`#[clap(about)]` only overrides `about`. If the doc comment also sets
`long_about`, it won't be overridden. This change is to help raise
visibility of reseting `long_about` in these cases.
`clap_generate` originally intended to be "generate anything". With
`fig`, we already broke one part out. With #3174's man support, we are
also looking at keeping it separate:
- More freedom to iterate on the API
- Uniqueness (and potential weight) of its dependencies
- man generation is normally more for distribution while completions are
a mix of being distributed with the app or the app generating the
completions (which will be exacerbated if we move most completion
parsing logic to be in Rust)
So `clap_generate` is having a lot more limited of a role than the
original name conveys. I worry the generic name will be a hindrance to
people discovering and using it (yes, documentation can help but there
are limits).
I hesitated because we are on the verge of releasing 3.0. However, doing
it even later will be even more disruptive because more people will be
using it (crates.io lists ~70 people using `clap_generate`).
To ease things, we are still releasing `clap_generate` as a wrapper
around `clap_complete`.
This creates distinct tutorial examples from complex feature examples
(more how-tos). Both sets are getting builder / derive versions (at
least the critical ones).
I've been finding I've been setting `AppSettings` without it which is
likely leading to bugs. This tries to raise the visibility by using it
based on the setting being used and not whether the application needs
it.
Too many times people have to disable default features. Let's try to
have a more minimal out of box experience.
- `derive`: people are already used to adding this feature for serde
- `cargo`: not needed for derive
- `env`: most probably don't use this
- `unicode`: most CLIs are probably ASCII. We should do a debug warn
about this though
BREAKING CHANGE: `derive`, `cargo`, `env`, and `unicode` are no longer
on by default.
Since usage parser and yaml are on the way to being deprecated (#8, #9),
doing a rename also seems excessive, so rolling it back.
Past relevant PRs:
- clap-rs/clap#1157
- clap-rs/clap#1257
