v2-argh-wrapperv2-argh-wrapper is a library to load command lines and log argh error output.
By default, argh sends its error output to stdout, but v2 components do not support stdout. It takes 15 lines of boilerplate to use the non-default argh entry point and log its output; hence this library.
v2-argh-wrapper provides a single function, pub fn load_command_line<T: argh::FromArgs>() -> Result<T, Error>.
If argh parses the command line successfully, the function returns the FromArgs struct it was parsed into. If the parse was unsuccessful or the args asked for a usage string, load_command_line() will return an anyhow::Error.
This project should be automatically included in builds that depend on it.
v2-argh-wrapper can be used by depending on the //src/diagnostics/lib/util/v2-argh-wrapper gn target and then using the v2-argh-wrapper crate in a rust project.
v2-argh-wrapper is not available in the sdk and is intended to be used only by diagnostics binaries.
This library will be integration-tested by every program that uses it. No unit tests are currently contemplated.