243 lines
6.9 KiB
Bash
243 lines
6.9 KiB
Bash
#!/bin/sh
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have_envvar() {
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[ -n "$1" ] || return 1
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grep -Ezq "^$1=" /proc/self/environ || return
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}
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## unexporting variable in (POSIX) sh is PITA =/
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unexport() {
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unset ___k ___v
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for ___k ; do
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[ -n "${___k}" ] || continue
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have_envvar "${___k}" || continue
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___v=$(eval printf '%s' "\"\${${___k}}\"")
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eval "unset ${___k}"
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eval "${___k}=$(env printf '%s' \"\${___v}\")"
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unset ___v
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done
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unset ___k
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}
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## likely the same as in https://pkg.go.dev/strconv#ParseBool
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gobool_to_int() {
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## local value=$1
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## local default=$2
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case "${1:-_}" in
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1 | [Tt] | [Tt][Rr][Uu][Ee] ) echo 1 ;;
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0 | [Ff] | [Ff][Aa][Ll][Ss][Ee] ) echo 0 ;;
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* ) echo "${2:-error}" ;;
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esac
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}
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[ -n "${__IEP_SRC:-}" ] || __IEP_SRC="$0"
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IEP_TRACE=$(gobool_to_int "${IEP_TRACE:-0}" 0)
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export IEP_TRACE
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if [ "${IEP_TRACE}" = 1 ] ; then
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log_always() { echo "# $(date +'%Y-%m-%d %H:%M:%S.%03N %z'): ${__IEP_SRC}${*:+: $*}" >&2 ; }
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else
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log_always() { echo "# ${__IEP_SRC}${*:+: $*}" >&2 ; }
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fi
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IEP_VERBOSE=$(gobool_to_int "${IEP_VERBOSE:-${IEP_TRACE}}" "${IEP_TRACE}")
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export IEP_VERBOSE
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if [ "${IEP_VERBOSE}" = 1 ] ; then
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log() { log_always "$@" ; }
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log_file() { sed -E '/^./s,^, ,' < "$1" >&2 ; }
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else
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log() { : ;}
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log_file() { :; }
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fi
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if [ "${IEP_VERBOSE}" = 0 ] ; then
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ln_s() { ln -s "$@" || return; }
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else
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ln_s() { ln -sv "$@" || return; }
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fi
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have_cmd() { command -v "$1" >/dev/null 2>&1 || return ; }
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strip_suffix() { printf '%s' "${1%"$2"}" | tr -s '/' ; }
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untemplate_path() {
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case "$1" in
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## inplace
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/run/angie/* | /etc/angie/run/* )
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strip_suffix "$1" "$2"
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;;
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/etc/angie/conf.d/* | /etc/angie/mod.d/* | /etc/angie/modules.d/* | /etc/angie/njs.d/* | /etc/angie/site.d/* | /etc/angie/snip.d/* )
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strip_suffix "$1" "$2"
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;;
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/etc/angie/static.d/* )
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strip_suffix "$1" "$2"
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;;
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## set appropriate location
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/etc/angie/* )
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strip_suffix "/run/angie${1#/etc/angie}" "$2"
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;;
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/tmp/* )
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log_always "untemplate_path() shouldn't work with /tmp/: $1"
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strip_suffix "$1" "$2"
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;;
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## last resort - STRONGLY AVOID
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/* )
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log_always "untemplate_path() does uncommon/last-resort mapping for: $1"
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strip_suffix "/run/angie/tmp$1" "$2"
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;;
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## misbehavior!
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* )
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log_always "untemplate_path() doesn't work with relative paths: $1"
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return 1
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;;
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esac
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}
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install_userdir() {
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if [ "${IEP_ROOT}" = 1 ] ; then
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install -d -o "${NGX_USER}" -g "${NGX_GROUP}" "$@"
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else
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install -d "$@"
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fi
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}
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untemplate_file_envsubst() {
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[ -n "$1" ] || return
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[ -f "$1" ] || { log_always "file not found: $1" ; return 1 ; }
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[ -n "${NGX_ENVSUBST_SUFFIX:-}" ] || { log "NGX_ENVSUBST_SUFFIX is empty" ; return 1 ; }
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__dest="$2"
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[ -n "${__dest}" ] || __dest=$(untemplate_path "$1" "${NGX_ENVSUBST_SUFFIX}") || return
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[ -d "${__dest%/*}" ] || install_userdir "${__dest%/*}" || return
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log "Running envsubst: $1 -> ${__dest}"
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envsubst.sh < "$1" > "${__dest}" || return
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}
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## notes:
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## - (OPTIONAL) place own wrapper script as "/usr/local/sbin/jinja.py"
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## in order to perform different template processing
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untemplate_file_jinja() {
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[ -n "$1" ] || return
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[ -f "$1" ] || { log_always "file not found: $1" ; return 1 ; }
