Change Output format to match PR feedback

Don't use Environment.Exit()

PR Feedback, Unecessary Usings and Immutable types

scripts/compile.sh

@@ -120,8 +120,8 @@ header "Testing stage2 End to End ..."
 DOTNET_HOME=$STAGE2_DIR DOTNET_TOOLS=$STAGE2_DIR $DIR/test/e2e-test.sh
 
 # Run Validation for Project.json dependencies
-dotnet publish "$REPOROOT/tools/MultiProjectValidator" -o "$OUTPUT_DIR/../tools"
+dotnet publish "$REPOROOT/tools/MultiProjectValidator" -o "$STAGE2_DIR/../tools"
 #TODO for release builds this should fail
 set +e
-"$OUTPUT_DIR/tools/pjvalidate" "$REPOROOT/src"
+"$STAGE2_DIR/../tools/pjvalidate" "$REPOROOT/src"
 set -e

tools/MultiProjectValidator/AnalysisResult.cs

@@ -1,7 +1,4 @@
-using System;
 using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
 
 namespace MultiProjectValidator
 {

tools/MultiProjectValidator/AnalysisRules/DependencyMismatch/DependencyGroup.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+
+namespace ProjectSanity.AnalysisRules.DependencyMismatch
+{
+    internal class DependencyGroup
+    {
+        public static DependencyGroup CreateWithEntry(DependencyInfo dependencyInfo)
+        {
+            var dependencyGroup = new DependencyGroup
+            {
+                DependencyName = dependencyInfo.Name,
+                VersionDependencyInfoMap = new Dictionary<string, List<DependencyInfo>>()
+            };
+
+            dependencyGroup.AddEntry(dependencyInfo);
+
+            return dependencyGroup;
+        }
+
+        public string DependencyName { get; private set; }
+        public Dictionary<string, List<DependencyInfo>> VersionDependencyInfoMap { get; private set; }
+
+        public bool HasConflict
+        {
+            get
+            {
+                return VersionDependencyInfoMap.Count > 1;
+            }
+        }
+
+        public void AddEntry(DependencyInfo dependencyInfo)
+        {
+            if (!dependencyInfo.Name.Equals(DependencyName, StringComparison.OrdinalIgnoreCase))
+            {
+                throw new Exception("Added dependency does not match group");
+            }
+
+            if (VersionDependencyInfoMap.ContainsKey(dependencyInfo.Version))
+            {
+                VersionDependencyInfoMap[dependencyInfo.Version].Add(dependencyInfo);
+            }
+            else
+            {
+                VersionDependencyInfoMap[dependencyInfo.Version] = new List<DependencyInfo>()
+                {
+                    dependencyInfo
+                };
+            }
+        }
+
+    }
+}

tools/MultiProjectValidator/AnalysisRules/DependencyMismatch/DependencyInfo.cs

@@ -0,0 +1,21 @@
+using Microsoft.DotNet.ProjectModel;
+
+namespace ProjectSanity.AnalysisRules.DependencyMismatch
+{
+    internal class DependencyInfo
+    {
+        public static DependencyInfo Create(ProjectContext context, LibraryDescription library)
+        {
+            return new DependencyInfo
+            {
+                ProjectPath = context.ProjectFile.ProjectFilePath,
+                Version = library.Identity.Version.ToString(),
+                Name = library.Identity.Name
+            };
+        }
+
+        public string ProjectPath { get; private set; }
+        public string Version { get; private set; }
+        public string Name { get; private set; }
+    }
+}

tools/MultiProjectValidator/AnalysisRules/DependencyMismatchRule.cs

@@ -1,8 +1,9 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Threading.Tasks;
 using Microsoft.DotNet.ProjectModel;
+using System.Text;
+using ProjectSanity.AnalysisRules.DependencyMismatch;
 
 namespace MultiProjectValidator.AnalysisRules
 {
@@ -12,62 +13,73 @@ namespace MultiProjectValidator.AnalysisRules
         {
             var targetGroupedContexts = GroupContextsByTarget(projectContexts);
 
-            var failureMessages = EvaluateTargetContextGroups(targetGroupedContexts);
+            var failureMessages = EvaluateProjectContextTargetGroups(targetGroupedContexts);
             var pass = failureMessages.Count == 0;
 
             var result = new AnalysisResult(failureMessages, pass);
             return result;
         }
 
-        private List<string> EvaluateTargetContextGroups(Dictionary<string, List<ProjectContext>> targetGroupedContexts)
+        private List<string> EvaluateProjectContextTargetGroups(Dictionary<string, List<ProjectContext>> targetGroupedProjectContexts)
         {
             var failureMessages = new List<string>();
 
-            foreach (var target in targetGroupedContexts.Keys)
+            foreach (var target in targetGroupedProjectContexts.Keys)
             {
-                var targetContexts = targetGroupedContexts[target];
+                var targetProjectContextGroup = targetGroupedProjectContexts[target];
 
-                failureMessages.AddRange(EvaluateTargetContextGroup(targetContexts));
+                var groupFailureMessages = EvaluateProjectContextTargetGroup(targetProjectContextGroup);
+
+                if (groupFailureMessages.Count > 0)
+                {
+                    string aggregateFailureMessage = $"Failures for Target {target} {Environment.NewLine}{Environment.NewLine}"
+                                                 + string.Join("", groupFailureMessages);
+
+                    failureMessages.Add(aggregateFailureMessage);
+                }
             }
 
             return failureMessages;
         }
 
-        private List<string> EvaluateTargetContextGroup(List<ProjectContext> targetContexts)
+        private List<string> EvaluateProjectContextTargetGroup(List<ProjectContext> targetProjectContextGroup)
         {
             var failedMessages = new List<string>();
-            var assemblyVersionMap = new Dictionary<string, string>();
 
