1 files changed, 75 insertions, 0 deletions
diff --git a/node_modules/@11ty/eleventy-plugin-bundle/src/BundleFileOutput.js b/node_modules/@11ty/eleventy-plugin-bundle/src/BundleFileOutput.js
new file mode 100644
index 0000000..332c5b7
--- /dev/null
+++ b/node_modules/@11ty/eleventy-plugin-bundle/src/BundleFileOutput.js
@@ -0,0 +1,75 @@
+import fs from "node:fs";
+import path from "node:path";
+import debugUtil from "debug";
+
+import { createHash } from "@11ty/eleventy-utils";
+
+const debug = debugUtil("Eleventy:Bundle");
+
+const hashCache = {};
+const directoryExistsCache = {};
+const writingCache = new Set();
+
+class BundleFileOutput {
+	constructor(outputDirectory, bundleDirectory) {
+		this.outputDirectory = outputDirectory;
+		this.bundleDirectory = bundleDirectory || "";
+		this.hashLength = 10;
+		this.fileExtension = undefined;
+	}
+
+	setFileExtension(ext) {
+		this.fileExtension = ext;
+	}
+
+	async getFilenameHash(content) {
+		if(hashCache[content]) {
+			return hashCache[content];
+		}
+
+		let base64hash = await createHash(content);
+		let filenameHash = base64hash.substring(0, this.hashLength);
+		hashCache[content] = filenameHash;
+		return filenameHash;
+	}
+
+	getFilename(filename, extension) {
+		return filename + (extension && !extension.startsWith(".") ? `.${extension}` : "");
+	}
+
+	modifyPathToUrl(dir, filename) {
+		return "/" + path.join(dir, filename).split(path.sep).join("/");
+	}
+
+	async writeBundle(content, type, writeToFileSystem) {
+		// do not write a bundle, do not return a file name is content is empty
+		if(!content) {
+			return;
+		}
+
+		let dir = path.join(this.outputDirectory, this.bundleDirectory);
+		let filenameHash = await this.getFilenameHash(content);
+		let filename = this.getFilename(filenameHash, this.fileExtension || type);
+
+		if(writeToFileSystem) {
+			let fullPath = path.join(dir, filename);
+
+			// no duplicate writes, this may be improved with a fs exists check, but it would only save the first write
+			if(!writingCache.has(fullPath)) {
+				writingCache.add(fullPath);
+
+				if(!directoryExistsCache[dir]) {
+					fs.mkdirSync(dir, { recursive: true });
+					directoryExistsCache[dir] = true;
+				}
+
+				debug("Writing bundle %o", fullPath);
+				fs.writeFileSync(fullPath, content);
+			}
+		}
+
+		return this.modifyPathToUrl(this.bundleDirectory, filename);
+	}
+}
+
+export { BundleFileOutput };