Refactor locked issue error handling into shared helper

[Copilot]

The status-comment handler was failing workflows when attempting to update comments on locked issues. The reaction handler already handled this case correctly by detecting 403 errors with "locked" messages and silently ignoring them.

Changes

• Extracted isLockedError() helper (error_helpers.cjs)

  • Detects 403 status + "locked"/"Lock conversation" message pattern
  • Consolidates duplicate logic from add_reaction.cjs

• Updated notify_comment_error.cjs

  • Added locked error handling to append-only comment creation path
  • Added locked error handling to comment update path
  • Both now log info and return gracefully instead of warning/failing

• Updated add_reaction.cjs

  • Replaced inline detection with isLockedError() call

Example

// Before: inline detection in add_reaction.cjs
const is403Error = error && typeof error === "object" && "status" in error && error.status === 403;
const hasLockedMessage = errorMessage && (errorMessage.includes("locked") || errorMessage.includes("Lock conversation"));
if (is403Error && hasLockedMessage) { /* ... */ }

// After: shared helper
if (isLockedError(error)) {
  core.info(`Cannot add reaction: resource is locked (this is expected and not an error)`);
  return;
}

When operations fail on locked resources, workflows now continue successfully with informational logging instead of warnings or failures.

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Pull request overview

This PR refactors locked issue error handling by extracting a shared isLockedError() helper function to eliminate duplicate logic across multiple scripts. When GitHub API operations fail on locked issues/PRs/discussions (403 status with "locked" message), the workflows now consistently log informational messages and continue successfully instead of failing or warning.

Changes:

• Extracted isLockedError() helper into error_helpers.cjs to detect 403 errors with "locked"/"Lock conversation" messages
• Updated notify_comment_error.cjs to handle locked errors gracefully in both append-only and update comment paths
• Refactored add_reaction.cjs to use the shared helper instead of inline detection

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
actions/setup/js/error_helpers.cjs	Adds isLockedError() helper function to detect locked resource errors (403 + "locked" message)
actions/setup/js/error_helpers.test.cjs	Adds comprehensive test suite for isLockedError() helper covering various scenarios
actions/setup/js/notify_comment_error.cjs	Adds locked error handling to both append-only comment creation and comment update paths using isLockedError()
actions/setup/js/add_reaction.cjs	Replaces inline locked error detection with shared isLockedError() helper

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[Copilot]

Test description and expectation are contradictory. The test is named "should return false for 403 error with only partial match" and the comment on line 88 states "Contains 'unlocked' which includes 'locked' substring", suggesting this should return false (not a locked error). However, the expectation on line 89 is expect(isLockedError(error)).toBe(true), which expects true.

The message "This issue has been unlocked" contains "locked" as a substring but indicates the resource is NOT locked. The function should return false for this case to avoid false positives. Change the expectation to toBe(false) to match the test description.

Suggested change

	expect(isLockedError(error)).toBe(true);
	expect(isLockedError(error)).toBe(false);

[Copilot]

The new locked error handling in notify_comment_error.cjs (lines 250-254 and 311-315) is not covered by tests. The file notify_comment_error.test.cjs only has a generic error handling test that doesn't specifically test locked resource errors.

Consider adding test cases similar to those in add_reaction.test.cjs (lines 393-426) to verify:

1. Locked errors (403 + "locked" message) are silently ignored with info logging
2. Non-locked 403 errors still produce warnings
3. Locked messages with non-403 status still produce warnings