41 lines
1.5 KiB
C#
41 lines
1.5 KiB
C#
|
using System.CommandLine;
|
|||
|
|
using Canon.Generator.GrammarGenerator;
|
|||
|
|
|
|||
|
|
namespace Canon.Generator.Extensions;
|
|||
|
|
|
|||
|
|
public static class RootCommandExtension
|
|||
|
|
{
|
|||
|
|
public static void AddGenerateCommand(this RootCommand rootCommand)
|
|||
|
|
{
|
|||
|
|
Command generateCommand = new("generate", "Generate source files.");
|
|||
|
|
|
|||
|
|
Argument<string> filenameArgument = new(name: "filename",
|
|||
|
|
description: "determines the generated file name.",
|
|||
|
|
getDefaultValue: () => "Canon.g.cs");
|
|||
|
|
generateCommand.AddArgument(filenameArgument);
|
|||
|
|
|
|||
|
|
Option<string> namespaceOption = new(name: "--namespace",
|
|||
|
|
description: "determines the namespace of generated code.",
|
|||
|
|
getDefaultValue: () => "Canon.Generator.GrammarGenerator");
|
|||
|
|
generateCommand.AddOption(namespaceOption);
|
|||
|
|
|
|||
|
|
generateCommand.SetHandler(async (context) =>
|
|||
|
|
{
|
|||
|
|
string filename = context.ParseResult.GetValueForArgument(filenameArgument);
|
|||
|
|
FileInfo generatedFile = new(Path.Combine(Environment.CurrentDirectory, filename));
|
|||
|
|
if (generatedFile.Exists)
|
|||
|
|
{
|
|||
|
|
generatedFile.Delete();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
await using FileStream stream = generatedFile.OpenWrite();
|
|||
|
|
GenerateCommand command = new();
|
|||
|
|
|
|||
|
|
string namespaceValue = context.ParseResult.GetValueForOption(namespaceOption) ?? "Canon.Generator.GrammarGenerator";
|
|||
|
|
await command.GenerateCode(stream, namespaceValue);
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
rootCommand.AddCommand(generateCommand);
|
|||
|
|
}
|
|||
|
|
}
|