $?
@ -253,7 +255,8 @@ docs.prebuild() {
 main() {
    local _type
-    local cmd="$1"; shift
+    local cmd="$1"
    shift
    if [ "$cmd" == "" ]; then
        help
@ -262,8 +265,11 @@ main() {
    fi
    case "$cmd" in
-        --getenv) var="$1"; echo "${!var}";;
+        --getenv)
-        --help) help;;
+            var="$1"
            echo "${!var}"
            ;;
        --help) help ;;
        --*)
            help
            err_msg "unknown option $cmd"
--- a/utils/brand.sh
+++ b/utils/brand.sh
@ -8,11 +8,11 @@ build.env.export() {
    GIT_BRANCH="$(git branch | grep '\*' | cut -d' ' -f2-)"
    GIT_REMOTE="$(git config "branch.${GIT_BRANCH}.remote")"
    GIT_URL="$(git config --get "remote.${GIT_REMOTE}.url")"
-    if [[ "${GIT_URL}" == git@* ]]; then
+    if [[ ${GIT_URL} == git@* ]]; then
        GIT_URL="${GIT_URL/://}"
        GIT_URL="${GIT_URL/git@/https://}"
    fi
-    if [[ "${GIT_URL}" == *.git ]]; then
+    if [[ ${GIT_URL} == *.git ]]; then
        GIT_URL="${GIT_URL%.git}"
    fi
@ -27,6 +27,6 @@ build.env.export() {
 }
-pushd "${REPO_ROOT}" &> /dev/null
+pushd "${REPO_ROOT}" &>/dev/null
 build.env.export
-popd &> /dev/null
+popd &>/dev/null
--- a/utils/lib.sh
+++ b/utils/lib.sh
@ -4,11 +4,20 @@
 # shellcheck disable=SC2059,SC1117
 # ubuntu, debian, arch, fedora, centos ...
-DIST_ID=$(source /etc/os-release; echo "$ID");
+DIST_ID=$(
    source /etc/os-release
    echo "$ID"
 )
 # shellcheck disable=SC2034
-DIST_VERS=$(source /etc/os-release; echo "$VERSION_ID");
+DIST_VERS=$(
    source /etc/os-release
    echo "$VERSION_ID"
 )
 # shellcheck disable=SC2034
-DIST_VERSION_CODENAME=$(source /etc/os-release; echo "$VERSION_CODENAME");
+DIST_VERSION_CODENAME=$(
    source /etc/os-release
    echo "$VERSION_CODENAME"
 )
 ADMIN_NAME="${ADMIN_NAME:-$(git config user.name)}"
 ADMIN_NAME="${ADMIN_NAME:-$USER}"
@ -16,19 +25,19 @@ ADMIN_NAME="${ADMIN_NAME:-$USER}"
 ADMIN_EMAIL="${ADMIN_EMAIL:-$(git config user.email)}"
 ADMIN_EMAIL="${ADMIN_EMAIL:-$USER@$(hostname)}"
-if [[ -z "${REPO_ROOT}" ]]; then
+if [[ -z ${REPO_ROOT} ]]; then
    REPO_ROOT=$(dirname "${BASH_SOURCE[0]}")
-    while [ -h "${REPO_ROOT}" ] ; do
+    while [ -h "${REPO_ROOT}" ]; do
        REPO_ROOT=$(readlink "${REPO_ROOT}")
    done
-    REPO_ROOT=$(cd "${REPO_ROOT}/.." && pwd -P )
+    REPO_ROOT=$(cd "${REPO_ROOT}/.." && pwd -P)
 fi
 if [[ -z ${TEMPLATES} ]]; then
    TEMPLATES="${REPO_ROOT}/utils/templates"
 fi
-if [[ -z "$CACHE" ]]; then
+if [[ -z $CACHE ]]; then
    CACHE="${REPO_ROOT}/cache"
 fi
@ -42,7 +51,7 @@ fi
 DOT_CONFIG="${DOT_CONFIG:-${REPO_ROOT}/.config.sh}"
 source_dot_config() {
-    if [[ ! -e "${DOT_CONFIG}" ]]; then
+    if [[ ! -e ${DOT_CONFIG} ]]; then
        err_msg "configuration does not exists at: ${DOT_CONFIG}"
        return 42
    fi
@ -128,9 +137,9 @@ rst_title() {
    # usage: rst_title <header-text> [part|chapter|section]
    case ${2-chapter} in
-        part)     printf "\n${_BGreen}${1//?/=}${_creset}\n${_BCyan}${1}${_creset}\n${_BGreen}${1//?/=}${_creset}\n";;
+        part) printf "\n${_BGreen}${1//?/=}${_creset}\n${_BCyan}${1}${_creset}\n${_BGreen}${1//?/=}${_creset}\n" ;;
-        chapter)  printf "\n${_BCyan}${1}${_creset}\n${_BGreen}${1//?/=}${_creset}\n";;
+        chapter) printf "\n${_BCyan}${1}${_creset}\n${_BGreen}${1//?/=}${_creset}\n" ;;
-        section)  printf "\n${_BCyan}${1}${_creset}\n${_BGreen}${1//?/-}${_creset}\n";;
+        section) printf "\n${_BCyan}${1}${_creset}\n${_BGreen}${1//?/-}${_creset}\n" ;;
        *)
            err_msg "invalid argument '${2}' in line $(caller)"
            return 42
@ -150,12 +159,12 @@ rst_para() {
 }
 die() {
-    echo -e "${_BRed}ERROR:${_creset} ${BASH_SOURCE[1]}: line ${BASH_LINENO[0]}: ${2-died ${1-1}}" >&2;
+    echo -e "${_BRed}ERROR:${_creset} ${BASH_SOURCE[1]}: line ${BASH_LINENO[0]}: ${2-died ${1-1}}" >&2
    exit "${1-1}"
 }
 die_caller() {
-    echo -e "${_BRed}ERROR:${_creset} ${BASH_SOURCE[2]}: line ${BASH_LINENO[1]}: ${FUNCNAME[1]}(): ${2-died ${1-1}}" >&2;
+    echo -e "${_BRed}ERROR:${_creset} ${BASH_SOURCE[2]}: line ${BASH_LINENO[1]}: ${FUNCNAME[1]}(): ${2-died ${1-1}}" >&2
    exit "${1-1}"
 }
@ -181,17 +190,17 @@ dump_return() {
 clean_stdin() {
    if [[ $(uname -s) != 'Darwin' ]]; then
-        while read -r -n1 -t 0.1; do : ; done
+        while read -r -n1 -t 0.1; do :; done
    fi
 }
-wait_key(){
+wait_key() {
    # usage: wait_key [<timeout in sec>]
    clean_stdin
    local _t=$1
    local msg="${MSG}"
-    [[ -z "$msg" ]] && msg="${_Green}** press any [${_BCyan}KEY${_Green}] to continue **${_creset}"
+    [[ -z $msg ]] && msg="${_Green}** press any [${_BCyan}KEY${_Green}] to continue **${_creset}"
    [[ -n $FORCE_TIMEOUT ]] && _t=$FORCE_TIMEOUT
    [[ -n $_t ]] && _t="-t $_t"
@ -233,7 +242,8 @@ ask_yn() {
        # shellcheck disable=SC2086,SC2229
        read -r -n1 $_t
        if [[ -z $REPLY ]]; then
-            printf "$default\n"; break
+            printf "$default\n"
            break
        elif [[ $REPLY =~ ^[Yy]$ ]]; then
            exit_val=${EXIT_YES}
            printf "\n"
@ -250,7 +260,7 @@ ask_yn() {
    return $exit_val
 }
-tee_stderr () {
+tee_stderr() {
    # usage::
    #   tee_stderr 1 <<EOF | python -i
@ -260,8 +270,8 @@ tee_stderr () {
    #   >>> print("hello")
    #    hello
-    local _t="0";
+    local _t="0"
-    if [[ -n $1 ]] ; then _t="$1"; fi
+    if [[ -n $1 ]]; then _t="$1"; fi
    (while read -r line; do
        # shellcheck disable=SC2086,SC2229
@ -271,12 +281,12 @@ tee_stderr () {
    done)
 }
-prefix_stdout () {
+prefix_stdout() {
    # usage: <cmd> | prefix_stdout [prefix]
    local prefix="${_BYellow}-->|${_creset}"
-    if [[ -n $1 ]] ; then prefix="$1"; fi
+    if [[ -n $1 ]]; then prefix="$1"; fi
    # shellcheck disable=SC2162
    (while IFS= read line; do
@ -296,7 +306,7 @@ append_line() {
    local LINE=$1
    local FILE=$2
-    grep -qFs -- "$LINE" "$FILE" || echo "$LINE" >> "$FILE"
+    grep -qFs -- "$LINE" "$FILE" || echo "$LINE" >>"$FILE"
 }
 cache_download() {
@ -311,7 +321,7 @@ cache_download() {
        mkdir -p "${CACHE}"
    fi
-    if [[ -f "${CACHE}/$2" ]] ; then
+    if [[ -f "${CACHE}/$2" ]]; then
        info_msg "already cached: $1"
        info_msg "  --> ${CACHE}/$2"
    fi
@ -320,11 +330,13 @@ cache_download() {
        info_msg "caching: $1"
        info_msg "  --> ${CACHE}/$2"
        if [[ -n ${SUDO_USER} ]]; then
-            sudo -u "${SUDO_USER}" wget --progress=bar -O "${CACHE}/$2" "$1" ; exit_value=$?
+            sudo -u "${SUDO_USER}" wget --progress=bar -O "${CACHE}/$2" "$1"
            exit_value=$?
        else
-            wget --progress=bar -O "${CACHE}/$2" "$1" ; exit_value=$?
+            wget --progress=bar -O "${CACHE}/$2" "$1"
            exit_value=$?
