Standardize CLI options & commands

[pavjacko]

Core RNV CLI Options & Commands

FLAGS

Output

change way how console outputs information

--no-color - remove all ANSI coloring & decorations
--no-summary - omit summary box
--no-intro - omit intro box
--json - output in json format
--print-exec - add log for each exec command (child_process)

Log Level

only one accepted from least to most verbose

--silent
--fatal
--error
--warn
--info (default)
--debug
--trace

Interaction

changes interactivity behaviour

--ci - expects no questions otherwise fail
--yes - answer positively/default for any question
--answers <value> - provide specific set of predefined answers
--no-default - guide users trough each relevant option where default would be used (similar to wizard experience)

Command Options

acts like a special command

--help
--version

ENV VARS:

expose options as env vars

RNV_NO_COLOR=1
RNV_JSON=1
RNV_SUMMARY=1
RNV_DEBUG=1
RNV_ANSWERS=<VALUE>

COMMANDS

info - display system info relevant to RNV

update - self upgrade