forked from zaclys/searxng
713 lines
17 KiB
Bash
Executable File
713 lines
17 KiB
Bash
Executable File
#!/usr/bin/env bash
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# -*- coding: utf-8; mode: sh indent-tabs-mode: nil -*-
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# SPDX-License-Identifier: AGPL-3.0-or-later
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# shellcheck disable=SC2059,SC1117
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ADMIN_NAME="${ADMIN_NAME:-$(git config user.name)}"
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ADMIN_NAME="${ADMIN_NAME:-$USER}"
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ADMIN_EMAIL="${ADMIN_EMAIL:-$(git config user.email)}"
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ADMIN_EMAIL="${ADMIN_EMAIL:-$USER@$(hostname)}"
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if [[ -z "${REPO_ROOT}" ]]; then
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REPO_ROOT=$(dirname "${BASH_SOURCE[0]}")
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while [ -h "${REPO_ROOT}" ] ; do
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REPO_ROOT=$(readlink "${REPO_ROOT}")
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done
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REPO_ROOT=$(cd "${REPO_ROOT}/.." && pwd -P )
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fi
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if [[ -z ${TEMPLATES} ]]; then
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TEMPLATES="${REPO_ROOT}/utils/templates"
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fi
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if [[ -z "$CACHE" ]]; then
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CACHE="${REPO_ROOT}/cache"
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fi
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if [[ -z "$SYSTEMD_UNITS" ]]; then
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SYSTEMD_UNITS="/lib/systemd/system"
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fi
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if [[ -z ${DIFF_CMD} ]]; then
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DIFF_CMD="diff -u"
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if command -v colordiff >/dev/null; then
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DIFF_CMD="colordiff -u"
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fi
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fi
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DOT_CONFIG="${DOT_CONFIG:-${REPO_ROOT}/.config}"
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source_dot_config() {
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if [[ ! -e "$DOT_CONFIG" ]]; then
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info_msg "installing $DOT_CONFIG"
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cp "$(dirname "${BASH_SOURCE[0]}")/dot_config" "$DOT_CONFIG"
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if [[ ! -z ${SUDO_USER} ]]; then
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chown "${SUDO_USER}:${SUDO_USER}" "$DOT_CONFIG"
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fi
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fi
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# shellcheck disable=SC1090
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source "${REPO_ROOT}/.config"
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}
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sudo_or_exit() {
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# usage: sudo_or_exit
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if [ ! "$(id -u)" -eq 0 ]; then
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err_msg "this command requires root (sudo) privilege!" >&2
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exit 42
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fi
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}
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required_commands() {
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# usage: requires_commands [cmd1 ...]
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local exit_val=0
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while [ ! -z "$1" ]; do
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if ! command -v "$1" &>/dev/null; then
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err_msg "missing command $1"
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exit_val=42
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fi
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shift
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done
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return $exit_val
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}
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rst_title() {
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# usage: rst_title <header-text> [part|chapter|section]
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case ${2-chapter} in
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part) printf "\n${1//?/=}\n$1\n${1//?/=}\n";;
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chapter) printf "\n${1}\n${1//?/=}\n";;
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section) printf "\n${1}\n${1//?/-}\n";;
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*)
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err_msg "invalid argument '${2}' in line $(caller)"
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return 42
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;;
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esac
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}
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if command -v fmt >/dev/null; then
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export FMT="fmt -u"
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else
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export FMT="cat"
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fi
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rst_para() {
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# usage: RST_INDENT=1 rst_para "lorem ipsum ..."
