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Add conflict resolution callbacks to parallel execution UI#281

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subsy merged 8 commits intomainfrom
claude/investigate-issue-275-MLs4F
Feb 4, 2026
Merged

Add conflict resolution callbacks to parallel execution UI#281
subsy merged 8 commits intomainfrom
claude/investigate-issue-275-MLs4F

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@subsy subsy commented Feb 4, 2026

Summary

This PR adds support for AI-driven merge conflict resolution in the parallel execution UI by introducing three new callback handlers that allow users to accept or reject AI-generated conflict resolutions.

Key Changes

  • Added three new callback props to RunAppWrapper and RunApp components:

    • onConflictAbort: Aborts conflict resolution and rolls back the merge
    • onConflictAccept: Accepts AI resolution for a specific file
    • onConflictAcceptAll: Accepts all AI resolutions at once
  • Implemented keyboard shortcuts in the conflict panel:

    • a: Accept AI resolution for the currently selected file
    • Shift+A: Accept all AI resolutions
    • r: Reject/abort conflict resolution
    • Escape: Abort and close the conflict panel
  • Added conflict state management in runParallelWithTui:

    • onConflictAbort stops the executor and clears all conflict-related state
    • onConflictAccept validates that the AI resolution was successful
    • onConflictAcceptAll allows users to proceed with all resolutions

Implementation Details

  • The conflict resolution callbacks are wired through the component hierarchy from RunAppWrapperRunApp → keyboard event handlers
  • The abort handler properly cleans up parallel executor state and conflict tracking variables
  • Accept handlers trigger UI re-renders to reflect user actions
  • Keyboard event handling distinguishes between regular and shift-modified key presses for the accept-all functionality

https://claude.ai/code/session_01Axg7f7pg21dXwPBFiG75e6

Summary by CodeRabbit

  • New Features

    • Keyboard-driven conflict resolution: Escape to abort, 'a' to accept the selected file, Shift+A to accept all, and j/k or arrow keys to navigate.
    • New hooks/callbacks to abort, accept single file, or accept-all during parallel runs.
  • Tests

    • Extensive unit and integration-style tests for conflict helpers, keyboard interactions and multi-conflict scenarios.
  • Chores

    • CI updated to run the new test batch and publish coverage.

The ConflictResolutionPanel displayed keyboard shortcuts (a, r, A, Esc)
but they were not implemented in the keyboard handler. This commit:

- Adds conflict resolution callbacks to RunAppProps interface:
  - onConflictAbort: Abort conflict resolution and rollback
  - onConflictAccept: Accept AI resolution for a specific file
  - onConflictAcceptAll: Accept all AI resolutions
- Implements keyboard handlers in RunApp.tsx:
  - 'a': Accept AI resolution for selected file
  - 'r': Reject/abort conflict resolution
  - 'A' (shift+a): Accept all AI resolutions
  - 'Esc': Abort and rollback (was only hiding panel before)
- Wires up callbacks in run.tsx parallel execution to actually
  stop the executor and clear conflict state on abort

Fixes #275

https://claude.ai/code/session_01Axg7f7pg21dXwPBFiG75e6
Add tests for conflict resolution keyboard handling:
- Callback type signatures (onConflictAbort, onConflictAccept, onConflictAcceptAll)
- Parallel state conflict management (state structure, clearing on abort)
- Keyboard handler behavior (escape, a, r, shift+A, navigation keys)

These tests verify the callback implementations and keyboard handler logic
that was added in the previous commit to fix #275.

https://claude.ai/code/session_01Axg7f7pg21dXwPBFiG75e6
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ralph-tui Ignored Ignored Preview Feb 4, 2026 7:10pm

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coderabbitai bot commented Feb 4, 2026

Walkthrough

Adds conflict-resolution helpers and three optional conflict callbacks to the Run command API and UI, wires them through RunAppWrapper/ParallelRunAppWrapper and RunApp, implements keyboard handlers for conflict actions, adds extensive unit tests, and updates CI to include the new test coverage artifact.

Changes

Cohort / File(s) Summary
Tests
src/commands/run.test.ts
Adds ~302 lines of unit tests and helpers covering conflict-resolution utilities, keyboard-driven conflict interactions, parallel conflict scenarios, and integration-like conflict pipelines.
API & Wrapper
src/commands/run.tsx
Introduces ParallelConflictState, clearConflictState, findResolutionByPath, areAllConflictsResolved; extends RunAppWrapperProps with onConflictAbort?, onConflictAccept?, onConflictAcceptAll?; wires and implements abort/accept/accept-all handlers in the parallel run path.
TUI Component
src/tui/components/RunApp.tsx
Extends RunAppProps with three conflict callbacks and wires keyboard handling: Escape → onConflictAbort, aonConflictAccept (selected file), Shift+A → onConflictAcceptAll; updates panel visibility and rerender flows.
CI
.github/workflows/ci.yml
Adds a test batch/coverage part for run.test.ts and updates Codecov upload to include the new coverage artifact.

