feat: add issue-repo input to comment on issues in another repository

README.md

@@ -183,6 +183,7 @@ For more advanced usage, there are several inputs available.
     summary: true # Post report to the job summary. Default is true
     pull-request: false # Comment on pull request with report. Default is false
     issue: '' # Issue number to comment on. Works with standard issues and pull-request. Default is no issue
+    issue-repo: '' # Repository containing the issue or pull request to comment on, in owner/repo format. Default is the repository running the workflow
     status-check: false # Create a status check for the workflow. Default is false
     status-check-name: 'Test Reporter Results' # Name of the status check. Default is GitHub Test Reporter Results 
     community-report-name: 'summary-short' # Name of the community report to use. Default is summary-short
@@ -273,6 +274,24 @@ input and providing the issue number ():
 
 Requires a `GITHUB_TOKEN` with issue or pull request write permission.
 
+The issue or pull request can live in a different repository than the one
+running the workflow — useful when an orchestration repository runs the tests
+but the results belong on a pull request in another repository. Set
+`issue-repo` in `owner/repo` format and provide a token with write access to
+that repository:
+
+```yaml
+- name: Publish Test Report
+  uses: ctrf-io/github-test-reporter@v1
+  with:
+    report-path: './ctrf/*.json'
+    issue: '123'
+    issue-repo: 'my-org/my-other-repo'
+  env:
+    GITHUB_TOKEN: ${{ secrets.CROSS_REPO_TOKEN }}
+  if: always()
+```
+
 ### Comment Management Inputs
 
 `update-comment` An existing tagged comment is found, the new report is

__tests__/github/handler.test.ts

@@ -7,6 +7,7 @@ import {
 	findExistingMarkedComment,
 	handleComment,
 	handleViewsAndComments,
+	resolveIssueRepo,
 } from "../../src/github/handler.js";
 import type { Inputs } from "../../src/types/index.js";
 import type { Report } from "../../src/ctrf/core/types/ctrf.js";
@@ -740,3 +741,28 @@ describe("handleViewsAndComments", () => {
 		expect(mockCore.setOutput).toHaveBeenCalledTimes(2);
 	});
 });
+
+describe("resolveIssueRepo", () => {
+	it("should fall back to the workflow repository when issue-repo is empty", () => {
+		expect(resolveIssueRepo("")).toEqual({
+			owner: "test-owner",
+			repo: "test-repo",
+		});
+	});
+
+	it("should resolve owner and repo from an owner/repo value", () => {
+		expect(resolveIssueRepo("some-org/some-repo")).toEqual({
+			owner: "some-org",
+			repo: "some-repo",
+		});
+	});
+
+	it.each(["no-slash", "too/many/slashes", "/missing-owner", "missing-repo/"])(
+		"should throw for malformed issue-repo %s",
+		(value) => {
+			expect(() => resolveIssueRepo(value)).toThrow(
+				`Invalid issue-repo "${value}" - expected "owner/repo" format`,
+			);
+		},
+	);
+});

action.yml

@@ -140,6 +140,14 @@ inputs:
     description: 'Add a comment to the issue number with the generated report.'
     required: false
     default: ''
+  issue-repo:
+    description:
+      'Repository containing the issue or pull request to comment on, in
+      owner/repo format. Defaults to the repository running the workflow.
+      Commenting on another repository requires a token with write access to
+      it.'
+    required: false
+    default: ''
   annotate:
     description: 'Add annotations to failed tests in the GitHub Actions UI.'
     required: false

src/core/inputs.ts

@@ -29,6 +29,7 @@ export function getInputs(): Inputs {
 		githubReport: core.getInput("github-report").toLowerCase() === "true",
 		pullRequest: core.getInput("pull-request").toLowerCase() === "true",
 		issue: core.getInput("issue").toLowerCase() || "",
+		issueRepo: core.getInput("issue-repo") || "",
 		collapseLargeReports:
 			core.getInput("collapse-large-reports").toLowerCase() === "true",
 		summaryReport: core.getInput("summary-report").toLowerCase() === "true",

src/github/handler.ts

@@ -216,6 +216,31 @@ async function postOrUpdatePRComment(
 	}
 }
 
+/**
+ * Resolves the repository that an issue comment should be posted to.
+ *
+ * @param issueRepo - The user-provided `issue-repo` input in `owner/repo` format, or an empty string.
+ * @returns The owner and repository name to comment on.
+ * @throws {Error} If `issueRepo` is set but not in `owner/repo` format.
+ */
+export function resolveIssueRepo(issueRepo: string): {
+	owner: string;
+	repo: string;
+} {
+	if (!issueRepo) {
+		return { owner: context.repo.owner, repo: context.repo.repo };
+	}
+
+	const parts = issueRepo.split("/");
+	if (parts.length !== 2 || !parts[0] || !parts[1]) {
+		throw new Error(
+			`Invalid issue-repo "${issueRepo}" - expected "owner/repo" format`,
+		);
+	}
+
+	return { owner: parts[0], repo: parts[1] };
+}
+
 /**
  * Posts or updates a comment on an issue.
  *
@@ -231,9 +256,10 @@ async function postOrUpdateIssueComment(
 	const newSummary = core.summary.stringify();
 
 	try {
+		const { owner, repo } = resolveIssueRepo(inputs.issueRepo);
 		await handleComment(
-			context.repo.owner,
-			context.repo.repo,
+			owner,
+			repo,
 			parseInt(inputs.issue, 10),
 			newSummary,
 			marker,
@@ -259,6 +285,7 @@ async function postOrUpdateIssueComment(
 					"    runs-on: ubuntu-latest\n" +
 					"    permissions:\n" +
 					"      issues: write\n\n" +
+					"When commenting on an issue in another repository via the issue-repo input, GITHUB_TOKEN must be a token with write access to that repository.\n" +
 					"See documentation: https://docs.github.com/en/actions/security-for-github-actions/security-guides/automatic-token-authentication#modifying-the-permissions-for-the-github_token",
 			);
 		} else if (error instanceof Error) {

src/types/reporter.ts

@@ -6,6 +6,7 @@ export interface Inputs {
 	summary: boolean;
 	pullRequest: boolean;
 	issue: string;
+	issueRepo: string;
 	collapseLargeReports: boolean;
 	summaryReport: boolean;
 	summaryDeltaReport: boolean;