Add cache option

docs/configuration.md

@@ -15,6 +15,7 @@ const env = vento({
   useWith: true,
   includes: Deno.cwd(),
   autoescape: false,
+  cache: true,
 });
 ```
 
@@ -84,6 +85,16 @@ const result = env.runString("{{ title |> safe }}", {
 
 The path of the directory that Vento will use to look for includes templates.
 
+### cache
+
+Set `false` to ignore the cache, and re-compile the template when loading.
+
+```js
+const env = vento({
+  cache: false, // default is true
+});
+```
+
 ## Filters
 
 Filters are custom functions to transform the content.

mod.ts

@@ -18,6 +18,7 @@ export interface Options {
   useWith?: boolean;
   dataVarname?: string;
   autoescape?: boolean;
+  cache?: boolean;
 }
 
 export default function (options: Options = {}) {
@@ -30,6 +31,7 @@ export default function (options: Options = {}) {
     dataVarname: options.dataVarname || "it",
     autoescape: options.autoescape ?? false,
     useWith: options.useWith ?? true,
+    cache: options.cache ?? true,
   });
 
   // Register basic plugins

src/environment.ts

@@ -43,6 +43,7 @@ export interface Options {
   dataVarname: string;
   autoescape: boolean;
   useWith: boolean;
+  cache: boolean;
 }
 
 export class Environment {
@@ -75,10 +76,12 @@ export class Environment {
     file?: string,
   ): Promise<TemplateResult> {
     if (file) {
-      const cached = this.cache.get(file);
+      if (this.options.cache) {
+        const cached = this.cache.get(file);
 
-      if (cached) {
-        return await cached(data);
+        if (cached) {
+          return await cached(data);
+        }
       }
 
       const template = this.compile(source, file);
@@ -154,11 +157,13 @@ export class Environment {
   async load(file: string, from?: string): Promise<Template> {
     const path = from ? this.options.loader.resolve(from, file) : file;
 
-    if (!this.cache.has(path)) {
+    if (!this.cache.has(path) || !this.options.cache) {
       const { source, data } = await this.options.loader.load(path);
       const template = this.compile(source, path, data);
 
       this.cache.set(path, template);
+
+      return template;
     }
 
     return this.cache.get(path)!;