Handle bad credential exception and block update submissions with no changes

src/WingetCreateCLI/Commands/BaseCommand.cs

@@ -149,7 +149,7 @@ public async Task<bool> SetAndCheckGitHubToken(bool cacheToken = false)
 
                 return true;
             }
-            catch
+            catch (Exception e)
             {
                 if (token == cachedToken)
                 {
@@ -158,6 +158,12 @@ public async Task<bool> SetAndCheckGitHubToken(bool cacheToken = false)
                     GitHubOAuth.DeleteTokenCache();
                     return await this.SetAndCheckGitHubToken();
                 }
+                else if (e is AuthorizationException)
+                {
+                    Logger.ErrorLocalized(nameof(Resources.Error_Prefix), e.Message);
+                    Logger.ErrorLocalized(nameof(Resources.InvalidTokenError_Message));
+                    return false;
+                }
                 else
                 {
                     throw;

src/WingetCreateCLI/Commands/NewCommand.cs

@@ -150,18 +150,23 @@ public override async Task<bool> Execute()
 
                 string manifestDirectoryPath = SaveManifestDirToLocalPath(manifests, this.OutputDir);
 
-                if (!ValidateManifest(manifestDirectoryPath) ||
-                    !Prompt.Confirm(Resources.ConfirmGitHubSubmitManifest_Message) ||
-                    !await this.SetAndCheckGitHubToken())
-                {
+                bool isManifestValid = ValidateManifest(manifestDirectoryPath);
+
+                if (isManifestValid && Prompt.Confirm(Resources.ConfirmGitHubSubmitManifest_Message))
+                {
+                    if (await this.SetAndCheckGitHubToken())
+                    {
+                        return commandEvent.IsSuccessful = await this.GitHubSubmitManifests(manifests, this.GitHubToken);
+                    }
+
+                    return false;
+                }
+                else
+                {
                     Console.WriteLine();
-                    Logger.WarnLocalized(nameof(Resources.SkippingPullRequest_Message));
-                    return false;
+                    Logger.WarnLocalized(nameof(Resources.SkippingPullRequest_Message));
+                    return commandEvent.IsSuccessful = isManifestValid;
                 }
-
-                return commandEvent.IsSuccessful = await this.GitHubSubmitManifests(
-                    manifests,
-                    this.GitHubToken);
             }
             finally
             {
@@ -307,7 +312,7 @@ private async Task<bool> PromptPackageIdentifierAndCheckDuplicates(Manifests man
             VersionManifest versionManifest = manifests.VersionManifest;
             versionManifest.PackageIdentifier = PromptProperty(versionManifest, versionManifest.PackageIdentifier, nameof(versionManifest.PackageIdentifier));
 
-            GitHub client = new GitHub(this.GitHubToken, this.WingetRepoOwner, this.WingetRepo);
+            GitHub client = new GitHub(null, this.WingetRepoOwner, this.WingetRepo);
 
             string exactMatch = await client.FindPackageId(versionManifest.PackageIdentifier);
             if (!string.IsNullOrEmpty(exactMatch))

src/WingetCreateCLI/Commands/SubmitCommand.cs

@@ -83,7 +83,7 @@ private async Task<bool> SubmitManifest()
             {
                 List<string> manifestContents = Directory.GetFiles(this.Path).Select(f => File.ReadAllText(f)).ToList();
 
-                Serialization.DeserializeManifestContents(manifestContents, manifests);
+                manifests = Serialization.DeserializeManifestContents(manifestContents);
                 return await this.GitHubSubmitManifests(manifests, this.GitHubToken);
             }
             else

src/WingetCreateCLI/Commands/UpdateCommand.cs

@@ -95,9 +95,18 @@ public override async Task<bool> Execute()
 
             try
             {
+                GitHub client = new GitHub(this.GitHubToken, this.WingetRepoOwner, this.WingetRepo);
+
+                if (!string.IsNullOrEmpty(this.GitHubToken))
+                {
+                    if (!await this.SetAndCheckGitHubToken())
+                    {
+                        return false;
+                    }
+                }
+
                 Logger.DebugLocalized(nameof(Resources.RetrievingManifest_Message), this.Id);
 
