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c90a4eabae
In looking at other help output, I noticed that they use two spaces, in place of clap's 4, and it doesn't suffer from legibility. If it doesn't make the output worse, let's go ahead and make it as dense so we fit more content on the screen. This is a part of #4132
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1.1 KiB
For more on creating a custom subcommand, see the cargo
book.
The crate clap-cargo can help in
mimicking cargo's interface.
The help looks like:
$ cargo-example-derive --help
Usage: cargo <COMMAND>
Commands:
example-derive A simple to use, efficient, and full-featured Command Line Argument Parser
help Print this message or the help of the given subcommand(s)
Options:
-h, --help Print help information
$ cargo-example-derive example-derive --help
A simple to use, efficient, and full-featured Command Line Argument Parser
Usage: cargo example-derive [OPTIONS]
Options:
--manifest-path <MANIFEST_PATH>
-h, --help Print help information
-V, --version Print version information
Then to directly invoke the command, run:
$ cargo-example-derive example-derive
None
$ cargo-example-derive example-derive --manifest-path Cargo.toml
Some("Cargo.toml")