Sequence Diagram

sequenceDiagram
    actor User
    participant KB as "Keyboard Handler"
    participant UI as "RunApp (TUI)"
    participant CB as "RunAppWrapper / Callbacks"
    participant Exec as "Parallel Executor / ParallelConflictState"

    User->>KB: Press key (Escape / 'a' / Shift+A / j/k)
    KB->>UI: Deliver key event (conflict panel active)
    UI->>CB: Invoke callback (onConflictAbort/onConflictAccept/onConflictAcceptAll)
    alt onConflictAbort
        CB->>Exec: stop executor, clear conflict state
        Exec-->>CB: ack
        CB-->>UI: update / hide panel
    else onConflictAccept (filePath)
        CB->>Exec: find/apply resolution for filePath
        Exec-->>CB: result
        CB-->>UI: rerender/update selection
    else onConflictAcceptAll
        CB->>Exec: accept all / continue AI resolution
        Exec-->>CB: progress
        CB-->>UI: hide panel / update
    else navigation (j/k)
        UI->>UI: change selected index
    end
    UI-->>User: updated UI / panel state
Loading

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~45 minutes

🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title accurately and concisely summarizes the primary change: adding conflict resolution callbacks to the parallel execution UI, which is the main focus of the PR.
Docstring Coverage ✅ Passed Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.

✨ Finishing touches
  • 📝 Generate docstrings
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Post copyable unit tests in a comment
  • Commit unit tests in branch claude/investigate-issue-275-MLs4F

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codecov bot commented Feb 4, 2026

Codecov Report

❌ Patch coverage is 40.38462% with 31 lines in your changes missing coverage. Please review.
✅ Project coverage is 43.20%. Comparing base (f06ce6f) to head (c29ba43).
⚠️ Report is 9 commits behind head on main.

Files with missing lines Patch % Lines
src/commands/run.tsx 40.38% 31 Missing ⚠️
Additional details and impacted files

Impacted file tree graph

@@            Coverage Diff             @@
##             main     #281      +/-   ##
==========================================
- Coverage   43.70%   43.20%   -0.50%     
==========================================
  Files          94       94              
  Lines       29022    29607     +585     
==========================================
+ Hits        12684    12792     +108     
- Misses      16338    16815     +477     
Files with missing lines Coverage Δ
src/commands/run.tsx 10.82% <40.38%> (+3.54%) ⬆️

... and 5 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

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Actionable comments posted: 0

Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (2)
src/tui/components/RunApp.tsx (2)

1489-1511: ⚠️ Potential issue | 🟠 Major

handleKeyboard can read a stale conflict selection.

The callback reads conflictSelectedIndex and the new onConflict* props but they aren’t in the dependency list. After navigating conflicts with j/k, pressing a may still accept the original file. Add those dependencies (or move them into refs) to keep the handler fresh.

Suggested fix
-    [displayedTasks, selectedIndex, status, engine, onQuit, viewMode, iterations, iterationSelectedIndex, iterationHistoryLength, onIterationDrillDown, showInterruptDialog, onInterruptConfirm, onInterruptCancel, showHelp, showSettings, showQuitDialog, showKillDialog, showEpicLoader, showRemoteManagement, onStart, storedConfig, onSaveSettings, onLoadEpics, subagentDetailLevel, onSubagentPanelVisibilityChange, currentIteration, maxIterations, renderer, detailsViewMode, subagentPanelVisible, focusedPane, navigateSubagentTree, instanceTabs, selectedTabIndex, onSelectTab, isViewingRemote, displayStatus, instanceManager, isParallelMode, parallelWorkers, parallelConflicts, showConflictPanel, onParallelKill, onParallelPause, onParallelResume, onParallelStart, parallelDerivedStatus]
+    [displayedTasks, selectedIndex, status, engine, onQuit, viewMode, iterations, iterationSelectedIndex, iterationHistoryLength, onIterationDrillDown, showInterruptDialog, onInterruptConfirm, onInterruptCancel, showHelp, showSettings, showQuitDialog, showKillDialog, showEpicLoader, showRemoteManagement, onStart, storedConfig, onSaveSettings, onLoadEpics, subagentDetailLevel, onSubagentPanelVisibilityChange, currentIteration, maxIterations, renderer, detailsViewMode, subagentPanelVisible, focusedPane, navigateSubagentTree, instanceTabs, selectedTabIndex, onSelectTab, isViewingRemote, displayStatus, instanceManager, isParallelMode, parallelWorkers, parallelConflicts, showConflictPanel, conflictSelectedIndex, onConflictAbort, onConflictAccept, onConflictAcceptAll, onParallelKill, onParallelPause, onParallelResume, onParallelStart, parallelDerivedStatus]

