Update check build assets (#136)

We need to check for the `git diff` because we want those changes to be
stashed.

After some local testing, I think this is the _final_ version 😄

Author: humitos

.pre-commit-config.yaml

@@ -22,7 +22,7 @@ repos:
         exclude: "^dist/.*$"
 
   - repo: .
-    rev: 8009448ebb4fb1e133674921404bf6c53cc3a96a
+    rev: cc33b64
     hooks:
       - id: check-build-assets
         exclude: "^dist/.*$"

check-build-assets.sh

@@ -2,7 +2,7 @@
 
 npm run build
 
-if [[ `git status dist/ --porcelain` ]]
+if [[ `git diff dist/` ]]
 then
     echo "ERROR: assets are out of date."
     echo "Run 'git add dist/*' to stash the changes before commiting."