CBA

Cli Boilerplate Automation. A small library of assorted utilities for cli tool development.

Modules

Bogger

A stateful logger for displaying messages styled according to their level. The standard initialization method writes a message like the following to stdout/stderr:

[ERROR: tag] my_content.

where the tag is colored.

The logger can be configured at runtime to filter, downcast, pause and forward the messages it recieves.

Additionally, format!-like macros are provided: ebog!("{my_content}"; "{optional_tag}").

Extension traits for unwrapping

The extension traits and logging macros follow a general naming pattern of {level}{bog/log}. For example, result.elog() calls log::error! on the error. Each such function also has a variant whose name is prefixed with _ which consumes the error, downgrading Results to Options, and Option<T> to T (or else exiting the program with code 1). prefix() and context() can be used to add context to the error.

A standard pattern to handle non-fatal errors under this paradigm is like so:

let x = try()
	.prefix("Failed to copy") // {e} -> Failed to copy: {e}
	._wbog() // pretty print the warning and consume the error

Bath/Bo/Broc/Bs

Simple wrappers around standard library modules (path, io, process, fs) for more ergonomic usage. A few of these operations take the liberty of logging (or bogging) errors instead of propogating them, downgrading them to Option or bool.

Macros/Traits/Other/...

• macros for defining wrapper types
• debug_assertion gated functions
• more random extension traits
• vec_! and prints!
• initialization helpers

Optional features

• text: text utilities