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Hi, I want to learn clap for command line parsing and I'm wondering why there are two different ways to do it. Whats the difference? Whats the preferred or recommended way? |
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We briefly discuss which to use in our FAQ, see https://docs.rs/clap/latest/clap/_faq/index.html#when-should-i-use-the-builder-vs-derive-apis For most users, the main difference is whether you define your CLI through attributes on a struct and its fields or use a builder API. Nearly all of the builder functionality is exposed through the derive API. |
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Thanks for the quick answer. I compared both examples and I think I try it with derive first. |
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We briefly discuss which to use in our FAQ, see https://docs.rs/clap/latest/clap/_faq/index.html#when-should-i-use-the-builder-vs-derive-apis
For most users, the main difference is whether you define your CLI through attributes on a struct and its fields or use a builder API. Nearly all of the builder functionality is exposed through the derive API.