Add Project File Info to Diagnostics Window Output

Common/Product/SharedProject/ProjectNode.cs

@@ -423,6 +423,12 @@ public MSBuildExecution.ProjectInstance CurrentConfig {
             }
         }
 
+        public Dictionary<string, HierarchyNode> DiskNodes {
+            get {
+                return _diskNodes;
+            }
+        }
+
         #region overridden properties
 
         public override bool CanOpenCommandPrompt {

Nodejs/Product/Nodejs/Commands/DiagnosticsCommand.cs

@@ -15,6 +15,7 @@
 //*********************************************************//
 
 using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Reflection;
@@ -26,14 +27,23 @@
 
 namespace Microsoft.NodejsTools.Commands {
     internal sealed class DiagnosticsCommand : Command {
-        private static readonly string[] interestingDteProperties = new[] {
+        private static readonly string[] _interestingDteProperties = new[] {
             "StartupFile",
             "WorkingDirectory",
             "PublishUrl",
             "SearchPath",
             "CommandLineArguments"
         };
 
+        private static readonly string[] _interestingFileExtensions = new[] {
+            ".js",
+            ".jsx",
+            ".tsx",
+            ".d.ts",
+            ".ts",
+            ".html"
+        };
+
         public DiagnosticsCommand(IServiceProvider serviceProvider) { }
 
         public override int CommandId {
@@ -75,7 +85,7 @@ private static string GetSolutionInfo() {
             res.AppendLine("Projects:");
 
             foreach (EnvDTE.Project project in dte.Solution.Projects) {
-                res.AppendLine(Indent(4, GetProjectInfo(project)));
+                res.AppendLine(Indent(1, GetProjectInfo(project)));
             }
 
             return res.ToString();
@@ -105,20 +115,20 @@ private static string GetProjectInfo(EnvDTE.Project project) {
                     // about the exception. We'll add it to the output,
                     // rather than crashing.
                     res.AppendLine("Project: " + ex.Message);
-                    res.AppendLine(Indent(8, "Kind: Node.js"));
+                    res.AppendLine(Indent(2, "Kind: Node.js"));
                 }
                 return res.ToString();
             }
             res.AppendLine("Project: " + name);
-            res.AppendLine(Indent(4, GetProjectPropertiesInfo(project)));
+            res.AppendLine(Indent(1, GetProjectPropertiesInfo(project)));
             return res.ToString();
         }
 
         private static string GetProjectPropertiesInfo(EnvDTE.Project project) {
             var res = new StringBuilder();
             if (Utilities.GuidEquals(Guids.NodejsBaseProjectFactoryString, project.Kind)) {
                 res.AppendLine("Kind: Node.js");
-                foreach (var prop in interestingDteProperties) {
+                foreach (var prop in _interestingDteProperties) {
                     res.AppendLine(prop + ": " + GetProjectProperty(project, prop));
                 }
                 var njsProj = project.GetNodejsProject();
@@ -141,9 +151,85 @@ private static string GetNodeJsProjectProperties(Project.NodejsProjectNode proje
                     jsAnalyzer.DumpLog(writer);
                 }
             }
+            res.AppendLine(GetProjectNpmInfo(project));
+            res.AppendLine(GetProjectFileInfo(project));
+            return res.ToString();
+        }
+
+        /// <summary>
+        /// Stores information about a collection of files of a given type.
+        /// </summary>
+        private class FileTypeInfo {
+            private int _count = 0;
+            private int _maxLineLength = 0;
+            private int _totalLineLength = 0;
+
+            public int Count {
+                get { return _count; }
+            }
+
+            public int MaxLineLength {
+                get { return _maxLineLength; }
+            }
+
+            public int AverageLineLength {
+                get { return _count > 0 ? _totalLineLength / _count : 0; }
+            }
+
+            public void UpdateForFile(string file) {
+                try {
+                    int length = File.ReadLines(file).Count();
+                    ++_count;
+                    _totalLineLength += length;
+                    _maxLineLength = Math.Max(_maxLineLength, length);
+                } catch (IOException) {
+                    // noop
+                }
+            }
+        }
+
+        private static string GetProjectFileInfo(Project.NodejsProjectNode project) {
+            var fileTypeInfo = new Dictionary<string, FileTypeInfo>();
+            foreach (var node in project.DiskNodes) {
+                var file = node.Key;
+                var matchedExt = _interestingFileExtensions.Where(ext => file.EndsWith(ext, StringComparison.OrdinalIgnoreCase)).FirstOrDefault();
+
+                if (!string.IsNullOrEmpty(matchedExt)) {
+                    var recordKey = string.Format("{0} ({1})", matchedExt, node.Value.ItemNode?.IsExcluded ?? true ? "excluded from project" : "included in project");
+                    FileTypeInfo record;
+                    if (!fileTypeInfo.TryGetValue(recordKey, out record)) {
+                        record = fileTypeInfo[recordKey] = new FileTypeInfo();
+                    }
+                    record.UpdateForFile(file);
+                }
+            }
+
+            var res = new StringBuilder();
+
+            res.AppendLine("Project Info:");
+            foreach (var entry in fileTypeInfo) {
+                res.AppendLine(Indent(1, entry.Key + ":"));
+                res.AppendLine(Indent(2, "Number of Files: " + entry.Value.Count));
+                res.AppendLine(Indent(2, "Average Line Count: " + entry.Value.AverageLineLength));
+                res.AppendLine(Indent(2, "Max Line Count: " + entry.Value.MaxLineLength));
+            }
 
             return res.ToString();
         }
+
+        private static string GetProjectNpmInfo(Project.NodejsProjectNode project) {
+            var modules = project?.ModulesNode?.RootPackage?.Modules;
+            if (modules == null) {
+                return "";
+            }
+
+            var res = new StringBuilder();
+            res.AppendLine("Npm Info:");
+            res.AppendLine(Indent(1, string.Format("Number of Top Level Modules: " + modules.Count())));
+
+            return res.ToString();
+        }
+
         private static string GetProjectProperty(EnvDTE.Project project, string name) {
             try {
                 var item = project.Properties.Item(name);
@@ -167,7 +253,7 @@ private static string GetEventsAndStatsInfo() {
                 if (ex.IsCriticalException()) {
                     throw;
                 }
-                res.AppendLine(Indent(4, "Failed to access event log."));
+                res.AppendLine(Indent(1, "Failed to access event log."));
                 res.AppendLine(ex.ToString());
             }
             return res.ToString();
@@ -179,7 +265,7 @@ private static string GetLoadedAssemblyInfo() {
             foreach (var assembly in AppDomain.CurrentDomain.GetAssemblies().OrderBy(assem => assem.FullName)) {
                 var assemFileVersion = assembly.GetCustomAttributes(typeof(AssemblyFileVersionAttribute), false).OfType<AssemblyFileVersionAttribute>().FirstOrDefault();
 
-                res.AppendLine(Indent(4, string.Format("{0}, FileVersion={1}",
+                res.AppendLine(Indent(1, string.Format("{0}, FileVersion={1}",
                     assembly.FullName,
                     assemFileVersion == null ? "(null)" : assemFileVersion.Version)));
             }
@@ -204,7 +290,7 @@ private static string GetAnalysisLevelInfo() {
         }
 
         private static string Indent(int count, string text) {
-            var indent = new string(' ', count);
+            var indent = new string(' ', count * 4);
             var lines = text.Split(new[] { "\r\n", "\r", "\n" }, StringSplitOptions.None);
             var indentedText = lines.Select(line =>
                 string.IsNullOrWhiteSpace(line) ? line : indent + line);