mirror of
https://github.com/clap-rs/clap
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b7793a2f4d
* feat: adds App::with_defaults to automatically use crate_authors! and crate_version! macros
One can now use
```rust
let a = App::with_defaults("My Program");
// same as
let a2 = App::new("My Program")
.version(crate_version!())
.author(crate_authors!());
```
Closes #600
* imp(YAML Errors): vastly improves error messages when using YAML
When errors are made while developing, the panic error messages have
been improved instead of relying on the default panic message which is
extremely unhelpful.
Closes #574
* imp(Completions): uses standard conventions for bash completion files, namely '{bin}.bash-completion'
Closes #567
* imp(Help): automatically moves help text to the next line and wraps when term width is determined to be too small, or help text is too long
Now `clap` will check if it should automatically place long help
messages on the next line after the flag/option. This is determined by
checking to see if the space taken by flag/option plus spaces and values
doesn't leave enough room for the entirety of the help message, with the
single exception of of if the flag/option/spaces/values is less than 25%
of the width.
Closes #597
* tests: updates help tests to new forced new line rules
* fix(Groups): fixes some usage strings that contain both args in groups and ones that conflict with each other
Args that conflict *and* are in a group will now only display in the
group and not in the usage string itself.
Closes #616
* chore: updates dep graph
Closes #633
* chore: clippy run
* style: changes debug header to match other Rust projects
* chore: increase version
97 lines
3.1 KiB
YAML
97 lines
3.1 KiB
YAML
name: yml_app
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version: "1.0"
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about: an example using a .yml file to build a CLI
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author: Kevin K. <kbknapp@gmail.com>
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# AppSettings can be defined as a list and are **not** ascii case sensitive
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settings:
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- ArgRequiredElseHelp
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# All Args must be defined in the 'args:' list where the name of the arg, is the
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# key to a Hash object
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args:
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# The name of this argument, is 'opt' which will be used to access the value
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# later in your Rust code
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- opt:
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help: example option argument from yaml
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short: o
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long: option
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multiple: true
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takes_value: true
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- pos:
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help: example positional argument from yaml
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index: 1
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# A list of possible values can be defined as a list
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possible_values:
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- fast
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- slow
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- flag:
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help: demo flag argument
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short: F
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multiple: true
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global: true
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# Conflicts, mutual overrides, and requirements can all be defined as a
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# list, where the key is the name of the other argument
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conflicts_with:
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- opt
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requires:
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- pos
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- mode:
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long: mode
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help: shows an option with specific values
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# possible_values can also be defined in this list format
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possible_values: [ vi, emacs ]
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takes_value: true
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- mvals:
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long: mult-vals
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help: demos an option which has two named values
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# value names can be described in a list, where the help will be shown
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# --mult-vals <one> <two>
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value_names:
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- one
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- two
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- minvals:
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long: min-vals
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multiple: true
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help: you must supply at least two values to satisfy me
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min_values: 2
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- maxvals:
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long: max-vals
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multiple: true
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help: you can only supply a max of 3 values for me!
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max_values: 3
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# All subcommands must be listed in the 'subcommand:' object, where the key to
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# the list is the name of the subcommand, and all settings for that command are
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# are part of a Hash object
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subcommands:
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# The nae of this subcommand will be 'subcmd' which can be accessed in your
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# Rust code later
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- subcmd:
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about: demos subcommands from yaml
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version: "0.1"
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author: Kevin K. <kbknapp@gmail.com>
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# Subcommand args are exactly like App args
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args:
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- scopt:
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short: B
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multiple: true
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help: example subcommand option
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takes_value: true
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- scpos1:
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help: example subcommand positional
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index: 1
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# ArgGroups are supported as well, and must be sepcified in the 'groups:'
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# object of this file
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groups:
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# the name of the ArgGoup is specified here
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- min-max-vals:
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# All args and groups that are a part of this group are set here
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args:
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- minvals
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- maxvals
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# setting conflicts is done the same manner as setting 'args:'
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#
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# to make this group required, you could set 'required: true' but for
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# this example we won't do that.
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