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dfr
command (nushell#10683)
# Description This will only display the list of subcommands. Prompted by a question on Discord why completions may be missing. With standard completion settings getting the subcommands doesn't seem to be a problem but we could add this command for good measure. # User-Facing Changes New command `dfr` that does nothing apart from displaying the subcommands and hogging a space in the completions # Tests + Formatting (-)
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use nu_engine::get_full_help; | ||
use nu_protocol::ast::Call; | ||
use nu_protocol::engine::{Command, EngineState, Stack}; | ||
use nu_protocol::{Category, IntoPipelineData, PipelineData, ShellError, Signature, Type, Value}; | ||
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#[derive(Clone)] | ||
pub struct Dfr; | ||
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impl Command for Dfr { | ||
fn name(&self) -> &str { | ||
"dfr" | ||
} | ||
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fn usage(&self) -> &str { | ||
"Operate with data in a dataframe format." | ||
} | ||
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fn signature(&self) -> nu_protocol::Signature { | ||
Signature::build("dfr") | ||
.category(Category::Custom("dataframe".into())) | ||
.input_output_types(vec![(Type::Nothing, Type::String)]) | ||
} | ||
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fn extra_usage(&self) -> &str { | ||
"You must use one of the following subcommands. Using this command as-is will only produce this help message." | ||
} | ||
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fn run( | ||
&self, | ||
engine_state: &EngineState, | ||
stack: &mut Stack, | ||
call: &Call, | ||
_input: PipelineData, | ||
) -> Result<PipelineData, ShellError> { | ||
Ok(Value::string( | ||
get_full_help( | ||
&Dfr.signature(), | ||
&Dfr.examples(), | ||
engine_state, | ||
stack, | ||
self.is_parser_keyword(), | ||
), | ||
call.head, | ||
) | ||
.into_pipeline_data()) | ||
} | ||
} |