add missing script

deploy/scripts/make_envs_template.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+# Check if the number of arguments provided is correct
+if [ "$#" -ne 1 ]; then
+  echo "Usage: $0 <input_file>"
+  exit 1
+fi
+
+input_file="$1"
+prefix="NEXT_PUBLIC_"
+
+# Function to make the environment variables template file
+# It will read the input file, extract all prefixed string and use them as variables names
+# This variables will have placeholders for their values at buildtime which will be replaced with actual values at runtime
+make_envs_template_file() {
+  output_file=".env.production"
+
+  # Check if file already exists and empty its content if it does
+  if [ -f "$output_file" ]; then
+    > "$output_file"
+  fi
+
+  grep -oE "${prefix}[[:alnum:]_]+" "$input_file" | sort -u | while IFS= read -r var_name; do
+    echo "$var_name=__PLACEHOLDER_FOR_${var_name}__" >> "$output_file"
+  done
+}
+
+# Function to save build-time environment variables to .env file
+save_build-time_envs() {
+  output_file=".env"
+
+  # Check if file already exists and empty its content if it does or create a new one
+  if [ -f "$output_file" ]; then
+    > "$output_file"
+  else
+    touch "$output_file"
+  fi
+
+  env | grep "^${prefix}" | while IFS= read -r line; do
+    echo "$line" >> "$output_file"
+  done
+}
+
+make_envs_template_file
+save_build-time_envs