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UPGRADE.md

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Upgrading from 2.x to 3.0

  • cli._VERSION has been renamed to cli.VERSION

Function renames

The functions for defining arguments of all types have been renamed to drop the _add prefix from their names. This affects the following functions:

  • cli:add_argument has been renamed to cli:argument
  • cli:add_option has been renamed to cli:option
  • cli:add_flag has been renamed to cli:flag
  • cli:optarg has been renamed to cli:splat

Function alias removals

  • cli:add_opt has been removed. Use cli:option instead
  • cli:add_arg has been removed. Use cli:argument instead
  • cli:parse_args has been removed. Use cli:parse instead

cli:parse() invocation changes

cli:parse() no longer accepts the auxiliary arguments noprint and dump as the second and third arguments; only one argument is now accepted and that is a custom arguments table. If left unspecified, we use the global _G['arg'] program argument table as usual.

So, the new signature is:

cli:parse(args: table) -> table

  • to make the parser silent, use cli:set_silent(true) before invoking the parser
  • to generate the internal state dump, a runtime argument --__DUMP__ must be passed as the first argument

Private function are now hidden

Hopefully you weren't relying on any of these because they are no longer exposed, and they weren't documented. The affected previous exports are:

  • cli:__lookup()
  • cli:__add_opt()