Update Cargo Dependencies (major) #60

renovate · 2022-09-28T19:36:48Z

This PR contains the following updates:

Package	Type	Update	Change
clap	dependencies	major	`3.2.16` -> `4.0.0`
clap_complete	dependencies	major	`3.2.3` -> `4.0.0`
dirs	dependencies	major	`4.0.0` -> `5.0.0`
handlebars	dependencies	major	`4.3.3` -> `6.0.0`
thiserror	dependencies	major	`1.0.31` -> `2.0.0`

Release Notes

clap-rs/clap (clap)

`v4.5.20`

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Features

(unstable) Add CommandExt

`v4.5.19`

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Internal

Update dependencies

`v4.5.18`

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Features

(builder) Expose Arg::get_display_order and Command::get_display_order

`v4.5.17`

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Fixes

(help) Style required argument groups
(derive) Improve error messages when unsupported fields are used

`v4.5.16`

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Fixes

(derive) Improve error messages when derive feature is missing

`v4.5.15`

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Compatiblity

(unstable-ext) Arg::remove changed return types

Fixes

(unstable-ext) Make Arg::remove return the removed item

`v4.5.14`

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Features

(unstable-ext) Added Arg::add for attaching arbitrary state, like completion hints, to Arg without Arg knowing about it

`v4.5.13`

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Fixes

(derive) Improve error message when #[flatten]ing an optional #[group(skip)]
(help) Properly wrap long subcommand descriptions in help

Fixes

(error) When defining a custom help flag, be sure to suggest it like we do the built-in one

`v4.5.8`

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Fixes

Reduce extra flushes

`v4.5.7`

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Fixes

Clean up error message when too few arguments for num_args

`v4.5.6`

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`v4.5.5`

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Fixes

Allow exclusive to override required_unless_present, required_unless_present_any, required_unless_present_all

`v4.5.4`

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Fixes

(derive) Allow non-literal #[arg(id)] attributes again

`v4.5.3`

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Internal

(derive) Update heck

`v4.5.2`

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Features

(unstable) Add CommandExt

`v4.5.1`

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Internal

Update dependencies

`v4.5.0`

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Compatibility

Update MSRV to 1.74

`v4.4.18`

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Fixes

(error) When lacking usage feature, ensure the list of required arguments is unique

`v4.4.17`

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Fixes

Fix panic! when mixing args_conflicts_with_subcommands with ArgGroup (which is implicit with derive) introduced in 4.4.15

`v4.4.16`

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Fixes

Ensure invalid escape sequences in user-defined strings are correctly stripped when terminal doesn't support color

`v4.4.15`

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Fixes

Improve error for args_conflicts_with_subcommands
Ensure we error for args_conflicts_with_subcommands when using subcommand short and long flags

`v4.4.14`

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Documentation

Fix find cookbook entry to allow repeats of flags/options

Features

Allow num_args(0) on options which allows making them emulate being a flag for position-tracking flags

`v4.4.13`

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Documentation

Fix link to structopt migration guide

`v4.4.12`

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Performance

Only ask TypedValueParser for possible values if needed

`v4.4.11`

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Features

Add Command::mut_group

`v4.4.10`

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Documentation

Link out to changelog
Cross link derive's attribute reference to derive tutorial

`v4.4.9`

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Fixes

(help) Show correct Command::about under flattened headings
(help) Respect hide when flattening subcommands

`v4.4.8`

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Features

Add Command::flatten_help to allow git stash -h like help for subcommands

`v4.4.7`

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Performance

Reduced code size

`v4.4.6`

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Internal

Upgrade anstream

`v4.4.5`

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Fixes

(parser) When inferring subcommand name or long_flag, allow ambiguous-looking matches that unambiguously map back to the same command
(parser) When inferring subcommand long_flag, don't panic
(assert) Clarify what action is causing a positional that doesn't set values which is especially useful for derive users

`v4.4.4`

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Internal

Update terminal_size to 0.3

`v4.4.3`

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Documentation

(derive) Clarify use of attributes within the tutorial
Split sections in the builder and derive tutorials into separate modules

`v4.4.2`

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Performance

Improve build times by removing once_cell dependency

`v4.4.1`

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Fixes

(error) When lacking usage feature, ensure the list of required arguments is unique

