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feat: add session_id output to enable resuming conversations (#739)

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Add a new `session_id` output that exposes the Claude Code session ID,
allowing other workflows or Claude Code instances to resume the
conversation using `--resume <session_id>`.

Changes:
- Add parseAndSetSessionId() function to extract session_id from
  the system.init message in execution output
- Add session_id output to both action.yml and base-action/action.yml
- Add comprehensive tests for the new functionality

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Gor Grigoryan
2025-12-15 07:42:54 +04:00
committed by GitHub
parent b58533dbe0
commit 67bf0594ce
4 changed files with 109 additions and 1 deletions
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71
base-action/test/structured-output.test.ts
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@@ -4,7 +4,10 @@ import { describe, test, expect, afterEach, beforeEach, spyOn } from "bun:test";
import { writeFile, unlink } from "fs/promises";
import { tmpdir } from "os";
import { join } from "path";
import { parseAndSetStructuredOutputs } from "../src/run-claude";
import {
parseAndSetStructuredOutputs,
parseAndSetSessionId,
} from "../src/run-claude";
import * as core from "@actions/core";
// Mock execution file path
@@ -35,16 +38,19 @@ async function createMockExecutionFile(
// Spy on core functions
let setOutputSpy: any;
let infoSpy: any;
let warningSpy: any;
beforeEach(() => {
setOutputSpy = spyOn(core, "setOutput").mockImplementation(() => {});
infoSpy = spyOn(core, "info").mockImplementation(() => {});
warningSpy = spyOn(core, "warning").mockImplementation(() => {});
});
describe("parseAndSetStructuredOutputs", () => {
afterEach(async () => {
setOutputSpy?.mockRestore();
infoSpy?.mockRestore();
warningSpy?.mockRestore();
try {
await unlink(TEST_EXECUTION_FILE);
} catch {
@@ -156,3 +162,66 @@ describe("parseAndSetStructuredOutputs", () => {
);
});
});
describe("parseAndSetSessionId", () => {
afterEach(async () => {
setOutputSpy?.mockRestore();
infoSpy?.mockRestore();
warningSpy?.mockRestore();
try {
await unlink(TEST_EXECUTION_FILE);
} catch {
// Ignore if file doesn't exist
}
});
test("should extract session_id from system.init message", async () => {
const messages = [
{ type: "system", subtype: "init", session_id: "test-session-123" },
{ type: "result", cost_usd: 0.01 },
];
await writeFile(TEST_EXECUTION_FILE, JSON.stringify(messages));
await parseAndSetSessionId(TEST_EXECUTION_FILE);
expect(setOutputSpy).toHaveBeenCalledWith("session_id", "test-session-123");
expect(infoSpy).toHaveBeenCalledWith("Set session_id: test-session-123");
});
test("should handle missing session_id gracefully", async () => {
const messages = [
{ type: "system", subtype: "init" },
{ type: "result", cost_usd: 0.01 },
];
await writeFile(TEST_EXECUTION_FILE, JSON.stringify(messages));
await parseAndSetSessionId(TEST_EXECUTION_FILE);
expect(setOutputSpy).not.toHaveBeenCalled();
});
test("should handle missing system.init message gracefully", async () => {
const messages = [{ type: "result", cost_usd: 0.01 }];
await writeFile(TEST_EXECUTION_FILE, JSON.stringify(messages));
await parseAndSetSessionId(TEST_EXECUTION_FILE);
expect(setOutputSpy).not.toHaveBeenCalled();
});
test("should handle malformed JSON gracefully with warning", async () => {
await writeFile(TEST_EXECUTION_FILE, "{ invalid json");
await parseAndSetSessionId(TEST_EXECUTION_FILE);
expect(setOutputSpy).not.toHaveBeenCalled();
expect(warningSpy).toHaveBeenCalled();
});
test("should handle non-existent file gracefully with warning", async () => {
await parseAndSetSessionId("/nonexistent/file.json");
expect(setOutputSpy).not.toHaveBeenCalled();
expect(warningSpy).toHaveBeenCalled();
});
});