-                GitHub client = new GitHub(this.GitHubToken, this.WingetRepoOwner, this.WingetRepo);
                 string exactId = await client.FindPackageId(this.Id);
 
                 if (!string.IsNullOrEmpty(exactId))
@@ -133,9 +142,7 @@ public override async Task<bool> Execute()
         /// <returns>Manifests object representing the updates manifest content, or null if the update failed.</returns>
         public async Task<Manifests> DeserializeExistingManifestsAndUpdate(List<string> latestManifestContent)
         {
-            Manifests manifests = new Manifests();
-
-            Serialization.DeserializeManifestContents(latestManifestContent, manifests);
+            Manifests manifests = Serialization.DeserializeManifestContents(latestManifestContent);
 
             if (manifests.SingletonManifest != null)
             {
@@ -192,27 +199,36 @@ public async Task<Manifests> DeserializeExistingManifestsAndUpdate(List<string>
         /// <returns>Boolean representing whether the manifest was updated successfully or not.</returns>
         public async Task<bool> ExecuteManifestUpdate(List<string> latestManifestContent, CommandExecutedEvent commandEvent)
         {
-            Manifests manifests = await this.DeserializeExistingManifestsAndUpdate(latestManifestContent);
-            if (manifests == null)
+            Manifests originalManifests = Serialization.DeserializeManifestContents(latestManifestContent);
+            Manifests updatedManifests = await this.DeserializeExistingManifestsAndUpdate(latestManifestContent);
+
+            if (updatedManifests == null)
             {
                 return false;
             }
 
-            DisplayManifestPreview(manifests);
+            DisplayManifestPreview(updatedManifests);
 
             if (string.IsNullOrEmpty(this.OutputDir))
             {
                 this.OutputDir = Directory.GetCurrentDirectory();
             }
 
-            string manifestDirectoryPath = SaveManifestDirToLocalPath(manifests, this.OutputDir);
+            string manifestDirectoryPath = SaveManifestDirToLocalPath(updatedManifests, this.OutputDir);
 
             if (ValidateManifest(manifestDirectoryPath))
             {
                 if (this.SubmitToGitHub)
                 {
+                    if (!this.VerifyUpdatedInstallerHash(originalManifests.InstallerManifest, updatedManifests.InstallerManifest))
+                    {
+                        Logger.ErrorLocalized(nameof(Resources.NoChangeDetectedInUpdatedManifest_Message));
+                        Logger.ErrorLocalized(nameof(Resources.CompareUpdatedManifestWithExisting_Message));
+                        return false;
+                    }
+
                     return await this.SetAndCheckGitHubToken()
-                        ? (commandEvent.IsSuccessful = await this.GitHubSubmitManifests(manifests, this.GitHubToken))
+                        ? (commandEvent.IsSuccessful = await this.GitHubSubmitManifests(updatedManifests, this.GitHubToken))
                         : false;
                 }
 
@@ -260,5 +276,18 @@ private static void UpdatePropertyForLocaleManifests(string propertyName, string
                 manifest.GetType().GetProperty(propertyName).SetValue(manifest, value);
             }
         }
+
+        /// <summary>
+        /// Compares the hashes of the original and updated manifests and returns true if the new manifest has an updated SHA256 hash.
+        /// </summary>
+        /// <param name="oldManifest">The original installer manifest object model.</param>
+        /// <param name="newManifest">The updated installer manifest object model.</param>
+        /// <returns>A boolean value indicating whether the updated manifest has new changes compared to the original manifest.</returns>
+        private bool VerifyUpdatedInstallerHash(InstallerManifest oldManifest, InstallerManifest newManifest)
+        {
+            var oldHashes = oldManifest.Installers.Select(i => i.InstallerSha256).Distinct();
+            var newHashes = newManifest.Installers.Select(i => i.InstallerSha256).Distinct();
+            return newHashes.Except(oldHashes).Any();
+        }
     }
 }

src/WingetCreateCLI/Program.cs

@@ -5,6 +5,8 @@ namespace Microsoft.WingetCreateCLI
 {
     using System;
     using System.Collections.Generic;
+    using System.Linq;
+    using System.Reflection;
     using System.Threading.Tasks;
     using CommandLine;
     using CommandLine.Text;
@@ -35,13 +37,15 @@ private static async Task<int> Main(string[] args)
             Logger.Trace($"Command line args: {arguments}");
 
