Supporting custom tests for Mustache templates

.github/workflows/lint_code.yaml

@@ -102,9 +102,20 @@ jobs:
         run: |
           echo '{"array": ["dummy"], "variable": "dummy"}' > .mustache_config.json
           for yamlfile in $(find . -name "*.yml" -o -name "*.yaml"); do
-            sed "s|{{\([/#]\)[^}]*}}|{{\1array}}|g" $yamlfile > expanded.tmp  # replace mustache arrays
-            sed -i "s|{{[^#/].\{1,\}}}|{{variable}}|g" expanded.tmp           # replace mustache variables
-            mustache .mustache_config.json expanded.tmp > $yamlfile           # perform mustache expansion overwriting original file
+
+            filename=$(basename -- "$yamlfile")
+            extension="${filename##*.}"
+            filename="${filename%.*}"
+            test_config="tests/mustache/$filename.config.json"
+
+            if [ -e "$test_config" ]; then
+              mustache $test_config $yamlfile > $yamlfile
+            else 
+              sed "s|{{\([/#]\)[^}]*}}|{{\1array}}|g" $yamlfile > expanded.tmp  # replace mustache arrays
+              sed -i "s|{{[^#/].\{1,\}}}|{{variable}}|g" expanded.tmp           # replace mustache variables
+              mustache .mustache_config.json expanded.tmp > $yamlfile           # perform mustache expansion overwriting original file
+            fi 
+
           done
           rm expanded.tmp
       - name: Lint YAML

tests/mustache/AdGuardHome.mustache.config.json

@@ -0,0 +1,7 @@
+{
+    "filter_allow": [
+        "clamav.net",
+        "current.cvd.clamav.net"
+    ],
+    "allow_workspace_internet": true
+}