nushell/crates/nu-cli/src/commands/cp.rs

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use crate::commands::WholeStreamCommand;
use crate::context::CommandRegistry;
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use crate::prelude::*;
use nu_errors::ShellError;
use nu_protocol::{Signature, SyntaxShape};
use nu_source::Tagged;
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use std::path::PathBuf;
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pub struct Cpy;
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#[derive(Deserialize)]
pub struct CopyArgs {
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pub src: Tagged<PathBuf>,
pub dst: Tagged<PathBuf>,
pub recursive: Tagged<bool>,
}
impl WholeStreamCommand for Cpy {
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fn name(&self) -> &str {
"cp"
}
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fn signature(&self) -> Signature {
Signature::build("cp")
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.required("src", SyntaxShape::Pattern, "the place to copy from")
.required("dst", SyntaxShape::Path, "the place to copy to")
.switch(
"recursive",
"copy recursively through subdirectories",
Some('r'),
)
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}
fn usage(&self) -> &str {
"Copy files."
}
fn run(
&self,
args: CommandArgs,
registry: &CommandRegistry,
) -> Result<OutputStream, ShellError> {
cp(args, registry)
}
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fn examples(&self) -> &[Example] {
&[
Example {
description: "Copy myfile to dir_b",
example: "cp myfile dir_b",
},
Example {
description: "Recursively copy dir_a to dir_b",
example: "cp -r dir_a dir_b",
},
]
}
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}
pub fn cp(args: CommandArgs, registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
let registry = registry.clone();
let stream = async_stream! {
let shell_manager = args.shell_manager.clone();
let name = args.call_info.name_tag.clone();
let (args, _) = args.process(&registry).await?;
let mut result = shell_manager.cp(args, name)?;
while let Some(item) = result.next().await {
yield item;
}
};
Ok(stream.to_output_stream())
}