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[ -n "${NGX_JINJA_SUFFIX:-}" ] || { log "NGX_JINJA_SUFFIX is empty" ; return 1 ; }
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__dest="$2"
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[ -n "${__dest}" ] || __dest=$(untemplate_path "$1" "${NGX_JINJA_SUFFIX}") || return
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[ -d "${__dest%/*}" ] || install_userdir "${__dest%/*}" || return
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log "Running jinja.py: $1 -> ${__dest}"
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jinja.py "$1" "${__dest}" || return
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}
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untemplate_dir_envsubst() {
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[ -n "${NGX_ENVSUBST_SUFFIX:-}" ] || { log "NGX_ENVSUBST_SUFFIX is empty" ; return 1 ; }
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__template_list=$(mktemp) || return
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find "$@" -follow -type f -name "*${NGX_ENVSUBST_SUFFIX}" \
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| sort -uV > "${__template_list}"
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__have_args="${ENVSUBST_ARGS:+1}"
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if [ -z "${__have_args}" ] ; then
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## optimize envsubst.sh invocation by caching argument list
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## ref: envsubst.sh
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ENVSUBST_ARGS=$(mktemp) || return
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envsubst-args.sh > "${ENVSUBST_ARGS}"
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export ENVSUBST_ARGS
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fi
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while read -r _orig_file ; do
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[ -n "${_orig_file}" ] || continue
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untemplate_file_envsubst "${_orig_file}"
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done < "${__template_list}"
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if [ -z "${__have_args}" ] ; then
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rm -f "${ENVSUBST_ARGS}" ; unset ENVSUBST_ARGS
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fi
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unset __have_args
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rm -f "${__template_list}" ; unset __template_list
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}
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untemplate_dir_jinja() {
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[ -n "${NGX_JINJA_SUFFIX:-}" ] || { log "NGX_JINJA_SUFFIX is empty" ; return 1 ; }
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__template_list=$(mktemp) || return
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find "$@" -follow -type f -name "*${NGX_JINJA_SUFFIX}" \
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| sort -uV > "${__template_list}"
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while read -r _orig_file ; do
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[ -n "${_orig_file}" ] || continue
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untemplate_file_jinja "${_orig_file}"
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done < "${__template_list}"
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rm -f "${__template_list}" ; unset __template_list
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}
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remap_path() {
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[ -n "$1" ] || return
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case "$1" in
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## conf
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/etc/angie/conf.dist/* ) echo "${2:-/etc/angie/conf.d}${1#/etc/angie/conf.dist}" ;;
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/etc/angie/conf/* ) echo "${2:-/etc/angie/conf.d}${1#/etc/angie/conf}" ;;
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/angie/conf/* ) echo "${2:-/etc/angie/conf.d}${1#/angie/conf}" ;;
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## mod
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/etc/angie/mod.dist/* ) echo "${2:-/etc/angie/mod.d}${1#/etc/angie/mod.dist}" ;;
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/etc/angie/mod/* ) echo "${2:-/etc/angie/mod.d}${1#/etc/angie/mod}" ;;
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/angie/mod/* ) echo "${2:-/etc/angie/mod.d}${1#/angie/mod}" ;;
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## modules
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/etc/angie/modules.dist/* ) echo "${2:-/etc/angie/modules.d}${1#/etc/angie/modules.dist}" ;;
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/etc/angie/modules/* ) echo "${2:-/etc/angie/modules.d}${1#/etc/angie/modules}" ;;
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/angie/modules/* ) echo "${2:-/etc/angie/modules.d}${1#/angie/modules}" ;;
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## njs
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/etc/angie/njs.dist/* ) echo "${2:-/etc/angie/njs.d}${1#/etc/angie/njs.dist}" ;;
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/etc/angie/njs/* ) echo "${2:-/etc/angie/njs.d}${1#/etc/angie/njs}" ;;
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/angie/njs/* ) echo "${2:-/etc/angie/njs.d}${1#/angie/njs}" ;;
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## site
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/etc/angie/site.dist/* ) echo "${2:-/etc/angie/site.d}${1#/etc/angie/site.dist}" ;;
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/etc/angie/site/* ) echo "${2:-/etc/angie/site.d}${1#/etc/angie/site}" ;;
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/angie/site/* ) echo "${2:-/etc/angie/site.d}${1#/angie/site}" ;;
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## snip
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/etc/angie/snip.dist/* ) echo "${2:-/etc/angie/snip.d}${1#/etc/angie/snip.dist}" ;;
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/etc/angie/snip/* ) echo "${2:-/etc/angie/snip.d}${1#/etc/angie/snip}" ;;
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/angie/snip/* ) echo "${2:-/etc/angie/snip.d}${1#/angie/snip}" ;;
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## static
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/etc/angie/static.dist/* ) echo "${2:-/etc/angie/static.d}${1#/etc/angie/static.dist}" ;;
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/etc/angie/static/* ) echo "${2:-/etc/angie/static.d}${1#/etc/angie/static}" ;;
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/angie/static/* ) echo "${2:-/etc/angie/static.d}${1#/angie/static}" ;;
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## log
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/etc/angie/log.dist/* ) echo "${2:-/etc/angie/log.d}${1#/etc/angie/log.dist}" ;;
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/angie/log/* ) echo "${2:-/etc/angie/log.d}${1#/angie/log}" ;;
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## misbehavior!
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* )
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log_always "remap_path() doesn't know how to handle this path: $1"
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return 1
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;;
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esac
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}
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merged_root='/run/angie/merged'
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combine_remap_path() {
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[ -n "$1" ] || return
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case "$1" in
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"${merged_root}"/* ) echo "${2:-/run/angie}${1#"${merged_root}"}" ;;
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## misbehavior!
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* )
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log_always "combine_remap_path() doesn't know how to handle this path: $1"
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return 1
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;;
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esac
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}
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