deploy.sh updated. Final builds <2mb

deploy.sh

#!/bin/bash

<< BLOCK

MIT License. Do as you wish with this.
  
Author: 2023 Nick Maietta <[email protected]>

This is a bash script that deploys a SvelteKit application to CapRover using the Node 18 enviornment on Alpine Linux.
The script starts by checking if the user has provided an environment name as a command-line argument. If no argument
is provided, the script outputs an error message and exits.

The script then sets up some environment variables based on the argument provided. If the argument is "dev" or "development",
the script sets the environment file to ".env". Otherwise, it sets the environment file to ".env.<environment_name>".

Next, the script checks if the environment file exists. If it doesn't exist, the script prompts the user to create it.
If the user agrees, the script prompts the user for the APP_NAME, APP_TOKEN, and CAPROVER_URL variables, and writes those
variables to the environment file.

After that, the script installs the CapRover CLI globally using npm, if it is not already installed. Then, the script
checks if the app is using the @sveltejs/adapter-auto adapter. If it is, the script changes it to @sveltejs/adapter-node.

The script then builds the project using npm, installs only production dependencies using npm ci, and creates a Dockerfile
for running the app on the host. The Dockerfile is written to a file named "captain-definition" and includes the necessary
environment variable to prevent CORS issues. The script then creates a tar file that includes the "captain-definition" file,
the "package*.json" files, and the "build/" directory.

Finally, the script deploys the project using the CapRover CLI, by passing the tar file, app name, app token, and CapRover URL
as arguments. After the deployment is complete, the script cleans up the tar file.

Overall, this script automates the deployment process for a Node.js app to CapRover, by setting up the necessary environment
variables, building the app, creating a Dockerfile, and deploying the app using the CapRover CLI.
BLOCK

set -e
set -o pipefail

if [[ -z "$1" ]]; then
  echo "Error: Please provide an environment name. Example: ./deploy.sh production"
  echo "Usage: ./deploy.sh <env>"
  exit 1
fi

ENV="$1"
if [[ "$ENV" == "dev" || "$ENV" == "development" ]]; then
  ENV_FILE=".env"
else
  ENV_FILE=".env.$ENV"
fi

if [[ ! -f "$ENV_FILE" ]]; then
  read -p "Environment file $ENV_FILE not found. Create it? (y/n) " -n 1 -r
  echo
  if [[ $REPLY =~ ^[Yy]$ ]]; then
    echo "Please enter the following information for your app:"
    read -p "Enter APP_NAME: " APP_NAME
    read -p "Enter APP_TOKEN: " APP_TOKEN
    read -p "Enter CAPROVER_URL: " CAPROVER_URL
    cat << EOF > "$ENV_FILE"
APP_NAME=$APP_NAME
APP_TOKEN=$APP_TOKEN
CAPROVER_URL=$CAPROVER_URL
EOF
    echo "Environment file $ENV_FILE created."
  else
    echo "Error: $ENV_FILE not found."
    exit 1
  fi
fi

source "$ENV_FILE"

if ! [ -x "$(command -v caprover)" ]; then
  echo "Installing the CapRover CLI globally."
  npm install --quiet -g caprover
fi

# Check if the project is using the auto adapter. If so, change it to node.
if npm ls --depth=0 @sveltejs/adapter-auto >/dev/null 2>&1; then
  sed -i 's/@sveltejs\/adapter-auto/@sveltejs\/adapter-node/g' svelte.config.js
  npm remove @sveltejs/adapter-auto
  npm install --save-dev @sveltejs/adapter-node
fi

# Build the project
npm install
npm run build
npm ci --omit=dev # Install only production dependencies

# Create the Dockerfile for running the app on the host. CapRover provides the ORIGIN environment variable to prevent CORS issues.
cat <<EOF > captain-definition
{
  "schemaVersion": 2,
  "dockerfileLines": [
    "FROM node:18-alpine",
    "ENV ORIGIN=\${ORIGIN}",
    "COPY . .",
    "ENV NODE_ENV production",
    "ENV PORT 80",
    "EXPOSE 80",
    "CMD [ \"node\", \"build/index.js\" ]"
  ]
}
EOF

# Create the tar file
tar -cf deploy.tar captain-definition package*.json build/

# Deploy the project
caprover deploy \
  --tarFile deploy.tar \
  --appName "${APP_NAME}" \
  --appToken "${APP_TOKEN}" \
  --caproverUrl "${CAPROVER_URL}"

# Cleanup
unlink deploy.tar