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# Description _(Thank you for improving Nushell. Please, check our [contributing guide](../CONTRIBUTING.md) and talk to the core team before making major changes.)_ I opened this PR to unify the run command method. It's mainly to improve consistency across the tree. # User-Facing Changes None. # Tests + Formatting Don't forget to add tests that cover your changes. Make sure you've run and fixed any issues with these commands: - `cargo fmt --all -- --check` to check standard code formatting (`cargo fmt --all` applies these changes) - `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A clippy::needless_collect` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass # After Submitting If your PR had any user-facing changes, update [the documentation](https://github.com/nushell/nushell.github.io) after the PR is merged, if necessary. This will help us keep the docs up to date.
48 lines
1.3 KiB
Rust
48 lines
1.3 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 From;
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impl Command for From {
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fn name(&self) -> &str {
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"from"
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}
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fn usage(&self) -> &str {
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"Parse a string or binary data into structured data"
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}
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fn signature(&self) -> nu_protocol::Signature {
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Signature::build("from")
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.category(Category::Formats)
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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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val: get_full_help(
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&From.signature(),
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&From.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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span: 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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