        fi
-        if [[ ! $exit_value = 0 ]]; then
+        if [[ $exit_value != 0 ]]; then
            err_msg "failed to download: $1"
        fi
    fi
@ -350,7 +362,7 @@ choose_one() {
    local default=${DEFAULT_SELECT-1}
    local REPLY
    local env_name=$1 && shift
-    local choice=$1;
+    local choice=$1
    local max="${#@}"
    local _t
    [[ -n $FORCE_TIMEOUT ]] && _t=$FORCE_TIMEOUT
@ -358,8 +370,8 @@ choose_one() {
    list=("$@")
    echo -e "${_BGreen}Menu::${_creset}"
-    for ((i=1; i<= $((max -1)); i++)); do
+    for ((i = 1; i <= $((max - 1)); i++)); do
-        if [[ "$i" == "$default" ]]; then
+        if [[ $i == "$default" ]]; then
            echo -e "  ${_BGreen}$i.${_creset}) ${list[$i]} [default]"
        else
            echo -e "  $i.) ${list[$i]}"
@ -369,7 +381,7 @@ choose_one() {
        clean_stdin
        printf "$1 [${_BGreen}$default${_creset}] "
-        if (( 10 > max )); then
+        if ((10 > max)); then
            # shellcheck disable=SC2086,SC2229
            read -r -n1 $_t
        else
@ -377,7 +389,7 @@ choose_one() {
            read -r $_t
        fi
        # selection fits
-        [[ $REPLY =~ ^-?[0-9]+$ ]] && (( REPLY > 0 )) && (( REPLY < max )) && break
+        [[ $REPLY =~ ^-?[0-9]+$ ]] && ((REPLY > 0)) && ((REPLY < max)) && break
        # take default
        [[ -z $REPLY ]] && REPLY=$default && break
@ -414,8 +426,14 @@ install_template() {
    for i in "$@"; do
        case $i in
-            --no-eval) do_eval=0; shift ;;
+            --no-eval)
-            --variant=*) variant=":${i#*=}"; shift ;;
+                do_eval=0
                shift
                ;;
            --variant=*)
                variant=":${i#*=}"
                shift
                ;;
            *) pos_args+=("$i") ;;
        esac
    done
@ -431,14 +449,14 @@ install_template() {
    info_msg "install (eval=$do_eval): ${dst}"
    [[ -n $variant ]] && info_msg "variant --> ${variant}"
-    if [[ ! -f "${template_origin}" ]] ; then
+    if [[ ! -f ${template_origin} ]]; then
        err_msg "${template_origin} does not exists"
        err_msg "... can't install $dst"
        wait_key 30
        return 42
    fi
-    if [[ "$do_eval" == "1" ]]; then
+    if [[ $do_eval == "1" ]]; then
        template_file="${CACHE}${dst}${variant}"
        info_msg "BUILD ${template_file}"
        info_msg "BUILD using template ${template_origin}"
@ -448,7 +466,7 @@ install_template() {
            mkdir -p "$(dirname "${template_file}")"
        fi
        # shellcheck disable=SC2086
-        eval "echo \"$(cat ${template_origin})\"" > "${template_file}"
+        eval "echo \"$(cat ${template_origin})\"" >"${template_file}"
        if [[ -n ${SUDO_USER} ]]; then
            chown "${SUDO_USER}:${SUDO_USER}" "${template_file}"
        fi
@ -458,14 +476,14 @@ install_template() {
    mkdir -p "$(dirname "${dst}")"
-    if [[ ! -f "${dst}" ]]; then
+    if [[ ! -f ${dst} ]]; then
        info_msg "install: ${template_file}"
        sudo -H install -v -o "${owner}" -g "${group}" -m "${chmod}" \
            "${template_file}" "${dst}" | prefix_stdout
        return $?
    fi
-    if [[ -f "${dst}" ]] && cmp --silent "${template_file}" "${dst}" ; then
+    if [[ -f ${dst} ]] && cmp --silent "${template_file}" "${dst}"; then
        info_msg "file ${dst} already installed"
        return 0
    fi
@ -503,6 +521,7 @@ install_template() {
                ;;
            "diff files")
                $DIFF_CMD "${dst}" "${template_file}" | prefix_stdout
                ;;
        esac
    done
 }
@ -517,11 +536,11 @@ service_is_available() {
        --silent -o /dev/null --head --write-out '%{http_code}' --insecure \
        "${URL}")
    exit_val=$?
-    if [[ $exit_val = 0 ]]; then
+    if [[ $exit_val == 0 ]]; then
        info_msg "got $http_code from ${URL}"
    fi
    case "$http_code" in
-        404|410|423) exit_val=$http_code;;
+        404 | 410 | 423) exit_val=$http_code ;;
    esac
    return "$exit_val"
 }
@ -549,7 +568,7 @@ PYBUILD="${PYBUILD:=build/py${PY}}"
 #PY_SETUP_EXTRAS='[develop,test]'
 PY_SETUP_EXTRAS="${PY_SETUP_EXTRAS:=[develop,test]}"
-PIP_BOILERPLATE=( pip wheel setuptools )
+PIP_BOILERPLATE=(pip wheel setuptools)
 # shellcheck disable=SC2120
 pyenv() {
@ -563,28 +582,28 @@ pyenv() {
    # files.
    required_commands \
-        sha256sum "${PYTHON}" \
+        sha256sum "${PYTHON}" ||
-        || exit
+        exit
    local pip_req=()
-    if ! pyenv.OK > /dev/null; then
+    if ! pyenv.OK >/dev/null; then
        rm -f "${PY_ENV}/${PY_ENV_REQ}.sha256"
-        pyenv.drop > /dev/null
+        pyenv.drop >/dev/null
        build_msg PYENV "[virtualenv] installing ${PY_ENV_REQ} into ${PY_ENV}"
        "${PYTHON}" -m venv "$@" "${PY_ENV}"
        "${PY_ENV_BIN}/python" -m pip install -U "${PIP_BOILERPLATE[@]}"
        for i in ${PY_ENV_REQ}; do
-            pip_req=( "${pip_req[@]}" "-r" "$i" )
+            pip_req=("${pip_req[@]}" "-r" "$i")
        done
        (
            [ "$VERBOSE" = "1" ] && set -x
            # shellcheck disable=SC2086
-            "${PY_ENV_BIN}/python" -m pip install "${pip_req[@]}" \
+            "${PY_ENV_BIN}/python" -m pip install "${pip_req[@]}" &&
-                && sha256sum ${PY_ENV_REQ} > "${PY_ENV}/requirements.sha256"
+                sha256sum ${PY_ENV_REQ} >"${PY_ENV}/requirements.sha256"
        )
    fi
    pyenv.OK
@ -602,17 +621,17 @@ pyenv.OK() {
        return 1
    fi
-    if [ ! -f "${PY_ENV}/requirements.sha256" ] \
+    if [ ! -f "${PY_ENV}/requirements.sha256" ] ||
-        || ! sha256sum -c "${PY_ENV}/requirements.sha256" > /dev/null 2>&1; then
+        ! sha256sum -c "${PY_ENV}/requirements.sha256" >/dev/null 2>&1; then
        build_msg PYENV "[virtualenv] requirements.sha256 failed"
        sed 's/^/          [virtualenv] - /' <"${PY_ENV}/requirements.sha256"
        return 1
    fi
    if [ "$VERBOSE" = "1" ]; then
-        pyenv.check \
+        pyenv.check |
-            | "${PY_ENV_BIN}/python" 2>&1 \
+            "${PY_ENV_BIN}/python" 2>&1 |
-            | prefix_stdout "${_Blue}PYENV     ${_creset}[check] "
+            prefix_stdout "${_Blue}PYENV     ${_creset}[check] "
    else
        pyenv.check | "${PY_ENV_BIN}/python" 1>/dev/null
    fi
@ -657,9 +676,9 @@ EOF
 pyenv.install() {
    if ! pyenv.OK; then
-        py.clean > /dev/null
+        py.clean >/dev/null
    fi
-    if ! pyenv.install.OK > /dev/null; then
+    if ! pyenv.install.OK >/dev/null; then
        build_msg PYENV "[install] ${PYOBJECTS}"
        if ! pyenv.OK >/dev/null; then
            pyenv
@ -708,19 +727,19 @@ pyenv.uninstall() {
    build_msg PYENV "[uninstall] ${PYOBJECTS}"
    if [ "." = "${PYOBJECTS}" ]; then
-	pyenv.cmd python setup.py develop --uninstall 2>&1 \
+        pyenv.cmd python setup.py develop --uninstall 2>&1 |
-            | prefix_stdout "${_Blue}PYENV     ${_creset}[pyenv.uninstall] "
+            prefix_stdout "${_Blue}PYENV     ${_creset}[pyenv.uninstall] "
    else
        # shellcheck disable=SC2086
-	pyenv.cmd python -m pip uninstall --yes ${PYOBJECTS} 2>&1 \
+        pyenv.cmd python -m pip uninstall --yes ${PYOBJECTS} 2>&1 |
-            | prefix_stdout "${_Blue}PYENV     ${_creset}[pyenv.uninstall] "
+            prefix_stdout "${_Blue}PYENV     ${_creset}[pyenv.uninstall] "
    fi
 }
 pyenv.cmd() {
    pyenv.install
-    (   set -e
+    (
        set -e
        # shellcheck source=/dev/null
        source "${PY_ENV_BIN}/activate"
        [ "$VERBOSE" = "1" ] && set -x
@ -728,14 +747,12 @@ pyenv.cmd() {
    )
 }
 pyenv.activate() {
    pyenv.install
    # shellcheck source=/dev/null
    source "${PY_ENV_BIN}/activate"
 }
 # Sphinx doc
 # ----------
@ -804,25 +821,25 @@ docs.gh-pages() {
    (
        git worktree remove -f "${GH_PAGES}"
        git branch -D gh-pages
-    ) &> /dev/null  || true
+    ) &>/dev/null || true
    git worktree add --no-checkout "${GH_PAGES}" "${remote}/master"
-    pushd "${GH_PAGES}" &> /dev/null
+    pushd "${GH_PAGES}" &>/dev/null
    git checkout --orphan gh-pages
    git rm -rfq .
-    popd &> /dev/null
+    popd &>/dev/null
    cp -r "${DOCS_DIST}"/* "${GH_PAGES}"/
    touch "${GH_PAGES}/.nojekyll"
-    cat > "${GH_PAGES}/404.html" <<EOF
+    cat >"${GH_PAGES}/404.html" <<EOF
 <html><head><META http-equiv='refresh' content='0;URL=index.html'></head></html>
 EOF
-    pushd "${GH_PAGES}" &> /dev/null
+    pushd "${GH_PAGES}" &>/dev/null
    git add --all .
    git commit -q -m "gh-pages build from: ${branch}@${head} (${remote_url})"
    git push -f "${remote}" gh-pages
-    popd &> /dev/null
+    popd &>/dev/null
    set +x
    build_msg GH-PAGES "deployed"
@ -850,7 +867,7 @@ drop_service_account() {
    fi
 }
-interactive_shell(){
+interactive_shell() {
    # usage:  interactive_shell "${SERVICE_USER}"
@ -858,7 +875,6 @@ interactive_shell(){
    sudo -H -u "${1}" -i
 }
 # systemd
 # -------
@ -927,7 +943,6 @@ systemctl status --no-pager ${1}.service
 EOF
 }
 # nginx
 # -----
@ -945,14 +960,14 @@ nginx_distro_setup() {
    NGINX_APPS_AVAILABLE="/etc/nginx/default.apps-available"
    case $DIST_ID-$DIST_VERS in
-        ubuntu-*|debian-*)
+        ubuntu-* | debian-*)
            NGINX_PACKAGES="nginx"
            NGINX_DEFAULT_SERVER=/etc/nginx/sites-available/default
            ;;
        arch-*)
            NGINX_PACKAGES="nginx-mainline"
            ;;
-        fedora-*|centos-7)
+        fedora-* | centos-7)
            NGINX_PACKAGES="nginx"
            ;;
        *)
@ -961,11 +976,11 @@ nginx_distro_setup() {
    esac
 }
-install_nginx(){
+install_nginx() {
    info_msg "installing nginx ..."
    pkg_install "${NGINX_PACKAGES}"
    case $DIST_ID-$DIST_VERS in
-        arch-*|fedora-*|centos-7)
+        arch-* | fedora-* | centos-7)
            systemctl enable nginx
            systemctl start nginx
            ;;
@ -998,8 +1013,8 @@ nginx_install_app() {
    for i in "$@"; do
        case $i in
-            -*) template_opts+=("$i");;
+            -*) template_opts+=("$i") ;;
-            *)  pos_args+=("$i");;
+            *) pos_args+=("$i") ;;
        esac
    done
@ -1042,23 +1057,22 @@ nginx_include_apps_enabled() {
    (
        local line
        local stage=0
-        while IFS=  read -r line
+        while IFS= read -r line; do
        do
            echo "$line"
-            if [[ $stage = 0 ]]; then
+            if [[ $stage == 0 ]]; then
                if [[ $line =~ ^[[:space:]]*server*[[:space:]]*\{ ]]; then
                    stage=1
                fi
            fi
-            if [[ $stage = 1 ]]; then
+            if [[ $stage == 1 ]]; then
                echo "        # Load configuration files for the default server block."