-            foreach(var context in targetContexts)
+            var dependencyGroups = CreateDependencyGroups(targetProjectContextGroup);
+
+            
+            foreach (var dependencyGroup in dependencyGroups)
             {
-                var libraries = context.LibraryManager.GetLibraries();
+                if(dependencyGroup.HasConflict)
-
-                foreach(var library in libraries)
                 {
-                    var name = library.Identity.Name;
+                    failedMessages.Add(GetDependencyGroupConflictMessage(dependencyGroup));
-                    var version = library.Identity.Version.ToString();
-
-                    if (assemblyVersionMap.ContainsKey(name))
-                    {
-                        var existingVersion = assemblyVersionMap[name];
-                        if (!string.Equals(existingVersion, version, StringComparison.OrdinalIgnoreCase))
-                        {
-                            string message = 
-                                $"Dependency mismatch in {context.ProjectFile.ProjectFilePath} for dependency {name}. Versions {version}, {existingVersion}";
-
-                            failedMessages.Add(message);
-                        }
-                    }
-                    else
-                    {
-                        assemblyVersionMap[name] = version;
-                    }
                 }
             }
 
             return failedMessages;
         }
 
+        private string GetDependencyGroupConflictMessage(DependencyGroup dependencyGroup)
+        {
+            StringBuilder sb = new StringBuilder();
+
+            sb.Append($"Conflict for {dependencyGroup.DependencyName} in projects:{Environment.NewLine}");
+            
+            foreach (var version in dependencyGroup.VersionDependencyInfoMap.Keys)
+            {
+                var dependencyInfoList = dependencyGroup.VersionDependencyInfoMap[version];
+                
+                foreach (var dependencyInfo in dependencyInfoList)
+                {
+                    sb.Append($"Version: {dependencyInfo.Version} Path: {dependencyInfo.ProjectPath} {Environment.NewLine}");
+                }
+            }
+            sb.Append(Environment.NewLine);
+
+            return sb.ToString();
+        }
+
         private Dictionary<string, List<ProjectContext>> GroupContextsByTarget(List<ProjectContext> projectContexts)
         {
             var targetContextMap = new Dictionary<string, List<ProjectContext>>();
@@ -90,5 +102,39 @@ namespace MultiProjectValidator.AnalysisRules
 
             return targetContextMap;
         }
+
+        private List<DependencyGroup> CreateDependencyGroups(List<ProjectContext> projectContexts)
+        {
+            var libraryNameDependencyGroupMap = new Dictionary<string, DependencyGroup>();
+
+            foreach (var projectContext in projectContexts)
+            {
+                var libraries = projectContext.LibraryManager.GetLibraries();
+
+                foreach (var library in libraries)
+                {
+                    var dependencyInfo = DependencyInfo.Create(projectContext, library);
+
+                    if (libraryNameDependencyGroupMap.ContainsKey(dependencyInfo.Name))
+                    {
+                        var dependencyGroup = libraryNameDependencyGroupMap[dependencyInfo.Name];
+
+                        dependencyGroup.AddEntry(dependencyInfo);
+                    }
+                    else
+                    {
+                        var dependencyGroup = DependencyGroup.CreateWithEntry(dependencyInfo);
+
+                        libraryNameDependencyGroupMap[dependencyInfo.Name] = dependencyGroup;
+                    }
+                }
+            }
+           
+            return libraryNameDependencyGroupMap.Values.ToList();
+        }
+
+       
+
+       
     }
 }

tools/MultiProjectValidator/IAnalysisRule.cs

@@ -1,7 +1,4 @@
-using System;
+using System.Collections.Generic;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
 using Microsoft.DotNet.ProjectModel;
 
 namespace MultiProjectValidator

tools/MultiProjectValidator/Program.cs

@@ -10,7 +10,17 @@ namespace MultiProjectValidator
     {
         public static int Main(string[] args)
         {
-            var rootPath = ParseAndValidateArgs(args);
+
+            string rootPath = null;
+
+            try
+            {
+                rootPath = ParseAndValidateArgs(args);
+            }
+            catch
+            {
+                return 1;
+            }
 
             List<ProjectContext> projects = null;
             try
@@ -20,7 +30,7 @@ namespace MultiProjectValidator
             catch(Exception e)
             {
                 Console.WriteLine("Failed to load projects from path: " + rootPath);
-                Exit(1);
+                return 1;
             }
 
             var analyzer = ProjectAnalyzer.Create(projects);
@@ -80,7 +90,7 @@ namespace MultiProjectValidator
             if (args.Length != 1)
             {
                 PrintHelp();
-                Exit(1);
+                throw new Exception();
             }
 
             string rootPath = args[0];
@@ -88,17 +98,12 @@ namespace MultiProjectValidator
             if (!Directory.Exists(rootPath))
             {
                 Console.WriteLine("Root Directory does not exist: " + rootPath);
-                Exit(1);
+                throw new Exception();
             }
 
             return rootPath;
         }
         
-        private static void Exit(int code)
-        {
-            Environment.Exit(code);
-        }
-        
         private static void PrintHelp()
         {
             var help = @"

tools/MultiProjectValidator/ProjectAnalyzer.cs

@@ -1,7 +1,4 @@
-using System;
+using System.Collections.Generic;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
 using Microsoft.DotNet.ProjectModel;
 using MultiProjectValidator.AnalysisRules;
 

tools/MultiProjectValidator/ProjectLoader.cs

@@ -1,8 +1,5 @@
-using System;
+using System.IO;
-using System.IO;
 using System.Collections.Generic;
-using System.Linq;
-using System.Threading.Tasks;
 using Microsoft.DotNet.ProjectModel;
 
 namespace MultiProjectValidator