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Allow custom help providers (#1259)

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Allow custom help providers

* Version option will show in help even with a default command

* Reserve `-v` and `--version` as special Spectre.Console command line arguments (nb. breaking change for Spectre.Console users who have a default command with a settings class that uses either of these switches).

* Help writer correctly determines if trailing commands exist and whether to display them as optional or mandatory in the usage statement.

* Ability to control the number of indirect commands to display in the help text when the command itself doesn't have any examples of its own. Defaults to 5 (for backward compatibility) but can be set to any integer or zero to disable completely.

* Significant increase in unit test coverage for the help writer.

* Minor grammatical improvements to website documentation.
This commit is contained in:
Frank Ray
2023-09-08 08:51:33 +01:00
committed by GitHub
parent 813a53cdfa
commit 131b37fff8
70 changed files with 1646 additions and 330 deletions
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13
src/Spectre.Console.Cli/Internal/Configuration/Configurator.cs
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@ -19,6 +19,19 @@ internal sealed class Configurator : IUnsafeConfigurator, IConfigurator, IConfig
Settings = new CommandAppSettings(registrar);
Examples = new List<string[]>();
}
public void SetHelpProvider(IHelpProvider helpProvider)
{
// Register the help provider
_registrar.RegisterInstance(typeof(IHelpProvider), helpProvider);
}
public void SetHelpProvider<T>()
where T : IHelpProvider
{
// Register the help provider
_registrar.Register(typeof(IHelpProvider), typeof(T));
}
public void AddExample(params string[] args)
{