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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
|
|
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| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>net6.0</TargetFramework> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <Nullable>enable</Nullable> | ||
| </PropertyGroup> | ||
|
|
||
| <ItemGroup> | ||
| </ItemGroup> | ||
|
|
||
| </Project> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| if (!args.Any()) | ||
| { | ||
| Console.Error.WriteLine("No command provided. Possible commands: 'ping', 'generate'."); | ||
| return 1; | ||
| } | ||
|
|
||
| switch (args[0]) | ||
| { | ||
| case "ping": | ||
| Console.WriteLine("pong"); | ||
| return 0; | ||
| case "generate": | ||
| switch (args[1]) | ||
| { | ||
| case "guid": | ||
| Console.WriteLine($"Generated GUID: {Guid.NewGuid()}"); | ||
| return 0; | ||
| case "number": | ||
| return ExecuteGenerateNumberCommand(args.Skip(2).ToArray()); | ||
| default: | ||
| Console.Error.WriteLine("Invalid command. Use 'guid' or 'number'."); | ||
| return 1; | ||
| } | ||
| default: | ||
| Console.WriteLine("Unknown command."); | ||
| return 1; | ||
| } | ||
|
|
||
| int ExecuteGenerateNumberCommand(string[] options) | ||
| { | ||
| int from = 0, to = 100; | ||
|
|
||
| // Parse '--from' argument | ||
| if (options.Contains("--from")) | ||
| { | ||
| var index = Array.IndexOf(options, "--from"); | ||
| var hasFrom = index + 1 < options.Length && int.TryParse(options[index + 1], out from); | ||
| if (!hasFrom) | ||
| { | ||
| Console.Error.WriteLine("Invalid value for --from."); | ||
| return 1; | ||
| } | ||
| } | ||
|
|
||
| // Parse '--to' argument | ||
| if (options.Contains("--to")) | ||
| { | ||
| var index = Array.IndexOf(options, "--to"); | ||
| var hasTo = index + 1 < options.Length && int.TryParse(options[index + 1], out to); | ||
| if (!hasTo) | ||
| { | ||
| Console.Error.WriteLine("Invalid value for --to."); | ||
| return 1; | ||
| } | ||
| } | ||
|
|
||
| // Validate: If 'from' is greater than 'to', error! | ||
| if (from >= to) | ||
| { | ||
| Console.Error.WriteLine("The 'from' value cannot be greater than the 'to' value."); | ||
| return 1; | ||
| } | ||
|
|
||
| // Generate a random number in the specified range | ||
| var number = Random.Shared.Next(from, to); | ||
| Console.WriteLine($"Generated number: {number}"); | ||
| return 0; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
|
|
||
| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>net9.0</TargetFramework> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <Nullable>enable</Nullable> | ||
| </PropertyGroup> | ||
|
|
||
| </Project> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| switch (args) | ||
| { | ||
| case []: | ||
| Console.Error.WriteLine("No command provided. Possible commands: 'ping', 'generate'."); | ||
| return 1; | ||
| case ["ping"]: | ||
| Console.WriteLine("pong"); | ||
| return 0; | ||
| case ["generate", "guid"]: | ||
| Console.WriteLine($"Generated GUID: {Guid.NewGuid()}"); | ||
| return 0; | ||
| case ["generate", "number", ..var options]: | ||
| return ExecuteGenerateNumberCommand(options); | ||
| case ["generate", ..]: | ||
| Console.Error.WriteLine("Invalid command. Use 'guid' or 'number'."); | ||
| return 1; | ||
| default: | ||
| Console.WriteLine("Unknown command."); | ||
| return 1; | ||
| } | ||
|
|
||
| int ExecuteGenerateNumberCommand(string[] options) | ||
| { | ||
| int from = 0, to = 100; | ||
|
|
||
| // Parse '--from' argument | ||
| if (options.Contains("--from")) | ||
| { | ||
| var index = Array.IndexOf(options, "--from"); | ||
| var hasFrom = index + 1 < options.Length && int.TryParse(options[index + 1], out from); | ||
| if (!hasFrom) | ||
| { | ||
| Console.Error.WriteLine("Invalid value for --from."); | ||
| return 1; | ||
| } | ||
| } | ||
|
|
||
| // Parse '--to' argument | ||
| if (options.Contains("--to")) | ||
| { | ||
| var index = Array.IndexOf(options, "--to"); | ||
| var hasTo = index + 1 < options.Length && int.TryParse(options[index + 1], out to); | ||
| if (!hasTo) | ||
| { | ||
| Console.Error.WriteLine("Invalid value for --to."); | ||
| return 1; | ||
| } | ||
| } | ||
|
|
||
| // Validate: If 'from' is greater than 'to', error! | ||
| if (from >= to) | ||
| { | ||
| Console.Error.WriteLine("The 'from' value cannot be greater than the 'to' value."); | ||
| return 1; | ||
| } | ||
|
|
||
| // Generate a random number in the specified range | ||
| var number = Random.Shared.Next(from, to); | ||
| Console.WriteLine($"Generated number: {number}"); | ||
| return 0; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
|
|
||
| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>net9.0</TargetFramework> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <Nullable>enable</Nullable> | ||
| </PropertyGroup> | ||
|
|
||
| <ItemGroup> | ||
| <PackageReference Include="Cocona" Version="2.2.0" /> | ||
| </ItemGroup> | ||
|
|
||
| </Project> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| using Cocona; | ||
| using Cocona.Filters; | ||
