add CI check for style.css

.github/check_tailwind_prod_version.bash

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+set -e
+
+pushd web/styles
+
+npm ci
+npm run compile-prod
+
+# if the above results in a changes against HEAD
+# an updated version of styles.css needs to be commited.
+git diff-index --quiet HEAD || {
+    echo "git tree is dirty after running compile-prod target"
+    git diff-index --name-only HEAD
+    exit 1
+}
+
+popd

.github/find_large_assets.bash

@@ -1,14 +1,16 @@
 #!/usr/bin/env bash
 
 # files in assets with more then 100kb and count them
-count=$(find web/assets -size '+100k' | wc -l)
+find web/assets -size '+100k' > /tmp/big-assets.txt
+count=$(cat /tmp/big-assets.txt | wc -l)
 
 
 # make sure count is an integer
 let count=count+0
 
 
 if [ $count -ne 0 ]; then
-  echo "found $count big assets"
+  echo "found $count big assets - maybe development tailwind was commited? listing follows:"
+  cat /tmp/big-assets.txt
   exit 1
 fi

.github/workflows/go.yml

@@ -22,6 +22,10 @@ jobs:
       with:
         node-version: 14.x
 
+    - name: See if style.css needs to be updated
+      run: |
+        ${GITHUB_WORKSPACE}/.github/check_tailwind_prod_version.bash
+
     - name: Set up Go
       uses: actions/setup-go@v2
       with: