This reverts commits 24cb8b1..d0abb37 from clap-rs/clap#1840
This is part of #16. clap-rs/clap#1840 wasn't the right call but we
don't have time to make the decision now, so instead of having one
option and changing it in 4.0, this reverts back to clap2 behavior.
- Manually fix some problems
- Run 'cargo fix --clippy'
Commits taken from similar PRs open at that time:
- Replace indexmap remove with swap_remove
Resolves#1562 and closes#1563
- Use cognitive_complexity for clippy lint
Resolves#1564 and closes#1565
- Replace deprecated trim_left_matches with trim_start_matches
Closes#1539
Co-authored-by: Antoine Martin <antoine97.martin@gmail.com>
Co-authored-by: Brian Foley <bpfoley@users.noreply.github.com>
This patch:
* Removes the `ArgSettings::Global` variant, and replaces all
users of it to `Arg::global(...)`. The variant itself is lifted up
into a field on Arg. This was deprecated in clap 2.32.0.
* Removes AppFlags::PropagateGlobalValuesDown. This was deprecated in
clap 2.27.0.
* Removes `Arg::empty_values`. This was deprecated in clap 2.30.0.
* Removes `ArgMatches::usage`. This was deprecated in clap 2.32.0.
subcommands
This commit changes the internal ID to a u64 which will allow for
greater optimizations down the road. In addition, it lays the ground
work for allowing users to use things like enum variants as argument
keys instead of strings.
The only downside is each key needs to be hashed (the implementation
used is an FNV hasher for performance). However, the performance gains
in faster iteration, comparison, etc. should easily outweigh the single
hash of each argument.
Another benefit of if this commit is the removal of several lifetime
parameters, as it stands Arg and App now only have a single lifetime
parameter, and ArgMatches and ArgGroup have no lifetime parameter.
