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The help commands don't actually need to have the arguments passed by
value, so passing them by reference is fine.
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Also the dreaded `ctx <<= "something"` which is actually a mistake.
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* Implement command groups
* change to ref mut
* Implement framework API.
* Remove commands field
* Make it all work
* Make example use command groups
* Requested changes
* Implement adding buckets
* Add ratelimit check function
* Finish everything
* Fix voice example
* Actually fix it
* Fix doc tests
* Switch to result
* Savage examples
* Fix docs
* Fixes
* Accidental push
* 👀
* Fix an example
* fix some example
* Small cleanup
* Abstract ratelimit bucket logic
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Adds multiple configurations to the command builder, and adds methods
to various structs.
Context::get_current_user is a shortcut to retrieve the current user
from the cache.
Message::get_member retrieves the member object of the message, if sent
in a guild. Message::is_private checks if the message was sent in a
Group or PrivateChannel.
User::member retrieves the user's member object in a guild by Id;
Adds 6 configurations to the command builder:
- dm_only: whether the command can only be used in direct messages;
- guild_only: whether the command can only be used in guilds;
- help_available: whether the command should be displayed in the help
list;
- max_args: specify the maximum number of arguments a command must be
given;
- min_args: specify the minimum number of arguments a command must be
given;
- required_permissions: the permissions a member must have to be able
to use the command;
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Add a command builder, which can take arguments such as multiple checks,
quoted arguments, and multiple prefix support, as well as dynamic
prefixes per context.
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These hooks will each be run prior to or after the command, and will
finish execution before executing the command.
These can be configured in a Framework via:
```rs
client.with_framework(|f| f
.before(|_context, message, _command_name| {
println!("Got command '{}'", command_name);
})
.after(|_context, _message, command_name| {
println!("Finished command '{}'", command_name);
}));
```
This does introduce a backwards compatibility break, by requiring
commands' Context/Message to be borrowed
Upgrade path:
If not using the `command!` macro, modify command signatures from:
```rs
fn some_command(context: Context, message: Message, args: Vec<String>)
```
to
```rs
fn some_command(context: &Context, message: &Message, args: Vec<String>)
```
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The command system assumed that prefixes were only one character long,
so count the total length of the prefix. In addition, the
`allow_whitespace` configuration added some difficulty in deciding where
to count as the initial position to start splitting for arguments.
Instead of fixing that, rewrite the framework to make these types of
changes easier in the future.
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