Files
Chenhe Gu 61b37d88fc Fix stale PR translation revert issue (#630)
* Fix stale PR translation revert issue

When PR A is created before PR B but PR B merges first, the translation
workflow for PR A was reverting all of PR B's changes. This happened because
the translation workflow used PR A's working directory state (which is a
snapshot from before PR B existed) rather than applying only PR A's changes.

Root cause:
- setup_translation_branch() for new branches did:
  checkout -b branch → reset --soft origin/main → reset
  This kept PR's working directory which could be stale

- For incremental branches, merge_docs_json_for_incremental_update() took
  the English section from PR HEAD, which was also stale for old PRs

Fix:
- For NEW branches: Create branch directly from origin/main (not from PR's
  working directory). This ensures we start with the latest state including
  all changes from PRs merged after this PR was created.

- For EXISTING branches: Merge main's docs.json structure with our
  translations (instead of taking EN section from stale PR)

- For BOTH: Selectively checkout only the files that the PR actually changed
  from PR's head, rather than bringing in the entire working directory.
  This prevents overwriting files from other PRs.

Example issue (PR #593):
- PR #593 only added one file
- Translation PR #611 tried to delete 11 files and revert massive docs.json changes
- This was because it used PR #593's stale state from before other PRs merged

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Fix: Use PR's docs.json for finding file positions in navigation

The initial fix had a side effect: since we start from main's docs.json,
and PR's new files aren't in main's English section yet, sync_docs_json_incremental()
couldn't find where to place new files in the translation navigation.

Fix: Add `reference_sha` parameter to sync_docs_json_incremental() that loads
PR's docs.json for finding file positions, while still modifying main's
translation sections. This ensures:
1. Main's docs.json structure is preserved (no reverts)
2. New files are found in PR's docs.json
3. Translations are added at the correct positions

This also removes the unused _apply_pr_english_section_to_main() method.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Fix EN section not updated when using reference_sha

When the translation branch starts from main, the PR's docs.json
structural changes (new file entries in EN section) were not being
incorporated. This caused the translation PR to have mismatched
navigation entries.

The fix now also updates the EN section of the working directory's
docs.json when processing added files found in the reference
docs.json (from the PR).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* Also remove deleted files from EN section in stale PR scenario

When processing deleted files, the sync now also removes them from the
EN section of docs.json. This is needed when the translation branch
starts from main, which may still have the deleted file entries.

Verified with comprehensive local testing covering 10 scenarios:
- Basic stale PR, multiple files, modifications, deletions
- Nested groups, new dropdowns, mixed operations
- Backward compatibility, incremental syncs, structure changes

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
2025-12-23 22:46:11 -08:00
..
2025-05-18 00:20:13 +08:00
2025-05-16 21:41:57 +08:00