Allow user-defined options to shadow implicit ones (--help, --version) (#159)

This commit is contained in:
Oleksii Holub
2025-05-12 22:53:08 +03:00
committed by GitHub
parent c40b4f3501
commit 2a02d39dba
6 changed files with 183 additions and 25 deletions

View File

@@ -34,7 +34,7 @@ public class HelpTextSpecs(ITestOutputHelper testOutput) : SpecsBase(testOutput)
}
[Fact]
public async Task I_can_request_the_help_text_by_running_the_application_with_the_help_option()
public async Task I_can_request_the_help_text_by_running_the_application_with_the_implicit_help_option()
{
// Arrange
var commandType = DynamicCommandBuilder.Compile(
@@ -65,7 +65,7 @@ public class HelpTextSpecs(ITestOutputHelper testOutput) : SpecsBase(testOutput)
}
[Fact]
public async Task I_can_request_the_help_text_by_running_the_application_with_the_help_option_even_if_the_default_command_is_not_defined()
public async Task I_can_request_the_help_text_by_running_the_application_with_the_implicit_help_option_even_if_the_default_command_is_not_defined()
{
// Arrange
var commandTypes = DynamicCommandBuilder.CompileMany(
@@ -102,7 +102,7 @@ public class HelpTextSpecs(ITestOutputHelper testOutput) : SpecsBase(testOutput)
}
[Fact]
public async Task I_can_request_the_help_text_for_a_specific_command_by_running_the_application_and_specifying_its_name_with_the_help_option()
public async Task I_can_request_the_help_text_for_a_specific_command_by_running_the_application_and_specifying_its_name_with_the_implicit_help_option()
{
// Arrange
var commandTypes = DynamicCommandBuilder.CompileMany(
@@ -147,7 +147,7 @@ public class HelpTextSpecs(ITestOutputHelper testOutput) : SpecsBase(testOutput)
}
[Fact]
public async Task I_can_request_the_help_text_for_a_specific_nested_command_by_running_the_application_and_specifying_its_name_with_the_help_option()
public async Task I_can_request_the_help_text_for_a_specific_nested_command_by_running_the_application_and_specifying_its_name_with_the_implicit_help_option()
{
// Arrange
var commandTypes = DynamicCommandBuilder.CompileMany(
@@ -476,7 +476,7 @@ public class HelpTextSpecs(ITestOutputHelper testOutput) : SpecsBase(testOutput)
}
[Fact]
public async Task I_can_request_the_help_text_to_see_the_help_and_version_options()
public async Task I_can_request_the_help_text_to_see_the_help_and_implicit_version_options()
{
// Arrange
var commandType = DynamicCommandBuilder.Compile(
@@ -515,7 +515,7 @@ public class HelpTextSpecs(ITestOutputHelper testOutput) : SpecsBase(testOutput)
}
[Fact]
public async Task I_can_request_the_help_text_on_a_named_command_to_see_the_help_option()
public async Task I_can_request_the_help_text_on_a_named_command_to_see_the_implicit_help_option()
{
// Arrange
var commandType = DynamicCommandBuilder.Compile(
@@ -974,7 +974,7 @@ public class HelpTextSpecs(ITestOutputHelper testOutput) : SpecsBase(testOutput)
}
[Fact]
public async Task I_can_request_the_version_text_by_running_the_application_with_the_version_option()
public async Task I_can_request_the_version_text_by_running_the_application_with_the_implicit_version_option()
{
// Arrange
var application = new CliApplicationBuilder()
@@ -992,4 +992,72 @@ public class HelpTextSpecs(ITestOutputHelper testOutput) : SpecsBase(testOutput)
var stdOut = FakeConsole.ReadOutputString();
stdOut.Trim().Should().Be("v6.9");
}
[Fact]
public async Task I_cannot_request_the_help_text_by_running_the_application_with_the_implicit_help_option_if_there_is_an_option_with_the_same_identifier()
{
// Arrange
var commandType = DynamicCommandBuilder.Compile(
// lang=csharp
"""
[Command]
public class DefaultCommand : ICommand
{
[CommandOption("help", 'h')]
public string? Foo { get; init; }
public ValueTask ExecuteAsync(IConsole console) => default;
}
"""
);
var application = new CliApplicationBuilder()
.AddCommand(commandType)
.UseConsole(FakeConsole)
.SetDescription("This will be in help text")
.Build();
// Act
var exitCode = await application.RunAsync(["--help"], new Dictionary<string, string>());
// Assert
exitCode.Should().Be(0);
var stdOut = FakeConsole.ReadOutputString();
stdOut.Should().NotContain("This will be in help text");
}
[Fact]
public async Task I_cannot_request_the_version_text_by_running_the_application_with_the_implicit_version_option_if_there_is_an_option_with_the_same_identifier()
{
// Arrange
var commandType = DynamicCommandBuilder.Compile(
// lang=csharp
"""
[Command]
public class DefaultCommand : ICommand
{
[CommandOption("version")]
public string? Foo { get; init; }
public ValueTask ExecuteAsync(IConsole console) => default;
}
"""
);
var application = new CliApplicationBuilder()
.AddCommand(commandType)
.SetVersion("v6.9")
.UseConsole(FakeConsole)
.Build();
// Act
var exitCode = await application.RunAsync(["--version"], new Dictionary<string, string>());
// Assert
exitCode.Should().Be(0);
var stdOut = FakeConsole.ReadOutputString();
stdOut.Trim().Should().NotBe("v6.9");
}
}

