Add automated checks for desktop app runtime #233

- Add automation script for building, packaging, installing, executing
  and verifying Electron distrubtions across macOS, Ubuntu and Windows.
- Add GitHub workflow to run the script to test distributions using the
  script.
- Update README with new workflow status badge.
- Add application initialization log to desktop applications to be able
  to test against crashes before application initialization.

scripts/check-desktop-runtime-errors/app/extractors/linux.js

@@ -0,0 +1,34 @@
+import { access, chmod } from 'fs/promises';
+import { constants } from 'fs';
+import { findSingleFileByExtension } from '../../utils/io.js';
+import { log } from '../../utils/log.js';
+
+export async function prepareLinuxApp(desktopDistPath) {
+  const { absolutePath: appFile } = await findSingleFileByExtension(
+    'AppImage',
+    desktopDistPath,
+  );
+  await makeExecutable(appFile);
+  return {
+    appExecutablePath: appFile,
+  };
+}
+
+async function makeExecutable(appFile) {
+  if (!appFile) { throw new Error('missing file'); }
+  if (await isExecutable(appFile)) {
+    log('AppImage is already executable.');
+    return;
+  }
+  log('Making it executable...');
+  await chmod(appFile, 0o755);
+}
+
+async function isExecutable(file) {
+  try {
+    await access(file, constants.X_OK);
+    return true;
+  } catch {
+    return false;
+  }
+}

scripts/check-desktop-runtime-errors/app/extractors/macos.js

@@ -0,0 +1,66 @@
+import { runCommand } from '../../utils/run-command.js';
+import { findSingleFileByExtension, exists } from '../../utils/io.js';
+import { log, die, LOG_LEVELS } from '../../utils/log.js';
+
+export async function prepareMacOsApp(desktopDistPath) {
+  const { absolutePath: dmgPath } = await findSingleFileByExtension('dmg', desktopDistPath);
+  const { mountPath } = await mountDmg(dmgPath);
+  const appPath = await findMacAppExecutablePath(mountPath);
+  return {
+    appExecutablePath: appPath,
+    cleanup: async () => {
+      log('Cleaning up resources...');
+      await detachMount(mountPath);
+    },
+  };
+}
+
+async function mountDmg(dmgFile) {
+  const { stdout: hdiutilOutput, error } = await runCommand(`hdiutil attach '${dmgFile}'`);
+  if (error) {
+    die(`Failed to mount DMG file at ${dmgFile}.\n${error}`);
+  }
+  const mountPathMatch = hdiutilOutput.match(/\/Volumes\/[^\n]+/);
+  const mountPath = mountPathMatch ? mountPathMatch[0] : null;
+  return {
+    mountPath,
+  };
+}
+
+async function findMacAppExecutablePath(mountPath) {
+  const { stdout: findOutput, error } = await runCommand(
+    `find '${mountPath}' -maxdepth 1 -type d -name "*.app"`,
+  );
+  if (error) {
+    die(`Failed to find executable path at mount path ${mountPath}\n${error}`);
+  }
+  const appFolder = findOutput.trim();
+  const appName = appFolder.split('/').pop().replace('.app', '');
+  const appPath = `${appFolder}/Contents/MacOS/${appName}`;
+  if (await exists(appPath)) {
+    log(`Application is located at ${appPath}`);
+  } else {
+    die(`Application does not exist at ${appPath}`);
+  }
+  return appPath;
+}
+
+async function detachMount(mountPath, retries = 5) {
+  const { error } = await runCommand(`hdiutil detach '${mountPath}'`);
+  if (error) {
+    if (retries <= 0) {
+      log(`Failed to detach mount after multiple attempts: ${mountPath}\n${error}`, LOG_LEVELS.WARN);
+      return;
+    }
+    await sleep(500);
+    await detachMount(mountPath, retries - 1);
+    return;
+  }
+  log(`Successfully detached from ${mountPath}`);
+}
+
+function sleep(milliseconds) {
+  return new Promise((resolve) => {
+    setTimeout(resolve, milliseconds);
+  });
+}

scripts/check-desktop-runtime-errors/app/extractors/windows.js

@@ -0,0 +1,38 @@
+import { mkdtemp, rmdir } from 'fs/promises';
+import { join } from 'path';
+import { tmpdir } from 'os';
+import { findSingleFileByExtension, exists } from '../../utils/io.js';
+import { log, die } from '../../utils/log.js';
+import { runCommand } from '../../utils/run-command.js';
+
+export async function prepareWindowsApp(desktopDistPath) {
+  const workdir = await mkdtemp(join(tmpdir(), 'win-nsis-installation-'));
+  if (await exists(workdir)) {
+    log(`Temporary directory ${workdir} already exists, cleaning up...`);
+    await rmdir(workdir, { recursive: true });
+  }
+  const { appExecutablePath } = await installNsis(workdir, desktopDistPath);
+  return {
+    appExecutablePath,
+    cleanup: async () => {
+      log(`Cleaning up working directory ${workdir}...`);
+      await rmdir(workdir, { recursive: true });
+    },
+  };
+}
+
+async function installNsis(installationPath, desktopDistPath) {
+  const { absolutePath: installerPath } = await findSingleFileByExtension('exe', desktopDistPath);
+
+  log(`Silently installing contents of ${installerPath} to ${installationPath}...`);
+  const { error } = await runCommand(`"${installerPath}" /S /D=${installationPath}`);
+  if (error) {
+    die(`Failed to install.\n${error}`);
+  }
+
+  const { absolutePath: appExecutablePath } = await findSingleFileByExtension('exe', installationPath);
+
+  return {
+    appExecutablePath,
+  };
+}