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fix: codebase preview in standalone mode

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- Fix standalone bundle path lookup in worker to not add redundant file
  extension (the path already contains .tar/.esm suffixes from the API)
- Fix CLI preview tar bundle handling to preserve binary data correctly
  (was using btoa(blob.text()) which corrupted binary tar data)
- Add integration tests for script/flow preview commands covering:
  - Regular scripts (non-codebase)
  - Codebase scripts (CJS and ESM formats)
  - Codebase scripts with assets (tar bundles)
  - Flow preview

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Ruben Fiszel
2026-01-28 22:54:38 +00:00
parent f955496dc1
commit c59699acd7
3 changed files with 357 additions and 10 deletions
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cli/src/commands/script/script.ts
+8 -7
View File
@@ -1125,7 +1125,7 @@ async function preview(
const codebase =
language == "bun" ? findCodebase(filePath, codebases) : undefined;
let bundledContent: string | undefined = undefined;
let bundledContent: string | Blob | undefined = undefined;
let isTar = false;
if (codebase) {
@@ -1179,8 +1179,7 @@ async function preview(
const fil = new File([file.contents as any], file.path.substring(1));
tarball.append(fil);
}
const blob = await streamToBlob(tarball.stream());
bundledContent = btoa(await blob.text());
bundledContent = await streamToBlob(tarball.stream());
isTar = true;
} else if (Array.isArray(codebase.assets) && codebase.assets.length > 0) {
// Handle assets
@@ -1196,14 +1195,14 @@ async function preview(
const file = new File([blob], asset.to);
tarball.append(file);
}
const blob = await streamToBlob(tarball.stream());
bundledContent = btoa(await blob.text());
bundledContent = await streamToBlob(tarball.stream());
isTar = true;
}
if (!opts.silent) {
const size = typeof bundledContent === "string" ? bundledContent.length : bundledContent.size;
log.info(
`Bundled ${filePath}: ${(bundledContent.length / 1024).toFixed(0)}kB (${(
`Bundled ${filePath}: ${(size / 1024).toFixed(0)}kB (${(
endTime - startTime
).toFixed(0)}ms)`
);
@@ -1229,7 +1228,9 @@ async function preview(
form.append("preview", JSON.stringify(previewPayload));
form.append(
"file",
new Blob([bundledContent], { type: "application/javascript" })
typeof bundledContent === "string"
? new Blob([bundledContent], { type: "application/javascript" })
: bundledContent
);
const url =