ngx

#!/bin/bash
# nginx wrapper for the luapower.com website.
# all it does is setting all the needed paths before starting nginx.

die() { echo "$@" >&2; exit 1; }

# everything is done relative to this script's parent dir.
cd "$(dirname "$0")" || die "Could not cd to \"$(dirname "$0")\"."

OPENRESTY_DIR="$PWD/openresty"; [ -d "$OPENRESTY_DIR" ] || die "Directory \"$OPENRESTY_DIR\" not found."
LUAPOWER_DIR="$PWD/luapower";   [ -d "$LUAPOWER_DIR" ]  || die "Directory \"$LUAPOWER_DIR\" not found."
WWW_DIR="$PWD/www";             [ -d "$WWW_DIR" ]       || die "Directory \"$WWW_DIR\" not found."
NGINX_CONF="$PWD/nginx/conf/nginx.conf"; [ -f "$NGINX_CONF" ] || die "File \"$NGINX_CONF\" not found."

which pandoc >/dev/null || echo "WARNING: Pandoc not installed. Documentation will not be visible."

# detect platform. Linux and OSX are supported.
[ "$(uname -m)" != x86_64 ] && P=32 || P=64
[ "${OSTYPE#darwin}" != "$OSTYPE" ] && P=osx$P || P=linux$P

# configure Lua and ldd paths
WWWL="$WWW_DIR/?.lua"
LPB="$LUAPOWER_DIR/bin/$P"
LPBL="$LPB/lua/?.lua"
LPBB="$LPB/clib/?.so"
LPL="$LUAPOWER_DIR/?.lua"
ORL="$OPENRESTY_DIR/lualib/?.lua"
ORB="$OPENRESTY_DIR/lualib/?.so"

export LUA_PATH="$WWWL;$LPBL;$LPL;$ORL"
export LUA_CPATH="$LPBB;$ORB"
export WWW_DIR="$WWW_DIR"
export LUAPOWER_DIR="$LUAPOWER_DIR"
export LD_LIBRARY_PATH="$LPB"

# finally, run nginx
exec "$OPENRESTY_DIR/nginx/sbin/nginx" -p "$PWD/nginx" -c "$PWD/nginx/conf/nginx.conf" "$@"