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local prefix=''
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if ! [[ -z $RST_INDENT ]] && [[ $RST_INDENT -gt 0 ]]; then
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prefix="$(for i in $(seq 1 "$RST_INDENT"); do printf " "; done)"
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echo -en "\n$*\n" | $FMT | prefix_stdout "$prefix"
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else
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echo -en "\n$*\n" | $FMT
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fi
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}
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err_msg() { echo -e "ERROR: $*" >&2; }
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warn_msg() { echo -e "WARN: $*" >&2; }
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info_msg() { echo -e "INFO: $*"; }
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clean_stdin() {
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if [[ $(uname -s) != 'Darwin' ]]; then
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while read -r -n1 -t 0.1; do : ; done
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fi
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}
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wait_key(){
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# usage: waitKEY [<timeout in sec>]
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clean_stdin
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local _t=$1
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local msg="${MSG:-** press any [KEY] to continue **}"
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[[ ! -z $FORCE_TIMEOUT ]] && _t=$FORCE_TIMEOUT
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[[ ! -z $_t ]] && _t="-t $_t"
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# shellcheck disable=SC2086
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read -r -s -n1 $_t -p "$msg"
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echo
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clean_stdin
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}
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ask_yn() {
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# usage: ask_yn <prompt-text> [Ny|Yn] [<timeout in sec>]
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local EXIT_YES=0 # exit status 0 --> successful
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local EXIT_NO=1 # exit status 1 --> error code
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local _t=$3
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[[ ! -z $FORCE_TIMEOUT ]] && _t=$FORCE_TIMEOUT
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[[ ! -z $_t ]] && _t="-t $_t"
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case "${2}" in
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Yn)
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local exit_val=${EXIT_YES}
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local choice="[YES/no]"
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local default="Yes"
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;;
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*)
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local exit_val=${EXIT_NO}
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local choice="[NO/yes]"
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local default="No"
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;;
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esac
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echo
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while true; do
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clean_stdin
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printf "$1 ${choice} "
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# shellcheck disable=SC2086
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read -r -n1 $_t
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if [[ -z $REPLY ]]; then
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printf "$default\n"; break
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elif [[ $REPLY =~ ^[Yy]$ ]]; then
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exit_val=${EXIT_YES}
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printf "\n"
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break
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elif [[ $REPLY =~ ^[Nn]$ ]]; then
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exit_val=${EXIT_NO}
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printf "\n"
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break
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fi
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_t=""
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err_msg "invalid choice"
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done
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clean_stdin
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return $exit_val
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}
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tee_stderr () {
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# usage::
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# tee_stderr 1 <<EOF | python -i
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# print("hello")
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# EOF
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# ...
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# >>> print("hello")
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# hello
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local _t="0";
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if [[ ! -z $1 ]] ; then _t="$1"; fi
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(while read -r line; do
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# shellcheck disable=SC2086
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sleep $_t
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echo -e "$line" >&2
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echo "$line"
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done)
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}
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prefix_stdout () {
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# usage: <cmd> | prefix_stdout [prefix]
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local prefix=" | "
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if [[ ! -z $1 ]] ; then prefix="$1"; fi
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# shellcheck disable=SC2162
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(while IFS= read line; do
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echo -e "${prefix}$line"
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done)
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}
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append_line() {
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# usage: append_line <line> <file>
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#
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# Append line if not exists, create file if not exists. E.g::
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#
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# append_line 'source ~/.foo' ~/bashrc
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local LINE=$1
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local FILE=$2
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grep -qFs -- "$LINE" "$FILE" || echo "$LINE" >> "$FILE"
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}
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cache_download() {
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# usage: cache_download <url> <local-filename>
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local exit_value=0
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if [[ ! -z ${SUDO_USER} ]]; then
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sudo -u "${SUDO_USER}" mkdir -p "${CACHE}"
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else
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mkdir -p "${CACHE}"
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fi
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if [[ -f "${CACHE}/$2" ]] ; then
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info_msg "already cached: $1"
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info_msg " --> ${CACHE}/$2"
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fi
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if [[ ! -f "${CACHE}/$2" ]]; then
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info_msg "caching: $1"
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info_msg " --> ${CACHE}/$2"
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if [[ ! -z ${SUDO_USER} ]]; then
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sudo -u "${SUDO_USER}" wget --progress=bar -O "${CACHE}/$2" "$1" ; exit_value=$?
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else
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wget --progress=bar -O "${CACHE}/$2" "$1" ; exit_value=$?
