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22 lines
635 B
Rust
22 lines
635 B
Rust
use crate::errors::ShellError;
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use crate::object::base::select_fields;
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use crate::object::Value;
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use crate::prelude::*;
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pub fn select(args: CommandArgs) -> Result<OutputStream, ShellError> {
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if args.args.is_empty() {
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return Err(ShellError::string("select requires a field"));
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}
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let fields: Result<Vec<String>, _> = args.args.iter().map(|a| a.as_string()).collect();
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let fields = fields?;
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let objects = args
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.input
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.map(move |item| Value::Object(select_fields(&item, &fields)))
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.map(|item| ReturnValue::Value(item));
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let stream = Pin::new(Box::new(objects));
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Ok(stream)
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}
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