ci: less verbose e2e startup (#3483)

This hides a number of error messages that are really indications that
we need to continue waiting.

Author: marksvc

src/SIL.XForge.Scripture/ClientApp/e2e/await-application-startup.mts

@@ -3,22 +3,37 @@
 // This script polls to check whether the application has started at localhost:5000, and exits when it has started up,
 // or exits with a failure if it hasn't started in 5 minutes.
 
+const programName = 'await-application-startup';
 const pollUrl = 'http://localhost:5000/projects';
 const pollInterval = 1000;
 const timeout = 5 * 60_000;
 
+const startTime = Date.now();
+let lastError: string | null = null;
+
+function output(message: string) {
+  console.log(`${programName}: ${message}`);
+}
+
+function outputWithoutNewline(message: string) {
+  Deno.stdout.writeSync(new TextEncoder().encode(`${programName}: ${message}`));
+}
+
 setTimeout(() => {
-  console.log('Failed to start in ', timeout, ' milliseconds. Exiting.');
+  console.log(); // New line after dots
+  if (lastError != null) {
+    output(`Error: ${lastError}`);
+  }
+  output(`Failed to start in ${timeout} milliseconds. Exiting.`);
   Deno.exit(1);
 }, timeout);
 
-const startTime = Date.now();
 function elapsedTime() {
-  const currentTIme = Date.now();
-  const elapsed = currentTIme - startTime;
+  const currentTime = Date.now();
+  const elapsed = currentTime - startTime;
   const minutes = Math.floor(elapsed / 60_000);
   const seconds = Math.floor((elapsed % 60_000) / 1000);
-  return `${minutes}:${seconds < 10 ? '0' + seconds : seconds}`;
+  return `${minutes}:${seconds.toString().padStart(2, '0')}`;
 }
 
 async function check() {
@@ -27,15 +42,20 @@ async function check() {
       headers: { Accept: 'text/html' }
     });
     if (response.ok) {
-      console.log(elapsedTime(), 'Startup check passed. Exiting.');
+      console.log(); // New line after dots
+      output(`${elapsedTime()} Startup check passed. Exiting.`);
       Deno.exit(0);
     } else {
-      console.log(elapsedTime(), 'Startup check failed: ', response.status, response.statusText);
+      lastError = `${response.status} ${response.statusText}`;
+      Deno.stdout.writeSync(new TextEncoder().encode('.'));
     }
   } catch (error) {
-    console.log(elapsedTime(), 'Startup check failed: ' + error.message);
+    const message = error instanceof Error ? error.message : String(error);
+    lastError = message;
+    Deno.stdout.writeSync(new TextEncoder().encode('.'));
   }
 }
 
+outputWithoutNewline('Awaiting application startup before running tests ...');
 setTimeout(check, 0);
 setInterval(check, pollInterval);

src/SIL.XForge.Scripture/ClientApp/e2e/pre_merge_ci.sh

@@ -49,7 +49,6 @@ function startServer() {
   local SERVER_PID="$!"
   trap "shutDownServer ${SERVER_PID}" EXIT
   output "Server started with PID ${SERVER_PID}"
-  output "Awaiting application startup before running tests"
   cd "${SCRIPT_DIR}"
   ./await-application-startup.mts
 }