             Parser myParser = new Parser(config => config.HelpWriter = null);
-
-            var parserResult = myParser.ParseArguments<NewCommand, UpdateCommand, SubmitCommand, TokenCommand, SettingsCommand>(args);
-            BaseCommand command = parserResult.MapResult(c => c as BaseCommand, err => null);
+
+            var types = GetVerbs();
+            var parserResult = myParser.ParseArguments(args, types);
+            BaseCommand command = parserResult.MapResult(c => c as BaseCommand, err => null);
+
             if (command == null)
             {
                 DisplayHelp(parserResult as NotParsed<object>);
-                return 1;
+                return args.Any() ? 1 : 0;
             }
 
             try
@@ -61,7 +65,13 @@ private static async Task<int> Main(string[] args)
                 Logger.Error(ex.ToString());
                 return 1;
             }
-        }
+        }
+
+        private static Type[] GetVerbs()
+        {
+            return Assembly.GetExecutingAssembly().GetTypes()
+                .Where(types => types.GetCustomAttribute<VerbAttribute>() != null).ToArray();
+        }
 
         private static void DisplayHelp(NotParsed<object> result)
         {

src/WingetCreateCLI/Properties/Resources.resx

@@ -587,4 +587,13 @@
   <data name="UnexpectedErrorLoadSettings_Message" xml:space="preserve">
     <value>Unexpected error while loading settings. Please verify your settings by running the settings command.</value>
   </data>
+  <data name="CompareUpdatedManifestWithExisting_Message" xml:space="preserve">
+    <value>Please ensure that the updated manifest you are submitting is different from the existing package.</value>
+  </data>
+  <data name="InvalidTokenError_Message" xml:space="preserve">
+    <value>Invalid token provided, please generate a new GitHub token and try again.</value>
+  </data>
+  <data name="NoChangeDetectedInUpdatedManifest_Message" xml:space="preserve">
+    <value>Submitting a manifest without any updated changes is not allowed. </value>
+  </data>
 </root>

src/WingetCreateCore/Common/Serialization.cs

@@ -141,9 +141,11 @@ public static string ConvertYamlToJson(string yaml)
         /// Deserializes a list of manifest strings into their appropriate object models.
         /// </summary>
         /// <param name="manifestContents">List of manifest string contents.</param>
-        /// <param name="manifests">Wrapper object for manifest object models.</param>
-        public static void DeserializeManifestContents(IEnumerable<string> manifestContents, Manifests manifests)
+        /// <returns>Manifest object model.</returns>
+        public static Manifests DeserializeManifestContents(IEnumerable<string> manifestContents)
         {
+            Manifests manifests = new Manifests();
+
             foreach (string content in manifestContents)
             {
                 string trimmedContent = RemoveBom(content);
@@ -171,6 +173,8 @@ public static void DeserializeManifestContents(IEnumerable<string> manifestConte
                     manifests.InstallerManifest = Serialization.DeserializeFromString<InstallerManifest>(trimmedContent);
                 }
             }
+
+            return manifests;
         }
 
         /// <summary>

src/WingetCreateTests/WingetCreateTests/UnitTests/UpdateCommandTests.cs

@@ -66,8 +66,7 @@ public async Task UpdateCommandTest()
             string manifestDir = Utils.GetAppManifestDirPath(TestConstants.TestPackageIdentifier, version);
             var updatedManifestContents = Directory.GetFiles(Path.Combine(this.tempPath, manifestDir)).Select(f => File.ReadAllText(f));
             Assert.IsTrue(updatedManifestContents.Any(), "Updated manifests were not created successfully");
-            var manifestsToValidate = new Manifests();
-            Serialization.DeserializeManifestContents(updatedManifestContents, manifestsToValidate);
+            Manifests manifestsToValidate = Serialization.DeserializeManifestContents(updatedManifestContents);
             Assert.AreEqual(version, manifestsToValidate.VersionManifest.PackageVersion, $"Failed to update version of {TestConstants.TestPackageIdentifier}");
         }
 
@@ -98,8 +97,7 @@ public async Task UpdateAndVerifyUpdatedProperties()
             string version = "1.2.3.4";
             UpdateCommand command = GetUpdateCommand(TestConstants.TestMsiPackageIdentifier, version, this.tempPath);
             List<string> initialManifestContent = GetInitialManifestContent(TestConstants.TestMsiManifest);
-            var initialManifests = new Manifests();
-            Serialization.DeserializeManifestContents(initialManifestContent, initialManifests);
+            Manifests initialManifests = Serialization.DeserializeManifestContents(initialManifestContent);
             var initialInstaller = initialManifests.SingletonManifest.Installers.First();
 
             var updatedManifests = await command.DeserializeExistingManifestsAndUpdate(initialManifestContent);