Add missing close file and missing stop ticker (#300)

* Add missing close file and missing stop ticker

* Defer close file after checking error

* Update exchange_template.go

codelingo.yaml

@@ -7,6 +7,7 @@ tenets:
   - import: codelingo/effective-go/underscores-in-name
   - import: codelingo/effective-go/unnecessary-else
   - import: codelingo/code-review-comments/declare-empty-slice 
+  - import: codelingo/effective-go/defer-close-file
   # Overwrite one tenet with custom logic
   # - import: codelingo/effective-go/comment-first-word-when-empty
   - name: comment-first-word-when-empty
@@ -32,3 +33,31 @@ tenets:
         go.ident:
           name as funcName
           public == "true"
+  - name:  missing-stop-ticker
+    flows:
+      codelingo/review:
+        comment: Add `defer {{varName}}.Stop()` to stop the ticker and release associated resources.
+    query: |
+      import codelingo/ast/go
+
+      go.func_decl(depth = any):
+        @review comment
+        go.assign_stmt(depth = any):
+          go.lhs:
+            go.ident:
+              sibling_order == 0
+              name as varName
+          go.rhs:
+            go.call_expr:
+              go.selector_expr:
+                go.ident:
+                  name == "time"
+                go.ident:
+                  name == "NewTicker"
+        exclude:
+          go.call_expr(depth = any):
+            go.selector_expr:
+              go.ident:
+                name ==  varName
+              go.ident:
+                name == "Stop"