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-rwxr-xr-xsystem/edit-config309
1 files changed, 309 insertions, 0 deletions
diff --git a/system/edit-config b/system/edit-config
new file mode 100755
index 00000000..754f9374
--- /dev/null
+++ b/system/edit-config
@@ -0,0 +1,309 @@
+#!/usr/bin/env sh
+
+# shellcheck disable=SC1091
+[ -f /etc/profile ] && . /etc/profile
+
+set -e
+
+script_dir="$(CDPATH="" cd -- "$(dirname -- "$0")" && pwd -P)"
+
+usage() {
+ check_directories
+ cat <<EOF
+USAGE:
+ ${0} [options] FILENAME
+
+ Copy and edit the stock config file named: FILENAME
+ if FILENAME is already copied, it will be edited as-is.
+
+ Stock config files at: '${NETDATA_STOCK_CONFIG_DIR}'
+ User config files at: '${NETDATA_USER_CONFIG_DIR}'
+
+ The editor to use can be specified either by setting the EDITOR
+ environment variable, or by using the --editor option.
+
+ The file to edit can also be specified using the --file option.
+
+ For a list of known config files, run '${0} --list'
+EOF
+ exit 0
+}
+
+error() {
+ echo >&2 "ERROR: ${1}"
+}
+
+abspath() {
+ if [ -d "${1}" ]; then
+ echo "$(cd "${1}" && /usr/bin/env PWD= pwd -P)/"
+ else
+ echo "$(cd "$(dirname "${1}")" && /usr/bin/env PWD= pwd -P)/$(basename "${1}")"
+ fi
+}
+
+is_prefix() {
+ echo "${2}" | grep -qE "^${1}"
+ return $?
+}
+
+check_directories() {
+ if [ -e "${script_dir}/.environment" ]; then
+ OLDPATH="${PATH}"
+ # shellcheck disable=SC1091
+ . "${script_dir}/.environment"
+ PATH="${OLDPATH}"
+ fi
+
+ if [ -n "${NETDATA_PREFIX}" ] && [ -d "${NETDATA_PREFIX}/usr/lib/netdata/conf.d" ]; then
+ stock_dir="${NETDATA_PREFIX}/usr/lib/netdata/conf.d"
+ elif [ -n "${NETDATA_PREFIX}" ] && [ -d "${NETDATA_PREFIX}/lib/netdata/conf.d" ]; then
+ stock_dir="${NETDATA_PREFIX}/lib/netdata/conf.d"
+ elif [ -d "${script_dir}/../../usr/lib/netdata/conf.d" ]; then
+ stock_dir="${script_dir}/../../usr/lib/netdata/conf.d"
+ elif [ -d "${script_dir}/../../lib/netdata/conf.d" ]; then
+ stock_dir="${script_dir}/../../lib/netdata/conf.d"
+ elif [ -d "/usr/lib/netdata/conf.d" ]; then
+ stock_dir="/usr/lib/netdata/conf.d"
+ fi
+
+ [ -z "${NETDATA_USER_CONFIG_DIR}" ] && NETDATA_USER_CONFIG_DIR="${script_dir}"
+ [ -z "${NETDATA_STOCK_CONFIG_DIR}" ] && NETDATA_STOCK_CONFIG_DIR="${stock_dir}"
+
+ if [ -z "${NETDATA_STOCK_CONFIG_DIR}" ]; then
+ error "Unable to find stock config directory."
+ exit 1
+ fi
+}
+
+check_editor() {
+ if [ -z "${editor}" ]; then
+ if [ -n "${EDITOR}" ] && command -v "${EDITOR}" >/dev/null 2>&1; then
+ editor="${EDITOR}"
+ elif command -v editor >/dev/null 2>&1; then
+ editor="editor"
+ elif command -v vi >/dev/null 2>&1; then
+ editor="vi"
+ else
+ error "Unable to find a usable editor, tried \${EDITOR} (${EDITOR}), editor, and vi."
