Create load-env.sh

Author: mythz

load-env.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+
+# Load variables from the .env file into the current shell so they're available to kamal and other commands.
+# NOTE: This script must be *sourced*, not executed, e.g.:
+#   source load-env.sh
+# or
+#   . ./load-env.sh
+
+# Add the necessary variables used by ./config/deploy.yml to .env file, e.g:
+# - GITHUB_REPOSITORY=org/repo         # Repo name used to derive image/service name and folder paths
+# - KAMAL_DEPLOY_IP=100.100.100.100    # IP address of server to deploy to
+# - KAMAL_DEPLOY_HOST=www.example.org  # domain name of website
+# - KAMAL_REGISTRY_USERNAME=user       # Container registry credentials (for ghcr.io)
+# - GITHUB_PACKAGES_TOKEN=ghp_xxx      
+# Login with:
+# echo $KAMAL_REGISTRY_PASSWORD | docker login ghcr.io -u mythz --password-stdin
+
+# If this script is run directly (./load-env.sh), print a warning because
+# environment changes will not persist in the parent shell.
+if [[ "${BASH_SOURCE[0]}" == "$0" ]]; then
+  echo "[load-env] This script must be sourced to affect the current shell:" >&2
+  echo "  source load-env.sh" >&2
+  exit 1
+fi
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+ENV_FILE="$SCRIPT_DIR/.env"
+
+if [[ ! -f "$ENV_FILE" ]]; then
+  echo "[load-env] No .env file found at: $ENV_FILE" >&2
+  return 1
+fi
+
+# Auto-export all variables defined while the script runs
+set -a
+source "$ENV_FILE"
+set +a
+
+echo "[load-env] Loaded environment variables from $ENV_FILE"