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Merged
pelikhan merged 5 commits into from
Aug 4, 2026
+363 −31
Merged

Resolve PR review threads from review comment node IDs #50349

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8c1a18a
Initial plan
Copilot Aug 4, 2026
da13a54
Handle review comment IDs when resolving threads
Copilot Aug 4, 2026
0f04adb
Merge branch 'main' into copilot/deep-report-fix-resolve-pull-request…
github-actions[bot] Aug 4, 2026
457f3da
Fix: paginate comments within threads, remove id fallback, add tests
Copilot Aug 4, 2026
9bb4951
Merge branch 'main' into copilot/deep-report-fix-resolve-pull-request…
github-actions[bot] Aug 4, 2026
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191 changes: 168 additions & 23 deletions actions/setup/js/resolve_pr_review_thread.cjs
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Original file line number Diff line number Diff line change
Expand Up @@ -24,8 +24,9 @@ const HANDLER_TYPE = "resolve_pull_request_review_thread";
* @param {string} threadId - Review thread node ID (e.g., 'PRRT_kwDOABCD...')
* @returns {Promise<
* | {status: "missing"}
* | {status: "thread", prNumber: number, repoNameWithOwner: string|null, isResolved: boolean}
* | {status: "thread", threadId: string, prNumber: number, repoNameWithOwner: string|null, isResolved: boolean}
* | {status: "invalid_type", nodeType: string}
* | {status: "comment_without_thread"}
* >} Thread lookup result
*/
async function getThreadPullRequestInfo(github, threadId) {
Expand All @@ -34,6 +35,7 @@ async function getThreadPullRequestInfo(github, threadId) {
node(id: $threadId) {
__typename
... on PullRequestReviewThread {
id
isResolved
pullRequest {
number
Expand All @@ -42,6 +44,18 @@ async function getThreadPullRequestInfo(github, threadId) {
}
}
}
... on PullRequestReviewComment {
pullRequest {
number
repository {
name
nameWithOwner
owner {
login
}
}
}
}
}
}
`;
Expand All @@ -52,6 +66,9 @@ async function getThreadPullRequestInfo(github, threadId) {
if (!threadNode) {
return { status: "missing" };
}
if (threadNode.__typename === "PullRequestReviewComment") {
return findThreadInfoForReviewComment(github, threadId, threadNode);
}
if (threadNode.__typename !== "PullRequestReviewThread") {
return {
status: "invalid_type",
Expand All @@ -62,12 +79,130 @@ async function getThreadPullRequestInfo(github, threadId) {

return {

@github-actions github-actions Bot Aug 4, 2026

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[/diagnosing-bugs] threadNode.id || threadId — the id field is now explicitly selected in the GraphQL fragment, so the || threadId fallback silently masks any future schema regression where id is unexpectedly absent. Prefer asserting its presence explicitly.

💡 Suggestion 
if (!threadNode.id) {
  core.warning(`PullRequestReviewThread node returned without an id for input ${threadId}`);
  return { status: 'missing' };
}
return {
  status: 'thread',
  threadId: threadNode.id,
  ...
};

This makes the failure observable rather than silently using the input ID as the resolved ID.

@copilot please address this.

Copilot AI Aug 4, 2026

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Fixed. The fallback threadNode.id || threadId was removed. The code now checks if (!threadNode.id) and returns { status: "missing" } with a core.warning, making the absence observable rather than silently substituting the input ID.

status: "thread",
threadId: threadNode.id,
prNumber: pullRequest.number,
repoNameWithOwner: pullRequest.repository?.nameWithOwner ?? null,
isResolved: threadNode?.isResolved === true,
};
}

/**
* Resolve a PullRequestReviewComment node ID to its containing review thread.
* @param {any} github - GitHub GraphQL instance
* @param {string} commentId - Pull request review comment node ID (e.g., 'PRRC_kwDOABCD...')
* @param {any} commentNode - PullRequestReviewComment node returned by the initial lookup
* @returns {Promise<
* | {status: "thread", threadId: string, prNumber: number, repoNameWithOwner: string|null, isResolved: boolean}
* | {status: "comment_without_thread"}
* >}
*/
async function findThreadInfoForReviewComment(github, commentId, commentNode) {
const pullRequest = commentNode.pullRequest;
const repository = pullRequest?.repository;
const prNumber = pullRequest?.number;
const repoOwner = repository?.owner?.login;
const repoName = repository?.name;
const repoNameWithOwner = repository?.nameWithOwner ?? (repoOwner && repoName ? `${repoOwner}/${repoName}` : null);

if (!prNumber || !repoOwner || !repoName) {
return { status: "comment_without_thread" };
}

const threadListQuery = /* GraphQL */ `
query ($owner: String!, $repo: String!, $number: Int!, $cursor: String) {
repository(owner: $owner, name: $repo) {
pullRequest(number: $number) {
reviewThreads(first: 100, after: $cursor) {
pageInfo {
hasNextPage
endCursor
}
nodes {
id
isResolved
comments(first: 100) {
pageInfo {
hasNextPage
endCursor
}
nodes {
id
}
}
}
}
}
}
}
`;

