forked from extern/nushell
58 lines
1.3 KiB
Rust
58 lines
1.3 KiB
Rust
use url::Url;
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use super::operate;
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use crate::prelude::*;
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use nu_engine::WholeStreamCommand;
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use nu_errors::ShellError;
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use nu_protocol::{ColumnPath, Signature, SyntaxShape, Value};
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pub struct UrlHost;
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impl WholeStreamCommand for UrlHost {
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fn name(&self) -> &str {
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"url host"
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}
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fn signature(&self) -> Signature {
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Signature::build("url host")
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.rest(SyntaxShape::ColumnPath, "optionally operate by column path")
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}
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fn usage(&self) -> &str {
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"gets the host of a url"
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}
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fn run_with_actions(&self, args: CommandArgs) -> Result<ActionStream, ShellError> {
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let args = args.evaluate_once()?;
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let rest: Vec<ColumnPath> = args.rest(0)?;
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let input = args.input;
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Ok(operate(input, rest, &host))
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}
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fn examples(&self) -> Vec<Example> {
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vec![Example {
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description: "Get host of a url",
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example: "echo 'http://www.example.com/foo/bar' | url host",
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result: Some(vec![Value::from("www.example.com")]),
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}]
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}
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}
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fn host(url: &Url) -> &str {
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url.host_str().unwrap_or("")
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}
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#[cfg(test)]
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mod tests {
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use super::ShellError;
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use super::UrlHost;
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#[test]
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fn examples_work_as_expected() -> Result<(), ShellError> {
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use crate::examples::test as test_examples;
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test_examples(UrlHost {})
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}
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}
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