|
|
||
| var builder = CoconaApp.CreateBuilder(); | ||
|
|
||
| // Define services here | ||
|
|
||
| var app = builder.Build(); | ||
|
|
||
| // Commands without arguments | ||
| app.AddCommand("ping", () => Console.WriteLine("pong")) | ||
| .WithDescription("Send a ping to the CLI") | ||
| .WithAliases("p") | ||
| .WithFilter(new DelegateCommandFilter(async (ctx, next) => | ||
| { | ||
| Console.WriteLine("Before command execution"); | ||
| await next(ctx); | ||
| Console.WriteLine("After command execution"); | ||
| return 0; | ||
| })); | ||
|
|
||
| // SHOW HELP! | ||
|
|
||
| // Subcommands without arguments | ||
| app.AddSubCommand("generate", group => | ||
| { | ||
| group.AddCommand("guid", () => Console.WriteLine(Guid.NewGuid())); | ||
| group.AddCommand("number", () => Console.WriteLine(Random.Shared.Next(0, 100))); | ||
| }); | ||
|
|
||
|
|
||
| // Commands with arguments | ||
|
|
||
| // option by default, switch to argument | ||
| // app.AddCommand("echo", (string message) => Console.WriteLine(message)); | ||
| app.AddCommand("echo", ([Argument] string message) => Console.WriteLine(message)); | ||
|
|
||
| // Mix and match | ||
| app.AddCommand("repeat", (string message, int times) => | ||
| { | ||
| for (var i = 0; i < times; i++) Console.WriteLine(message); | ||
| }); | ||
|
|
||
| app.Run(); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
|
|
||
| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>net9.0</TargetFramework> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <Nullable>enable</Nullable> | ||
| </PropertyGroup> | ||
|
|
||
| <ItemGroup> | ||
| <PackageReference Include="Microsoft.Extensions.Hosting" Version="6.0.0" /> | ||
| </ItemGroup> | ||
|
|
||
| <ItemGroup> | ||
| <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="9.0.0" /> | ||
| </ItemGroup> | ||
|
|
||
| </Project> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| using Microsoft.Extensions.DependencyInjection; | ||
| using Microsoft.Extensions.Hosting; | ||
| using Microsoft.Extensions.Logging; | ||
|
|
||
| var builder = Host.CreateDefaultBuilder(args); | ||
|
|
||
| builder.ConfigureLogging(logging => { logging.AddFilter("Microsoft", LogLevel.Warning); }); | ||
|
|
||
| builder.ConfigureServices(services => | ||
| { | ||
| services.AddKeyedSingleton("args", args); | ||
| services.AddHostedService<ConsoleHostedService>(); | ||
| }); | ||
|
|
||
| var app = builder.Build(); | ||
|
|
||
| app.Run(); | ||
|
|
||
| // --- | ||
|
|
||
| file class ConsoleHostedService( | ||
| [FromKeyedServices("args")] string[] args, | ||
| IHostApplicationLifetime appLifetime) | ||
| : IHostedService | ||
| { | ||
| public Task StartAsync(CancellationToken cancellationToken) | ||
| { | ||
| appLifetime.ApplicationStarted.Register(() => | ||
| { | ||
| var exitCode = Handle(); | ||
| Environment.ExitCode = exitCode; | ||
| }); | ||
|
|
||
| return Task.CompletedTask; | ||
| } | ||
|
|
||
| public Task StopAsync(CancellationToken cancellationToken) => Task.CompletedTask; | ||
|
|
||
| private int Handle() | ||
| { | ||
| switch (args) | ||
| { | ||
| case []: | ||
| Console.WriteLine("No command provided. Possible commands: 'ping', 'generate'."); | ||
| return 1; | ||
| case ["ping"]: | ||
| Console.WriteLine("pong"); | ||
| return 0; | ||
| case ["generate", "guid"]: | ||
| { | ||
| // Generate a GUID | ||
| Guid guid = Guid.NewGuid(); | ||
| Console.WriteLine($"Generated GUID: {guid}"); | ||
| return 0; | ||
| } | ||
| case ["generate", "number", .. var options]: | ||
| { | ||
| int from = 0, to = 100; | ||
| bool hasFrom = false, hasTo = false; | ||
|
|
||
| // Parse '--from' argument | ||
| if (options.Contains("--from")) | ||
| { | ||
| var index = Array.IndexOf(options, "--from"); | ||
| hasFrom = index + 1 < options.Length && int.TryParse(options[index + 1], out from); | ||
| if (!hasFrom) | ||
| { | ||
| Console.WriteLine("Invalid value for --from."); | ||
| return 1; | ||
| } | ||
| } | ||
|
|
||
| // Parse '--to' argument | ||
| if (options.Contains("--to")) | ||
| { | ||
| var index = Array.IndexOf(options, "--to"); | ||
| hasTo = index + 1 < options.Length && int.TryParse(options[index + 1], out to); | ||
| if (!hasTo) | ||
| { | ||
| Console.WriteLine("Invalid value for --to."); | ||
| return 1; | ||
| } | ||
| } | ||
|
|
||
| // Validate if 'from' is greater than 'to' | ||
| if (hasFrom && hasTo && from > to) | ||
| { | ||
| Console.WriteLine("The 'from' value cannot be greater than the 'to' value."); | ||
| return 1; | ||
| } | ||
|
|
||
| // Generate a random number in the specified range | ||
| Random rand = new Random(); | ||
| var number = rand.Next(from, to + 1); // The upper bound is exclusive, so add +1 to include 'to' | ||
| Console.WriteLine($"Generated number: {number}"); | ||
| return 0; | ||
| } | ||
| case ["generate", ..]: | ||
| Console.WriteLine("Invalid command. Use 'guid' or 'number'."); | ||
| return 1; | ||
| default: | ||
| Console.WriteLine("Unknown command."); | ||
| return 1; | ||
| } | ||
| } | ||
| } |
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