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#!/usr/bin/env bash
# SPDX-License-Identifier: AGPL-3.0-or-later
# https://github.com/koalaman/shellcheck/issues/356#issuecomment-853515285
# shellcheck source=utils/lib.sh
. /dev/null
# Initialize installation procedures:
#
# - Modified source_dot_config function that
# - loads .config.sh from an existing installation (at SEARXNG_SRC).
# - initialize **SEARX_SRC_INIT_FILES**
# - functions like:
# - install_log_searx_instance()
# - install_searx_get_state()
#
# usage:
# source lib_install.sh
#
# **Installation scripts**
#
# The utils/lib_install.sh is sourced by the installations scripts:
#
# - utils/searx.sh
# - utils/morty.sh
# - utils/filtron.sh
#
# If '${SEARXNG_SRC}/.config.sh' exists, the modified source_dot_config() function
# loads this configuration (instead of './.config.sh').
# **SEARX_SRC_INIT_FILES**
#
# Array of file names to sync into a installation at $SEARXNG_SRC. The file names
# are relative to the $REPO_ROOT. Set by function init_SEARXNG_SRC_INIT_FILES().
# Most often theses are files like:
# - .config.sh
# - searx/settings.yml
# - utils/brand.env
# - ...
SEARX_SRC_INIT_FILES=()
eval orig_"$(declare -f source_dot_config)"
source_dot_config() {
# Modified source_dot_config function that
# - loads .config.sh from an existing installation (at SEARXNG_SRC).
# - initialize SEARX_SRC_INIT_FILES
if [ -z "$eval_SEARXNG_SRC" ]; then
export eval_SEARXNG_SRC='true'
SEARXNG_SRC=$("${REPO_ROOT}/utils/searx.sh" --getenv SEARXNG_SRC)
SEARXNG_PYENV=$("${REPO_ROOT}/utils/searx.sh" --getenv SEARXNG_PYENV)
SEARXNG_SETTINGS_PATH=$("${REPO_ROOT}/utils/searx.sh" --getenv SEARXNG_SETTINGS_PATH)
if [ ! -r "${SEARXNG_SRC}" ]; then
info_msg "not yet cloned: ${SEARXNG_SRC}"
orig_source_dot_config
return 0
fi
info_msg "using instance at: ${SEARXNG_SRC}"
# set and log DOT_CONFIG
if [ -r "${SEARXNG_SRC}/.config.sh" ]; then
info_msg "switching to ${SEARXNG_SRC}/.config.sh"
DOT_CONFIG="${SEARXNG_SRC}/.config.sh"
else
info_msg "using local config: ${DOT_CONFIG}"
fi
init_SEARX_SRC_INIT_FILES
fi
}
init_SEARX_SRC_INIT_FILES(){
# init environment SEARX_SRC_INIT_FILES
# Monitor modified files in the working-tree from the local repository, only
# if the local file differs to the corresponding file in the instance. Most
# often theses are files like:
#
# - .config.sh
# - searx/settings.yml
# - utils/brand.env
# - ...
# keep list empty if there is no installation
SEARX_SRC_INIT_FILES=()
if [ ! -r "$SEARXNG_SRC" ]; then
return 0
fi
local fname
local msg=""
local _prefix=""
if [[ -n ${SUDO_USER} ]]; then
_prefix="sudo -u ${SUDO_USER}"
fi
# Monitor local modified files from the repository, only if the local file
# differs to the corresponding file in the instance
while IFS= read -r fname; do
if [ -z "$fname" ]; then
continue
fi
if [ -r "${SEARXNG_SRC}/${fname}" ]; then
# diff "${REPO_ROOT}/${fname}" "${SEARXNG_SRC}/${fname}"
if ! cmp --silent "${REPO_ROOT}/${fname}" "${SEARXNG_SRC}/${fname}"; then
SEARX_SRC_INIT_FILES+=("${fname}")
info_msg "local clone (workingtree), modified file: ./$fname"
msg="to update use: sudo -H ./utils/searx.sh install init-src"
fi
fi
done <<< "$($_prefix git diff --name-only)"
[ -n "$msg" ] && info_msg "$msg"
}
install_log_searx_instance() {
echo -e "---- SearXNG instance setup ${_BBlue}(status: $(install_searx_get_state))${_creset}"
echo -e " SEARXNG_SETTINGS_PATH : ${_BBlue}${SEARXNG_SETTINGS_PATH}${_creset}"
echo -e " SEARXNG_PYENV : ${_BBlue}${SEARXNG_PYENV}${_creset}"
echo -e " SEARXNG_SRC : ${_BBlue}${SEARXNG_SRC:-none}${_creset}"
echo -e " SEARXNG_URL : ${_BBlue}${SEARXNG_URL:-none}${_creset}"
if in_container; then
# SearXNG is listening on 127.0.0.1 and not available from outside container
# in containers the service is listening on 0.0.0.0 (see lxc-searxng.env)
echo -e "---- container setup"
echo -e " ${_BBlack}HINT:${_creset} SearXNG only listen on loopback device" \
"${_BBlack}inside${_creset} the container."
for ip in $(global_IPs) ; do
if [[ $ip =~ .*:.* ]]; then
echo " container (IPv6): [${ip#*|}]"
else
# IPv4:
echo " container (IPv4): ${ip#*|}"
fi
done
fi
}
install_searx_get_state(){
# usage: install_searx_get_state
#
# Prompts a string indicating the status of the installation procedure
#
# missing-searx-clone:
# There is no clone at ${SEARXNG_SRC}
# missing-searx-pyenv:
# There is no pyenv in ${SEARXNG_PYENV}
# installer-modified:
# There are files modified locally in the installer (clone),
# see ${SEARX_SRC_INIT_FILES} description.
# python-installed:
# Scripts can be executed in instance's environment
# - user: ${SERVICE_USER}
# - pyenv: ${SEARXNG_PYENV}
if [ -f /etc/searx/settings.yml ]; then
err_msg "settings.yml in /etc/searx/ is deprecated, move file to folder /etc/searxng/"
fi
if ! [ -r "${SEARXNG_SRC}" ]; then
echo "missing-searx-clone"
return
fi
if ! [ -f "${SEARXNG_PYENV}/bin/activate" ]; then
echo "missing-searx-pyenv"
return
fi
if ! [ -r "${SEARXNG_SETTINGS_PATH}" ]; then
echo "missing-settings"
return
fi
if ! [ ${#SEARX_SRC_INIT_FILES[*]} -eq 0 ]; then
echo "installer-modified"
return
fi
echo "python-installed"
}
# Initialization of the installation procedure
# --------------------------------------------
# shellcheck source=utils/brand.env
source "${REPO_ROOT}/utils/brand.env"
# SEARXNG_URL aka PUBLIC_URL: the public URL of the instance (e.g.
# "https://example.org/searx"). The value is taken from environment $SEARXNG_URL
# in ./utils/brand.env. This variable is a empty string if server.base_url in
# the settings.yml is set to 'false'.
SEARXNG_URL="${SEARXNG_URL:-http://$(uname -n)}"
if in_container; then
# hint: Linux containers do not have DNS entries, lets use IPs
SEARXNG_URL="http://$(primary_ip)"
fi
# shellcheck disable=SC2034
PUBLIC_URL="${SEARXNG_URL}"
source_dot_config
# shellcheck source=utils/lxc-searxng.env
source "${REPO_ROOT}/utils/lxc-searxng.env"
in_container && lxc_set_suite_env
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