`v4.4.0`

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compatibility

update msrv to 1.70.0

`v4.3.24`

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Fixes

Ensure column padding is preserved in --help with custom templates

`v4.3.23`

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Fixes

Fixed UnknownArgumentValueParser to not error on flag's absence

`v4.3.22`

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Features

Add UnknownArgumentValueParser for injecting errors for improving the experience with errors

`v4.3.21`

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Features

Expose TryMapValueParser so the type can be named

`v4.3.20`

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Features

Command::mut_args for modifying all arguments en masse

`v4.3.19`

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Fixes

(parse) Respect value_terminator even in the presence of later multiple-value positional arguments

`v4.3.18`

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Fixes

(parse) Suggest -- in fewer places where it won't work

`v4.3.17`

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Fixes

(help) Address a regression in wrapping PossibleValue descriptions in --help

`v4.3.16`

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Fixes

Don't assert when stateful value parsers fail on defaults (e.g. checking if a path exists)

`v4.3.15`

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Features

(unstable-styles) Re-export anstyle

Documentation

(unstable-styles) Provide more examples

`v4.3.14`

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Features

ArgAction::HelpShort and ArgAction::HelpLong for explicitly specifying which style of help to display

Fixes

Skip [OPTIONS] in usage if a help or version ArgAction is used

`v4.3.13`

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`v4.3.12`

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Fixes

(derive) Don't error on enum variant field attributes

`v4.3.11`

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Features

(derive) Support fields wrapped in num::Wrapping, Box, or Arc
(derive) Support Box<str>, Box<OsStr>, and Box<Path>

`v4.3.10`

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Performance

Drop a dependency, reducing binary size by 1.3 KiB

`v4.3.9`

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Fixes

Command::ignore_errors no longer masks help/version

`v4.3.8`

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Fixes

Error on ambiguity with infer_long_arg, rather than arbitrarily picking one, matching the documentation and subcommand's behavior

`v4.3.7`

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Documentation

Further clarify magic behavior in derive tutorial
Further clarify derive API's relationship to builder within the tutorial

`v4.3.6`

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Documentation

Suggest clio

`v4.3.5`

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ColorChoice::possible_values is added to simplify things for builder users

Fixes

ColorChoice::to_possible_value no longer includes descriptions, encouraging shorter help where possible

`v4.3.4`

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Features

Add Error::exit_code

`v4.3.3`

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Features

Command::defer for delayed initialization of subcommands to reduce startup times of large applications like deno

`v4.3.2`

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Fixes

Ensure column padding is preserved in --help with custom templates

`v4.3.1`

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Fixes

(parse) Respect value_terminator even in the presence of later multiple-value positional arguments

`v4.3.0`

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Fixes

(assert) Allow multiple, value-terminated, positional arguments
(assert) Clear up language on last assertion
(parser) Correctly assign values to arguments when using multiple, value-termianted, positional arguments
(parser) Ensure value_terminator has higher precedence than allow_hyphen_values
(help) Only use next-line-help on subcommand list when explicitly specified, not just with --help
(help) Correctly align possible values list
(help) Don't waste code, vertical space in moving possible value descriptions to next line

`v4.2.7`

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Fixes

Correctly track remaining length for iterators provided by ArgMatches

`v4.2.6`

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Features

impl Eq<std::any::TypeId> for clap_builder::util::AnyValueId

`v4.2.5`

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Fixes

Improve panic when a group requires a non-existent ID

`v4.2.4`

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Documentation

Corrected docs for Command::style

`v4.2.3`

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Features

Command::styles for theming help/errors (behind unstable-styles)

`v4.2.2`

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Internal

Update dependencies

`v4.2.1`

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Fixes

Don't highlight uninteresting parts of the error message

`v4.2.0`

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Compatibility

Removed the languishing unstable-replace feature (open to discussion at #2836)
Removed the stablized unstable-grouped feature

Features

Allow any StyledStr to accept text styled with ANSI escape codes
Respect CLICOLOR, CLICOLOR_FORCE

Fixes

Lighten the tone for "unexpected argument" errors (open to discussion at #4638)

`v4.1.14`

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Features

(derive) #[group] raw attribute support

Performance

(derive) clap_builder was pulled out of clap so it could build in parallel to clap_derive
os_str_bytes dependency was removed for faster builds and smaller binaries

