feat: finish commit composer actions

[ruru-m07]

Summary

• wire up empty commits, amend-last-commit, and searchable co-author selection
• preserve repository-scoped drafts and trailers across amend/rebase flows while guarding stale HEADs, repository switches, conflicts, and concurrent Git mutations
• replace inert or invalid actions with state-aware controls and add frontend/Rust regression coverage

Testing

• make verify
• frontend tests (107 passed)
• focused commit integration tests (26/26 passed)
• focused rebase tests (12/12 passed)
• typechecks, production build, Clippy, Rust formatting, and diff checks

Closes RURU-56.

Summary by CodeRabbit

• New Features

  • Added amend-commit mode with safeguards against changing an unexpected commit.
  • Added empty-commit creation with confirmation.
  • Added co-author selection, deduplication, and preservation in commit messages.
  • Added commit-author suggestions based on repository history and configuration.

• Bug Fixes

  • Improved rebase commit-message and conflict-resolution reliability.
  • Prevented stale drafts from overwriting newer repository or rebase changes.
  • Improved detection of unresolved conflicts in certain repository states.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: 0ac5eaff-4d81-496b-b23d-63c515f7c322

📥 Commits

Reviewing files that changed from the base of the PR and between a0da433 and c53f559.

📒 Files selected for processing (23)

• apps/desktop/src-tauri/src/commands/commit.rs
• apps/desktop/src-tauri/src/commands/rebase.rs
• apps/desktop/src-tauri/src/lib.rs
• apps/desktop/src/features/git/components/write-commit-box.tsx
• apps/desktop/src/features/git/rebase/rebase-actions-bar.tsx
• apps/desktop/src/hooks/use-rebase.ts
• apps/desktop/src/hooks/use-repository.ts
• apps/desktop/src/state/domains/repository-state.ts
• apps/desktop/src/store/use-commit-draft-store.ts
• apps/desktop/tests/rebase-draft-transitions.test.tsx
• apps/desktop/tests/write-commit-box.test.tsx
• crates/git/parsers/commit.rs
• crates/git/runner.rs
• crates/git/service/commit.rs
• crates/git/service/graph.rs
• crates/git/service/operation.rs
• crates/git/service/rebase.rs
• crates/git/service/rebase_tests.rs
• crates/git/tests/commit_service.rs
• packages/commands/src/.typecache
• packages/commands/src/commands.ts
• packages/commands/src/index.ts
• packages/commands/src/types.ts

Included review availability: Your plan provides up to 2 included reviews per hour; 0 remain after this review.

---

📝 Walkthrough

Walkthrough

The change adds create, empty, and amend commit actions with co-author support. It adds commit-author lookup and commit validation. Git command transactions now coordinate commit and rebase operations. Rebase draft handling preserves newer drafts during asynchronous operations.

Changes

Commit and rebase workflows

Layer / File(s)	Summary
Commit contracts and author lookup apps/desktop/src-tauri/..., packages/commands/src/..., apps/desktop/src/hooks/..., apps/desktop/src/state/...	Commit commands accept amend parameters. A commit_authors command, binding, cache method, and query hook are added. Generated command schemas are regenerated.
Draft state and commit actions apps/desktop/src/store/use-commit-draft-store.ts, apps/desktop/src/features/git/components/write-commit-box.tsx	The draft stores co-authors and amend snapshots. The commit box supports create, empty, and amend actions, trailer editing, availability checks, confirmation, and amend cancellation.
Commit validation and amend execution crates/git/service/commit.rs, crates/git/parsers/commit.rs, crates/git/service/graph.rs, crates/git/service/operation.rs, crates/git/tests/commit_service.rs	The service validates commit requests and repository operations, checks expected HEAD values, executes amend and empty commits, discovers authors, and preserves Git trailers. Parser logic is shared and accepts case-insensitive co-author labels.
Repository transactions for rebase operations crates/git/runner.rs, crates/git/service/rebase.rs, apps/desktop/src-tauri/src/commands/rebase.rs, crates/git/service/rebase_tests.rs	Git command transactions hold the repository lock across command sequences. Rebase mutations use the transaction, and asynchronous rebase service calls are awaited.
Rebase draft preservation and validation apps/desktop/src/features/git/rebase/rebase-actions-bar.tsx, apps/desktop/src/hooks/use-rebase.ts, apps/desktop/tests/*	Rebase actions clear drafts only when their repository and autofill identities are unchanged. Rebase start refreshes commit data. Tests cover action availability, amend flows, co-authors, and asynchronous draft transitions.

Priority: ⬇️ Low

Estimated code review effort: 4 (Complex) | ~60 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant WriteCommitBox
  participant useCreateCommit
  participant CommitService
  participant GitCommandTransaction
  participant GitRepository
  WriteCommitBox->>useCreateCommit: submit commit action
  useCreateCommit->>CommitService: create_commit metadata and amend parameters
  CommitService->>GitCommandTransaction: acquire repository transaction
  CommitService->>GitRepository: validate operation and expected HEAD
  CommitService->>GitCommandTransaction: run commit command
  GitCommandTransaction-->>CommitService: return commit result
  CommitService-->>useCreateCommit: return new HEAD
  useCreateCommit-->>WriteCommitBox: invalidate repository state

Loading

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 29.89% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 174 functions across 22 files. (1 skipped…	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: completing commit composer actions for empty commits, amend commits, and related controls.
Description check	✅ Passed	The description explains what changed, why it changed, how it was tested, and links the related issue. It is complete enough for review, although it uses a Linear “Closes” link instead of the template…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 29.89% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 174 functions across 22 files. (1 skipped: 1 unsupported.)

• Fix all pre-merge checks with AI

✨ Finishing Touches 💡 1

📝 Generate docstrings 💡

• Commit to this branch
• Create a new PR

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{A rabbit trims trailers neat
And stores each co-author’s seat
Amend guards the moving head
Rebase drafts stay where they’re led
Locked commands hop in time
Commits land with messages prime}

_{Comment @coderabbitai help to get the list of available commands.}

[cloudflare-workers-and-pages]

Deploying gitru with    Cloudflare Pages

Latest commit:	c53f559
Status:	✅  Deploy successful!
Preview URL:	https://ff7b9d13.gitru.pages.dev
Branch Preview URL:	https://ruru-ruru-56-finish-commit-c.gitru.pages.dev

View logs