Added alias

mix.exs

@@ -96,11 +96,11 @@ defmodule Pinchflat.MixProject do
       "assets.deploy": ["tailwind default --minify", "esbuild default --minify", "phx.digest"],
       "ecto.migrate": [
         "ecto.migrate",
-        "cmd yarn run sqleton -o priv/repo/erd.png priv/repo/pinchflat_dev.db"
+        ~s(cmd [ -z "$MIX_ENV" ] && yarn run create-erd || echo "No ERD generated")
       ],
       "ecto.rollback": [
         "ecto.rollback",
-        "cmd yarn run sqleton -o priv/repo/erd.png priv/repo/pinchflat_dev.db"
+        ~s(cmd [ -z "$MIX_ENV" ] && yarn run create-erd || echo "No ERD generated")
       ]
     ]
   end

package.json

@@ -4,5 +4,8 @@
     "prettier": "3.2.4",
     "sqleton": "https://github.com/kieraneglin/sqleton#ke/add-index-support"
   },
+  "scripts": {
+    "create-erd": "sqleton -o priv/repo/erd.png priv/repo/pinchflat_dev.db"
+  },
   "private": true
 }