`v4.1.13`

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Performance

Reduce repeated alloc calls when building a Command
Reduce duplicate dependencies for faster builds

`v4.1.12`

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Internal

(derive) Update to syn v2

Performance

(derive) Faster build times by dropping proc-macro-error dependency

`v4.1.11`

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Internal

Update bitflags

`v4.1.10`

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Fixes

(help) On Windows, avoid underlined text artifacts

`v4.1.9`

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Fixes

(assert) Improve the assert when using the wrong action with get_count / get_flag

`v4.1.8`

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Fixes

(derive) Don't deny lints on the users behalf

`v4.1.7`

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Fixes

(derive) Hide some nightly clippy warnings

`v4.1.6`

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Fixes

(help) Don't show long help for --help just because hidden possible values include a description

`v4.1.5`

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Fixes

(help) Don't show long help for --help just because a hidden arg has a possible value with a description

`v4.1.4`

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Fixes

(help) Respect disable_colored_help when using arg_required_else_help

Performance

Speed up compiling arg! macro

`v4.1.3`

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Fixes

(error) Improve suggested flag/value/subcommand when two share a long preifx
(error) When suggesting one of several subcommands, use the plural subcommands, rather than subcommand

`v4.1.2`

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Fixes

In documentation, refer to get_flag, rather than get_one::<bool>

`v4.1.1`

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Features

(derive) #[group] raw attribute support

Performance

(derive) clap_builder was pulled out of clap so it could build in parallel to clap_derive
os_str_bytes dependency was removed for faster builds and smaller binaries

`v4.1.0`

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Compatibility

MSRV changed to 1.64.0

For apps with custom --help and --version flags:

Descriptions for --help and --version changed

When apps have errors imitating clap's error style:

Error message style was changed, including
- Moving away from "did you mean" to tips
- Leading letter is lower case
- "For more" added some punctuation

Features

ArgMatches::get_occurrences support for argument values to be grouped by their occurrence

Fixes

(derive) Allow upgrade_from when arguments / subcommands are explicitly marked as required
(help) Try be more clearer and succinct with --help and --version (also helps with overflow)
(error) Try to be more clearer and succinct with error messages
(error) Officially adopt an error style guide

`v4.0.32`

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Fixes

(parser) When overriding required(true), consider args that conflict with its group

`v4.0.31`

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Performance

Speed up parsing when a lot of different flags are present (100 unique flags)

`v4.0.30`

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Fixes

(error) Improve error for args_conflicts_with_subcommand

`v4.0.29`

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`v4.0.28`

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Fixes

Fix wasm support which was broken in 4.0.27

`v4.0.27`

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Features

Have Arg::value_parser accept Vec<impl Into<PossibleValue>>
Implement Display and FromStr for ColorChoice

Fixes

Remove soundness issue by switching from atty to is-terminal

`v4.0.26`

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Fixes

(error) Fix typos in ContextKind::as_str

`v4.0.25`

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Features

(error) Report available subcommands when required subcommand is missing

`v4.0.24`

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Fixes

Avoid panic when printing an argument that isn't built

`v4.0.23`

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Fixes

Don't panic on reporting invalid-long errors when followed by invalid UTF8
(help) Clarified argument to help subcommand

`v4.0.22`

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Fixes

(help) Don't overflow into next-line-help early due to stale (pre-v4) padding calculations

`v4.0.21`

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Features

(derive) long_about and long_help attributes, without a value, force using doc comment (before it wouldn't be set if there wasn't anything different than the short help)

`v4.0.20`

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Fixes

(derive) Allow defaulted value parser for '()' fields

`v4.0.19`

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Features

ColorChoice now implements ValueEnum

`v4.0.18`

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Fixes

(derive) Allow #[command(skip)] to also work with enum variants with a value

`v4.0.17`

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Fixes

Allow using Arg::last(true) with Arg::value_hint(ValueHint::CommandWithArguments)

`v4.0.16`

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Fixes

Arg::exclusive(true) should not be exclusive with the argument's own ArgGroup

`v4.0.15`

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Fixes

(error) Don't suggest -- when it doesn't help
(error) Be more consistent in quoting, punctuation, and indentation in errors

`v4.0.14`

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Fixes

Only put ArgGroup in ArgMatches when explicitly specified, fixing derives handling of option-flattened fields (#4375)

