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clap/examples/09_cargo_metadata.md
Ed Page bfa02fd418 test: More thoroughly test examples 
This ports our example testing over to [trycmd](https://docs.rs/) so
we can:
- More thoroughly test our examples
- Provide always-up-to-date example usage

The old way of testing automatically picked up examples.  This new way
requires we have a `.md` file that uses the example in some way.

Notes:
- Moved overall example description to the `.md` file
- I added cross-linking between related examples
- `14_groups` had a redundant paragraph (twice talked about "one and
  only one"
2021-11-23 13:13:41 -06:00

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You can have clap pull the application metadata directly from your Cargo.toml using the app_from_crate!() macro.

$ 09_cargo_metadata --help
clap 3.0.0-beta.5

Kevin K. <kbknapp@gmail.com>:Clap Maintainers

A simple to use, efficient, and full-featured Command Line Argument Parser

USAGE:
    09_cargo_metadata[EXE]

OPTIONS:
    -h, --help       Print help information
    -V, --version    Print version information
$ 09_cargo_metadata --version
...

(censored to keep the release process easy)