Sync Upstream

Synchronize nomicon-zh-Hans (Chinese translation) with upstream rust-lang/nomicon repository.

Workflow

Step 1: Extract Current Translation Base

Extract the commit hash from src/intro.md:

目前翻译基于 commit：<commit_hash>，基于时间：<date>。

Use regex pattern: 目前翻译基于 commit：([a-f0-9]+)，基于时间：(\d{4}/\d{2}/\d{2})。

Step 2: Fetch Upstream Latest Commit

Get the latest commit from upstream:

gh api repos/rust-lang/nomicon/commits/main --jq '.sha'

Compare with the extracted commit hash. If identical, report "Already up to date" and exit.

Step 3: Get Changed Files

List files changed between the two commits:

gh api "repos/rust-lang/nomicon/compare/<base_commit>...<latest_commit>" --jq '.files[] | select(.filename | startswith("src/")) | {filename, status, patch}'

Step 4: Process Each Changed File

For each changed file in src/:

1. •Fetch the new English content from upstream
2. •Read the corresponding Chinese file from local repository
3. •Translate the changes maintaining:
   • •Existing translation style and terminology
   • •Markdown formatting
   • •Code blocks unchanged (only translate comments if any)
   • •Links and references preserved
4. •Apply the translation to local file

Translation guidelines:

• •Keep technical terms consistent with existing translations
• •Preserve all code examples exactly
• •Only translate prose content, not code
• •Maintain the same file structure

Step 5: Update intro.md Metadata

Update the commit and date line in src/intro.md:

目前翻译基于 commit：<new_commit>，基于时间：<current_date>。

Date format: YYYY/MM/DD

Step 6: Output Summary

Provide a summary including:

• •Previous commit vs new commit
• •List of files updated with change type (added/modified/deleted)
• •Brief description of significant changes
• •Reminder to review changes before committing

Example Output

## Sync Summary

**Upstream sync completed**

- Previous: 5b3a9d084cbc64e54da87e3eec7c7faae0e48ba9 (2026/01/02)
- Current: abc123def456... (2026/01/29)

### Changed Files (3)

| File | Status | Description |
|------|--------|-------------|
| src/intro.md | modified | Updated warning text |
| src/new-chapter.md | added | New chapter on XYZ |
| src/old-file.md | deleted | Removed deprecated content |

### Next Steps
1. Review the translated changes
2. Run `mdbook build` to verify
3. Commit with message: "sync: update to upstream commit abc123"