Also applies to: 2071-2071


1489-1527: ⚠️ Potential issue | 🟠 Major

Move accept-all check before the switch statement to prevent double-invocation on Shift+A.

When user presses Shift+A, the current code executes both the single-accept (case 'a') and accept-all branches because key.name === 'a' remains true whilst key.shift is set. Check for Shift+A upfront using key.sequence === 'A' (consistent with established patterns in this codebase for Shift+letter combinations) and return early to prevent the case statement from being reached.

Suggested fix
      if (showConflictPanel) {
+       const isAcceptAll = key.sequence === 'A' || (key.shift && key.name === 'a');
+       if (isAcceptAll) {
+         onConflictAcceptAll?.();
+         setShowConflictPanel(false);
+         return;
+       }
        switch (key.name) {
          case 'escape':
            // Abort conflict resolution and rollback
            if (onConflictAbort) {
              onConflictAbort().catch(() => {});
            }
            setShowConflictPanel(false);
            break;
          case 'j':
          case 'down':
            setConflictSelectedIndex((prev) => Math.min(prev + 1, parallelConflicts.length - 1));
            break;
          case 'k':
          case 'up':
            setConflictSelectedIndex((prev) => Math.max(prev - 1, 0));
            break;
          case 'a':
            // Accept AI resolution for the selected file
            if (onConflictAccept && parallelConflicts[conflictSelectedIndex]) {
              onConflictAccept(parallelConflicts[conflictSelectedIndex].filePath);
            }
            break;
          case 'r':
            // Reject - abort conflict resolution for this merge
            if (onConflictAbort) {
              onConflictAbort().catch(() => {});
            }
            setShowConflictPanel(false);
            break;
         }
-        // Handle shift+A for Accept All (key.shift is true when shift is held)
-        if (key.shift && key.name === 'a') {
-          if (onConflictAcceptAll) {
-            onConflictAcceptAll();
-          }
-          setShowConflictPanel(false);
-        }
         return;
       }

claude and others added 3 commits February 4, 2026 18:36
The conflict resolution tests in src/commands/run.test.ts were not
being run in CI. This adds:
- A dedicated test batch for run.test.ts
- Coverage reporting via run.lcov uploaded to Codecov

https://claude.ai/code/session_01Axg7f7pg21dXwPBFiG75e6
Extract conflict resolution logic into exported helper functions that
can be unit tested with actual coverage:

- clearConflictState(): Clears all conflict-related state fields
- findResolutionByPath(): Finds a resolution result by file path
- areAllConflictsResolved(): Checks if all conflicts are resolved

Update tests to import and test these real functions instead of
simulating the behavior. This provides actual code coverage for
the conflict resolution logic.

Test results: 51 pass, 0 fail
Coverage: run.tsx now shows 45.45% function coverage

https://claude.ai/code/session_01Axg7f7pg21dXwPBFiG75e6
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Actionable comments posted: 1

🤖 Fix all issues with AI agents
In `@src/commands/run.tsx`:
- Around line 1882-1901: The onConflictAbort handler currently awaits
parallelExecutor.stop() but doesn't make cleanup explicit; note that execute()
in parallel/index.ts always triggers await this.cleanup() in its finally block,
so add a brief comment in the onConflictAbort block referencing that guarantee
(mention execute()'s finally calling cleanup()) or, if you need synchronous
reset semantics, call an explicit method such as parallelExecutor.reset() (or
similar) after stop() to synchronously clear state; update the onConflictAbort
comment to state which approach you chose so future readers know cleanup is
handled.

