VersionOptionFromAssemblyAttributes - no documentation for template

[digitaldias]

I'm setting up a small app and wanted to customize the version string returned by --version.
I need help finding where in the documentation the template argument's content should look like.
Currently, I have this:

app.VersionOptionFromAssemblyAttributes("", Assembly.GetExecutingAssembly());

Which, of course, won't work! :)

Can someone please advise?

[natemcmaster]

Checkout how app.VersionOptionFromAssemblyAttributes is implemented. It's a helper method that just calls .VersionOption. If you want to customize things, use .VersionOption instead

CommandLineUtils/src/CommandLineUtils/CommandLineApplicationExtensions.cs

Lines 145 to 182 in 81199c7

	/// <summary>
	/// Finds <see cref="AssemblyInformationalVersionAttribute"/> on <paramref name="assembly"/> and uses that
	/// to set <see cref="CommandLineApplication.OptionVersion"/>.
	/// <para>
	/// Uses the Version that is part of the <see cref="AssemblyName"/> of the specified assembly
	/// if no <see cref="AssemblyInformationalVersionAttribute"/> is applied.
	/// </para>
	/// </summary>
	/// <param name="app"></param>
	/// <param name="assembly"></param>
	/// <exception cref="ArgumentNullException">Either <paramref name="app"/> or <paramref name="assembly"/> is <c>null</c>.</exception>
	public static CommandOption VersionOptionFromAssemblyAttributes(this CommandLineApplication app, Assembly assembly)
	=> VersionOptionFromAssemblyAttributes(app, Strings.DefaultVersionTemplate, assembly);
	/// <summary>
	/// Finds <see cref="AssemblyInformationalVersionAttribute"/> on <paramref name="assembly"/> and uses that
	/// to set <see cref="CommandLineApplication.OptionVersion"/>.
	/// <para>
	/// Uses the Version that is part of the <see cref="AssemblyName"/> of the specified assembly
	/// if no <see cref="AssemblyInformationalVersionAttribute"/> is applied.
	/// </para>
	/// </summary>
	/// <param name="app"></param>
	/// <param name="template"></param>
	/// <param name="assembly"></param>
	/// <exception cref="ArgumentNullException">Either <paramref name="app"/> or <paramref name="assembly"/> is <c>null</c>.</exception>
	public static CommandOption VersionOptionFromAssemblyAttributes(this CommandLineApplication app, string template, Assembly assembly)
	=> app.VersionOption(template, GetInformationalVersion(assembly));
	private static string? GetInformationalVersion(Assembly assembly)
	{
	var infoVersion = assembly
	?.GetCustomAttribute<AssemblyInformationalVersionAttribute>()
	?.InformationalVersion;
	return string.IsNullOrWhiteSpace(infoVersion)
	? assembly?.GetName().Version.ToString()
	: infoVersion;
	}

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