`v4.0.13`

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Features

(derive) Allow () for fields to mean "don't read" (#4371)

`v4.0.12`

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Features

Added TypedValueParser::try_map for when adapting an existing TypedValueParser can fail
(error) Create errors like clap with Error::new, Error::with_cmd, and Error::insert

`v4.0.11`

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Fixes

(help) Fix wrapping calculations with ANSI escape codes

`v4.0.10`

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Features

(derive) Support #[arg(flatten)] on Option types (#4211, #4350)

`v4.0.9`

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Fixes

(derive) Process doc comments for #[command(subcommand)] like in clap v3

`v4.0.8`

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Fixes

(derive) Remove a low-value assert preventing defaulting Help and Version actions

`v4.0.7`

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Features

(derive) Populate implicit ArgGroup (#3165)

Fixes

(derive) Support #[group(skip)] on Parser derive
(derive) Tell users about implicit arg groups when running into group name conflicts
(error) Don't report unrelated groups in conflict or requires errors

`v4.0.6`

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Features

(derive) Support #[group(skip)] (#4279, #4301)

`v4.0.5`

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`v4.0.4`

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Fixes

(error) Specialize the self-conflict error to look like clap v3

`v4.0.3`

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Fixes

(parser) When overriding required(true), consider args that conflict with its group

`v4.0.2`

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`v4.0.1`

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Features

ColorChoice now implements ValueEnum

`v4.0.0`

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Highlights

Arg::num_args(range)

Clap has had several ways for controlling how many values will be captured without always being clear on how they interacted, including

Arg::multiple_values(true)
Arg::number_of_values(4)
Arg::min_values(2)
Arg::max_values(20)
Arg::takes_value(true)

These have now all been collapsed into Arg::num_args which accepts both
single values and ranges of values. num_args controls how many raw arguments
on the command line will be captured as values per occurrence and independent
of value delimiters.

See Issue 2688 for more background.

Polishing Help

Clap strives to give a polished CLI experience out of the box with little
ceremony. With some feedback that has accumulated over time, we took this
release as an opportunity to re-evaluate our --help output to make sure it is
meeting that goal.

In doing this evaluation, we wanted to keep in mind:

Whether other CLIs had ideas that make sense to apply
Providing an experience that fits within the rest of applications and works across all shells

Before:

git
A fictional versioning CLI

USAGE:
    git <SUBCOMMAND>

OPTIONS:
    -h, --help    Print help information

SUBCOMMANDS:
    add      adds things
    clone    Clones repos
    help     Print this message or the help of the given subcommand(s)
    push     pushes things
    stash

After:

A fictional versioning CLI

Usage: git <COMMAND>

Commands:
  clone  Clones repos
  push   pushes things
  add    adds things
  stash
  help   Print this message or the help of the given subcommand(s)

Options:
  -h, --help  Print help information

name/version header was removed because we couldn't justify the space it occupied when
- Usage already includes the name
- --version is available for showing the same thing (if the program has a version set)
Usage was dropped to one line to save space
Focus is put on the subcommands
Headings are now Title case
The more general term "command" is used rather than being explicit about being "subcommands"
The output is more dense with the expectation that it won't affect legibility but will allow more content
We've moved to a more neutral palette for highlighting elements (not highlighted above)

In talking to users, we found some that liked clap's man-like experience.
When deviating from this, we are making the assumption that those are more
power users and that the majority of users wouldn't look as favorably on being
consistent with man.

See Issue 4132 for more background.

More Dynamicism

Clap's API has focused on &str for performance but this can make
dealing with owned data difficult, like #[arg(default_value_t)] generating a
String from the default value.

Additionally, to avoid ArgMatches from borrowing (and for some features we
decided to forgo), clap took the &str argument IDs and hashed them. This
prevented us from providing a usable API for iterating over existing arguments.

Now clap has switched to a string newtype that gives us the flexibility to
decide whether to use &'static str, Cow<'static, str> for fast dynamic behavior, or
Box<str> for dynamic behavior with small binary size.

As an extension of that work, you can now call ArgMatches::ids to iterate
over the arguments and groups that were found when parsing. The newtype Id
was used to prevent some classes of bugs and to make it easier to understand
when opaque Ids are used vs user-visible strings.

