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import fs from "node:fs";
import { TemplatePath } from "@11ty/eleventy-utils";
// Checks both files and directories
class ExistsCache {
#exists = new Map();
#dirs = new Map();
constructor() {
this.lookupCount = 0;
}
get size() {
return this.#exists.size;
}
has(path) {
return this.#exists.has(path);
}
set(path, isExist) {
this.#exists.set(TemplatePath.addLeadingDotSlash(path), Boolean(isExist));
}
// Not yet needed
// setDirectory(path, isExist) {}
// Relative paths (to root directory) expected (but not enforced due to perf costs)
exists(path) {
if (!this.#exists.has(path)) {
let exists = fs.existsSync(path);
this.lookupCount++;
// mark for next time
this.#exists.set(path, Boolean(exists));
return exists;
}
return this.#exists.get(path);
}
isDirectory(path) {
if (!this.exists(path)) {
return false;
}
if (!this.#dirs.has(path)) {
let isDir = fs.statSync(path).isDirectory();
this.lookupCount++;
// mark for next time
this.#dirs.set(path, isDir);
return isDir;
}
return this.#dirs.get(path);
}
}
export default ExistsCache;
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