build(desktop): allow controlled unsigned v0.1.0 release

frontend/scripts/verify-desktop-update-feed.mjs

@@ -2,9 +2,12 @@ import { access, readFile } from "node:fs/promises";
 import { createHash } from "node:crypto";
 import { basename, resolve } from "node:path";
 import { fileURLToPath } from "node:url";
+import { loadDesktopReleasePolicy, resolveDesktopReleasePolicy } from "./desktop-release-policy.mjs";
 
 const frontendDir = fileURLToPath(new URL("../", import.meta.url));
 const packageInfo = JSON.parse(await readFile(resolve(frontendDir, "package.json"), "utf8"));
+const desktopReleasePolicy = await loadDesktopReleasePolicy();
+const desktopReleaseResolution = resolveDesktopReleasePolicy(packageInfo.version, desktopReleasePolicy);
 const failures = [];
 
 const args = process.argv.slice(2);
@@ -21,6 +24,11 @@ const feedPath = resolve(
 );
 const artifactDir = optionValue("--artifacts-dir") || process.env.DESKTOP_UPDATE_ARTIFACTS_DIR;
 const expectedBaseUrl = optionValue("--base-url") || process.env.DESKTOP_UPDATE_BASE_URL;
+const requiresProvenance = args.includes("--require-provenance");
+const provenancePath =
+  optionValue("--provenance") ||
+  process.env.DESKTOP_RELEASE_PROVENANCE ||
+  (artifactDir ? resolve(artifactDir, "DESKTOP-RELEASE-PROVENANCE.json") : undefined);
 const requiredPlatforms = new Set([
   "darwin-aarch64",
   "darwin-x86_64",
@@ -94,6 +102,56 @@ const assertManifestEntries = async (checksums) => {
   }
 };
 
+const verifyProvenance = async (checksums) => {
+  if (!requiresProvenance) return;
+  if (!provenancePath) {
+    fail("Desktop release provenance path is required.");
+    return;
+  }
+
+  let provenance;
+  try {
+    provenance = JSON.parse(await readFile(provenancePath, "utf8"));
+  } catch (error) {
+    fail(`Cannot read desktop release provenance ${provenancePath}: ${error.message}`);
+    return;
+  }
+
+  assert(provenance.schemaVersion === 1, "Desktop release provenance schemaVersion must be 1.");
+  assert(provenance.version === packageInfo.version, "Desktop release provenance version must match the package version.");
+  assert(provenance.tag === `v${packageInfo.version}`, "Desktop release provenance tag must match the package version.");
+  assert(/^[0-9a-f]{40}$/i.test(provenance.commit || ""), "Desktop release provenance must contain a full commit SHA.");
+  assert(
+    provenance.platformSigningMode === desktopReleaseResolution.platformSigningMode,
+    `Desktop release provenance platformSigningMode must be ${desktopReleaseResolution.platformSigningMode}.`,
+  );
+  assert(
+    provenance.platformSigning?.macos === desktopReleaseResolution.macosSigning,
+    `Desktop release provenance macOS signing must be ${desktopReleaseResolution.macosSigning}.`,
+  );
+  assert(
+    provenance.platformSigning?.windows === desktopReleaseResolution.windowsSigning,
+    `Desktop release provenance Windows signing must be ${desktopReleaseResolution.windowsSigning}.`,
+  );
+  assert(
+    provenance.updaterSigning === "required-and-verified",
+    "Desktop release provenance must record required-and-verified updater signing.",
+  );
+  assert(
+    provenance.artifactLabel === desktopReleaseResolution.artifactLabel,
+    `Desktop release provenance artifactLabel must be ${desktopReleaseResolution.artifactLabel}.`,
+  );
+  if (desktopReleaseResolution.warningRequired) {
+    assert(
+      Array.isArray(provenance.warnings) && provenance.warnings.length >= 2,
+      "Unsigned platform release provenance must include installation trust warnings.",
+    );
+  }
+  if (artifactDir) {
+    await assertChecksum(checksums, provenancePath, "desktop release provenance");
+  }
+};
+
 let feed;
 try {
   feed = JSON.parse(await readFile(feedPath, "utf8"));
@@ -104,6 +162,7 @@ try {
 if (feed) {
   const checksums = await readChecksumManifest();
   await assertManifestEntries(checksums);
+  await verifyProvenance(checksums);
   const normalizedFeedVersion = String(feed.version || "").replace(/^v/, "");
   const platforms = feed.platforms || {};
   const darwinArm = platforms["darwin-aarch64"];