                echo "        $include_directive"
                echo ""
                stage=2
            fi
-        done < "${server_conf}.bak"
+        done <"${server_conf}.bak"
-    ) > "${server_conf}"
+    ) >"${server_conf}"
 }
@ -1095,14 +1109,13 @@ nginx_disable_app() {
    nginx_reload
 }
 # Apache
 # ------
 apache_distro_setup() {
    # shellcheck disable=SC2034
    case $DIST_ID-$DIST_VERS in
-        ubuntu-*|debian-*)
+        ubuntu-* | debian-*)
            # debian uses the /etc/apache2 path, while other distros use
            # the apache default at /etc/httpd
            APACHE_SITES_AVAILABLE="/etc/apache2/sites-available"
@ -1116,7 +1129,7 @@ apache_distro_setup() {
            APACHE_MODULES="modules"
            APACHE_PACKAGES="apache"
            ;;
-        fedora-*|centos-7)
+        fedora-* | centos-7)
            APACHE_SITES_AVAILABLE="/etc/httpd/sites-available"
            APACHE_SITES_ENABLED="/etc/httpd/sites-enabled"
            APACHE_MODULES="modules"
@ -1128,13 +1141,13 @@ apache_distro_setup() {
    esac
 }
-install_apache(){
+install_apache() {
    info_msg "installing apache ..."
    pkg_install "$APACHE_PACKAGES"
    case $DIST_ID-$DIST_VERS in
-        arch-*|fedora-*|centos-7)
+        arch-* | fedora-* | centos-7)
            if ! grep "IncludeOptional sites-enabled" "/etc/httpd/conf/httpd.conf"; then
-                echo "IncludeOptional sites-enabled/*.conf" >> "/etc/httpd/conf/httpd.conf"
+                echo "IncludeOptional sites-enabled/*.conf" >>"/etc/httpd/conf/httpd.conf"
            fi
            systemctl enable httpd
            systemctl start httpd
@ -1144,9 +1157,9 @@ install_apache(){
 apache_is_installed() {
    case $DIST_ID-$DIST_VERS in
-        ubuntu-*|debian-*) (command -v apachectl) &>/dev/null;;
+        ubuntu-* | debian-*) (command -v apachectl) &>/dev/null ;;
-        arch-*) (command -v httpd) &>/dev/null;;
+        arch-*) (command -v httpd) &>/dev/null ;;
-        fedora-*|centos-7) (command -v httpd) &>/dev/null;;
+        fedora-* | centos-7) (command -v httpd) &>/dev/null ;;
    esac
 }
@ -1155,11 +1168,11 @@ apache_reload() {
    info_msg "reload apache .."
    echo
    case $DIST_ID-$DIST_VERS in
-        ubuntu-*|debian-*)
+        ubuntu-* | debian-*)
            sudo -H apachectl configtest
            sudo -H systemctl force-reload apache2
            ;;
-        arch-*|fedora-*|centos-7)
+        arch-* | fedora-* | centos-7)
            sudo -H httpd -t
            sudo -H systemctl force-reload httpd
            ;;
@ -1177,8 +1190,8 @@ apache_install_site() {
    for i in "$@"; do
        case $i in
-            -*) template_opts+=("$i");;
+            -*) template_opts+=("$i") ;;
-            *)  pos_args+=("$i");;
+            *) pos_args+=("$i") ;;
        esac
    done
@ -1207,7 +1220,7 @@ apache_enable_site() {
    info_msg "enable apache site: ${CONF}"
    case $DIST_ID-$DIST_VERS in
-        ubuntu-*|debian-*)
+        ubuntu-* | debian-*)
            sudo -H a2ensite -q "${CONF}"
            ;;
        arch-*)
@ -1215,7 +1228,7 @@ apache_enable_site() {
            rm -f "${APACHE_SITES_ENABLED}/${CONF}"
            ln -s "${APACHE_SITES_AVAILABLE}/${CONF}" "${APACHE_SITES_ENABLED}/${CONF}"
            ;;
-        fedora-*|centos-7)
+        fedora-* | centos-7)
            mkdir -p "${APACHE_SITES_ENABLED}"
            rm -f "${APACHE_SITES_ENABLED}/${CONF}"
            ln -s "${APACHE_SITES_AVAILABLE}/${CONF}" "${APACHE_SITES_ENABLED}/${CONF}"
@ -1233,13 +1246,13 @@ apache_disable_site() {
    info_msg "disable apache site: ${CONF}"
    case $DIST_ID-$DIST_VERS in
-        ubuntu-*|debian-*)
+        ubuntu-* | debian-*)
            sudo -H a2dissite -q "${CONF}"
            ;;
        arch-*)
            rm -f "${APACHE_SITES_ENABLED}/${CONF}"
            ;;
-        fedora-*|centos-7)
+        fedora-* | centos-7)
            rm -f "${APACHE_SITES_ENABLED}/${CONF}"
            ;;
    esac
@ -1256,7 +1269,7 @@ uWSGI_SETUP="${uWSGI_SETUP:=/etc/uwsgi}"
 uWSGI_distro_setup() {
    case $DIST_ID-$DIST_VERS in
-        ubuntu-*|debian-*)
+        ubuntu-* | debian-*)
            # init.d --> /usr/share/doc/uwsgi/README.Debian.gz
            # For uWSGI debian uses the LSB init process, this might be changed
            # one day, see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=833067
@ -1273,7 +1286,7 @@ uWSGI_distro_setup() {
            uWSGI_APPS_ENABLED="${uWSGI_SETUP}"
            uWSGI_PACKAGES="uwsgi"
            ;;
-        fedora-*|centos-7)
+        fedora-* | centos-7)
            # systemd --> /usr/lib/systemd/system/uwsgi.service
            # Fedora runs uWSGI in emperor-tyrant mode: in Tyrant mode the
            # Emperor will run the vassal using the UID/GID of the vassal
@ -1287,14 +1300,14 @@ uWSGI_distro_setup() {
        *)
            err_msg "$DIST_ID-$DIST_VERS: uWSGI not yet implemented"
            ;;
-esac
+    esac
 }
-install_uwsgi(){
+install_uwsgi() {
    info_msg "installing uwsgi ..."
    pkg_install "$uWSGI_PACKAGES"
    case $DIST_ID-$DIST_VERS in
-        fedora-*|centos-7)
+        fedora-* | centos-7)
            # enable & start should be called once at uWSGI installation time
            systemctl enable uwsgi
            systemctl restart uwsgi
@ -1311,7 +1324,7 @@ uWSGI_restart() {
    [[ -z $CONF ]] && die_caller 42 "missing argument <myapp.ini>"
    info_msg "restart uWSGI service"
    case $DIST_ID-$DIST_VERS in
-        ubuntu-*|debian-*)
+        ubuntu-* | debian-*)
            # the 'service' method seems broken in that way, that it (re-)starts
            # the whole uwsgi process.
            service uwsgi restart "${CONF%.*}"
@ -1324,7 +1337,7 @@ uWSGI_restart() {
                info_msg "[uWSGI:systemd-template] ${CONF} not installed (no need to restart)"
            fi
            ;;
-        fedora-*|centos-7)
+        fedora-* | centos-7)
            # in emperor mode, just touch the file to restart
            if uWSGI_app_enabled "${CONF}"; then
                touch "${uWSGI_APPS_ENABLED}/${CONF}"
@ -1360,8 +1373,8 @@ uWSGI_install_app() {
    for i in "$@"; do
        case $i in
-            -*) template_opts+=("$i");;
+            -*) template_opts+=("$i") ;;
-            *)  pos_args+=("$i");;
+            *) pos_args+=("$i") ;;
        esac
    done
    mkdir -p "${uWSGI_APPS_AVAILABLE}"
@ -1394,7 +1407,7 @@ uWSGI_app_enabled() {
    [[ -z $CONF ]] && die_caller 42 "missing argument <myapp.ini>"
    case $DIST_ID-$DIST_VERS in
-        ubuntu-*|debian-*)
+        ubuntu-* | debian-*)
            [[ -f "${uWSGI_APPS_ENABLED}/${CONF}" ]]
            exit_val=$?
            ;;
@ -1402,7 +1415,7 @@ uWSGI_app_enabled() {
            systemctl -q is-enabled "uwsgi@${CONF%.*}"
            exit_val=$?
            ;;
-        fedora-*|centos-7)
+        fedora-* | centos-7)
            [[ -f "${uWSGI_APPS_ENABLED}/${CONF}" ]]
            exit_val=$?
            ;;
@ -1424,7 +1437,7 @@ uWSGI_enable_app() {
    [[ -z $CONF ]] && die_caller 42 "missing argument <myapp.ini>"
    case $DIST_ID-$DIST_VERS in
-        ubuntu-*|debian-*)
+        ubuntu-* | debian-*)
            mkdir -p "${uWSGI_APPS_ENABLED}"
            rm -f "${uWSGI_APPS_ENABLED}/${CONF}"
            ln -s "${uWSGI_APPS_AVAILABLE}/${CONF}" "${uWSGI_APPS_ENABLED}/${CONF}"
@ -1437,7 +1450,7 @@ uWSGI_enable_app() {
            systemctl enable "uwsgi@${CONF%.*}"
            info_msg "enabled uWSGI app: ${CONF} (restart required)"
            ;;
-        fedora-*|centos-7)
+        fedora-* | centos-7)
            mkdir -p "${uWSGI_APPS_ENABLED}"
            rm -f "${uWSGI_APPS_ENABLED}/${CONF}"
            ln -s "${uWSGI_APPS_AVAILABLE}/${CONF}" "${uWSGI_APPS_ENABLED}/${CONF}"
@ -1458,7 +1471,7 @@ uWSGI_disable_app() {
    [[ -z $CONF ]] && die_caller 42 "missing argument <myapp.ini>"
    case $DIST_ID-$DIST_VERS in
-        ubuntu-*|debian-*)
+        ubuntu-* | debian-*)
            service uwsgi stop "${CONF%.*}"
            rm -f "${uWSGI_APPS_ENABLED}/${CONF}"
            info_msg "disabled uWSGI app: ${CONF} (restart uWSGI required)"
@ -1468,7 +1481,7 @@ uWSGI_disable_app() {
            systemctl disable "uwsgi@${CONF%.*}"
            rm -f "${uWSGI_APPS_ENABLED}/${CONF}"
            ;;
-        fedora-*|centos-7)
+        fedora-* | centos-7)
            # in emperor mode, just remove the app.ini file
            rm -f "${uWSGI_APPS_ENABLED}/${CONF}"
            ;;
@ -1497,7 +1510,7 @@ pkg_install() {
        return 42
    fi
    case $DIST_ID in
-        ubuntu|debian)
+        ubuntu | debian)
            if [[ $_apt_pkg_info_is_updated == 0 ]]; then
                export _apt_pkg_info_is_updated=1
                apt update
@ -1533,7 +1546,7 @@ pkg_remove() {
        return 42
    fi
    case $DIST_ID in
-        ubuntu|debian)
+        ubuntu | debian)
            # shellcheck disable=SC2068
            apt-get purge --autoremove --ignore-missing -y $@
            ;;
@ -1557,20 +1570,20 @@ pkg_is_installed() {
    # usage: pkg_is_install foopkg || pkg_install foopkg
    case $DIST_ID in
-        ubuntu|debian)
+        ubuntu | debian)
-            dpkg -l "$1" &> /dev/null
+            dpkg -l "$1" &>/dev/null
            return $?