+ exit 1
+ fi
+ elif ! command -v "${editor}" >/dev/null 2>&1; then
+ error "Unable to locate user specified editor ${editor}, is it in your PATH?"
+ exit 1
+ fi
+}
+
+running_in_container() {
+ [ -e /.dockerenv ] && return 0
+ [ -e /.dockerinit ] && return 0
+ [ -r /proc/1/environ ] && tr '\000' '\n' </proc/1/environ | grep -Eiq '^container=podman' && return 0
+ grep -qF -e /docker/ -e /libpod- /proc/self/cgroup 2>/dev/null && return 0
+}
+
+get_docker_command() {
+ if [ -x "${docker}" ]; then
+ return 0
+ elif command -v docker >/dev/null 2>&1; then
+ docker="$(command -v docker)"
+ elif command -v podman >/dev/null 2>&1; then
+ docker="$(command -v podman)"
+ else
+ error "Unable to find a usable container tool stack. I support Docker and Podman."
+ exit 1
+ fi
+}
+
+run_in_container() {
+ ${docker} exec "${1}" /bin/sh -c "${2}" || return 1
+ return 0
+}
+
+check_for_container() {
+ get_docker_command
+ ${docker} container inspect "${1}" >/dev/null 2>&1 || return 1
+ run_in_container "${1}" "[ -d \"${NETDATA_STOCK_CONFIG_DIR}\" ]" >/dev/null 2>&1 || return 1
+ return 0
+}
+
+handle_container() {
+ if running_in_container; then
+ return 0
+ elif [ -z "${container}" ] && [ -f "${script_dir}/.container-hostname" ]; then
+ echo >&2 "Autodetected containerized Netdata instance. Attempting to autodetect container ID."
+ possible_container="$(cat "${script_dir}/.container-hostname")"
+ if check_for_container "${possible_container}"; then
+ container="${possible_container}"
+ elif check_for_container netdata; then
+ container="netdata"
+ else
+ error "Could not autodetect container ID. It must be supplied on the command line with the --container option."
+ exit 1
+ fi
+
+ echo >&2 "Found Netdata container with ID or name ${container}"
+ elif [ -n "${container}" ]; then
+ if ! check_for_container "${container}"; then
+ error "No container with ID or name ${container} exists."
+ exit 1
+ fi
+ fi
+}
+
+list_files() {
+ check_directories
+ handle_container
+
+ if test -t; then
+ width="$(tput cols)"
+ fi
+
+ if [ -z "${container}" ]; then
+ if [ "$(uname -s)" = "Linux" ]; then
+ # shellcheck disable=SC2046,SC2086
+ files="$(cd "${NETDATA_STOCK_CONFIG_DIR}" && ls ${width:+-C} ${width:+-w ${width}} $(find . -type f | cut -d '/' -f 2-))"
+ elif [ "$(uname -s)" = "FreeBSD" ]; then
+ if [ -n "${width}" ]; then
+ export COLUMNS="${width}"
+ fi
+
+ # shellcheck disable=SC2046
+ files="$(cd "${NETDATA_STOCK_CONFIG_DIR}" && ls ${width:+-C} $(find . -type f | cut -d '/' -f 2-))"
+ else
+ # shellcheck disable=SC2046
+ files="$(cd "${NETDATA_STOCK_CONFIG_DIR}" && ls $(find . -type f | cut -d '/' -f 2-))"
+ fi
+ else
+ files="$(run_in_container "${container}" "cd /usr/lib/netdata/conf.d && ls ${width:+-C} ${width:+-w ${width}} \$(find . -type f | cut -d '/' -f 2-)")"
+ fi
+
+ if [ -z "${files}" ]; then
+ error "Failed to find any configuration files."
