initial commit

bundle.ts

@@ -0,0 +1,59 @@
+import { encodeBase64 } from 'https://deno.land/std@0.224.0/encoding/base64.ts';
+import { ensureFile } from 'https://deno.land/std@0.224.0/fs/mod.ts';
+
+/**
+ * { [path]: base64EncodedContent }
+ */
+type StaticFilesRecord = Record<string, string>;
+
+/**
+ * Traverse a directory recursively, adding every base64 encoded file content to the record.
+ * 
+ * @param staticFileRecord the record in which to add base64 encoded file content 
+ * @param root the path of the root directory for traversal, that should not be included in the record file path
+ * @param subdir the current subdir to traverse
+ */
+async function traverse(
+  staticFileRecord: StaticFilesRecord,
+  root: string,
+  subdir: string = '',
+) {
+  for await (const dirEntry of Deno.readDir(`${root}/${subdir}`)) {
+    const path = `${subdir}/${dirEntry.name}`.slice(1);
+    console.log(`encoding: ${path}`);
+    if (dirEntry.isDirectory) {
+      await traverse(staticFileRecord, root, `${subdir}/${dirEntry.name}`);
+    } else {
+      staticFileRecord[path] = encodeBase64(
+        await Deno.readFile(
+          `${root}/${subdir}/${dirEntry.name}`,
+        ),
+      );
+    }
+  }
+}
+
+/**
+ * Bundle all files of the given directory into a single json file at the given path.
+ * 
+ * @param sourceDir path of the directory to bundle 
+ * @param bundleFilePath path of the json file
+ */
+async function buildFromDir(
+  sourceDir: string,
+  bundleFilePath: string,
+) {
+  const staticFiles: StaticFilesRecord = {};
+  await traverse(staticFiles, sourceDir);
+
+  await ensureFile(bundleFilePath);
+  await Deno.writeTextFile(bundleFilePath, JSON.stringify(staticFiles));
+}
+
+if (Deno.args.length !== 2) {
+  console.error('Incorrect usage: Two parameters expected !');
+  console.error('<script> view-dist-directory json-bundle-file');
+  Deno.exit(1);
+}
+
+await buildFromDir(Deno.args[0], Deno.args[1]);