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/utils/run-command.js

@@ -0,0 +1,45 @@
+import { exec } from 'child_process';
+import { LOG_LEVELS, log } from './log.js';
+import { indentText } from './text.js';
+
+const TIMEOUT_IN_SECONDS = 180;
+const MAX_OUTPUT_BUFFER_SIZE = 1024 * 1024; // 1 MB
+
+export function runCommand(commandString, options) {
+  return new Promise((resolve) => {
+    options = {
+      cwd: process.cwd(),
+      timeout: TIMEOUT_IN_SECONDS * 1000,
+      maxBuffer: MAX_OUTPUT_BUFFER_SIZE * 2,
+      ...options,
+    };
+
+    exec(commandString, options, (error, stdout, stderr) => {
+      let errorText;
+      if (error || stderr?.length > 0) {
+        errorText = formatError(commandString, error, stdout, stderr);
+      }
+      resolve({
+        stdout,
+        error: errorText,
+      });
+    });
+  });
+}
+
+function formatError(commandString, error, stdout, stderr) {
+  const errorParts = [
+    'Error while running command.',
+    `Command:\n${indentText(commandString, 1)}`,
+  ];
+  if (error?.toString().trim()) {
+    errorParts.push(`Error:\n${indentText(error.toString(), 1)}`);
+  }
+  if (stderr?.toString().trim()) {
+    errorParts.push(`stderr:\n${indentText(stderr, 1)}`);
+  }
+  if (stdout?.toString().trim()) {
+    errorParts.push(`stdout:\n${indentText(stdout, 1)}`);
+  }
+  return errorParts.join('\n---\n');
+}