const threadCommentsQuery = /* GraphQL */ `
query ($threadId: ID!, $cursor: String) {
node(id: $threadId) {
... on PullRequestReviewThread {
comments(first: 100, after: $cursor) {
pageInfo {
hasNextPage
endCursor
}
nodes {
id
}
}
}
}
}
`;

let threadCursor = null;
do {
const result = await github.graphql(threadListQuery, {
owner: repoOwner,
repo: repoName,
number: prNumber,
cursor: threadCursor,
});
const reviewThreads = result?.repository?.pullRequest?.reviewThreads;

for (const thread of reviewThreads?.nodes || []) {
// Check first page of comments for this thread
if ((thread.comments?.nodes || []).some(comment => comment?.id === commentId)) {
return {
status: "thread",
threadId: thread.id,
prNumber,
repoNameWithOwner,
isResolved: thread.isResolved === true,
};
}

// If there are more comment pages, paginate within this thread
let commentCursor = thread.comments?.pageInfo?.hasNextPage ? thread.comments.pageInfo.endCursor : null;
while (commentCursor) {
const commentResult = await github.graphql(threadCommentsQuery, {
threadId: thread.id,
cursor: commentCursor,
});
const commentsPage = commentResult?.node?.comments;
if ((commentsPage?.nodes || []).some(comment => comment?.id === commentId)) {
return {
status: "thread",
threadId: thread.id,
prNumber,
repoNameWithOwner,
isResolved: thread.isResolved === true,
};
}
commentCursor = commentsPage?.pageInfo?.hasNextPage ? commentsPage.pageInfo.endCursor : null;
}
}

threadCursor = reviewThreads?.pageInfo?.hasNextPage ? reviewThreads.pageInfo.endCursor : null;
} while (threadCursor);

return { status: "comment_without_thread" };
}

/**
* Resolve a pull request review thread using the GraphQL API.
* @param {any} github - GitHub GraphQL instance
Expand Down Expand Up @@ -199,30 +334,40 @@ async function main(config = {}) {
};
}

if (threadInfo.status === "comment_without_thread") {
return {
success: false,
error: `Could not find a PullRequestReviewThread containing review comment ${threadId}`,
};
}

if (threadInfo.status !== "thread") {
return {
success: false,
error: `thread_id must reference a PullRequestReviewThread node ID (PRRT_...); received ${threadInfo.nodeType} for ${threadId}`,
};
}

const { prNumber: threadPRNumber, repoNameWithOwner: threadRepo, isResolved } = threadInfo;
const { threadId: resolvedThreadId, prNumber: threadPRNumber, repoNameWithOwner: threadRepo, isResolved } = threadInfo;
if (resolvedThreadId !== threadId) {
core.info(`Resolved review comment ${threadId} to review thread ${resolvedThreadId}`);
}

// When the user explicitly configured target-repo or allowed-repos, validate the thread's
// repository using validateTargetRepo (supports wildcards like "*", "org/*").
// Otherwise, fall back to the legacy behavior of scoping to the triggering PR only.
if (hasExplicitTargetConfig) {
// Cross-repo mode: validate thread repo against configured repos (fail closed if missing)
if (!threadRepo) {
core.warning(`Could not determine repository for thread ${threadId}`);
core.warning(`Could not determine repository for thread ${resolvedThreadId}`);
return {
success: false,
error: `Could not determine the repository for thread ${threadId}`,
error: `Could not determine the repository for thread ${resolvedThreadId}`,
};
}
const repoValidation = validateTargetRepo(threadRepo, defaultTargetRepo, allowedRepos);
if (!repoValidation.valid) {
core.warning(`Thread ${threadId} belongs to repo ${threadRepo}, which is not in the allowed repos`);
core.warning(`Thread ${resolvedThreadId} belongs to repo ${threadRepo}, which is not in the allowed repos`);
return {
success: false,
error: repoValidation.error,
Expand All @@ -239,7 +384,7 @@ async function main(config = {}) {
};
}
if (threadPRNumber !== triggeringPRNumber) {
core.warning(`Thread ${threadId} belongs to PR #${threadPRNumber}, not triggering PR #${triggeringPRNumber}`);
core.warning(`Thread ${resolvedThreadId} belongs to PR #${threadPRNumber}, not triggering PR #${triggeringPRNumber}`);
return {
success: false,
error: `Thread belongs to PR #${threadPRNumber}, but only threads on the triggering PR #${triggeringPRNumber} can be resolved`,
Expand All @@ -256,7 +401,7 @@ async function main(config = {}) {
};
}
if (threadPRNumber !== targetPRNumber) {
core.warning(`Thread ${threadId} belongs to PR #${threadPRNumber}, not target PR #${targetPRNumber}`);
core.warning(`Thread ${resolvedThreadId} belongs to PR #${threadPRNumber}, not target PR #${targetPRNumber}`);
return {
success: false,
error: `Thread belongs to PR #${threadPRNumber}, but target is PR #${targetPRNumber}`,
Expand All @@ -268,16 +413,16 @@ async function main(config = {}) {
// Default (legacy) mode: always validate thread repo against defaultTargetRepo to stay
// least-privilege, even when there is no triggering PR (e.g. schedule/workflow_dispatch).
if (!threadRepo) {
core.warning(`Unable to determine repository for review thread ${threadId}; refusing to resolve in legacy mode`);
core.warning(`Unable to determine repository for review thread ${resolvedThreadId}; refusing to resolve in legacy mode`);
return {
success: false,
error: `Unable to determine repository for review thread ${threadId}`,
error: `Unable to determine repository for review thread ${resolvedThreadId}`,
};
}

