chore(sync): merge Yarden-zamir/t3code main

.agents/skills/test-t3-mobile/SKILL.md

@@ -38,8 +38,9 @@ vp run mobile:install <ios|android> <device-id>
 
 This installs the dev client for the checkout's native fingerprint: from the
 device, the local cache, or the shared cache in seconds, building once only
-when no machine has that fingerprint yet (5-15 minutes, logged to the file it
-names). The device id may be omitted when exactly one device is booted. It
+when no machine has that fingerprint yet: in the `Mobile Dev Client` workflow
+on Blacksmith when HEAD is pushed and `gh` may dispatch it (the command waits),
+otherwise here (5-15 minutes, logged to the file it names). The device id may be omitted when exactly one device is booted. It
 prints one JSON line; on failure it names the next command. Mobile verification
 includes that step unless the user prohibits it.
 

.github/scripts/mobile-preview-comment.cjs

@@ -0,0 +1,126 @@
+// The Android half of the mobile preview comment. The android job writes the fingerprint and
+// the update; the android-build job adds the client's install link a few minutes later. Each
+// run merges what it knows into the state kept in the comment's first line.
+const MARKER = "mobile-preview-android";
+const PROJECT_ID = "d763fcb8-d37c-41ea-a773-b54a0ab4a454";
+const APP_SCHEME = "t3-code";
+
+function readState(body) {
+  const match = new RegExp(`^<!-- ${MARKER} (\\{.*\\}) -->`).exec(body ?? "");
+  if (!match) return null;
+  try {
+    const state = JSON.parse(match[1]);
+    const text = (value) => (typeof value === "string" ? value : "");
+    return {
+      fingerprint: text(state.fingerprint),
+      client: text(state.client),
+      group: text(state.group),
+    };
+  } catch {
+    return null;
+  }
+}
+
+/**
+ * New values win; a new fingerprint drops the old fingerprint's client. A build that finishes
+ * after the PR moved to another fingerprint changes nothing: its client cannot run the update
+ * the comment now shows.
+ */
+function mergeState(previous, next) {
+  const buildOnly = Boolean(next.client) && !next.group;
+  if (
+    buildOnly &&
+    previous?.fingerprint &&
+    next.fingerprint &&
+    previous.fingerprint !== next.fingerprint
+  ) {
+    return previous;
+  }
+  const fingerprint = next.fingerprint || previous?.fingerprint || "";
+  const sameFingerprint = !previous?.fingerprint || previous.fingerprint === fingerprint;
+  return {
+    fingerprint,
+    client: next.client || (sameFingerprint ? (previous?.client ?? "") : ""),
+    group: next.group || previous?.group || "",
+  };
+}
+
+function render(state, runUrl) {
+  const qr = `https://qr.expo.dev/eas-update?appScheme=${APP_SCHEME}&projectId=${PROJECT_ID}&groupId=${state.group}`;
+  const rows = [
+    `<!-- ${MARKER} ${JSON.stringify(state)} -->`,
+    "🤖 Android preview",
+    "",
+    "&nbsp; | 🤖 Android",
+    "--- | ---",
+    `Fingerprint | ${state.fingerprint || "n/a"}`,
+    `Dev client | ${state.client ? `[Install](${state.client})` : `Building on Blacksmith ([run](${runUrl})); this comment gets the install link when it finishes`}`,
+  ];
+  if (state.group) {
+    rows.push(
+      `Update Details | [Update Permalink](https://expo.dev/projects/${PROJECT_ID}/updates/${state.group})`,
+      `Update QR | <a href="${qr}"><img src="${qr}" width="250px" height="250px" /></a>`,
+    );
+  }
+  return rows.join("\n");
+}
+
+async function github(path, init = {}) {
+  const response = await fetch(`https://api.github.com${path}`, {
+    ...init,
+    headers: {
+      authorization: `Bearer ${process.env.GH_TOKEN}`,
+      accept: "application/vnd.github+json",
+      "content-type": "application/json",
+      ...init.headers,
+    },
+  });
+  if (!response.ok) {
+    throw new Error(
+      `GitHub ${init.method ?? "GET"} ${path}: ${response.status} ${await response.text()}`,
+    );
+  }
+  return response.json();
+}
+
+async function main() {
+  const repository = process.env.GITHUB_REPOSITORY;
+  const pr = process.env.PR;
+  if (!repository || !pr || !process.env.GH_TOKEN) {
+    throw new Error("GITHUB_REPOSITORY, PR and GH_TOKEN are required.");
+  }
+  const runUrl = `${process.env.GITHUB_SERVER_URL}/${repository}/actions/runs/${process.env.GITHUB_RUN_ID}`;
+  let existing = null;
+  for (let page = 1; existing === null; page++) {
+    const comments = await github(
+      `/repos/${repository}/issues/${pr}/comments?per_page=100&page=${page}`,
+    );
+    // Only this workflow's own comment: anyone can post the marker, and nobody else's is editable.
+    existing =
+      comments.find(
+        (comment) =>
+          comment.user?.login === "github-actions[bot]" && readState(comment.body) !== null,
+      ) ?? null;
+    if (comments.length < 100) break;
+  }
+  const state = mergeState(readState(existing?.body), {
+    fingerprint: process.env.FINGERPRINT ?? "",
+    client: process.env.CLIENT ?? "",
+    group: process.env.GROUP ?? "",
+  });
+  const body = JSON.stringify({ body: render(state, runUrl) });
+  if (existing) {
+    await github(`/repos/${repository}/issues/comments/${existing.id}`, { method: "PATCH", body });
+  } else {
+    await github(`/repos/${repository}/issues/${pr}/comments`, { method: "POST", body });
+  }
+}
+
+if (require.main === module) {
+  main().catch((error) => {
+    console.error(error);
+    process.exitCode = 1;
+  });
+}
+
+module.exports = { mergeState, readState, render };