            ;;
        arch)
-            pacman -Qsq "$1" &> /dev/null
+            pacman -Qsq "$1" &>/dev/null
            return $?
            ;;
        fedora)
-            dnf list -q --installed "$1" &> /dev/null
+            dnf list -q --installed "$1" &>/dev/null
            return $?
            ;;
        centos)
-            yum list -q --installed "$1" &> /dev/null
+            yum list -q --installed "$1" &>/dev/null
            return $?
            ;;
    esac
@ -1601,15 +1614,15 @@ git_clone() {
    local bash_cmd="bash"
    local remote="origin"
-    if [[ ! "${dest:0:1}" = "/" ]]; then
+    if [[ ${dest:0:1} != "/" ]]; then
        dest="$CACHE/$dest"
    fi
    [[ -z $branch ]] && branch=master
-    [[ -z $user ]] && [[ -n "${SUDO_USER}" ]] && user="${SUDO_USER}"
+    [[ -z $user ]] && [[ -n ${SUDO_USER} ]] && user="${SUDO_USER}"
    [[ -n $user ]] && bash_cmd="sudo -H -u $user -i"
-    if [[ -d "${dest}" ]] ; then
+    if [[ -d ${dest} ]]; then
        info_msg "already cloned: $dest"
        tee_stderr 0.1 <<EOF | $bash_cmd 2>&1 | prefix_stdout "  ${_Yellow}|$user|${_creset} "
 cd "${dest}"
@ -1684,7 +1697,7 @@ LXC_BASE_PACKAGES_centos="bash git python3"
 lxc_distro_setup() {
    case $DIST_ID in
-        ubuntu|debian) LXC_BASE_PACKAGES="${LXC_BASE_PACKAGES_debian}" ;;
+        ubuntu | debian) LXC_BASE_PACKAGES="${LXC_BASE_PACKAGES_debian}" ;;
        arch) LXC_BASE_PACKAGES="${LXC_BASE_PACKAGES_arch}" ;;
        fedora) LXC_BASE_PACKAGES="${LXC_BASE_PACKAGES_fedora}" ;;
        centos) LXC_BASE_PACKAGES="${LXC_BASE_PACKAGES_centos}" ;;
@ -1700,19 +1713,18 @@ lxc_install_base_packages() {
    pkg_install "${LXC_BASE_PACKAGES}"
 }
 lxc_image_copy() {
    # usage: lxc_image_copy <remote image> <local image>
    #
    #        lxc_image_copy "images:ubuntu/20.04"  "ubu2004"
-    if lxc_image_exists "local:${LXC_SUITE[i+1]}"; then
+    if lxc_image_exists "local:${LXC_SUITE[i + 1]}"; then
-        info_msg "image ${LXC_SUITE[i]} already copied --> ${LXC_SUITE[i+1]}"
+        info_msg "image ${LXC_SUITE[i]} already copied --> ${LXC_SUITE[i + 1]}"
    else
-        info_msg "copy image locally ${LXC_SUITE[i]} --> ${LXC_SUITE[i+1]}"
+        info_msg "copy image locally ${LXC_SUITE[i]} --> ${LXC_SUITE[i + 1]}"
        lxc image copy "${LXC_SUITE[i]}" local: \
-            --alias  "${LXC_SUITE[i+1]}" | prefix_stdout
+            --alias "${LXC_SUITE[i + 1]}" | prefix_stdout
    fi
 }
@ -1731,14 +1743,14 @@ lxc_init_container() {
    fi
 }
-lxc_exists(){
+lxc_exists() {
    # usage: lxc_exists <name> || echo "container <name> does not exists"
    lxc info "$1" &>/dev/null
 }
-lxc_image_exists(){
+lxc_image_exists() {
    # usage: lxc_image_exists <alias> || echo "image <alias> does locally not exists"
    lxc image info "local:$1" &>/dev/null
@ -1766,11 +1778,10 @@ lxc_delete_local_image() {
    lxc image delete "local:$i"
 }
 # IP
 # --
-global_IPs(){
+global_IPs() {
    # usage: global_IPS
    #
    # print list of host's SCOPE global addresses and adapters e.g::
@ -1787,9 +1798,9 @@ primary_ip() {
    case $DIST_ID in
        arch)
-            ip -o addr show \
+            ip -o addr show |
-                | sed -nr 's/[0-9]*:\s*([a-z0-9]*).*inet[6]?\s*([a-z0-9.:]*).*scope global.*/\2/p' \
+                sed -nr 's/[0-9]*:\s*([a-z0-9]*).*inet[6]?\s*([a-z0-9.:]*).*scope global.*/\2/p' |
-                | head -n 1
+                head -n 1
            ;;
        *) hostname -I | cut -d' ' -f1 ;;
    esac
@ -1798,7 +1809,7 @@ primary_ip() {
 # URL
 # ---
-url_replace_hostname(){
+url_replace_hostname() {
    # usage:  url_replace_hostname <url> <new hostname>
--- a/utils/lib_go.sh
+++ b/utils/lib_go.sh
@ -23,14 +23,14 @@
 # configure golang environment
 # ----------------------------
-[[ -z "${GO_VERSION}" ]] && GO_VERSION="go1.17.3"
+[[ -z ${GO_VERSION} ]] && GO_VERSION="go1.17.3"
 GO_DL_URL="https://golang.org/dl"
 # implement go functions
 # -----------------------
-go.help(){
+go.help() {
    cat <<EOF
 go.:
  ls        : list golang binary archives (stable)
@ -40,7 +40,7 @@ go.:
 EOF
 }
-go.ls(){
+go.ls() {
    python <<EOF
 import sys, json, requests
 resp = requests.get("${GO_DL_URL}/?mode=json&include=all")
@ -54,7 +54,7 @@ for ver in json.loads(resp.text):
 EOF
 }
-go.ver_info(){
+go.ver_info() {
    # print information about a golang distribution. To print filename
    # sha256 and size of the archive that fits to your OS and host:
@ -140,14 +140,14 @@ go.golang() {
    info_msg "Download go binary ${fname} (${size}B)"
    cache_download "${GO_DL_URL}/${fname}" "${fname}"
-    pushd "${CACHE}" &> /dev/null
+    pushd "${CACHE}" &>/dev/null
-    echo "${sha}  ${fname}" > "${fname}.sha256"
+    echo "${sha}  ${fname}" >"${fname}.sha256"
    if ! sha256sum -c "${fname}.sha256" >/dev/null; then
        die 42 "downloaded file ${fname} checksum does not match"
    else
        info_msg "${fname} checksum OK"
    fi
-    popd &> /dev/null
+    popd &>/dev/null
    info_msg "install golang"
    tee_stderr 0.1 <<EOF | sudo -i -u "${user}" | prefix_stdout "${userpr}"
@ -201,7 +201,7 @@ go.bash() {
    sudo -i -u "${user}" bash --init-file "~${user}/.go_env"
 }
-go.version(){
+go.version() {
    local user
    user="${1:-${USERNAME}}"
    sudo -i -u "${user}" <<EOF
--- a/utils/lib_nvm.sh
+++ b/utils/lib_nvm.sh
@ -17,8 +17,8 @@ declare main_cmd
 NVM_LOCAL_FOLDER=.nvm
-[[ -z "${NVM_GIT_URL}" ]] &&  NVM_GIT_URL="https://github.com/nvm-sh/nvm.git"
+[[ -z ${NVM_GIT_URL} ]] && NVM_GIT_URL="https://github.com/nvm-sh/nvm.git"
-[[ -z "${NVM_MIN_NODE_VER}" ]] && NVM_MIN_NODE_VER="16.13.0"
+[[ -z ${NVM_MIN_NODE_VER} ]] && NVM_MIN_NODE_VER="16.13.0"
 # initialize nvm environment
 # -------------------------
@ -35,7 +35,7 @@ nvm.is_installed() {
    [[ -f "${NVM_DIR}/nvm.sh" ]]
 }
-if [[ -z "${NVM_DIR}" ]]; then
+if [[ -z ${NVM_DIR} ]]; then
    # nvm is not pre-installed in $HOME.  Prepare for using nvm from <repo-root>
    NVM_DIR="$(git rev-parse --show-toplevel)/${NVM_LOCAL_FOLDER}"
 fi
@ -105,7 +105,7 @@ nvm.install() {
    info_msg "install (update) NVM at ${NVM_DIR}"
    if nvm.is_installed; then
        info_msg "already cloned at: ${NVM_DIR}"
-        pushd "${NVM_DIR}" &> /dev/null
+        pushd "${NVM_DIR}" &>/dev/null
        git fetch --all | prefix_stdout "  ${_Yellow}||${_creset} "
    else
        # delete any leftovers from previous installations
@ -114,14 +114,14 @@ nvm.install() {
        fi
        info_msg "clone: ${NVM_GIT_URL}"
        git clone "${NVM_GIT_URL}" "${NVM_DIR}" 2>&1 | prefix_stdout "  ${_Yellow}||${_creset} "
-        pushd "${NVM_DIR}" &> /dev/null
+        pushd "${NVM_DIR}" &>/dev/null
        git config --local advice.detachedHead false
    fi
    NVM_VERSION_TAG="$(git rev-list --tags --max-count=1)"
    NVM_VERSION_TAG="$(git describe --abbrev=0 --tags --match "v[0-9]*" "${NVM_VERSION_TAG}")"
    info_msg "checkout ${NVM_VERSION_TAG}"
    git checkout "${NVM_VERSION_TAG}" 2>&1 | prefix_stdout "  ${_Yellow}||${_creset} "
-    popd &> /dev/null
+    popd &>/dev/null
    if [ -f "${REPO_ROOT}/.nvm_packages" ]; then
        cp "${REPO_ROOT}/.nvm_packages" "${NVM_DIR}/default-packages"
    fi
--- a/utils/lib_redis.sh
+++ b/utils/lib_redis.sh
@ -12,7 +12,7 @@ REDIS_GROUP="searxng-redis"
 REDIS_SERVICE_NAME="searxng-redis"
 REDIS_SYSTEMD_UNIT="${SYSTEMD_UNITS}/${REDIS_SERVICE_NAME}.service"
-redis.help(){
+redis.help() {
    cat <<EOF
 redis.:
  remove    : delete user (${REDIS_USER}) and remove service (${REDIS_SERVICE_NAME})
@ -21,7 +21,6 @@ redis.:
 EOF
 }
 redis.remove() {
    sudo_or_exit
    (
@ -36,7 +35,6 @@ redis.shell() {
    interactive_shell "${REDIS_USER}"
 }
 redis.userdel() {
    sudo_or_exit
    drop_service_account "${REDIS_USER}"
--- a/utils/lib_sxng_container.sh
+++ b/utils/lib_sxng_container.sh
@ -117,7 +117,7 @@ container.build() {
            --tag="localhost/$CONTAINER_IMAGE_ORGANIZATION/$CONTAINER_IMAGE_NAME:builder" \
            --file="./container/$dockerfile" \
            .
