Fix #218 - handle options with multiple characters in the short option name when only specified in a subcommand

Author: natemcmaster

src/CommandLineUtils/CommandLineApplication.cs

@@ -313,7 +313,11 @@ public CommandOption OptionHelp
         /// </remarks>
         public bool ClusterOptions
         {
-            get => _clusterOptions ?? true;
+            // unless explicitly set, use the value of cluster options from the parent command
+            // or default to true if this is the root command
+            get => _clusterOptions.HasValue
+                ? _clusterOptions.Value
+                : Parent == null || Parent.ClusterOptions;
             set => _clusterOptions = value;
         }
 

src/CommandLineUtils/Internal/CommandLineProcessor.cs

@@ -37,8 +37,6 @@ public CommandLineProcessor(CommandLineApplication command,
             _initialCommand = command;
             _enumerator = new ParameterEnumerator(arguments ?? new string[0]);
 
-            // TODO in 3.0, remove this check, and make ClusterOptions true always
-            // and make it an error to use short options with multiple characters
             if (!command.ClusterOptionsWasSetExplicitly)
             {
                 foreach (var option in AllOptions(command))
@@ -63,7 +61,7 @@ public CommandLineProcessor(CommandLineApplication command,
             }
         }
 
-        static internal IEnumerable<CommandOption> AllOptions(CommandLineApplication command)
+        internal static IEnumerable<CommandOption> AllOptions(CommandLineApplication command)
         {
             foreach (var option in command.Options)
             {

src/CommandLineUtils/releasenotes.props

@@ -1,5 +1,9 @@
 <Project>
   <PropertyGroup>
+    <PackageReleaseNotes Condition="'$(VersionPrefix)' == '2.3.4'">
+Bugs fixed:
+* Handle options with multiple characters in the short option name when only specified in a subcommand
+    </PackageReleaseNotes>
     <PackageReleaseNotes Condition="'$(VersionPrefix)' == '2.3.3'">
 Enhancement:
 * @mpipo: add an API to disable the pager for help text (CommandLineApplication.UsePagerForHelpText)

src/Directory.Build.targets

@@ -4,8 +4,8 @@
     <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
   </PropertyGroup>
 
-  <ItemGroup>
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0-beta-63127-02" PrivateAssets="All" />
+  <ItemGroup Condition=" '$(CI)' == 'true' ">
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0-beta2-18618-05" PrivateAssets="All" />
   </ItemGroup>
 
   <Import Project="..\Directory.Build.targets" />

test/CommandLineUtils.Tests/CommandLineProcessorTests.cs

@@ -182,6 +182,15 @@ public void ItInfersClusterOptionsCannotBeUsed()
                 app.Parse();
                 Assert.False(app.ClusterOptions);
             }
+
+            {
+                // Issue #218
+                var app = new CommandLineApplication();
+                app.Command("sub1", c => { c.Option("-o1", "Option 1", CommandOptionType.SingleValue); });
+                Assert.False(app.ClusterOptionsWasSetExplicitly);
+                app.Parse("sub1", "-o1", "abc");
+                Assert.False(app.ClusterOptions);
+            }
         }
 
         [Fact]

version.props

@@ -1,6 +1,6 @@
 <Project>
   <PropertyGroup>
-    <VersionPrefix>2.3.3</VersionPrefix>
+    <VersionPrefix>2.3.4</VersionPrefix>
     <VersionSuffix>build</VersionSuffix>
     <IncludePreReleaseLabelInPackageVersion Condition="'$(IsStableBuild)' != 'true'">true</IncludePreReleaseLabelInPackageVersion>
     <BuildNumber Condition=" '$(BuildNumber)' == '' ">$(BUILD_NUMBER)</BuildNumber>