View File

@@ -587,6 +587,86 @@ public class OptionBindingSpecs(ITestOutputHelper testOutput) : SpecsBase(testOu
stdOut.Trim().Should().Be("-13");
}
[Fact]
public async Task I_can_bind_an_option_to_a_property_with_the_same_identifier_as_the_implicit_help_option_and_get_the_correct_value()
{
// Arrange
var commandType = DynamicCommandBuilder.Compile(
// lang=csharp
"""
[Command]
public class Command : ICommand
{
[CommandOption("help", 'h')]
public string? Foo { get; init; }
public ValueTask ExecuteAsync(IConsole console)
{
console.WriteLine(Foo);
return default;
}
}
"""
);
var application = new CliApplicationBuilder()
.AddCommand(commandType)
.UseConsole(FakeConsole)
.Build();
// Act
var exitCode = await application.RunAsync(
["--help", "me"],
new Dictionary<string, string>()
);
// Assert
exitCode.Should().Be(0);
var stdOut = FakeConsole.ReadOutputString();
stdOut.Trim().Should().Be("me");
}
[Fact]
public async Task I_can_bind_an_option_to_a_property_with_the_same_identifier_as_the_implicit_version_option_and_get_the_correct_value()
{
// Arrange
var commandType = DynamicCommandBuilder.Compile(
// lang=csharp
"""
[Command]
public class Command : ICommand
{
[CommandOption("version")]
public string? Foo { get; init; }
public ValueTask ExecuteAsync(IConsole console)
{
console.WriteLine(Foo);
return default;
}
}
"""
);
var application = new CliApplicationBuilder()
.AddCommand(commandType)
.UseConsole(FakeConsole)
.Build();
// Act
var exitCode = await application.RunAsync(
["--version", "1.2.0"],
new Dictionary<string, string>()
);
// Assert
exitCode.Should().Be(0);
var stdOut = FakeConsole.ReadOutputString();
stdOut.Trim().Should().Be("1.2.0");
}
[Fact]
public async Task I_can_try_to_bind_a_required_option_to_a_property_and_get_an_error_if_the_user_does_not_provide_the_corresponding_argument()
{

