Bump clap from 3.0.0-beta.2 to 3.0.0-beta.4

[dependabot]

Bumps clap from 3.0.0-beta.2 to 3.0.0-beta.4.

Changelog

Sourced from clap's changelog.

v3.0.0-beta.4 (2021-08-14)

Minimum Required Rust

• As of this release, clap requires rustc 1.54.0 or greater.

BREAKING CHANGES

Added unicode_help, env features.

• Gated behind env:

  • Arg
    • Arg::env
    • Arg::env_os
    • Arg::hide_env_values
  • ArgSettings
    • ArgSettings::HideEnvValues

• Removed Methods

  • Arg
    • Arg::settings in favor of Arg::setting(Setting1 | Setting2)
    • Arg::multiple in favour of Arg::multiple_values and Arg::multiple_occurrences

• Renamed Settings

  • AppSettings::DisableHelpFlags => AppSettings::DisableHelpFlag
  • AppSettings::DisableVersion => AppSettings::DisableVersionFlag
  • AppSettings::VersionlessSubcommands => AppSettings::DisableVersionForSubcommands

• Renamed Variants

  • ErrorKind
    • ErrorKind::MissingArgumentOrSubcommand => ErrorKind::DisplayHelpOnMissingArgumentOrSubcommand

• Changed

  • Allowing empty values is the default again with ArgSettings::AllowEmptyValues changing to ArgSettings::ForbidEmptyValues
  • AppSettings::GlobalVersion renamed to AppSettings::PropagateVersion and it is not applied globally anymore
  • Arg::env, Arg::env_os, Arg::last, Arg::require_equals, Arg::allow_hyphen_values, Arg::hide_possible_values, Arg::hide_default_value, Arg::hide_env_values, Arg::case_insensitive and Arg::multiple_values does not set ArgSettings::TakesValue anymore
  • Arg::require_delimiter does not set ArgSettings::TakesValue and ArgSettings::UseValueDelimiter anymore
  • Arg::require_equals does not disallow empty values anymore
  • Arg::default_value_if, Arg::default_value_if_os, Arg::default_value_ifs, Arg::default_value_ifs_os now takes the default value parameter as an option
  • Arg::index, Arg::number_of_values, Arg::min_values, Arg::max_values now takes usize
  • Arg::value_delimiter now accepts char instead of &str
  • ArgMatches::is_present does not handle subcommand names anymore
  • Some env var values are considered the same as env var not being present when the arg does not have ArgSettings::TakesValue
  • clap_generate::generate_to now returns Result<PathBuf, io::Error>
  • @group in clap_app! now needs : instead of =>
  • app and arg objects in yaml now allow unknown keys if _has_metadata is set

... (truncated)

Commits

• 52be134 Release 3.0.0-beta.4
• b175222 Fix error
• 73b28fb Release 3.0.0-beta.3
• a9b86ec Update changelog
• c15b894 Merge pull request #2700 from TheDaemoness/patch-1
• f411a65 Fix invalid_value returning an Error with no info
• 203613d Merge pull request #2696 from ldm0/override
• a85857d Make overrides_with working when MultipleValues is enabled.
• 441ff68 Merge pull request #2694 from clap-rs/env-feature
• 52d064b Merge pull request #2693 from clap-rs/value_names
• Additional commits viewable in compare view

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