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fi
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if [[ $exit_value = 0 ]]; then
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err_msg "failed to download: $1"
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fi
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fi
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}
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choose_one() {
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# usage:
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#
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# DEFAULT_SELECT= 2 \
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# choose_one <name> "your selection?" "Coffee" "Coffee with milk"
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local default=${DEFAULT_SELECT-1}
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local REPLY
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local env_name=$1 && shift
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local choice=$1;
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local max="${#@}"
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local _t
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[[ ! -z $FORCE_TIMEOUT ]] && _t=$FORCE_TIMEOUT
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[[ ! -z $_t ]] && _t="-t $_t"
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list=("$@")
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echo -e "Menu::"
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for ((i=1; i<= $((max -1)); i++)); do
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if [[ "$i" == "$default" ]]; then
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echo -e " $i.) ${list[$i]} [default]"
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else
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echo -e " $i.) ${list[$i]}"
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fi
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done
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while true; do
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clean_stdin
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printf "$1 [$default] "
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if (( 10 > max )); then
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# shellcheck disable=SC2086
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read -r -n1 $_t
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else
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# shellcheck disable=SC2086,SC2229
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read -r $_t
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fi
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# selection fits
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[[ $REPLY =~ ^-?[0-9]+$ ]] && (( REPLY > 0 )) && (( REPLY < max )) && break
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# take default
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[[ -z $REPLY ]] && REPLY=$default && break
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_t=""
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err_msg "invalid choice"
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done
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eval "$env_name"='${list[${REPLY}]}'
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echo
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clean_stdin
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}
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install_template() {
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# usage:
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#
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# install_template [--no-eval] [--variant=<name>] \
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# {file} [{owner} [{group} [{chmod}]]]
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#
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# E.g. the origin of variant 'raw' of /etc/updatedb.conf is::
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#
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# ${TEMPLATES}/etc/updatedb.conf:raw
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#
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# To install variant 'raw' of /etc/updatedb.conf without evaluated
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# replacements you can use::
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#
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# install_template --variant=raw --no-eval \
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# /etc/updatedb.conf root root 644
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local _reply=""
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local do_eval=1
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local variant=""
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local pos_args=("$0")
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for i in "$@"; do
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case $i in
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--no-eval) do_eval=0; shift ;;
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--variant=*) variant=":${i#*=}"; shift ;;
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*) pos_args+=("$i") ;;
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esac
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done
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local dst="${pos_args[1]}"
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local template_origin="${TEMPLATES}${dst}${variant}"
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local template_file="${TEMPLATES}${dst}"
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local owner="${pos_args[2]-$(id -un)}"
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local group="${pos_args[3]-$(id -gn)}"
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local chmod="${pos_args[4]-644}"
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info_msg "install (eval=$do_eval): ${dst}"
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[[ ! -z $variant ]] && info_msg "variant: ${variant}"
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if [[ ! -f "${template_origin}" ]] ; then
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err_msg "${template_origin} does not exists"
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err_msg "... can't install $dst"
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wait_key 30
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return 42
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fi
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if [[ "$do_eval" == "1" ]]; then
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template_file="${CACHE}${dst}${variant}"
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info_msg "BUILD template ${template_file}"
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if [[ ! -z ${SUDO_USER} ]]; then
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sudo -u "${SUDO_USER}" mkdir -p "$(dirname "${template_file}")"
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else
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mkdir -p "$(dirname "${template_file}")"
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fi
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# shellcheck disable=SC2086
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eval "echo \"$(cat ${template_origin})\"" > "${template_file}"
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if [[ ! -z ${SUDO_USER} ]]; then
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chown "${SUDO_USER}:${SUDO_USER}" "${template_file}"
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fi
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else
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template_file=$template_origin
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fi
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mkdir -p "$(dirname "${dst}")"
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if [[ ! -f "${dst}" ]]; then
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info_msg "install: ${template_file}"
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sudo -H install -v -o "${owner}" -g "${group}" -m "${chmod}" \
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"${template_file}" "${dst}" | prefix_stdout
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return $?
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fi
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if [[ -f "${dst}" ]] && cmp --silent "${template_file}" "${dst}" ; then
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info_msg "file ${dst} allready installed"
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return 0
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fi
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info_msg "diffrent file ${dst} allready exists on this host"
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while true; do
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choose_one _reply "choose next step with file $dst" \
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"replace file" \
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"leave file unchanged" \
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"interactiv shell" \
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"diff files"
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case $_reply in
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"replace file")
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info_msg "install: ${template_file}"
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sudo -H install -v -o "${owner}" -g "${group}" -m "${chmod}" \
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"${template_file}" "${dst}" | prefix_stdout
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break
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;;
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"leave file unchanged")
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break
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;;
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"interactiv shell")
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echo "// edit ${dst} to your needs"
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echo "// exit with CTRL-D"
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sudo -H -u "${owner}" -i
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$DIFF_CMD "${dst}" "${template_file}"
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echo
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echo "did you edit file ..."
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printf " ${template_file}"
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if ask_yn "... to your needs?"; then
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break
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fi
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;;
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"diff files")
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$DIFF_CMD "${dst}" "${template_file}" | prefix_stdout
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esac
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done
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}
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service_is_available() {
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# usage: service_is_available <URL>
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local URL="$1"
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if [[ -z $URL ]]; then
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err_msg "service_is_available: missing arguments"
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return 42
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fi
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http_code=$(curl -H 'Cache-Control: no-cache' \
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--silent -o /dev/null --head --write-out '%{http_code}' --insecure \
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"${URL}")
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exit_val=$?
