Usage: $0 SOURCE_FILE OUTPUT_FILE

create_env_file.sh

#!/bin/bash

if [ "$#" -ne 2 ]; then
  echo "Usage: $0 SOURCE_FILE OUTPUT_FILE"
  exit 1
fi

# Template file with placeholders
TEMPLATE_FILE="env.tmpl"

SOURCE_FILE="$1"
OUTPUT_FILE="$2"

# Check if the template file exists
if [ ! -f "$TEMPLATE_FILE" ]; then
  echo "Template file $TEMPLATE_FILE not found."
  exit 1
fi

# Check if the source file exists
if [ ! -f "$SOURCE_FILE" ]; then
  echo "Source file $SOURCE_FILE not found."
  exit 1
fi

# Read the template file into a variable
TEMPLATE_CONTENT=$(cat "$TEMPLATE_FILE")
# Read the template file into a variable
TEMPLATE_CONTENT2=$(cat "$SOURCE_FILE")

# Loop through each line in the source file
while IFS= read -r line; do
  # Split the line into a key and value using '=' as the delimiter
  key=$(echo "$line" | cut -d '=' -f 1)
  value=$(echo "$line" | cut -d '=' -f 2-)

  # Remove double quotes from the value if they exist
  value=$(echo "$value" | sed 's/"//g')

  # Use sed to replace the placeholders in the template with values
  TEMPLATE_CONTENT=$(echo "$TEMPLATE_CONTENT" | sed "s|%$key%|$value|g")
done < "$SOURCE_FILE"

# Write the modified content to the output file
echo "$TEMPLATE_CONTENT" > "$OUTPUT_FILE"
echo "Created .env file."