Show readme with log description and sharing instructions

src/lsptoolshost/logging/collectLogs.ts

@@ -19,6 +19,8 @@ import {
     verifyOrAcquireDotnetTool,
     DumpType,
     createActivityLogCapture,
+    generateReadmeContent,
+    LogsToCollect,
 } from './loggingUtils';
 import { runDotnetTraceInTerminal } from './profiling';
 import { RazorLogger } from '../../razor/src/razorLogger';
@@ -30,13 +32,6 @@ interface CollectOptionQuickPickItem extends vscode.QuickPickItem {
     option: CollectOption;
 }
 
-interface LogsToCollect {
-    activityLogs: boolean;
-    performanceTrace: boolean;
-    memoryDump: boolean;
-    gcDump: boolean;
-}
-
 /**
  * Registers the unified collect logs command.
  */
@@ -142,15 +137,29 @@ async function collectLogs(
             }),
             { modal: true }
         );
-    } else if (archiveResult.uri) {
-        const openFolder = vscode.l10n.t('Open Folder');
-        const result = await vscode.window.showInformationMessage(
-            vscode.l10n.t('C# logs saved successfully.'),
-            openFolder
-        );
-        if (result === openFolder) {
-            await vscode.commands.executeCommand('revealFileInOS', archiveResult.uri);
-        }
+        return;
+    }
+
+    if (archiveResult.uri) {
+        await showReadme(selectedLogs, archiveResult.uri.fsPath);
+        await showSuccessPopup(archiveResult.uri);
+    }
+}
+
+async function showReadme(selectedLogs: LogsToCollect, archivePath: string) {
+    const readmeContent = generateReadmeContent(selectedLogs, archivePath);
+    const document = await vscode.workspace.openTextDocument({
+        content: readmeContent,
+        language: 'markdown',
+    });
+    await vscode.commands.executeCommand('markdown.showPreview', document.uri);
+}
+
+async function showSuccessPopup(uri: vscode.Uri) {
+    const openFolder = vscode.l10n.t('Open Folder');
+    const result = await vscode.window.showInformationMessage(vscode.l10n.t('C# logs saved successfully.'), openFolder);
+    if (result === openFolder) {
+        await vscode.commands.executeCommand('revealFileInOS', uri);
     }
 }
 

src/lsptoolshost/logging/loggingUtils.ts

@@ -575,3 +575,113 @@ export async function createActivityLogCapture(
         },
     };
 }
+
+/** Describes which additional logs were selected for collection. */
+export interface LogsToCollect {
+    activityLogs: boolean;
+    performanceTrace: boolean;
+    memoryDump: boolean;
+    gcDump: boolean;
+}
+
+/**
+ * Generate a readme.md file which describes the contents of the log archive,
+ * warns the user about potentially sensitive information in the logs, and
+ * provides instructions on how to share the logs with Microsoft for troubleshooting.
+ * @param options Which additional logs were selected for collection
+ * @param archivePath The absolute path where the archive was saved on disk
+ */
+export function generateReadmeContent(options: LogsToCollect, archivePath: string): string {
+    const lines: string[] = [];
+
+    lines.push('# C# Extension Log Archive');
+    lines.push('');
+    lines.push(
+        'An archive was generated by the **C# extension for Visual Studio Code** (`CSharp: Collect C# Logs` command).'
+    );
+    lines.push('');
+    lines.push(`**Archive location**: [${archivePath}](${archivePath})`);
+    lines.push('');
+
+    lines.push('## Contents');
+    lines.push('');
+
+    lines.push('### Current Logs and Settings');
+    lines.push('');
+    lines.push('| File | Description |');
+    lines.push('| --- | --- |');
+    lines.push('| `csharp.log` | C# extension output log |');
+    lines.push('| `csharp-lsp-trace.log` | LSP trace log between VS Code and the Roslyn language server |');
+    lines.push('| `razor.log` | Razor language support log |');
+    lines.push('| `csharp-settings.json` | Current C# extension settings at time of capture |');
+    lines.push('');
+
+    if (options.activityLogs) {
+        lines.push('### Record Activity');
+        lines.push('');
+        lines.push(
+            'Activity logs capture live output recorded during the diagnostic session with the log level set to Trace.'
+        );
+        lines.push('');
+        lines.push('| File | Description |');
+        lines.push('| --- | --- |');
+        lines.push('| `csharp.activity.log` | C# output captured during the recording session |');
+        lines.push('| `csharp-lsp-trace.activity.log` | LSP trace captured during the recording session |');
+        lines.push('| `razor.activity.log` | Razor output captured during the recording session |');
+        lines.push('');
+    }
+
+    if (options.performanceTrace) {
+        lines.push('### Performance Trace');
+        lines.push('');
+        lines.push(
+            'A `.nettrace` file captured using `dotnet-trace`. This file contains runtime events from the language server process.'
+        );
+        lines.push('');
+        lines.push(
+            'You can view this file using [PerfView](https://github.com/microsoft/perfview), [dotnet-trace convert](https://learn.microsoft.com/dotnet/core/diagnostics/dotnet-trace#dotnet-trace-convert), or Visual Studio.'
+        );
+        lines.push('');
+    }
+
+    if (options.memoryDump) {
+        lines.push('### Memory Dump');
+        lines.push('');
+        lines.push(
+            'One or more `.dmp` files captured using `dotnet-dump`. These contain a process memory dump of the language server.'
+        );
+        lines.push('');
+        lines.push(
+            '> **WARNING**: Memory dumps contain the full process memory and may include sensitive data such as source code, file contents, and credentials loaded in memory.'
+        );
+        lines.push('');
+    }
+
+    if (options.gcDump) {
+        lines.push('### GC Dump');
+        lines.push('');
+        lines.push(
+            'One or more `.gcdump` files captured using `dotnet-gcdump`. These contain managed heap information from the language server.'
+        );
+        lines.push('');
+    }
+
+    lines.push('## Sharing');
+    lines.push('');
+
+    lines.push('> **WARNING**: This archive may contain sensitive information such as file paths, project names,');
+    lines.push('> source code fragments, and other workspace-specific details. Please review the contents before');
+    lines.push('> sharing publicly.');
+    lines.push('');
+
+    lines.push(
+        '**Publicly**: Attach this archive to your [GitHub issue](https://github.com/dotnet/vscode-csharp/issues).'
+    );
+    lines.push('');
+    lines.push(
+        '**Privately**: If the archive contains sensitive information, upload it via the [Developer Community](https://developercommunity.visualstudio.com/dotnet/report) page and reference your GitHub issue in the description.'
+    );
+    lines.push('');
+
+    return lines.join('\n');
+}