-        build_msg CONTAINER "Image \"builder\" built"
+        build_msg CONTAINER 'Image "builder" built'
        # shellcheck disable=SC2086
        "$container_engine" $params_build \
--- a/utils/lib_sxng_data.sh
+++ b/utils/lib_sxng_data.sh
@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # SPDX-License-Identifier: AGPL-3.0-or-later
-data.help(){
+data.help() {
    cat <<EOF
 data.:
  all       : update searx/sxng_locales.py and searx/data/*
@ -13,7 +13,8 @@ EOF
 }
 data.all() {
-    (   set -e
+    (
        set -e
        pyenv.activate
        data.traits
@ -35,9 +36,9 @@ data.all() {
    )
 }
 data.traits() {
-    (   set -e
+    (
        set -e
        pyenv.activate
        build_msg DATA "update searx/data/engine_traits.json"
        python searxng_extra/update/update_engine_traits.py
@ -53,7 +54,8 @@ data.useragents() {
 }
 data.locales() {
-    (   set -e
+    (
        set -e
        pyenv.activate
        build_msg DATA "update searx/data/locales.json"
        python searxng_extra/update/update_locales.py
@ -61,8 +63,9 @@ data.locales() {
    dump_return $?
 }
-data.currencies(){
+data.currencies() {
-    (   set -e
+    (
        set -e
        pyenv.activate
        build_msg DATA "update searx/data/currencies.json"
        python searxng_extra/update/update_currencies.py
--- a/utils/lib_sxng_node.sh
+++ b/utils/lib_sxng_node.sh
@ -6,7 +6,7 @@ declare _creset
 export NODE_MINIMUM_VERSION="18.17.0"
-node.help(){
+node.help() {
    cat <<EOF
 node.:
  env       : download & install SearXNG's npm dependencies locally
@ -24,7 +24,8 @@ nodejs.ensure() {
 node.env() {
    nodejs.ensure
-    (   set -e
+    (
        set -e
        build_msg INSTALL "[npm] ./client/simple/package.json"
        npm --prefix client/simple install
    )
@ -43,17 +44,19 @@ node.clean() {
        return 0
    fi
    build_msg CLEAN "themes -- locally installed npm dependencies"
-    (   set -e
+    (
-        npm --prefix client/simple run clean \
+        set -e
-	    | prefix_stdout "${_Blue}CLEAN    ${_creset} "
+        npm --prefix client/simple run clean |
            prefix_stdout "${_Blue}CLEAN    ${_creset} "
        if [ "${PIPESTATUS[0]}" -ne "0" ]; then
            return 1
        fi
    )
    build_msg CLEAN "locally installed developer and CI tools"
-    (   set -e
+    (
-        npm --prefix . run clean \
+        set -e
-	    | prefix_stdout "${_Blue}CLEAN    ${_creset} "
+        npm --prefix . run clean |
            prefix_stdout "${_Blue}CLEAN    ${_creset} "
        if [ "${PIPESTATUS[0]}" -ne "0" ]; then
            return 1
        fi
--- a/utils/lib_sxng_static.sh
+++ b/utils/lib_sxng_static.sh
@ -1,7 +1,6 @@
 #!/usr/bin/env bash
 # SPDX-License-Identifier: AGPL-3.0-or-later
 STATIC_BUILD_COMMIT="[build] /static"
 STATIC_BUILT_PATHS=(
    'searx/templates/simple/icons.html'
@ -9,7 +8,7 @@ STATIC_BUILT_PATHS=(
    'client/simple/package-lock.json'
 )
-static.help(){
+static.help() {
    cat <<EOF
 static.build.:  ${STATIC_BUILD_COMMIT}
  commit    : build & commit /static folder
@ -57,7 +56,7 @@ static.build.drop() {
    # get only last (option -n1) local commit not in remotes
    branch="$(git branch --show-current)"
-    last_commit_id="$(git log -n1 "${branch}" --pretty=format:'%h'\
+    last_commit_id="$(git log -n1 "${branch}" --pretty=format:'%h' \
        --not --exclude="${branch}" --branches --remotes)"
    if [ -z "${last_commit_id}" ]; then
@ -96,7 +95,8 @@ static.build.commit() {
    # drop existing commit from previous build
    static.build.drop &>/dev/null
-    (   set -e
+    (
        set -e
        # fix & build the themes
        themes.fix
        themes.lint
--- a/utils/lib_sxng_test.sh
+++ b/utils/lib_sxng_test.sh
@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # SPDX-License-Identifier: AGPL-3.0-or-later
-test.help(){
+test.help() {
    cat <<EOF
 test.:
  yamllint  : lint YAML files (YAMLLINT_FILES)
@ -22,13 +22,14 @@ if [ "$VERBOSE" = "1" ]; then
 fi
 test.yamllint() {
-    build_msg TEST "[yamllint] \$YAMLLINT_FILES"
+    build_msg TEST "[yamllint] ${YAMLLINT_FILES[*]}"
    pyenv.cmd yamllint --strict --format parsable "${YAMLLINT_FILES[@]}"
    dump_return $?
 }
 test.pylint() {
-    (   set -e
+    (
        set -e
        pyenv.activate
        PYLINT_OPTIONS="--rcfile .pylintrc"
@ -63,13 +64,13 @@ test.types.dev() {
    build_msg TEST "[pyright/types] suppress warnings related to intentional monkey patching"
    # We run Pyright in the virtual environment because pyright executes
    # "python" to determine the Python version.
-    pyenv.cmd npx --no-install pyright -p pyrightconfig.json \
+    pyenv.cmd npx --no-install pyright -p pyrightconfig.json |
-        | grep -E '\.py:[0-9]+:[0-9]+'\
+        grep -E '\.py:[0-9]+:[0-9]+' |
-        | grep -v '/engines/.*.py.* - warning: "logger" is not defined'\
+        grep -v '/engines/.*.py.* - warning: "logger" is not defined' |
-        | grep -v '/plugins/.*.py.* - error: "logger" is not defined'\
+        grep -v '/plugins/.*.py.* - error: "logger" is not defined' |
-        | grep -v '/engines/.*.py.* - warning: "supported_languages" is not defined' \
+        grep -v '/engines/.*.py.* - warning: "supported_languages" is not defined' |
-        | grep -v '/engines/.*.py.* - warning: "language_aliases" is not defined' \
+        grep -v '/engines/.*.py.* - warning: "language_aliases" is not defined' |
-        | grep -v '/engines/.*.py.* - warning: "categories" is not defined'
+        grep -v '/engines/.*.py.* - warning: "categories" is not defined'
    # ignore exit value from pyright
    # dump_return ${PIPESTATUS[0]}
    return 0
@ -88,13 +89,13 @@ test.types.ci() {
    build_msg TEST "[pyright] suppress warnings related to intentional monkey patching"
    # We run Pyright in the virtual environment because pyright executes
    # "python" to determine the Python version.
-    pyenv.cmd npx --no-install pyright -p pyrightconfig-ci.json \
+    pyenv.cmd npx --no-install pyright -p pyrightconfig-ci.json |
-        | grep -E '\.py:[0-9]+:[0-9]+'\
+        grep -E '\.py:[0-9]+:[0-9]+' |
-        | grep -v '/engines/.*.py.* - warning: "logger" is not defined'\
+        grep -v '/engines/.*.py.* - warning: "logger" is not defined' |
-        | grep -v '/plugins/.*.py.* - error: "logger" is not defined'\
+        grep -v '/plugins/.*.py.* - error: "logger" is not defined' |
-        | grep -v '/engines/.*.py.* - warning: "supported_languages" is not defined' \
+        grep -v '/engines/.*.py.* - warning: "supported_languages" is not defined' |
-        | grep -v '/engines/.*.py.* - warning: "language_aliases" is not defined' \
+        grep -v '/engines/.*.py.* - warning: "language_aliases" is not defined' |
-        | grep -v '/engines/.*.py.* - warning: "categories" is not defined'
+        grep -v '/engines/.*.py.* - warning: "categories" is not defined'
    # ignore exit value from pyright
    # dump_return ${PIPESTATUS[0]}
    return 0
@ -121,7 +122,8 @@ test.unit() {
 test.coverage() {
    build_msg TEST 'unit test coverage'
-    (   set -e
+    (
        set -e
        pyenv.activate
        # shellcheck disable=SC2086
        python -m nose2 ${TEST_NOSE2_VERBOSE} -C --log-capture --with-coverage --coverage searx -s tests/unit
@ -142,7 +144,7 @@ test.rst() {
    build_msg TEST "[reST markup] ${RST_FILES[*]}"
    for rst in "${RST_FILES[@]}"; do
-        pyenv.cmd rst2html --halt error "$rst" > /dev/null || die 42 "fix issue in $rst"
+        pyenv.cmd rst2html --halt error "$rst" >/dev/null || die 42 "fix issue in $rst"
    done
 }
--- a/utils/lib_sxng_themes.sh
+++ b/utils/lib_sxng_themes.sh
@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # SPDX-License-Identifier: AGPL-3.0-or-later
-themes.help(){
+themes.help() {
    cat <<EOF
 themes.:
  all       : test & build all themes
@ -13,14 +13,16 @@ EOF
 }
 themes.all() {
-    (   set -e
+    (
        set -e
        vite.simple.build
    )
    dump_return $?
 }
 themes.simple() {
-    (   set -e
+    (
        set -e
        build_msg SIMPLE "theme: run build (simple)"
        vite.simple.build
    )
@ -28,7 +30,8 @@ themes.simple() {
 }
 themes.fix() {
-    (   set -e
+    (
        set -e
        build_msg SIMPLE "theme: fix (all themes)"
        vite.simple.fix
    )
@ -36,7 +39,8 @@ themes.fix() {
 }
 themes.lint() {
-    (   set -e
+    (
        set -e
        build_msg SIMPLE "theme: lint (all themes)"
        vite.simple.lint
    )
@ -44,7 +48,8 @@ themes.lint() {
 }
 themes.test() {
-    (   set -e
+    (
        set -e
        # we run a build to test (in CI)
        build_msg SIMPLE "theme: run build (to test)"
        vite.simple.build
--- a/utils/lib_sxng_vite.sh
+++ b/utils/lib_sxng_vite.sh
@ -4,7 +4,7 @@
 declare _Blue
 declare _creset
-vite.help(){
+vite.help() {
    cat <<EOF
 vite.:  .. to be done ..