Clearing Out Deprecations

Instead of doing all development on clap 4.0.0, we implemented a lot of new features during clap 3's development, deprecating the old API while introducing the new API, including:

Replacing the implicit behavior for args when parsing them with ArgAction
Replacing various one-off forms of value validation with the ValueParser API
- Allowing derives to automatically do the right thing for PathBuf (allowing invalid UTF-8)
Replacing AppSettings and ArgSettings enums with getters/setters
Clarifying terms and making them more consistent

Migrating

Steps:

Upgrade to v3 if you haven't already
Add CLI tests (including example below), -h and --help output at a minimum (recommendation: trycmd for snapshot testing)
If using Builder API: Explicitly set the arg.action(ArgAction::...) on each argument (StoreValue for options and IncOccurrences for flags)
Run cargo check --features clap/deprecated and resolve all deprecation warnings
Upgrade to v4
Update feature flags

If default-features = false, run cargo add clap -F help,usage,error-context
Run cargo add clap -F wrap_help unless you want to hard code line wraps

Resolve compiler errors
Resolve behavior changes (see "subtle changes" under BREAKING CHANGES)
At your leisure: resolve new deprecation notices

Example test (derive):

#[derive(clap::Parser)]
struct Cli {
    ...
}

#[test]
fn verify_cli() {
    use clap::CommandFactory;
    Cli::command().debug_assert()
}

Example test (builder):

fn cli() -> clap::Command {
    ...
}

#[test]
fn verify_cli() {
    cli().debug_assert();
}

Note: the idiomatic / recommended way of specifying different types of args in the Builder API has changed:

Before

.arg(Arg::new("flag").long("flag"))  # --flag
.arg(Arg::new("option").long("option").takes_value(true))  # --option <option>

After:

.arg(Arg::new("flag").long("flag").action(ArgAction::SetTrue))  # --flag
.arg(Arg::new("option").long("option"))  # --option <option>

In particular, num_args (the replacement for takes_value) will default appropriately
from the ArgAction and generally only needs to be set explicitly for the
other num_args use cases.

Breaking Changes

Subtle changes (i.e. compiler won't catch):

arg! now sets one of (#3795):
- ArgAction::SetTrue, requiring ArgMatches::get_flag instead of ArgMatches::is_present
- ArgAction::Count, requiring ArgMatches::get_count instead of ArgMatches::occurrences_of
- ArgAction::Set, requiring ArgMatches::get_one instead of ArgMatches::value_of
- ArgAction::Append, requiring ArgMatches::get_many instead of ArgMatches::values_of
ArgAction::Set, ArgAction::SetTrue, and Arg::Action::SetFalse now
conflict by default to be like ArgAction::StoreValue and
ArgAction::IncOccurrences, requiring cmd.args_override_self(true) to override instead (#4261)
By default, an Args default action is ArgAction::Set, rather than ArgAction::IncOccurrence to reduce confusing magic through consistency (#2687, #4032, see also #3977)
mut_arg can no longer be used to customize help and version arguments, instead disable them (Command::disable_help_flag, Command::disable_version_flag) and provide your own (#4056)
Removed lifetimes from Command, Arg, ArgGroup, and PossibleValue, assuming 'static. string feature flag will enable support for Strings (#1041, #2150, #4223)
arg!(--flag <value>) is now optional, instead of required. Add .required(true) at the end to restore the original behavior (#4206)
Added default feature flags, help, usage and error-context, requiring adding them back in if default-features = false (#4236)
(parser) Always fill in "" argument for external subcommands to make it easier to distinguish them from built-in commands (#3263)
(parser) Short flags now have higher precedence than hyphen values with Arg::allow_hyphen_values, to be consistent with Command::allow_hyphen_values (#4187)
(parser) Arg::value_terminator must be its own argument on the CLI rather than being in a delimited list (#4025)
(help) Line wrapping of help is now behind the existing wrap_help feature flag, either enable it or hard code your wraps (#4258)
(help) Make DeriveDisplayOrder the default and removed the setting. To sort help, set next_display_order(None) (#2808)
(help) Subcommand display order respects Command::next_display_order instead of DeriveDisplayOrder and using its own initial display order value (#2808)
(help) Subcommands are now listed before arguments. To get the old behavior, see Command::help_template (#4132)
(help) Help headings are now title cased, making any user-provided help headings inconsistent. To get the old behavior, see Command::help_template, Arg::help_heading, and Command::subcommand_help_heading (#4132)
(help) "Command" is used as the section heading for subcommands and COMMAND for the value name. To get the old behavior, see Command::subcommand_help_heading and Arg::subcommand_value_name (#4132, #4155)
(help) Whitespace in help output is now trimmed to ensure consistency regardless of how well a template matches the users needs. (#4132, #4156)
(help) name/version/author are removed by default from help output. To get the old behavior, see Command::help_template. (#4132, #4160)
(help) Indentation for second-line usage changed. (#4132, #4188)
(env) Parse --help and --version like any ArgAction::SetTrue flag (#3776)
(derive) Leave Arg::id as verbatim casing, requiring updating of string references to other args like in conflicts_with or requires (#3282)
(derive) Doc comments for ValueEnum variants will now show up in --help (#3312)
(derive) When deriving Args, and ArgGroup is created using the type's name, reserving it for future use (#2621, #4209)
(derive) next_help_heading can now leak out of a #[clap(flatten)], like all other command settings (#4222)