const legacyRepoValidation = validateTargetRepo(threadRepo, defaultTargetRepo, allowedRepos);
if (!legacyRepoValidation.valid) {
core.warning(`Thread ${threadId} repository ${threadRepo} is not allowed in legacy mode`);
core.warning(`Thread ${resolvedThreadId} repository ${threadRepo} is not allowed in legacy mode`);
return {
success: false,
error: legacyRepoValidation.error || `Repository ${threadRepo} is not allowed for this handler`,
Expand All @@ -288,17 +433,17 @@ async function main(config = {}) {
if (!triggeringPRNumber) {
// No triggering PR (e.g. schedule/workflow_dispatch trigger), but the thread has been
// resolved to a specific allowed repository via the API — allow the resolution to proceed
core.info(`No triggering PR context; resolving thread ${threadId} via explicit thread_id (PR #${threadPRNumber} in ${threadRepo})`);
core.info(`No triggering PR context; resolving thread ${resolvedThreadId} via explicit thread_id (PR #${threadPRNumber} in ${threadRepo})`);
} else if (threadPRNumber !== triggeringPRNumber) {
core.warning(`Thread ${threadId} belongs to PR #${threadPRNumber}, not triggering PR #${triggeringPRNumber}`);
core.warning(`Thread ${resolvedThreadId} belongs to PR #${threadPRNumber}, not triggering PR #${triggeringPRNumber}`);
return {
success: false,
error: `Thread belongs to PR #${threadPRNumber}, but only threads on the triggering PR #${triggeringPRNumber} can be resolved`,
};
}
}

core.info(`Resolving review thread: ${threadId} (PR #${threadPRNumber}${threadRepo ? " in " + threadRepo : ""})`);
core.info(`Resolving review thread: ${resolvedThreadId} (PR #${threadPRNumber}${threadRepo ? " in " + threadRepo : ""})`);

// Apply required-labels/required-title-prefix filter
const [threadOwner, threadRepoName] = (threadRepo || `${context.repo.owner}/${context.repo.repo}`).split("/");
Expand All @@ -307,35 +452,35 @@ async function main(config = {}) {
if (filterResult) return filterResult;

if (isResolved) {
core.info(`Review thread ${threadId} is already resolved; skipping`);
core.info(`Review thread ${resolvedThreadId} is already resolved; skipping`);
return {
success: true,
thread_id: threadId,
thread_id: resolvedThreadId,
is_resolved: true,
skipped: true,
};
}

// If in staged mode, preview without executing
if (isStaged) {
logStagedPreviewInfo(`Would resolve review thread ${threadId}`);
logStagedPreviewInfo(`Would resolve review thread ${resolvedThreadId}`);
return {
success: true,
staged: true,
previewInfo: {
thread_id: threadId,
thread_id: resolvedThreadId,
pr_number: threadPRNumber,
},
};
}

let resolveResult;
try {
resolveResult = await resolveReviewThreadAPI(githubClient, threadId);
resolveResult = await resolveReviewThreadAPI(githubClient, resolvedThreadId);
} catch (error) {
if (isIntegrationAccessError(error)) {
const warningMessage =
`Skipping resolve_pull_request_review_thread for ${threadId}: configuration mismatch ` +
`Skipping resolve_pull_request_review_thread for ${resolvedThreadId}: configuration mismatch ` +
`(GitHub integration token cannot resolve this review thread: Resource not accessible by integration). ` +
`Use safe-outputs.resolve-pull-request-review-thread.github-token with a token that can resolve review threads.`;
core.warning(warningMessage);
Expand All @@ -349,17 +494,17 @@ async function main(config = {}) {
}

if (resolveResult.isResolved) {
core.info(`Successfully resolved review thread: ${threadId}`);
core.info(`Successfully resolved review thread: ${resolvedThreadId}`);
return {
success: true,
thread_id: threadId,
thread_id: resolvedThreadId,
is_resolved: true,
};
} else {
core.error(`Failed to resolve review thread: ${threadId}`);
core.error(`Failed to resolve review thread: ${resolvedThreadId}`);
return {
success: false,
error: `Failed to resolve review thread: ${threadId}`,
error: `Failed to resolve review thread: ${resolvedThreadId}`,
};
}
} catch (error) {
Expand Down
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