  simple.:
@ -30,7 +30,8 @@ VITE_SIMPLE_THEME="${REPO_ROOT}/client/simple"
 # }
 vite.simple.build() {
-    (   set -e
+    (
        set -e
        templates.simple.pygments
        node.env
@ -39,19 +40,21 @@ vite.simple.build() {
        pushd "${VITE_SIMPLE_THEME}"
        npm install
        npm run build
-        popd &> /dev/null
+        popd &>/dev/null
    )
 }
 vite.simple.fix() {
-    (   set -e
+    (
        set -e
        node.env
        npm --prefix client/simple run fix
    )
 }
 vite.simple.lint() {
-    (   set -e
+    (
        set -e
        node.env
        npm --prefix client/simple run lint
    )
@ -59,8 +62,8 @@ vite.simple.lint() {
 templates.simple.pygments() {
    build_msg PYGMENTS "searxng_extra/update/update_pygments.py"
-    pyenv.cmd python searxng_extra/update/update_pygments.py \
+    pyenv.cmd python searxng_extra/update/update_pygments.py |
-        | prefix_stdout "${_Blue}PYGMENTS ${_creset} "
+        prefix_stdout "${_Blue}PYGMENTS ${_creset} "
    if [ "${PIPESTATUS[0]}" -ne "0" ]; then
        build_msg PYGMENTS "building LESS files for pygments failed"
        return 1
--- a/utils/lib_sxng_weblate.sh
+++ b/utils/lib_sxng_weblate.sh
@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # SPDX-License-Identifier: AGPL-3.0-or-later
-weblate.help(){
+weblate.help() {
    cat <<EOF
 weblate.:
  push.translations: push translation changes from SearXNG to Weblate's counterpart
@ -19,8 +19,9 @@ weblate.translations.worktree() {
    #
    #     remote weblate https://translate.codeberg.org/git/searxng/searxng/
-    (   set -e
+    (
-        if ! git remote get-url weblate 2> /dev/null; then
+        set -e
        if ! git remote get-url weblate 2>/dev/null; then
            git remote add weblate https://translate.codeberg.org/git/searxng/searxng/
        fi
        if [ -d "${TRANSLATIONS_WORKTREE}" ]; then
@ -49,7 +50,8 @@ weblate.to.translations() {
    # 4. In translations worktree, merge changes of branch 'translations' from
    #    remote 'weblate' and push it on branch 'translations' of 'origin'
-    (   set -e
+    (
        set -e
        pyenv.activate
        if [ "$(wlc lock-status)" != "locked: True" ]; then
            die 1 "weblate must be locked, currently: $(wlc lock-status)"
@ -77,14 +79,18 @@ weblate.translations.commit() {
    # create a commit in the local branch (master)
    local existing_commit_hash commit_body commit_message exitcode
-    (   set -e
+    (
        set -e
        pyenv.activate
        # lock change on weblate
        wlc lock
        # get translations branch in git worktree (TRANSLATIONS_WORKTREE)
        weblate.translations.worktree
-        existing_commit_hash=$(cd "${TRANSLATIONS_WORKTREE}"; git log -n1  --pretty=format:'%h')
+        existing_commit_hash=$(
            cd "${TRANSLATIONS_WORKTREE}"
            git log -n1 --pretty=format:'%h'
        )
        # pull weblate commits
        weblate.to.translations
@ -101,7 +107,10 @@ weblate.translations.commit() {
        data.locales
        # git add/commit (no push)
-        commit_body=$(cd "${TRANSLATIONS_WORKTREE}"; git log --pretty=format:'%h - %as - %aN <%ae>' "${existing_commit_hash}..HEAD")
+        commit_body=$(
            cd "${TRANSLATIONS_WORKTREE}"
            git log --pretty=format:'%h - %as - %aN <%ae>' "${existing_commit_hash}..HEAD"
        )
        commit_message=$(echo -e "[l10n] update translations from Weblate\n\n${commit_body}")
        git add searx/translations
        git add searx/data/locales.json
@ -135,7 +144,8 @@ weblate.push.translations() {
    local messages_pot diff_messages_pot last_commit_hash last_commit_detail \
        exitcode
    messages_pot="${TRANSLATIONS_WORKTREE}/searx/translations/messages.pot"
-    (   set -e
+    (
        set -e
        pyenv.activate
        # get translations branch in git worktree (TRANSLATIONS_WORKTREE)
        weblate.translations.worktree
@ -147,8 +157,10 @@ weblate.push.translations() {
            "searx/"
        # stop if there is no meaningful change in the master branch
-        diff_messages_pot=$(cd "${TRANSLATIONS_WORKTREE}";\
+        diff_messages_pot=$(
-                            git diff -- "searx/translations/messages.pot")
+            cd "${TRANSLATIONS_WORKTREE}"
            git diff -- "searx/translations/messages.pot"
        )
        if ! echo "$diff_messages_pot" | grep -qE "[\+\-](msgid|msgstr)"; then
            build_msg BABEL 'no changes detected, exiting'
            return 42
--- a/utils/lib_valkey.sh
+++ b/utils/lib_valkey.sh
@ -5,10 +5,10 @@ valkey.distro.setup() {
    # shellcheck disable=SC2034
    case $DIST_ID in
-        ubuntu|debian)
+        ubuntu | debian)
            VALKEY_PACKAGES="valkey-server"
            ;;
-        arch|fedora|centos)
+        arch | fedora | centos)
            VALKEY_PACKAGES="valkey"
            ;;
        *)
@ -36,13 +36,13 @@ valkey.backports() {
    esac
 }
-valkey.install(){
+valkey.install() {
    info_msg "installing valkey ..."
    valkey.distro.setup
    case $DIST_ID in
-        debian|ubuntu)
+        debian | ubuntu)
-            apt-cache show "${VALKEY_PACKAGES}" &> /dev/null  || valkey.backports
+            apt-cache show "${VALKEY_PACKAGES}" &>/dev/null || valkey.backports
            pkg_install "${VALKEY_PACKAGES}"
            # do some fix ...
@ -54,7 +54,7 @@ valkey.install(){
            systemd_activate_service valkey-server
            ;;
-        arch|fedora|centos)
+        arch | fedora | centos)
            pkg_install "${VALKEY_PACKAGES}"
            systemd_activate_service valkey
            ;;
--- a/utils/lxc.sh
+++ b/utils/lxc.sh
@ -60,19 +60,17 @@ REMOTE_IMAGES=()
 CONTAINERS=()
 LOCAL_IMAGES=()
-for ((i=0; i<${#LXC_SUITE[@]}; i+=2)); do
+for ((i = 0; i < ${#LXC_SUITE[@]}; i += 2)); do
    REMOTE_IMAGES=("${REMOTE_IMAGES[@]}" "${LXC_SUITE[i]}")
-    CONTAINERS=("${CONTAINERS[@]}" "${LXC_HOST_PREFIX}-${LXC_SUITE[i+1]}")
+    CONTAINERS=("${CONTAINERS[@]}" "${LXC_HOST_PREFIX}-${LXC_SUITE[i + 1]}")
-    LOCAL_IMAGES=("${LOCAL_IMAGES[@]}" "${LXC_SUITE[i+1]}")
+    LOCAL_IMAGES=("${LOCAL_IMAGES[@]}" "${LXC_SUITE[i + 1]}")
 done
 HOST_USER="${SUDO_USER:-$USER}"
 HOST_USER_ID=$(id -u "${HOST_USER}")
 HOST_GROUP_ID=$(id -g "${HOST_USER}")
 # ----------------------------------------------------------------------------
 usage() {
 # ----------------------------------------------------------------------------
    _cmd="$(basename "$0")"
    cat <<EOF
 usage::
@ -138,7 +136,7 @@ main() {
    lxc_distro_setup
    # don't check prerequisite when in recursion
-    if [[ ! $1 == __* ]] && [[ ! $1 == --help  ]]; then
+    if [[ $1 != __* ]] && [[ $1 != --help ]]; then
        if ! in_container; then
            ! required_commands lxc && lxd_info && exit 42
        fi
@ -146,27 +144,40 @@ main() {
    fi
    case $1 in
-        --getenv)  var="$2"; echo "${!var}"; exit 0;;
+        --getenv)
-        -h|--help) usage; exit 0;;
+            var="$2"
            echo "${!var}"
            exit 0
            ;;
        -h | --help)
            usage
            exit 0
            ;;
        build)
            sudo_or_exit
            case $2 in
                ${LXC_HOST_PREFIX}-*) build_container "$2" ;;
-                ''|--|containers) build_all_containers ;;
+                '' | -- | containers) build_all_containers ;;
-                *) usage "$_usage"; exit 42;;
+                *)
                    usage "$_usage"
                    exit 42
                    ;;
            esac
            ;;
        copy)
            case $2 in
-                ''|images) lxc_copy_images_locally;;
+                '' | images) lxc_copy_images_locally ;;
-                *) usage "$_usage"; exit 42;;
+                *)
                    usage "$_usage"
                    exit 42
                    ;;
            esac
            ;;
        remove)
            sudo_or_exit
            case $2 in
-                ''|--|containers) remove_containers ;;
+                '' | -- | containers) remove_containers ;;
                images) lxc_delete_images_locally ;;
                ${LXC_HOST_PREFIX}-*)
                    ! lxc_exists "$2" && warn_msg "container not yet exists: $2" && exit 0
@ -174,19 +185,25 @@ main() {
                        lxc_delete_container "$2"
                    fi
                    ;;
-                *) usage "unknown or missing container <name> $2"; exit 42;;
+                *)
                    usage "unknown or missing container <name> $2"
                    exit 42
                    ;;
            esac
            ;;
-        start|stop)
+        start | stop)
            sudo_or_exit
            case $2 in
-                ''|--|containers)  lxc_cmd "$1" ;;
+                '' | -- | containers) lxc_cmd "$1" ;;
                ${LXC_HOST_PREFIX}-*)
                    ! lxc_exists "$2" && usage_containers "unknown container: $2" && exit 42
                    info_msg "lxc $1 $2"
                    lxc "$1" "$2" | prefix_stdout "[${_BBlue}${i}${_creset}] "
                    ;;
-                *) usage "unknown or missing container <name> $2"; exit 42;;
+                *)
                    usage "unknown or missing container <name> $2"
                    exit 42
                    ;;
            esac
            ;;
        show)
@ -195,10 +212,10 @@ main() {
                suite)
                    case $3 in
                        ${LXC_HOST_PREFIX}-*)
-                            lxc exec -t "$3" -- "${LXC_REPO_ROOT}/utils/lxc.sh" __show suite \
+                            lxc exec -t "$3" -- "${LXC_REPO_ROOT}/utils/lxc.sh" __show suite |
-                                | prefix_stdout "[${_BBlue}$3${_creset}]  "
+                                prefix_stdout "[${_BBlue}$3${_creset}]  "
                            ;;
-                        *) show_suite;;
+                        *) show_suite ;;
                    esac
                    ;;
                images) show_images ;;
@ -230,7 +247,10 @@ main() {
                            ;;
                    esac
                    ;;
-                *) usage "$_usage"; exit 42;;
+                *)
                    usage "$_usage"
                    exit 42
                    ;;
            esac
            ;;
        __show)
@ -243,30 +263,36 @@ main() {
            sudo_or_exit
            shift
            case $1 in
-                --) shift; lxc_exec "$@" ;;
+                --)
                    shift
                    lxc_exec "$@"
                    ;;
                ${LXC_HOST_PREFIX}-*)
                    ! lxc_exists "$1" && usage_containers "unknown container: $1" && exit 42
                    local name=$1
                    shift
                    lxc_exec_cmd "${name}" "$@"
                    ;;
-                *) usage_containers "unknown container: $1" && exit 42
+                *) usage_containers "unknown container: $1" && exit 42 ;;
            esac
            ;;
        install)
            sudo_or_exit
            case $2 in
-                suite|base)
+                suite | base)
                    case $3 in
                        ${LXC_HOST_PREFIX}-*)
                            ! lxc_exists "$3" && usage_containers "unknown container: $3" && exit 42
                            lxc_exec_cmd "$3" "${LXC_REPO_ROOT}/utils/lxc.sh" __install "$2"
                            ;;
-                        ''|--) lxc_exec "${LXC_REPO_ROOT}/utils/lxc.sh" __install "$2" ;;
+                        '' | --) lxc_exec "${LXC_REPO_ROOT}/utils/lxc.sh" __install "$2" ;;
-                        *) usage_containers "unknown container: $3" && exit 42
+                        *) usage_containers "unknown container: $3" && exit 42 ;;
                    esac
                    ;;
-                *) usage "$_usage"; exit 42 ;;
+                *)
                    usage "$_usage"
                    exit 42
                    ;;
            esac
            ;;
        __install)
@ -281,12 +307,17 @@ main() {
            echo
            echo ".. generic utils/lxc.sh documentation"
            ;;
-        -*) usage "unknown option $1"; exit 42;;
+        -*)
-        *)  usage "unknown or missing command $1"; exit 42;;