View File

@@ -2,7 +2,6 @@ using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Runtime.InteropServices;
using System.Threading.Tasks;
using CliFx.Exceptions;
using CliFx.Formatting;
@@ -43,14 +42,14 @@ public class CliApplication(
Configuration.IsPreviewModeAllowed && commandInput.IsPreviewDirectiveSpecified;
private bool ShouldShowHelpText(CommandSchema commandSchema, CommandInput commandInput) =>
commandSchema.IsHelpOptionAvailable && commandInput.IsHelpOptionSpecified
commandSchema.IsImplicitHelpOptionAvailable && commandInput.IsHelpOptionSpecified
||
// Show help text also if the fallback default command is executed without any arguments
commandSchema == FallbackDefaultCommand.Schema
&& !commandInput.HasArguments;
private bool ShouldShowVersionText(CommandSchema commandSchema, CommandInput commandInput) =>
commandSchema.IsVersionOptionAvailable && commandInput.IsVersionOptionSpecified;
commandSchema.IsImplicitVersionOptionAvailable && commandInput.IsVersionOptionSpecified;
private async ValueTask PromptDebuggerAsync()
{

View File

@@ -9,9 +9,9 @@ internal class OptionInput(string identifier, IReadOnlyList<string> values)
public IReadOnlyList<string> Values { get; } = values;
public bool IsHelpOption => OptionSchema.HelpOption.MatchesIdentifier(Identifier);
public bool IsHelpOption => OptionSchema.ImplicitHelpOption.MatchesIdentifier(Identifier);
public bool IsVersionOption => OptionSchema.VersionOption.MatchesIdentifier(Identifier);
public bool IsVersionOption => OptionSchema.ImplicitVersionOption.MatchesIdentifier(Identifier);
public string GetFormattedIdentifier() =>
Identifier switch

View File

@@ -28,9 +28,10 @@ internal partial class CommandSchema(
public bool IsDefault => string.IsNullOrWhiteSpace(Name);
public bool IsHelpOptionAvailable => Options.Contains(OptionSchema.HelpOption);
public bool IsImplicitHelpOptionAvailable => Options.Contains(OptionSchema.ImplicitHelpOption);
public bool IsVersionOptionAvailable => Options.Contains(OptionSchema.VersionOption);
public bool IsImplicitVersionOptionAvailable =>
Options.Contains(OptionSchema.ImplicitVersionOption);
public bool MatchesName(string? name) =>
!string.IsNullOrWhiteSpace(Name)
@@ -74,10 +75,6 @@ internal partial class CommandSchema
var name = attribute?.Name?.Trim();
var description = attribute?.Description?.Trim();
var implicitOptionSchemas = string.IsNullOrWhiteSpace(name)
? new[] { OptionSchema.HelpOption, OptionSchema.VersionOption }
: new[] { OptionSchema.HelpOption };
var properties = type
// Get properties directly on the command type
.GetProperties()
@@ -103,11 +100,25 @@ internal partial class CommandSchema
.WhereNotNull()
.ToArray();
var optionSchemas = properties
.Select(OptionSchema.TryResolve)
.WhereNotNull()
.Concat(implicitOptionSchemas)
.ToArray();
var optionSchemas = properties.Select(OptionSchema.TryResolve).WhereNotNull().ToList();
// Include implicit options, if appropriate
var isImplicitHelpOptionAvailable =
// If the command implements its own help option, don't include the implicit one
!optionSchemas.Any(o => o.MatchesShortName('h') || o.MatchesName("help"));
if (isImplicitHelpOptionAvailable)
optionSchemas.Add(OptionSchema.ImplicitHelpOption);
var isImplicitVersionOptionAvailable =
// Only the default command can have the version option
string.IsNullOrWhiteSpace(name)
&&
// If the command implements its own version option, don't include the implicit one
!optionSchemas.Any(o => o.MatchesName("version"));
if (isImplicitVersionOptionAvailable)
optionSchemas.Add(OptionSchema.ImplicitVersionOption);
return new CommandSchema(type, name, description, parameterSchemas, optionSchemas);
}

View File

@@ -103,7 +103,7 @@ internal partial class OptionSchema
internal partial class OptionSchema
{
public static OptionSchema HelpOption { get; } =
public static OptionSchema ImplicitHelpOption { get; } =
new(
NullPropertyDescriptor.Instance,
"help",
@@ -115,7 +115,7 @@ internal partial class OptionSchema
Array.Empty<Type>()
);
public static OptionSchema VersionOption { get; } =
public static OptionSchema ImplicitVersionOption { get; } =
new(
NullPropertyDescriptor.Instance,
"version",