TYPO3.Flow

Currently the CLI Command resolving is mostly handled by the CLI Request Builder.
But it still has some glitches (see https://review.typo3.org/#change,3298).
Besides there is some duplicated code, as we need to find available commands in various places.

My suggestion is to add a central service that knows all commands (and in which controller they reside) and can also match an input to existing commands.

The API could be:

class CommandManager {

    /**
     * @return array<Command>
     */
    public function getAvailableCommands();

    /**
     * @string $commandIdentifier foo.bar:baz:foos
     * @return Command
     * @throws CommandNotFoundException if no matching command is available
     * @throws AmbiguousCommandIdentifierException if more than one Command matches the identifier (the exception contains the matched commands)
     */
    public function getCommandByIdentifier($commandIdentifier);

}