/// <summary>
/// Retrieve a command info object about a command.
/// </summary>
/// <param name="commandName">Name of the command to get a commandinfo object for.</param>
/// <param name="commandTypes">What types of command are needed. If omitted, all types are retrieved.</param>
/// <returns></returns>
public CommandInfo GetCommandInfo(string commandName, CommandTypes?commandTypes = null)
{
if (string.IsNullOrWhiteSpace(commandName))
{
return(null);
}
var key = new CommandLookupKey(commandName, commandTypes);
// Atomically either use PowerShell to query a command info object, or fetch it from the cache
return(_commandInfoCache.GetOrAdd(key, new Lazy <CommandInfo>(() => GetCommandInfoInternal(commandName, commandTypes))).Value);
}
/// <summary>
/// Retrieve a command info object about a command.
/// </summary>
/// <param name="commandName">Name of the command to get a commandinfo object for.</param>
/// <param name="aliasName">The alias of the command to be used in the cache key. If not given, uses the command name.</param>
/// <param name="commandTypes">What types of command are needed. If omitted, all types are retrieved.</param>
/// <returns></returns>
public CommandInfo GetCommandInfo(string commandName, string aliasName = null, CommandTypes?commandTypes = null)
{
if (string.IsNullOrWhiteSpace(commandName))
{
return(null);
}
// If alias name is given, we store the entry under that, but search with the command name
var key = new CommandLookupKey(aliasName ?? commandName, commandTypes);
// Atomically either use PowerShell to query a command info object, or fetch it from the cache
return(_commandInfoCache.GetOrAdd(key, new Lazy <CommandInfo>(() => GetCommandInfoInternal(commandName, commandTypes))).Value);
}