+            usage "unknown option $1"
            exit 42
            ;;
        *)
            usage "unknown or missing command $1"
            exit 42
            ;;
    esac
 }
 build_all_containers() {
    rst_title "Build all LXC containers of suite"
    echo
@ -310,11 +341,11 @@ build_container() {
    local image
    local boilerplate_script
-    for ((i=0; i<${#LXC_SUITE[@]}; i+=2)); do
+    for ((i = 0; i < ${#LXC_SUITE[@]}; i += 2)); do
-        if [ "${LXC_HOST_PREFIX}-${LXC_SUITE[i+1]}" = "$1" ]; then
+        if [ "${LXC_HOST_PREFIX}-${LXC_SUITE[i + 1]}" = "$1" ]; then
            remote_image="${LXC_SUITE[i]}"
-            container="${LXC_HOST_PREFIX}-${LXC_SUITE[i+1]}"
+            container="${LXC_HOST_PREFIX}-${LXC_SUITE[i + 1]}"
-            image="${LXC_SUITE[i+1]}"
+            image="${LXC_SUITE[i + 1]}"
            boilerplate_script="${image}_boilerplate"
            boilerplate_script="${!boilerplate_script}"
            break
@ -335,8 +366,8 @@ build_container() {
    lxc_install_boilerplate "${container}" "$boilerplate_script"
    echo
    rst_title "install LXC base packages" section
-    lxc_exec_cmd "${container}" "${LXC_REPO_ROOT}/utils/lxc.sh" __install base \
+    lxc_exec_cmd "${container}" "${LXC_REPO_ROOT}/utils/lxc.sh" __install base |
-        | prefix_stdout "[${_BBlue}${container}${_creset}] "
+        prefix_stdout "[${_BBlue}${container}${_creset}] "
    echo
    lxc list "$container"
 }
@ -348,7 +379,7 @@ remove_containers() {
    lxc list "$LXC_HOST_PREFIX-"
    echo -en "\\n${_BRed}LXC containers to delete::${_creset}\\n\\n  ${CONTAINERS[*]}\\n" | $FMT
    local default=Ny
-    [[ $FORCE_TIMEOUT = 0 ]] && default=Yn
+    [[ $FORCE_TIMEOUT == 0 ]] && default=Yn
    if ask_yn "Do you really want to delete these containers" $default; then
        for i in "${CONTAINERS[@]}"; do
            lxc_delete_container "$i"
@ -363,8 +394,8 @@ remove_containers() {
 lxc_copy_images_locally() {
    rst_title "copy images" section
-    for ((i=0; i<${#LXC_SUITE[@]}; i+=2)); do
+    for ((i = 0; i < ${#LXC_SUITE[@]}; i += 2)); do
-        lxc_image_copy "${LXC_SUITE[i]}" "${LXC_SUITE[i+1]}"
+        lxc_image_copy "${LXC_SUITE[i]}" "${LXC_SUITE[i + 1]}"
    done
    # lxc image list local: && wait_key
 }
@ -391,7 +422,7 @@ lxc_delete_images_locally() {
    lxc image list local:
 }
-show_images(){
+show_images() {
    rst_title "local images"
    echo
    lxc image list local:
@ -408,11 +439,10 @@ show_images(){
 }
 # container
 # ---------
-show_suite(){
+show_suite() {
    rst_title "LXC suite ($LXC_HOST_PREFIX-*)"
    echo
    lxc list "$LXC_HOST_PREFIX-"
@ -421,8 +451,8 @@ show_suite(){
        if ! lxc_exists "$i"; then
            warn_msg "container ${_BBlue}$i${_creset} does not yet exists"
        else
-            lxc exec -t "${i}" -- "${LXC_REPO_ROOT}/utils/lxc.sh" __show suite \
+            lxc exec -t "${i}" -- "${LXC_REPO_ROOT}/utils/lxc.sh" __show suite |
-                | prefix_stdout "[${_BBlue}${i}${_creset}]  "
+                prefix_stdout "[${_BBlue}${i}${_creset}]  "
            echo
        fi
    done
@ -469,8 +499,8 @@ lxc_init_all_containers() {
    local image_name
    local container_name
-    for ((i=0; i<${#LXC_SUITE[@]}; i+=2)); do
+    for ((i = 0; i < ${#LXC_SUITE[@]}; i += 2)); do
-        lxc_init_container "${LXC_SUITE[i+1]}" "${LXC_HOST_PREFIX}-${LXC_SUITE[i+1]}"
+        lxc_init_container "${LXC_SUITE[i + 1]}" "${LXC_HOST_PREFIX}-${LXC_SUITE[i + 1]}"
    done
 }
@ -487,8 +517,8 @@ lxc_config_container() {
    info_msg "[${_BBlue}$1${_creset}] map uid/gid from host to container"
    # https://lxd.readthedocs.io/en/latest/userns-idmap/#custom-idmaps
-    echo -e -n "uid $HOST_USER_ID 0\\ngid $HOST_GROUP_ID 0"\
+    echo -e -n "uid $HOST_USER_ID 0\\ngid $HOST_GROUP_ID 0" |
-        | lxc config set "$1" raw.idmap -
+        lxc config set "$1" raw.idmap -
    info_msg "[${_BBlue}$1${_creset}] share ${REPO_ROOT} (repo_share) from HOST into container"
    # https://lxd.readthedocs.io/en/latest/instances/#type-disk
@ -504,15 +534,15 @@ lxc_boilerplate_all_containers() {
    local boilerplate_script
    local image_name
-    for ((i=0; i<${#LXC_SUITE[@]}; i+=2)); do
+    for ((i = 0; i < ${#LXC_SUITE[@]}; i += 2)); do
-        image_name="${LXC_SUITE[i+1]}"
+        image_name="${LXC_SUITE[i + 1]}"
        boilerplate_script="${image_name}_boilerplate"
        boilerplate_script="${!boilerplate_script}"
        lxc_install_boilerplate "${LXC_HOST_PREFIX}-${image_name}" "$boilerplate_script"
-        if [[ -z "${boilerplate_script}" ]]; then
+        if [[ -z ${boilerplate_script} ]]; then
            err_msg "[${_BBlue}${container_name}${_creset}] no boilerplate for image '${image_name}'"
        fi
    done
@ -546,10 +576,10 @@ EOF
    if lxc start -q "${container_name}" &>/dev/null; then
        sleep 5 # guest needs some time to come up and get an IP
    fi
-    if [[ -n "${boilerplate_script}" ]]; then
+    if [[ -n ${boilerplate_script} ]]; then
-        echo "${boilerplate_script}" \
+        echo "${boilerplate_script}" |
-            | lxc exec "${container_name}" -- bash \
+            lxc exec "${container_name}" -- bash |
-            | prefix_stdout "[${_BBlue}${container_name}${_creset}] "
+            prefix_stdout "[${_BBlue}${container_name}${_creset}] "
    fi
 }
@ -568,6 +598,4 @@ check_connectivity() {
    return $ret_val
 }
 # ----------------------------------------------------------------------------
 main "$@"
 # ----------------------------------------------------------------------------
--- a/utils/searxng.sh
+++ b/utils/searxng.sh
@ -46,7 +46,7 @@ if in_container; then
    SEARXNG_URL="http://$(primary_ip)/searxng"
 fi
 SEARXNG_URL_PATH="$(echo "${SEARXNG_URL}" | sed -e 's,^.*://[^/]*\(/.*\),\1,g')"
-[[ "${SEARXNG_URL_PATH}" == "${SEARXNG_URL}" ]] && SEARXNG_URL_PATH=/
+[[ ${SEARXNG_URL_PATH} == "${SEARXNG_URL}" ]] && SEARXNG_URL_PATH=/
 # Apache settings
@ -98,7 +98,7 @@ case $DIST_ID-$DIST_VERS in
        SEARXNG_BUILD_PACKAGES="${SEARXNG_BUILD_PACKAGES_debian}"
        APACHE_PACKAGES="$APACHE_PACKAGES libapache2-mod-proxy-uwsgi"
        ;;
-    ubuntu-*|debian-*)
+    ubuntu-* | debian-*)
        SEARXNG_PACKAGES="${SEARXNG_PACKAGES_debian} python-is-python3"
        SEARXNG_BUILD_PACKAGES="${SEARXNG_BUILD_PACKAGES_debian}"
        ;;
@ -114,9 +114,7 @@ esac
 _service_prefix="  ${_Yellow}|${SERVICE_USER}|${_creset} "
 # ----------------------------------------------------------------------------
 usage() {
 # ----------------------------------------------------------------------------
    # shellcheck disable=SC1117
    cat <<EOF
@ -170,52 +168,68 @@ EOF
 main() {
    case $1 in
-        install|remove|instance)
+        install | remove | instance)
            nginx_distro_setup
            apache_distro_setup
            uWSGI_distro_setup
            required_commands \
-                sudo systemctl install git wget curl \
+                sudo systemctl install git wget curl ||
-                || exit
+                exit
            ;;
    esac
    local _usage="unknown or missing $1 command $2"
    case $1 in
-        --getenv)  var="$2"; echo "${!var}"; exit 0;;
+        --getenv)
-        --cmd)  shift; "$@";;
+            var="$2"
-        -h|--help) usage; exit 0;;
+            echo "${!var}"
            exit 0
            ;;
        --cmd)
            shift
            "$@"
            ;;
        -h | --help)
            usage
            exit 0
            ;;
        install)
            sudo_or_exit
            case $2 in
-                all) searxng.install.all;;
+                all) searxng.install.all ;;
-                user) searxng.install.user;;
+                user) searxng.install.user ;;
-                pyenv) searxng.install.pyenv;;
+                pyenv) searxng.install.pyenv ;;
-                searxng-src) searxng.install.clone;;
+                searxng-src) searxng.install.clone ;;
-                settings) searxng.install.settings;;
+                settings) searxng.install.settings ;;
-                uwsgi) searxng.install.uwsgi;;
+                uwsgi) searxng.install.uwsgi ;;
-                packages) searxng.install.packages;;
+                packages) searxng.install.packages ;;
-                buildhost) searxng.install.buildhost;;
+                buildhost) searxng.install.buildhost ;;
-                nginx) searxng.nginx.install;;
+                nginx) searxng.nginx.install ;;
-                apache) searxng.apache.install;;
+                apache) searxng.apache.install ;;
-                valkey) searxng.install.valkey;;
+                valkey) searxng.install.valkey ;;
-                *) usage "$_usage"; exit 42;;
+                *)
                    usage "$_usage"
                    exit 42
                    ;;
            esac
            ;;
        remove)
            sudo_or_exit
            case $2 in
-                all) searxng.remove.all;;
+                all) searxng.remove.all ;;
-                user) drop_service_account "${SERVICE_USER}";;
+                user) drop_service_account "${SERVICE_USER}" ;;
-                pyenv) searxng.remove.pyenv;;
+                pyenv) searxng.remove.pyenv ;;
-                settings) searxng.remove.settings;;
+                settings) searxng.remove.settings ;;
-                uwsgi) searxng.remove.uwsgi;;
+                uwsgi) searxng.remove.uwsgi ;;
-                apache) searxng.apache.remove;;
+                apache) searxng.apache.remove ;;
-                remove) searxng.nginx.remove;;
+                remove) searxng.nginx.remove ;;
-                valkey) searxng.remove.valkey;;
+                valkey) searxng.remove.valkey ;;
-                redis) searxng.remove.redis;;
+                redis) searxng.remove.redis ;;
-                *) usage "$_usage"; exit 42;;
+                *)
                    usage "$_usage"
                    exit 42
                    ;;
            esac
            ;;
        instance)
@ -234,19 +248,30 @@ main() {
                    ;;
                cmd)
                    sudo_or_exit
-                    shift; shift; searxng.instance.exec "$@"
+                    shift
                    shift
                    searxng.instance.exec "$@"
                    ;;
                get_setting)
-                    shift; shift; searxng.instance.get_setting "$@"
+                    shift
                    shift
                    searxng.instance.get_setting "$@"
                    ;;
                call)
                    # call a function in instance's environment
-                    shift; shift; searxng.instance.self.call "$@"
+                    shift
                    shift
                    searxng.instance.self.call "$@"
                    ;;
                _call)
-                    shift; shift; "$@"
+                    shift
                    shift
                    "$@"
                    ;;
                *)
                    usage "$_usage"
                    exit 42
                    ;;
                *) usage "$_usage"; exit 42;;
            esac
            ;;
        *)
@ -314,7 +339,7 @@ In your instance, valkey DB connector is configured at:
        fi
    fi
-    if ! [[ ${valkey_url} = valkey://localhost:6379/* ]]; then
+    if ! [[ ${valkey_url} == valkey://localhost:6379/* ]]; then
        err_msg "SearXNG instance can't connect valkey DB / check valkey & your settings"
        return
    fi
@ -352,7 +377,7 @@ searxng.remove.all() {
    fi
    valkey_url=$(searxng.instance.get_setting valkey.url)
-    if ! [[ ${valkey_url} = unix://${VALKEY_HOME}/run/valkey.sock* ]]; then
+    if ! [[ ${valkey_url} == unix://${VALKEY_HOME}/run/valkey.sock* ]]; then
        searxng.remove.valkey
    fi
@ -369,7 +394,7 @@ searxng.remove.all() {
 searxng.install.user() {
    rst_title "SearXNG -- install user" section
    echo
-    if getent passwd "${SERVICE_USER}"  > /dev/null; then
+    if getent passwd "${SERVICE_USER}" >/dev/null; then
        echo "user already exists"
        return 0
    fi
@ -399,11 +424,11 @@ searxng.install.clone() {
        die 42 "To clone SearXNG, first install user ${SERVICE_USER}."
