Compile Google's ngx_brotli modules with your nginx installation

ngx_brotli_module.sh

#!/bin/bash

# Helper function for error checking and user-friendly messages
exit_if_fail() {
  local exit_code=$?
  local message=$1
  if [ $exit_code -ne 0 ]; then
    echo "Error: $message"
    exit $exit_code
  fi
}

# Create a temporary directory
TEMP_DIR=$(mktemp -d)
exit_if_fail "Failed to create a temporary directory."

# Install dependencies
echo "Installing dependencies..."
sudo apt install -y git gcc cmake libpcre3 libpcre3-dev zlib1g zlib1g-dev openssl libssl-dev libbrotli-dev >/dev/null 2>&1
exit_if_fail "Failed to install required dependencies."

# Extract Nginx version
echo "Extracting Nginx version..."
NGINX_VERSION=$(nginx -v 2>&1 | awk -F '/' '{print $2}' | awk '{print $1}')
exit_if_fail "Failed to extract NGINX version or NGINX is not installed."

# Extract Nginx modules path
echo "Extracting Nginx modules path..."
NGINX_MODULES_PATH=$(nginx -V 2>&1 | grep -oP '(?<=--modules-path=)[^\s]+')
exit_if_fail "Failed to extract the Nginx modules path."

# Change to the temporary directory and confirm change
cd $TEMP_DIR
exit_if_fail "Failed to change to the temporary directory."

# Download and unpack Nginx source code
echo "Downloading Nginx source code..."
wget https://nginx.org/download/nginx-$NGINX_VERSION.tar.gz >/dev/null 2>&1
exit_if_fail "Failed to download NGINX source code."

echo "Unpacking Nginx source code..."
tar zxvf nginx-$NGINX_VERSION.tar.gz >/dev/null 2>&1
exit_if_fail "Failed to unpack Nginx source code."

# Clone Brotli module from the official Google repository
echo "Cloning ngx_brotli module..."
git clone https://github.com/google/ngx_brotli.git --recursive >/dev/null 2>&1
exit_if_fail "Failed to clone ngx_brotli from the official repository."

# Configure and build Brotli module with Nginx
echo "Configuring and building ngx_brotli module with Nginx..."
cd nginx-$NGINX_VERSION
sudo ./configure --with-compat --add-dynamic-module=$TEMP_DIR/ngx_brotli >/dev/null 2>&1
exit_if_fail "Failed to configure Nginx with the ngx_brotli module."

sudo make modules >/dev/null 2>&1
exit_if_fail "Failed to build ngx_brotli module."

# Copy ready module *.so files to the Nginx modules folder
echo "Copying ngx_brotli modules to Nginx modules path..."
sudo cp objs/ngx_http_brotli_filter_module.so objs/ngx_http_brotli_static_module.so $NGINX_MODULES_PATH
exit_if_fail "Failed to copy ngx_brotli module files to Nginx modules path."

# Change back to the original directory
cd $OLDPWD

# Clean up the temporary directory
echo "Cleaning up temporary files..."
rm -rf $TEMP_DIR
if [ $? -ne 0 ]; then
  echo "Warning: Failed to remove the temporary directory."
fi

echo "ngx_brotli module installation completed successfully. Don't forget to restart nginx"