forked from extern/nushell
55 lines
1.5 KiB
Rust
55 lines
1.5 KiB
Rust
use std::fs::OpenOptions;
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use nu_engine::CallExt;
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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::{PipelineData, ShellError, Signature, SyntaxShape};
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#[derive(Clone)]
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pub struct Touch;
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impl Command for Touch {
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fn name(&self) -> &str {
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"touch"
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}
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fn signature(&self) -> Signature {
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Signature::build("touch")
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.required(
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"filename",
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SyntaxShape::Filepath,
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"the path of the file you want to create",
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)
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.rest("rest", SyntaxShape::Filepath, "additional files to create")
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}
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fn usage(&self) -> &str {
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"Creates one or more files."
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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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let target: String = call.req(engine_state, stack, 0)?;
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let rest: Vec<String> = call.rest(engine_state, stack, 1)?;
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for (index, item) in vec![target].into_iter().chain(rest).enumerate() {
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match OpenOptions::new().write(true).create(true).open(&item) {
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Ok(_) => continue,
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Err(err) => {
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return Err(ShellError::CreateNotPossible(
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format!("Failed to create file: {}", err),
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call.positional[index].span,
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));
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}
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}
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}
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Ok(PipelineData::new(call.head))
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}
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}
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