chore(#3271): CI install CodeFormat from luarocks

Author: alex-courtis

.github/workflows/ci.yml

@@ -50,6 +50,7 @@ jobs:
       matrix:
         nvim_version: [ stable, nightly ]
         luals_version: [ 3.15.0 ]
+        emmyluacodestyle_version: [ 1.5.7 ]
 
     env:
       VIMRUNTIME: /home/runner/nvim-${{ matrix.nvim_version }}/share/nvim/runtime
@@ -71,6 +72,9 @@ jobs:
           curl -L "https://github.com/LuaLS/lua-language-server/releases/download/${{ matrix.luals_version }}/lua-language-server-${{ matrix.luals_version }}-linux-x64.tar.gz" | tar zx --directory luals
           echo "luals/bin" >> "$GITHUB_PATH"
 
+      - name: install emmyluacodestyle ${{ matrix.emmyluacodestyle_version }}
+        run: luarocks install emmyluacodestyle ${{ matrix.emmyluacodestyle_version }}
+
       - run: make check
 
       - run: make style

Makefile

@@ -32,7 +32,7 @@ format-fix:
 
 format-check:
 	CodeFormat format --config .editorconfig --workspace lua
-	git diff --exit-code lua
+	git diff --exit-code lua || printf "\n\nPlease run: make format-fix\n"
 
 #
 # utility