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feat: download code blocks as files - #1672
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🟡 Changes recommended
The language-index cache prevents retries after a transient import failure, and filtering fence tokens causes known languages such as c++ and c# to download with incorrect .txt extensions.
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pnpm-lock.yaml: Generated file
What changed in this PR
Adds file downloads to code blocks throughout the chat interface, alongside the existing copy action.
Changes:
- Resolves filenames from fence titles and language metadata, with sanitization and lazy-loaded Linguist data.
- Adds a download button with translated labels and error messages in six locales.
- Documents filename rules and adds unit coverage for resolution and sanitization.
| File | Description |
|---|---|
pnpm-lock.yaml |
Locks the Linguist dependency. |
docs/concepts/README.md |
Links the download concept guide. |
docs/concepts/code-block-download.md |
Documents download behavior and filename rules. |
apps/chat-bot/src/utils/code-blocks.ts |
Adds filename resolution and sanitization. |
apps/chat-bot/src/utils/code-blocks.test.ts |
Tests filename rules, aliases, and sanitization. |
apps/chat-bot/src/components/chat/markdown-code.tsx |
Places the download action beside copy. |
apps/chat-bot/src/components/chat/download-code-button.tsx |
Implements file downloads and error feedback. |
apps/chat-bot/package.json |
Adds the pinned Linguist dependency. |
apps/chat-bot/messages/ru.json |
Adds Russian download translations. |
apps/chat-bot/messages/it.json |
Adds Italian download translations. |
apps/chat-bot/messages/fr.json |
Adds French download translations. |
apps/chat-bot/messages/en.json |
Adds English download translations. |
apps/chat-bot/messages/de.json |
Adds German download translations. |
apps/chat-bot/messages/ar.json |
Adds Arabic download translations. |
Review effort: Balanced
Playwright Smart ReporterPassed: 40 of 40 tests passed.
Baseline run: Slowest tests
|
Add a download button next to the copy button of code blocks. The file name is the fence title if it is a known file name, otherwise the title or "code" plus the extension of the fence language. Extensions, file names and aliases come from linguist-languages, loaded on first use. Browsers already sanitize download names, so only the length is capped in bytes (Chromium silently drops longer names). The Blob uses application/octet-stream so Chromium keeps extension-less names like Dockerfile. Co-authored-by: opencode-agent[bot] <opencode-agent[bot]@users.noreply.github.com>
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Adds a download button to code blocks, next to the copy button. It saves the block text as a file.
titleif it is a known file name (hello.py,Dockerfile), otherwise the title plus the extension of the fence language (Sortierfunktion.py). Without a title it iscode.<ext>, orcode.txtfor an unknown language.linguist-languages(GitHub Linguist data, no dependencies, loaded with a dynamic import on the first download). No hand-written lists in the code.<a download>names (checked in Chromium and Firefox). Only the length is capped in bytes, because Chromium silently saves nothing above ~245 bytes.application/octet-stream, because Chromium appends.txtto extension-less names likeDockerfilefortext/plain.MarkdownCode, so it shows everywhereMarkdownDisplayis used. The system prompt is unchanged.docs/concepts/code-block-download.md.Checked in the browser: the downloads are
hello.py,Sortierfunktion.py,Dockerfileandcode.shwith the exact block content.🤖 Written by AI under human supervision.