+ exit 1
+ fi
+
+ cat <<EOF
+The following configuration files are known to this script:
+
+${files}
+EOF
+ exit 0
+}
+
+parse_args() {
+ while [ -n "${1}" ]; do
+ case "${1}" in
+ "--help") usage ;;
+ "--list") list_files ;;
+ "--file")
+ if [ -n "${2}" ]; then
+ file="${2}"
+ shift 1
+ else
+ error "No file specified to edit."
+ exit 1
+ fi
+ ;;
+ "--container")
+ if [ -n "${2}" ]; then
+ container="${2}"
+ shift 1
+ else
+ error "No container ID or name specified with the --container option."
+ exit 1
+ fi
+ ;;
+ "--editor")
+ if [ -n "${2}" ]; then
+ editor="${2}"
+ shift 1
+ else
+ error "No editor specified with the --editor option."
+ exit 1
+ fi
+ ;;
+ *)
+ if [ -z "${2}" ]; then
+ file="${1}"
+ else
+ error "Unrecognized option ${1}."
+ exit 1
+ fi
+ ;;
+ esac
+ shift 1
+ done
+
+ [ -z "${file}" ] && usage
+
+ absfile="$(abspath "${file}")"
+ if ! is_prefix "${script_dir}" "${absfile}"; then
+ error "${file} is not located under ${script_dir}"
+ exit 1
+ fi
+
+ file="${absfile##"${script_dir}"}"
+}
+
+copy_native() {
+ if [ ! -w "${NETDATA_USER_CONFIG_DIR}" ]; then
+ error "Cannot write to ${NETDATA_USER_CONFIG_DIR}!"
+ exit 1
+ fi
+
+ if [ -f "${NETDATA_STOCK_CONFIG_DIR}/${1}" ]; then
+ echo >&2 "Copying '${NETDATA_STOCK_CONFIG_DIR}/${1}' to '${NETDATA_USER_CONFIG_DIR}/${1}' ... "
+ cp -p "${NETDATA_STOCK_CONFIG_DIR}/${1}" "${NETDATA_USER_CONFIG_DIR}/${1}" || exit 1
+ else
+ echo >&2 "Creating empty '${NETDATA_USER_CONFIG_DIR}/${1}' ... "
+ touch "${NETDATA_USER_CONFIG_DIR}/${1}" || exit 1
+ fi
+}
+
+copy_container() {
+ if [ ! -w "${NETDATA_USER_CONFIG_DIR}" ]; then
+ error "Cannot write to ${NETDATA_USER_CONFIG_DIR}!"
+ exit 1
+ fi
+
+ if run_in_container "${container}" "[ -f \"${NETDATA_STOCK_CONFIG_DIR}/${1}\" ]"; then
+ echo >&2 "Copying '${NETDATA_STOCK_CONFIG_DIR}/${1}' to '${NETDATA_USER_CONFIG_DIR}/${1}' ... "
+ ${docker} cp -a "${container}:${NETDATA_STOCK_CONFIG_DIR}/${1}" "${NETDATA_USER_CONFIG_DIR}/${1}" || exit 1
+ else
+ echo >&2 "Creating empty '${NETDATA_USER_CONFIG_DIR}/${1}' ... "
+ touch "${NETDATA_USER_CONFIG_DIR}/${1}" || exit 1
+ fi
+}
+
+copy() {
+ if [ -f "${NETDATA_USER_CONFIG_DIR}/${1}" ]; then
+ return 0
+ elif [ -n "${container}" ]; then
+ copy_container "${1}"
+ else
+ copy_native "${1}"
+ fi
+}
+
+edit() {
+ echo >&2 "Editing '${1}' ..."
+
+ # check we can edit
+ if [ ! -w "${1}" ]; then
+ error "Cannot write to ${1}!"
+ exit 1
+ fi
+
+ "${editor}" "${1}"
+ exit $?
+}
+
+main() {
+ parse_args "${@}"
+ check_directories
+ check_editor
+ handle_container
+ copy "${file}"
+ edit "${absfile}"
+}
+
+main "${@}"
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