Easier to catch changes:

Looking up a group in ArgMatches now returns the arg Ids, rather than the values to reduce overhead and offer more flexibility. (#4072)
Changed Arg::number_of_values (average-across-occurrences) to Arg::num_args (per-occurrence) (raw CLI args, not parsed values) (#2688, #4023)
- num_args(0) no longer implies takes_value(true).multiple_values(true) (#4023)
- num_args(1) no longer implies multiple_values(true) (#4023)
- Does not check default or env values, only what the user explicitly passes in (#4025)
- No longer terminates on delimited values (#4025)
Replace Arg::min_values (across all occurrences) with Arg::num_args(N..) (per occurrence) to reduce confusion over different value count APIs (#4023)
Replace Arg::max_values (across all occurrences) with Arg::num_args(1..=M) (per occurrence) to reduce confusion over different value count APIs (#4023)
Replace Arg::multiple_values(true) with Arg::num_args(1..) and Arg::multiple_values(false) with Arg::num_args(0) to reduce confusion over different value count APIs (#4023)
Replace Arg::takes_value(true) with Arg::num_args(1) and Arg::takes_value(false) with Arg::num_args(0) to reduce confusion over different value count APIs
Remove Arg::require_value_delimiter, either users could use Arg::value_delimiter or implement a custom parser with TypedValueParser as it was mostly to make multiple_values(true) act like multiple_values(false) and isn't needed anymore (#4026)
Arg::new("help") and Arg::new("version") no longer implicitly disable the
built-in flags and be copied to all subcommands, instead disable
the built-in flags (Command::disable_help_flag,
Command::disable_version_flag) and mark the custom flags as global(true). (#4056)
Arg::short('h') no longer implicitly disables the short flag for help,
instead disable
the built-in flags (Command::disable_help_flag,
Command::disable_version_flag) provide your own Arg::new("help").long("help").action(ArgAction::Help).global(true). (#4056)
ArgAction::SetTrue and ArgAction::SetFalse now prioritize Arg::default_missing_value over their standard behavior (#4000)
Changed Arg::requires_ifs and Arg::default_value*_ifs* to taking an ArgPredicate, removing ambiguity with None when accepting owned and borrowed types (#4084)
Removed PartialEq and Eq from Command so we could change external subcommands to use a ValueParser (#3990)
Various Arg, Command, and ArgGroup calls were switched from accepting &[] to [] via IntoIterator to be more flexible (#4072)
Arg::short_aliases and other builder functions that took &[] need the & dropped (#4081)
ErrorKind and Result moved into the error module
ErrorKind::EmptyValue replaced with ErrorKind::InvalidValue to remove an unnecessary special case (#3676, #3968)
ErrorKind::UnrecognizedSubcommand replaced with ErrorKind::InvalidSubcommand to remove an unnecessary special case (#3676)
Changed the default type of allow_external_subcommands from String to OsString as that is less likely to cause bugs in user applications (#3990)
(help) Command::render_usage now returns a StyledStr (#4248)
(derive) Changed the default for arguments from parse to value_parser, removing parse support (#3827, #3981)
- #[clap(value_parser)] and #[clap(action)] are now redundant
(derive) subcommand_required(true).arg_required_else_help(true) is set instead of SubcommandRequiredElseHelp to give more meaningful errors when subcommands are missing and to reduce redundancy (#3280)
(derive) Remove arg_enum attribute in favor of value_enum to match the new name (we didn't have support in v3 to mark it deprecated) (#4127)
(parser) Assert when the CLI looksup an unknown args when external subcommand support is enabled to help catch bugs (#3703)
(assert) Sometimes Arg::default_missing_value didn't require num_args(0..=N), now it does (#4023)
(assert) Leading dashes in Arg::long are no longer allowed (#3691)
(assert) Disallow more value_names than num_args (#2695)
(assert) Always enforce that version is specified when the ArgAction::Version is used
(assert) Add missing #[track_caller]s to make it easier to debug asserts
(assert) Ensure overrides_with IDs are valid
(assert) Ensure no self-overrides_with now that Actions replace it
(assert) Ensure subcommand names are not duplicated
(assert) Assert on mut_arg receiving an invalid arg ID or mut_subcommand receiving an invalid command name