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if [[ $exit_val = 0 ]]; then
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info_msg "got $http_code from ${URL}"
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fi
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case "$http_code" in
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404|410|423) exit_val=$http_code;;
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esac
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return "$exit_val"
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}
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# Apache
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# ------
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# FIXME: Arch Linux & RHEL should be added
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if [[ -z "${APACHE_SITES_AVAILABE}" ]]; then
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APACHE_SITES_AVAILABE="/etc/apache2/sites-available"
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fi
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apache_is_installed() {
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(command -v apachectl \
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&& command -v a2ensite \
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&& command -v a2dissite ) &>/dev/null
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}
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apache_reload() {
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info_msg "reload apache .."
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echo
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sudo -H apachectl configtest
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sudo -H service apache2 force-reload
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}
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apache_install_site() {
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# usage: apache_install_site [<template option> ...] <mysite.conf>
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#
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# <template option>: see install_template
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local template_opts=()
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local pos_args=("$0")
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for i in "$@"; do
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case $i in
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-*) template_opts+=("$i");;
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*) pos_args+=("$i");;
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esac
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done
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install_template "${template_opts[@]}" \
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"${APACHE_SITES_AVAILABE}/${pos_args[1]}" \
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root root 644
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apache_enable_site "${pos_args[1]}"
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info_msg "installed apache site: ${pos_args[1]}"
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}
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apache_remove_site() {
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# usage: apache_remove_site <mysite.conf>
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info_msg "remove apache site: $1"
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apache_dissable_site "$1"
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rm -f "${APACHE_SITES_AVAILABE}/$1"
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}
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apache_enable_site() {
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# usage: apache_enable_site <mysite.conf>
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info_msg "enable apache site: $1"
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sudo -H a2ensite -q "$1"
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apache_reload
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}
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apache_dissable_site() {
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# usage: apache_disable_site <mysite.conf>
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info_msg "disable apache site: $1"
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sudo -H a2dissite -q "$1"
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apache_reload
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}
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# uWSGI
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# -----
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uWSGI_SETUP="${uWSGI_SETUP:=/etc/uwsgi}"
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uWSGI_restart() {
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# usage: uWSGI_restart()
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info_msg "restart uWSGI service"
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systemctl restart uwsgi
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}
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uWSGI_app_available() {
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# usage: uWSGI_app_available <myapp.ini>
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local CONF="$1"
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if [[ -z $CONF ]]; then
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err_msg "uWSGI_app_available: missing arguments"
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return 42
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fi
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[[ -f "${uWSGI_SETUP}/apps-available/${CONF}" ]]
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}
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uWSGI_install_app() {
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# usage: uWSGI_install_app [<template option> ...] <myapp.ini>
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#
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# <template option>: see install_template
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local pos_args=("$0")
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for i in "$@"; do
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case $i in
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-*) template_opts+=("$i");;
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*) pos_args+=("$i");;
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esac
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done
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install_template "${template_opts[@]}" \
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"${uWSGI_SETUP}/apps-available/${pos_args[1]}" \
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root root 644
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uWSGI_enable_app "${pos_args[1]}"
|
|
uWSGI_restart
|
|
info_msg "installed uWSGI app: ${pos_args[1]}"
|
|
}
|
|
|
|
uWSGI_remove_app() {
|
|
|
|
# usage: uWSGI_remove_app <myapp.ini>
|
|
|
|
local CONF="$1"
|
|
info_msg "remove uWSGI app: ${CONF}"
|
|
uWSGI_disable_app "${CONF}"
|
|
uWSGI_restart
|
|
rm -f "${uWSGI_SETUP}/apps-available/${CONF}"
|
|
}
|
|
|
|
uWSGI_app_enabled() {
|
|
# usage: uWSGI_app_enabled <myapp.ini>
|
|
local CONF="$1"
|
|
if [[ -z $CONF ]]; then
|
|
err_msg "uWSGI_app_enabled: missing arguments"
|
|
return 42
|
|
fi
|
|
[[ -f "${uWSGI_SETUP}/apps-enabled/${CONF}" ]]
|
|
}
|
|
|
|
# shellcheck disable=SC2164
|
|
uWSGI_enable_app() {
|
|
|
|
# usage: uWSGI_enable_app <myapp.ini>
|
|
|
|
local CONF="$1"
|
|
if [[ -z $CONF ]]; then
|
|
err_msg "uWSGI_enable_app: missing arguments"
|
|
return 42
|
|
fi
|
|
pushd "${uWSGI_SETUP}/apps-enabled" >/dev/null
|
|
rm -f "$CONF"
|
|
# shellcheck disable=SC2226
|
|
ln -s "../apps-available/${CONF}"
|
|
info_msg "enabled uWSGI app: ${CONF} (restart uWSGI required)"
|
|
popd >/dev/null
|
|
}
|
|
|
|
uWSGI_disable_app() {
|
|
|
|
# usage: uWSGI_disable_app <myapp.ini>
|
|
|
|
local CONF="$1"
|
|
if [[ -z $CONF ]]; then
|
|
err_msg "uWSGI_enable_app: missing arguments"
|
|
return 42
|
|
fi
|
|
rm -f "${uWSGI_SETUP}/apps-enabled/${CONF}"
