feat: add auto update support (#65)

launcher/commands/update-command.ts

@@ -1,10 +1,27 @@
 import fs from 'node:fs';
 import os from 'node:os';
 import path from 'node:path';
+import packageJson from '../../package.json';
 import { runAppCommandCaptureOutput } from '../mpv.js';
+import { log as launcherLog } from '../log.js';
 import { nowMs } from '../time.js';
 import { sleep } from '../util.js';
 import type { LauncherCommandContext } from './context.js';
+import { readLauncherMainConfigObject } from '../config/shared-config-reader.js';
+import type { UpdateChannel } from '../../src/types/config.js';
+import { updateAppImageFromRelease } from '../../src/main/runtime/update/appimage-updater.js';
+import { updateLauncherFromRelease } from '../../src/main/runtime/update/launcher-updater.js';
+import {
+  compareSemverLike,
+  fetchLatestStableRelease,
+  fetchReleaseAssetBuffer,
+  fetchReleaseAssetText,
+  findReleaseAsset,
+  parseReleaseVersion,
+  parseSha256Sums,
+  type FetchLike,
+} from '../../src/main/runtime/update/release-assets.js';
+import { updateSupportAssetsFromRelease } from '../../src/main/runtime/update/support-assets.js';
 
 type UpdateCommandResponse = {
   ok: boolean;
@@ -13,6 +30,18 @@ type UpdateCommandResponse = {
   error?: string;
 };
 
+type DirectReleaseUpdateRequest = {
+  appPath: string;
+  launcherPath: string;
+  channel: UpdateChannel;
+};
+
+type DirectReleaseUpdateResult = {
+  appImage: { status: string; command?: string; message?: string };
+  launcher: { status: string; command?: string; message?: string };
+  supportAssets: Array<{ status: string; command?: string; message?: string }>;
+};
+
 type UpdateCommandDeps = {
   createTempDir: (prefix: string) => string;
   joinPath: (...parts: string[]) => string;
@@ -22,9 +51,95 @@ type UpdateCommandDeps = {
   ) => { status: number; stdout: string; stderr: string; error?: Error };
   waitForUpdateResponse: (responsePath: string) => Promise<UpdateCommandResponse>;
   removeDir: (targetPath: string) => void;
+  runDirectReleaseUpdate: (
+    request: DirectReleaseUpdateRequest,
+  ) => Promise<DirectReleaseUpdateResult>;
+  readMainConfig: () => Record<string, unknown> | null;
+  log: typeof launcherLog;
 };
 
 const UPDATE_RESPONSE_TIMEOUT_MS = 10 * 60 * 1000;
+const CURRENT_VERSION = packageJson.version;
+
+function getFetchForLauncherUpdater(): FetchLike {
+  return globalThis.fetch.bind(globalThis) as FetchLike;
+}
+
+async function runDirectReleaseUpdate(
+  request: DirectReleaseUpdateRequest,
+): Promise<DirectReleaseUpdateResult> {
+  const fetchForUpdater = getFetchForLauncherUpdater();
+  const release = await fetchLatestStableRelease({
+    fetch: fetchForUpdater,
+    channel: request.channel,
+  });
+  const releaseVersion = parseReleaseVersion(release);
+  if (releaseVersion && compareSemverLike(releaseVersion, CURRENT_VERSION) <= 0) {
+    return {
+      appImage: { status: 'up-to-date' },
+      launcher: { status: 'up-to-date' },
+      supportAssets: [{ status: 'up-to-date' }],
+    };
+  }
+
+  const sumsAsset = release ? findReleaseAsset(release, 'SHA256SUMS.txt') : null;
+  const sha256Sums =
+    sumsAsset && release
+      ? parseSha256Sums(
+          await fetchReleaseAssetText(fetchForUpdater, sumsAsset.browser_download_url),
+        )
+      : new Map<string, string>();
+  const downloadAsset = (url: string) => fetchReleaseAssetBuffer(fetchForUpdater, url);
+
+  const [appImage, launcher, supportAssets] = await Promise.all([
+    updateAppImageFromRelease({
+      release,
+      sha256Sums,
+      appImagePath: request.appPath,
+      downloadAsset,
+    }),
+    updateLauncherFromRelease({
+      release,
+      sha256Sums,
+      launcherPath: request.launcherPath,
+      downloadAsset,
+    }),
+    updateSupportAssetsFromRelease({
+      release,
+      sha256Sums,
+      downloadAsset,
+    }),
+  ]);
+
+  return { appImage, launcher, supportAssets };
+}
+
+function readUpdateChannel(root: Record<string, unknown> | null): UpdateChannel {
+  const updates =
+    root?.updates && typeof root.updates === 'object' && !Array.isArray(root.updates)
+      ? (root.updates as Record<string, unknown>)
+      : null;
+  return updates?.channel === 'prerelease' ? 'prerelease' : 'stable';
+}
+
+function logUpdateResult(
+  label: string,
+  result: { status: string; command?: string; message?: string },
+  configuredLogLevel: NonNullable<LauncherCommandContext['args']['logLevel']>,
+  deps: Pick<UpdateCommandDeps, 'log'>,
+): void {
+  const displayStatus = result.status === 'up-to-date' ? 'up to date' : result.status;
+  deps.log('info', configuredLogLevel, `${label} update: ${displayStatus}`);
+  if (result.command) {
+    deps.log(
+      'warn',
+      configuredLogLevel,
+      `${label} update requires manual command: ${result.command}`,
+    );
+  } else if (result.message) {
+    deps.log('warn', configuredLogLevel, `${label} update note: ${result.message}`);
+  }
+}
 
 const defaultDeps: UpdateCommandDeps = {
   createTempDir: (prefix) => fs.mkdtempSync(path.join(os.tmpdir(), prefix)),
@@ -47,6 +162,9 @@ const defaultDeps: UpdateCommandDeps = {
   removeDir: (targetPath) => {
     fs.rmSync(targetPath, { recursive: true, force: true });
   },
+  runDirectReleaseUpdate,
+  readMainConfig: readLauncherMainConfigObject,
+  log: launcherLog,
 };
 
 export async function runUpdateCommand(
@@ -59,6 +177,21 @@ export async function runUpdateCommand(
     return false;
   }
 
+  if (context.processAdapter.platform() === 'linux') {
+    const result = await resolvedDeps.runDirectReleaseUpdate({
+      appPath,
+      launcherPath: scriptPath,
+      channel: readUpdateChannel(resolvedDeps.readMainConfig()),
+    });
+    const logLevel = args.logLevel ?? 'warn';
+    logUpdateResult('AppImage', result.appImage, logLevel, resolvedDeps);
+    logUpdateResult('Launcher', result.launcher, logLevel, resolvedDeps);
+    for (const supportResult of result.supportAssets) {
+      logUpdateResult('Rofi theme', supportResult, logLevel, resolvedDeps);
+    }
+    return true;
+  }
+
   const tempDir = resolvedDeps.createTempDir('subminer-update-');
   const responsePath = resolvedDeps.joinPath(tempDir, 'response.json');