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import { TemplatePath } from "@11ty/eleventy-utils";
import eventBus from "./EventBus.js";
// Note: this is only used for TemplateLayout right now but could be used for more
// Just be careful because right now the TemplateLayout cache keys are not directly mapped to paths
// So you may get collisions if you use this for other things.
class LayoutCache {
constructor() {
this.cache = {};
this.cacheByInputPath = {};
}
clear() {
this.cache = {};
this.cacheByInputPath = {};
}
// alias
removeAll() {
for (let layoutFilePath in this.cacheByInputPath) {
this.remove(layoutFilePath);
}
this.clear();
}
size() {
return Object.keys(this.cacheByInputPath).length;
}
add(layoutTemplate) {
let keys = new Set();
if (typeof layoutTemplate === "string") {
throw new Error(
"Invalid argument type passed to LayoutCache->add(). Should be a TemplateLayout.",
);
}
if ("getFullKey" in layoutTemplate) {
keys.add(layoutTemplate.getFullKey());
}
if ("getKey" in layoutTemplate) {
// if `key` was an alias, also set to the pathed layout value too
// e.g. `layout: "default"` and `layout: "default.liquid"` will both map to the same template.
keys.add(layoutTemplate.getKey());
}
for (let key of keys) {
this.cache[key] = layoutTemplate;
}
// also the full template input path for use with eleventy --serve/--watch e.g. `_includes/default.liquid` (see `remove` below)
let fullPath = TemplatePath.stripLeadingDotSlash(layoutTemplate.inputPath);
this.cacheByInputPath[fullPath] = layoutTemplate;
}
has(key) {
return key in this.cache;
}
get(key) {
if (!this.has(key)) {
throw new Error(`Could not find ${key} in LayoutCache.`);
}
return this.cache[key];
}
remove(layoutFilePath) {
layoutFilePath = TemplatePath.stripLeadingDotSlash(layoutFilePath);
if (!this.cacheByInputPath[layoutFilePath]) {
// not a layout file
return;
}
let layoutTemplate = this.cacheByInputPath[layoutFilePath];
layoutTemplate.resetCaches();
let keys = layoutTemplate.getCacheKeys();
for (let key of keys) {
delete this.cache[key];
}
delete this.cacheByInputPath[layoutFilePath];
}
}
let layoutCache = new LayoutCache();
eventBus.on("eleventy.resourceModified", () => {
// https://github.com/11ty/eleventy-plugin-bundle/issues/10
layoutCache.removeAll();
});
// singleton
export default layoutCache;
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