.github/scripts/mobile-preview-comment.test.cjs

@@ -0,0 +1,62 @@
+const assert = require("node:assert/strict");
+const test = require("node:test");
+
+const { mergeState, readState, render } = require("./mobile-preview-comment.cjs");
+
+const fingerprint = "c31608b37a8a2dca35ccee39cfd2ec7305042629";
+const run = "https://github.com/pingdotgg/t3code/actions/runs/1";
+
+test("the comment round-trips its state", () => {
+  const state = { fingerprint, client: "", group: "8e413a0a" };
+  const body = render(state, run);
+  assert.deepEqual(readState(body), state);
+  assert.match(
+    body,
+    /Building on Blacksmith \(\[run\]\(https:\/\/github\.com\/pingdotgg\/t3code\/actions\/runs\/1\)\)/,
+  );
+  assert.match(
+    body,
+    /qr\.expo\.dev\/eas-update\?appScheme=t3-code&projectId=[0-9a-f-]+&groupId=8e413a0a/,
+  );
+  assert.equal(readState("🚀 Expo continuous deployment is ready!"), null);
+});
+
+test("the build job adds the install link without losing the update", () => {
+  const first = mergeState(null, { fingerprint, client: "", group: "8e413a0a" });
+  const built = mergeState(first, { fingerprint, client: "https://expo.dev/a/b", group: "" });
+  assert.deepEqual(built, { fingerprint, client: "https://expo.dev/a/b", group: "8e413a0a" });
+  assert.match(render(built, run), /Dev client \| \[Install\]\(https:\/\/expo\.dev\/a\/b\)/);
+});
+
+test("a new fingerprint drops the old client; the same one keeps it", () => {
+  const built = { fingerprint, client: "https://expo.dev/a/b", group: "old" };
+  assert.deepEqual(mergeState(built, { fingerprint, client: "", group: "new" }), {
+    fingerprint,
+    client: "https://expo.dev/a/b",
+    group: "new",
+  });
+  assert.deepEqual(mergeState(built, { fingerprint: "f".repeat(40), client: "", group: "new" }), {
+    fingerprint: "f".repeat(40),
+    client: "",
+    group: "new",
+  });
+});
+
+test("a build that finishes after the PR moved to another fingerprint changes nothing", () => {
+  const current = { fingerprint: "f".repeat(40), client: "", group: "new" };
+  assert.deepEqual(
+    mergeState(current, { fingerprint, client: "https://expo.dev/a/b", group: "" }),
+    current,
+  );
+});
+
+test("state from the comment is always three strings", () => {
+  assert.deepEqual(
+    readState('<!-- mobile-preview-android {"fingerprint":5,"client":null} -->\nx'),
+    {
+      fingerprint: "",
+      client: "",
+      group: "",
+    },
+  );
+});

.github/workflows/ci.yml

@@ -314,7 +314,7 @@ jobs:
         run: python3 -B .github/scripts/stage-preview-bundle.test.py
 
       - name: Test release checks
-        run: node --test .github/scripts/check-nightly-release.test.cjs .github/scripts/vercel-deployment-output.test.cjs
+        run: node --test .github/scripts/check-nightly-release.test.cjs .github/scripts/vercel-deployment-output.test.cjs .github/scripts/mobile-preview-comment.test.cjs
 
       - name: Finish installing browser secret helper build libraries
         timeout-minutes: 5