|
|
# FIXME: restart uwsgi service won't stop wsgi forked processes of user searx.
|
|
# I had to kill them manually here ...
|
|
pkill -f "${uWSGI_SETUP}/apps-enabled/${CONF}" -9
|
|
info_msg "disabled uWSGI app: ${CONF} (restart uWSGI required)"
|
|
}
|
|
|
|
# distro's package manager
|
|
# ------------------------
|
|
#
|
|
# FIXME: Arch Linux & RHEL should be added
|
|
#
|
|
|
|
pkg_install() {
|
|
|
|
# usage: TITEL='install foobar' pkg_install foopkg barpkg
|
|
|
|
rst_title "${TITLE:-installation of packages}" section
|
|
echo -en "\npackage(s)::\n\n $*\n" | $FMT
|
|
|
|
if ! ask_yn "Should packages be installed?" Yn 30; then
|
|
return 42
|
|
fi
|
|
# shellcheck disable=SC2068
|
|
apt-get install -y $@
|
|
}
|
|
|
|
pkg_remove() {
|
|
|
|
# usage: TITEL='remove foobar' pkg_remove foopkg barpkg
|
|
|
|
rst_title "${TITLE:-remove packages}" section
|
|
echo -en "\npackage(s)::\n\n $*\n" | $FMT
|
|
|
|
if ! ask_yn "Should packages be removed (purge)?" Yn 30; then
|
|
return 42
|
|
fi
|
|
apt-get purge --autoremove --ignore-missing -y "$@"
|
|
}
|
|
|
|
pkg_is_installed() {
|
|
|
|
# usage: pkg_is_install foopkg || pkg_install foopkg
|
|
|
|
dpkg -l "$1" &> /dev/null
|
|
return $?
|
|
}
|
|
|
|
# git tooling
|
|
# -----------
|
|
|
|
# shellcheck disable=SC2164
|
|
git_clone() {
|
|
|
|
# usage:
|
|
#
|
|
# git_clone <url> <name> [<branch> [<user>]]
|
|
# git_clone <url> <path> [<branch> [<user>]]
|
|
#
|
|
# First form uses $CACHE/<name> as destination folder, second form clones
|
|
# into <path>. If repository is allready cloned, pull from <branch> and
|
|
# update working tree (if needed, the caller has to stash local changes).
|
|
#
|
|
# git clone https://github.com/asciimoo/searx searx-src origin/master searxlogin
|
|
#
|
|
|
|
local url="$1"
|
|
local dest="$2"
|
|
local branch="$3"
|
|
local user="$4"
|
|
local bash_cmd="bash"
|
|
local remote="origin"
|
|
|
|
if [[ ! "${dest:0:1}" = "/" ]]; then
|
|
dest="$CACHE/$dest"
|
|
fi
|
|
|
|
[[ -z $branch ]] && branch=master
|
|
[[ -z $user ]] && [[ ! -z "${SUDO_USER}" ]] && user="${SUDO_USER}"
|
|
[[ ! -z $user ]] && bash_cmd="sudo -H -u $user -i"
|
|
|
|
if [[ -d "${dest}" ]] ; then
|
|
info_msg "already cloned: $dest"
|
|
tee_stderr 0.1 <<EOF | $bash_cmd 2>&1 | prefix_stdout " |$user| "
|
|
cd "${dest}"
|
|
git checkout -m -B "$branch" --track "$remote/$branch"
|
|
git pull --all
|
|
EOF
|
|
else
|
|
info_msg "clone into: $dest"
|
|
tee_stderr 0.1 <<EOF | $bash_cmd 2>&1 | prefix_stdout " |$user| "
|
|
mkdir -p "$(dirname "$dest")"
|
|
cd "$(dirname "$dest")"
|
|
git clone --branch "$branch" --origin "$remote" "$url" "$(basename "$dest")"
|
|
EOF
|
|
fi
|
|
}
|