Compatibility

MSRV is now 1.60.0

Deprecated

Arg::use_value_delimiter in favor of Arg::value_delimiter to avoid having multiple ways of doing the same thing
Arg::requires_all in favor of Arg::requires_ifs now that it takes an ArgPredicate to avoid having multiple ways of doing the same thing
Arg::number_of_values in favor of Arg::num_args to clarify semantic differences
default_value_os, default_values_os, default_value_if_os, and default_value_ifs_os as the non _os variants now accept either a str or an OsStr (#4141)
Arg::env_os in favor of Arg::env
Command::dont_collapse_args_in_usage is now the default (#4151)
Command::trailing_var_arg in favor of Arg::trailing_var_arg to make it clearer which arg it is meant to apply to (#4187)
Command::allow_hyphen_values in favor of Arg::allow_hyphen_values to make it clearer which arg it is meant to apply to (#4187)
Command::allow_negative_numbers in favor of Arg::allow_negative_numbers to make it clearer which arg it is meant to apply to (#4187)
(help) Deprecated Command::write_help and Command::write_long_help in favor of Command::render_help and Command::render_long_help (#4248)
(derive) structopt and clap attributes in favor of the more specific command, arg, and value to open the door for more features and clarify relationship to the builder (#1807, #4180)
(derive) #[clap(value_parser)] and #[clap(action)] defaulted attributes (its the default) (#3976)

Behavior Changes

(help) With wrap_help feature, if the terminal size cannot be determined, LINES and COLUMNS variables are used (#4186)

Features

Arg::num_args now accepts ranges, allowing setting both the minimum and maximum number of values per occurrence (#2688, #4023)
Allow non-bool value_parsers for ArgAction::SetTrue / ArgAction::SetFalse (#4092)
Add From<&OsStr>, From<OsString>, From<&str>, and From<String> to value_parser! ([#4257](https://redirect.github.

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renovate · 2023-12-27T18:39:57Z

⚠ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

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the branch becomes conflicted, or
you click the rebase/retry checkbox if found above, or
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The artifact failure details are included below:

File name: Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path Cargo.toml --package [email protected] --precise 4.5.4
    Updating crates.io index
error: failed to select a version for the requirement `clap = "^3.2.22"`
candidate versions found which didn't match: 4.5.4
location searched: crates.io index
required by package `skim v0.10.2`
    ... which satisfies dependency `skim = "^0.10.2"` (locked to 0.10.2) of package `awsctx v0.5.0 (/tmp/renovate/repos/github/hiro-o918/awsctx)`
perhaps a crate was updated and forgotten to be re-vendored?

renovate · 2024-07-20T07:18:59Z

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

any of the package files in this branch needs updating, or
the branch becomes conflicted, or
you click the rebase/retry checkbox if found above, or
you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path Cargo.toml --package [email protected] --precise 4.5.20
    Updating crates.io index
error: failed to select a version for the requirement `clap = "^3.2.22"`
candidate versions found which didn't match: 4.5.20
location searched: crates.io index
required by package `skim v0.10.2`
    ... which satisfies dependency `skim = "^0.10.2"` (locked to 0.10.2) of package `awsctx v0.5.0 (/tmp/renovate/repos/github/hiro-o918/awsctx)`

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Update Cargo Dependencies (major) #60

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