81ece18d5e
# 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 (-)
48 lines
1.2 KiB
Rust
48 lines
1.2 KiB
Rust
use nu_engine::get_full_help;
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use nu_protocol::ast::Call;
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use nu_protocol::engine::{Command, EngineState, Stack};
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use nu_protocol::{Category, IntoPipelineData, PipelineData, ShellError, Signature, Type, Value};
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#[derive(Clone)]
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pub struct Dfr;
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impl Command for Dfr {
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fn name(&self) -> &str {
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"dfr"
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}
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fn usage(&self) -> &str {
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"Operate with data in a dataframe format."
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}
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fn signature(&self) -> nu_protocol::Signature {
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Signature::build("dfr")
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.category(Category::Custom("dataframe".into()))
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.input_output_types(vec![(Type::Nothing, Type::String)])
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}
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fn extra_usage(&self) -> &str {
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"You must use one of the following subcommands. Using this command as-is will only produce this help message."
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}
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fn run(
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&self,
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engine_state: &EngineState,
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stack: &mut Stack,
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call: &Call,
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_input: PipelineData,
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) -> Result<PipelineData, ShellError> {
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Ok(Value::string(
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get_full_help(
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&Dfr.signature(),
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&Dfr.examples(),
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engine_state,
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stack,
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self.is_parser_keyword(),
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),
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call.head,
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)
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.into_pipeline_data())
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}
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}
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