    fi
    echo
-    if ! sudo -i -u "${SERVICE_USER}" ls -d "$REPO_ROOT" > /dev/null; then
+    if ! sudo -i -u "${SERVICE_USER}" ls -d "$REPO_ROOT" >/dev/null; then
        die 42 "user '${SERVICE_USER}' missed read permission: $REPO_ROOT"
    fi
    # SERVICE_HOME="$(sudo -i -u "${SERVICE_USER}" echo \$HOME 2>/dev/null)"
-    if [[ ! "${SERVICE_HOME}" ]]; then
+    if [[ ! ${SERVICE_HOME} ]]; then
        err_msg "to clone SearXNG sources, user ${SERVICE_USER} hast to be created first"
        return 42
    fi
@ -412,7 +437,7 @@ searxng.install.clone() {
        info_msg "create local branch ${GIT_BRANCH} from start point: origin/${GIT_BRANCH}"
        git branch "${GIT_BRANCH}" "origin/${GIT_BRANCH}"
    fi
-    if [[ ! $(git rev-parse --abbrev-ref HEAD) == "${GIT_BRANCH}" ]]; then
+    if [[ $(git rev-parse --abbrev-ref HEAD) != "${GIT_BRANCH}" ]]; then
        warn_msg "take into account, installing branch $GIT_BRANCH while current branch is $(git rev-parse --abbrev-ref HEAD)"
    fi
    # export SERVICE_HOME
@ -424,7 +449,7 @@ searxng.install.clone() {
        "$GIT_BRANCH" "${SERVICE_USER}"
    git config --system --add safe.directory "${SEARXNG_SRC}"
-    pushd "${SEARXNG_SRC}" > /dev/null
+    pushd "${SEARXNG_SRC}" >/dev/null
    tee_stderr 0.1 <<EOF | sudo -H -u "${SERVICE_USER}" -i 2>&1 | prefix_stdout "$_service_prefix"
 cd "${SEARXNG_SRC}"
 git remote set-url origin ${GIT_URL}
@ -432,7 +457,7 @@ git config user.email "${ADMIN_EMAIL}"
 git config user.name "${ADMIN_NAME}"
 git config --list
 EOF
-    popd > /dev/null
+    popd >/dev/null
 }
 searxng.install.link_src() {
@ -588,9 +613,9 @@ searxng.install.uwsgi.socket() {
 searxng.uwsgi.available() {
    if [[ ${SEARXNG_UWSGI_USE_SOCKET} == true ]]; then
-        [[ -S "${SEARXNG_UWSGI_SOCKET}" ]]
+        [[ -S ${SEARXNG_UWSGI_SOCKET} ]]
        exit_val=$?
-        if [[ $exit_val = 0 ]]; then
+        if [[ $exit_val == 0 ]]; then
            info_msg "uWSGI socket is located at: ${SEARXNG_UWSGI_SOCKET}"
        fi
    else
@ -617,10 +642,9 @@ searxng.install.valkey() {
    valkey.install
 }
 searxng.instance.localtest() {
    rst_title "Test SearXNG instance locally" section
-    rst_para "Activate debug mode, start a minimal SearXNG "\
+    rst_para "Activate debug mode, start a minimal SearXNG " \
        "service and debug a HTTP request/response cycle."
    if service_is_available "http://${SEARXNG_INTERNAL_HTTP}" &>/dev/null; then
@ -714,7 +738,7 @@ This installs SearXNG's uWSGI app as Nginx site.  The Nginx site is located at:
 ${NGINX_APPS_AVAILABLE}/${NGINX_SEARXNG_SITE} and requires a uWSGI."
    searxng.install.http.pre
-    if ! nginx_is_installed ; then
+    if ! nginx_is_installed; then
        err_msg "Nginx packages are not installed"
        if ! ask_yn "Do you really want to continue and install Nginx packages?" Yn; then
            return
@ -805,7 +829,7 @@ searxng.instance.inspect() {
    echo
    case $DIST_ID-$DIST_VERS in
-        ubuntu-*|debian-*)
+        ubuntu-* | debian-*)
            # For uWSGI debian uses the LSB init process; for each configuration
            # file new uWSGI daemon instance is started with additional option.
            service uwsgi status "${SERVICE_NAME}"
@ -825,7 +849,7 @@ searxng.instance.inspect() {
    while true; do
        trap break 2
        case $DIST_ID-$DIST_VERS in
-            ubuntu-*|debian-*) tail -f "/var/log/uwsgi/app/${SERVICE_NAME%.*}.log" ;;
+            ubuntu-* | debian-*) tail -f "/var/log/uwsgi/app/${SERVICE_NAME%.*}.log" ;;
            arch-*) journalctl -f -u "uwsgi@${SERVICE_NAME%.*}" ;;
            fedora-*) journalctl -f -u uwsgi ;;
        esac
@ -882,7 +906,7 @@ searxng.doc.rst() {
        uwsgi_variant=':socket'
    fi
-    eval "echo \"$(< "${REPO_ROOT}/docs/build-templates/searxng.rst")\""
+    eval "echo \"$(<"${REPO_ROOT}/docs/build-templates/searxng.rst")\""
    # I use ubuntu-20.04 here to demonstrate that versions are also supported,
    # normally debian-* and ubuntu-* are most the same.
@ -897,7 +921,8 @@ searxng.doc.rst() {
            echo -e "\n.. START searxng uwsgi-description $DIST_NAME"
            case $DIST_ID-$DIST_VERS in
-                ubuntu-*|debian-*)  cat <<EOF
+                ubuntu-* | debian-*)
                    cat <<EOF
 .. code:: bash
@ -914,7 +939,8 @@ searxng.doc.rst() {
 EOF
                    ;;
-                arch-*) cat <<EOF
+                arch-*)
                    cat <<EOF
 .. code:: bash
@ -932,7 +958,8 @@ EOF
 EOF
                    ;;
-                fedora-*|centos-7) cat <<EOF
+                fedora-* | centos-7)
                    cat <<EOF
 .. code:: bash
@ -954,37 +981,35 @@ EOF
            echo -e "\n.. START searxng uwsgi-appini $DIST_NAME"
            echo ".. code:: bash"
            echo
-            eval "echo \"$(< "${TEMPLATES}/${uWSGI_APPS_AVAILABLE}/${SEARXNG_UWSGI_APP}${uwsgi_variant}")\"" | prefix_stdout "  "
+            eval "echo \"$(<"${TEMPLATES}/${uWSGI_APPS_AVAILABLE}/${SEARXNG_UWSGI_APP}${uwsgi_variant}")\"" | prefix_stdout "  "
            echo -e "\n.. END searxng uwsgi-appini $DIST_NAME"
            echo -e "\n.. START nginx socket"
            echo ".. code:: nginx"
            echo
-            eval "echo \"$(< "${TEMPLATES}/${NGINX_APPS_AVAILABLE}/${NGINX_SEARXNG_SITE}:socket")\"" | prefix_stdout "  "
+            eval "echo \"$(<"${TEMPLATES}/${NGINX_APPS_AVAILABLE}/${NGINX_SEARXNG_SITE}:socket")\"" | prefix_stdout "  "
            echo -e "\n.. END nginx socket"
            echo -e "\n.. START nginx http"
            echo ".. code:: nginx"
            echo
-            eval "echo \"$(< "${TEMPLATES}/${NGINX_APPS_AVAILABLE}/${NGINX_SEARXNG_SITE}")\"" | prefix_stdout "  "
+            eval "echo \"$(<"${TEMPLATES}/${NGINX_APPS_AVAILABLE}/${NGINX_SEARXNG_SITE}")\"" | prefix_stdout "  "
            echo -e "\n.. END nginx http"
            echo -e "\n.. START apache socket"
            echo ".. code:: apache"
            echo
-            eval "echo \"$(< "${TEMPLATES}/${APACHE_SITES_AVAILABLE}/${APACHE_SEARXNG_SITE}:socket")\"" | prefix_stdout "  "
+            eval "echo \"$(<"${TEMPLATES}/${APACHE_SITES_AVAILABLE}/${APACHE_SEARXNG_SITE}:socket")\"" | prefix_stdout "  "
            echo -e "\n.. END apache socket"
            echo -e "\n.. START apache http"
            echo ".. code:: apache"
            echo
-            eval "echo \"$(< "${TEMPLATES}/${APACHE_SITES_AVAILABLE}/${APACHE_SEARXNG_SITE}")\"" | prefix_stdout "  "
+            eval "echo \"$(<"${TEMPLATES}/${APACHE_SITES_AVAILABLE}/${APACHE_SEARXNG_SITE}")\"" | prefix_stdout "  "
            echo -e "\n.. END apache http"
        )
    done
 }
 # ----------------------------------------------------------------------------
 main "$@"
 # ----------------------------------------------------------------------------