configure

#!/bin/bash

set -e

SRC_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)

NGINX_VERSION=${NGINX_VERSION:-1.25.5}
BUILD_INFO_FILE="$SRC_DIR/.build.info"
test -f "$BUILD_INFO_FILE" && . "$BUILD_INFO_FILE"

declare -a CONFIG_OPTS=($CONFIG_OPTS --with-compat --with-cc-opt="-Wformat -Werror=format-security")

if [[ -z "$NGINX_SRC_DIR" ]]; then
  read -t 60 -e -p "Path to NGINX (leave blank to download version $NGINX_VERSION): " NGINX_SRC_DIR || :

  NGINX_SRC_DIR=${NGINX_SRC_DIR/\~/$HOME}

  if [[ -z "$NGINX_SRC_DIR" ]]; then
    NGINX_SRC_DIR="$SRC_DIR/nginx-$NGINX_VERSION"

    # Double check that the directory doesn't already exist before downloading NGINX anew
    if [[ ! -d "$NGINX_SRC_DIR" ]]; then
      if [[ ! -r nginx-${NGINX_VERSION}.tar.gz ]]; then
        if [ -z "$DOWNLOAD_PROGRAM" ]; then
          if hash curl &>/dev/null; then
            DOWNLOAD_PROGRAM="curl -O"
          elif hash wget &>/dev/null; then
            DOWNLOAD_PROGRAM="wget"
          else
            echo "Couldn't find curl or wget, please install either of these programs."
            exit 1
          fi
        fi
        $DOWNLOAD_PROGRAM https://nginx.org/download/nginx-${NGINX_VERSION}.tar.gz
      fi

      tar -xzf nginx-${NGINX_VERSION}.tar.gz
    fi
  fi
fi

if [[ -z "${NGINX_DEBUG+xxx}" ]]; then
  read -t 10 -p "Do you want to enable debug features (not recommended for production usage) [y/N]: " NGINX_DEBUG || :
fi

if [[ "$NGINX_DEBUG" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
  CONFIG_OPTS+=(--with-debug --with-cc-opt="-O0 -g3")
else
  CONFIG_OPTS+=(--with-cc-opt="-DNDEBUG")
fi

if [[ -z "$DYNAMIC_MODULE" ]]; then
  read -t 10 -p "Do you want to create a dynamic module (required for use with NGINX+) [Y/n]: " DYNAMIC_MODULE || :
fi

if [[ "$DYNAMIC_MODULE" =~ ^([yY][eE][sS]|[yY])+$ ]] || [[ -z "$DYNAMIC_MODULE" ]]; then
  CONFIG_OPTS+=(--add-dynamic-module=$SRC_DIR)
  DYNAMIC_MODULE=Y
else
  CONFIG_OPTS+=(--add-module=$SRC_DIR)
fi

BUILD_INFO=("NGINX_SRC_DIR=$NGINX_SRC_DIR" "NGINX_VERSION=$NGINX_VERSION" "NGINX_DEBUG=$NGINX_DEBUG" "DYNAMIC_MODULE=$DYNAMIC_MODULE")

printf '%s\n' "${BUILD_INFO[@]}" >$BUILD_INFO_FILE

cd $NGINX_SRC_DIR && ./configure "${CONFIG_OPTS[@]}" $*