My NestJS bash script for creating a new NestJS project

my-nest

#!/bin/bash
isPackageManagerSpecified="false";

for ((i=1; i<=$#; i++))
do
  nextArgumentIndex=$((i+1));
  if [[ "${!i}" == "--package-manager" ]] && [[ "${!nextArgumentIndex}" == "pnpm" ]];
  then
    isPackageManagerSpecified="true";
  fi
done

if [[ $isPackageManagerSpecified != "true" ]]
then
  echo "Please chose pnpm as the package manager";
  exit 1;
fi

nest new "$@"

# Go into the created project directory

cd "$1"

# Prettier

rm -rf .prettierrc &> /dev/null
rm -rf .prettierignore &> /dev/null
wget https://gist.githubusercontent.com/kasir-barati/2bcdeea964f88712eca171adb3fbd979/raw/.prettierrc
wget https://gist.githubusercontent.com/kasir-barati/8b32cf62e69e6f87a6bed899eefe1cb5/raw/.prettierignore
node -e "const { readFileSync, writeFileSync } = require('fs'); const packageJson = JSON.parse(readFileSync('package.json', 'utf-8')); const {format, ...rest} = packageJson.scripts; packageJson.scripts = { ...rest, \"format\": \"prettier -w . -u\" }; writeFileSync('package.json', JSON.stringify(packageJson))"

# Add License

wget https://gist.githubusercontent.com/kasir-barati/7574fdf252e2648ebeb119264bcd442d/raw/LICENCE
node -e "const { readFileSync, writeFileSync } = require('fs'); const packageJson = JSON.parse(readFileSync('package.json', 'utf-8')); packageJson.license = 'GPL-3.0'; writeFileSync('package.json', JSON.stringify(packageJson))"

# Later works

pnpm format
git add .
git commit -m "cleanup: prettified";

# Change the project directory as I wanted
mkdir src/app src/modules src/shared
mv src/app.* src/app
git add .
git commit -m "cleanup: change directory structure";

git branch -m main