Only print out valid options for generator

[tfrank64]

When you run yo swiftserver --help we are given multiple options, but a few of them don't work properly. We need to either fix them or remove them. For example, the -h option does not do anything, it just starts the generator.

Review:

• -h
• --skip-cache
• --skip-install

Related to #41

[ghost]

This appears to have been fixed?

[christiancompton]

@ibm-jason do each of the options, particularly --skip-install, --skip-cache behave as expected?

[ghost]

yo swiftserver --skip-install:
https://asciinema.org/a/AEEXYaEatDpsMRwSpQmjQr0zC

yo swiftserver --skip-cache:
https://asciinema.org/a/35HvVTfYr1ixEndHmmGyBllPM

[ghost]

@christiancompton: Question(s):

1. How should I validate --skip-cache option? Is there an answer file that's generated (or something) that stores the answers to the prompted questions, and in this case that file would not be created?

2. Same question for --skip-install- does this mean that the dependency modules like FileKit and SwiftyRequest not built and added to the project?

[christiancompton]

@ibm-jason I am investigating - it seems that these options are really useful for Node/NPM, but it is not immediately clear how they should behave for Swift...

There are several options, documented in our README that should be added to this list, i.e. --bluemix .

[ghost]

@christiancompton - any updates on how each of these options (--skip-cache and --skip-install) would be useful in the Swift sense?

[christiancompton]

Closing as complete.