Update ecs generator launcher script

docker/ecs/ecs.sh

@@ -13,41 +13,73 @@ set -e
 # ====
 # Checks that the script is run from the intended location
 # ====
-function check_project_root_folder() {
-    current=$(basename "$(pwd)")
+function navigate_to_project_root() {
+    local repo_root_marker
+    local script_path
+    local script_abs_path
 
-    if [[ "$0" != "./ecs.sh" && "$0" != "ecs.sh" ]]; then
-        echo "Run the script from its location"
-        usage
+    repo_root_marker=".github"
+    script_path=$(dirname "$0")
+    script_abs_path=$(cd "$script_path" && pwd)
+
+    while [[ "$script_abs_path" != "/" ]] && [[ ! -f "$script_abs_path/$repo_root_marker" ]]; do
+        script_abs_path=$(dirname "$script_abs_path")
+    done
+
+    if [[ "$script_abs_path" == "/" ]]; then
+        echo "Unable to find the repository root."
         exit 1
     fi
-    # Change working directory to the root of the repository
-    cd ../..
+
+    cd "$script_abs_path"
+}
+
+# ====
+# Displays usage information
+# ====
+function usage() {
+    echo "Usage: $0 {up|down|stop} <ECS_MODULE> [REPO_PATH]"
+    exit 1
 }
 
 function main() {
-  export REPO_PATH="$2"
-  export ECS_MODULE="$3"
-  local compose_filename="docker/${current}/ecs.yml"
-  local compose_cmd="docker compose run -f $compose_filename"
-
-  case $1 in
-  up)
-      # Main folder created here to grant access to both containers
-      mkdir -p artifacts
-      $compose_cmd up -d
-      ;;
-  down)
-      $compose_cmd down
-      ;;
-  stop)
-      $compose_cmd stop
-      ;;
-  *)
-      usage
-      exit 1
-      ;;
-  esac
+    local compose_filename
+    local compose_cmd
+    local module
+    local repo_path
+
+    if [[ "$#" -lt 2 || "$#" -gt 3 ]]; then
+        usage
+    fi
+
+    navigate_to_project_root
+
+    module="$2"
+    if [[ -n "$3" ]]; then
+        repo_path="$3"
+    else
+        repo_path="$(pwd)"
+    fi
+
+    compose_filename="docker/ecs/ecs.yml"
+    compose_cmd="docker-compose -f $compose_filename"
+
+    case $1 in
+        up)
+            # Main folder created here to grant access to both containers
+            mkdir -p artifacts
+            $compose_cmd ECS_MODULE="$module" REPO_PATH="$repo_path" up -d
+            ;;
+        down)
+            $compose_cmd down
+            ;;
+        stop)
+            $compose_cmd stop
+            ;;
+        *)
+            usage
+            ;;
+    esac
 }
 
 main "$@"