Address PR feedback: Add comment explaining that full cleanup
(worktrees, git state) is guaranteed by execute()'s finally block
calling this.cleanup(). UI state is cleared synchronously for
immediate feedback.

https://claude.ai/code/session_01Axg7f7pg21dXwPBFiG75e6
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Actionable comments posted: 1

🤖 Fix all issues with AI agents
In `@src/commands/run.tsx`:
- Around line 1882-1903: The onConflictAbort handler must always clear the UI
state even if parallelExecutor.stop() rejects; wrap the await
parallelExecutor.stop() call in a try/finally (or use try { await
parallelExecutor.stop(); } finally { clearConflictState(parallelState);
triggerRerender?.(); }) so clearConflictState(parallelState) and
triggerRerender?.() run regardless of errors from parallelExecutor.stop()—update
the onConflictAbort function accordingly.
🧹 Nitpick comments (1)
src/commands/run.tsx (1)

579-641: Prefer the most recent resolution when duplicates exist.

If a file is re-resolved, findResolutionByPath/areAllConflictsResolved will pick the earliest entry, which can mask a later success. Consider using the most recent match (or keying by filePath) so retries are honoured.

♻️ Proposed refactor
 export function findResolutionByPath(
   resolutions: ConflictResolutionResult[],
   filePath: string
 ): ConflictResolutionResult | undefined {
-  return resolutions.find((r) => r.filePath === filePath);
+  for (let i = resolutions.length - 1; i >= 0; i -= 1) {
+    const resolution = resolutions[i];
+    if (resolution.filePath === filePath) return resolution;
+  }
+  return undefined;
 }
@@
 export function areAllConflictsResolved(
   conflicts: FileConflict[],
   resolutions: ConflictResolutionResult[]
 ): boolean {
   if (conflicts.length === 0) return true;
   if (resolutions.length < conflicts.length) return false;
   return conflicts.every((conflict) => {
-    const resolution = resolutions.find((r) => r.filePath === conflict.filePath);
+    const resolution = findResolutionByPath(resolutions, conflict.filePath);
     return resolution?.success === true;
   });
 }

Wrap parallelExecutor.stop() in try/finally to guarantee that
clearConflictState() and triggerRerender() run regardless of
whether stop() succeeds or throws an error.

https://claude.ai/code/session_01Axg7f7pg21dXwPBFiG75e6
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Actionable comments posted: 0

Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (1)
src/tui/components/RunApp.tsx (1)

1494-1527: ⚠️ Potential issue | 🟡 Minor

Move Shift+A check before the switch statement with an early return to prevent dual callback execution.

When Shift+A is pressed, key.name === 'a' and key.shift === true both match, so the case 'a' block fires (calling onConflictAccept() on the current file), then the if statement below the switch also fires (calling onConflictAcceptAll()). This causes both single-file and accept-all callbacks to execute unintentionally. Detect Shift+A first before entering the switch, and return early to prevent the single-file accept from triggering.

🛠️ Suggested guard
      if (showConflictPanel) {
+       // Handle Shift+A first so it doesn't also trigger single-file accept.
+       if (key.shift && key.name === 'a') {
+         if (onConflictAcceptAll) {
+           onConflictAcceptAll();
+         }
+         setShowConflictPanel(false);
+         return;
+       }
        switch (key.name) {
          case 'escape':
             // Abort conflict resolution and rollback
             if (onConflictAbort) {
               onConflictAbort().catch(() => {});
             }
             setShowConflictPanel(false);
             break;
           case 'j':
           case 'down':
             setConflictSelectedIndex((prev) => Math.min(prev + 1, parallelConflicts.length - 1));
             break;
           case 'k':
           case 'up':
             setConflictSelectedIndex((prev) => Math.max(prev - 1, 0));
             break;
           case 'a':
             // Accept AI resolution for the selected file
             if (onConflictAccept && parallelConflicts[conflictSelectedIndex]) {
               onConflictAccept(parallelConflicts[conflictSelectedIndex].filePath);
             }
             break;
           case 'r':
             // Reject - abort conflict resolution for this merge
             if (onConflictAbort) {
               onConflictAbort().catch(() => {});
             }
             setShowConflictPanel(false);
             break;
         }
-        // Handle shift+A for Accept All (key.shift is true when shift is held)
-        if (key.shift && key.name === 'a') {
-          if (onConflictAcceptAll) {
-            onConflictAcceptAll();
-          }
-          setShowConflictPanel(false);
-        }
         return;
       }

@subsy subsy merged commit fb36c59 into main Feb 4, 2026
8 of 9 checks passed
@subsy subsy deleted the claude/investigate-issue-275-MLs4F branch February 4, 2026 19:16
sakaman pushed a commit to sakaman/ralph-tui that referenced this pull request Feb 15, 2026
…MLs4F

Add conflict resolution callbacks to parallel execution UI
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