diff --git a/crates/nu-command/src/ls.rs b/crates/nu-command/src/ls.rs new file mode 100644 index 0000000000..c8b00a8fb5 --- /dev/null +++ b/crates/nu-command/src/ls.rs @@ -0,0 +1,93 @@ +use nu_engine::eval_expression; +use nu_protocol::ast::Call; +use nu_protocol::engine::{Command, EvaluationContext}; +use nu_protocol::{IntoValueStream, Signature, SyntaxShape, Value}; + +pub struct Ls; + +//NOTE: this is not a real implementation :D. It's just a simple one to test with until we port the real one. +impl Command for Ls { + fn name(&self) -> &str { + "ls" + } + + fn usage(&self) -> &str { + "List the files in a directory." + } + + fn signature(&self) -> nu_protocol::Signature { + Signature::build("ls").optional( + "pattern", + SyntaxShape::GlobPattern, + "the glob pattern to use", + ) + } + + fn run( + &self, + context: &EvaluationContext, + call: &Call, + _input: Value, + ) -> Result { + let pattern = if let Some(expr) = call.positional.get(0) { + let result = eval_expression(context, expr)?; + result.as_string()? + } else { + "*".into() + }; + + let call_span = call.head; + let glob = glob::glob(&pattern).unwrap(); + + Ok(Value::Stream { + stream: glob + .into_iter() + .map(move |x| match x { + Ok(path) => match std::fs::symlink_metadata(&path) { + Ok(metadata) => { + let is_file = metadata.is_file(); + let is_dir = metadata.is_dir(); + let filesize = metadata.len(); + + Value::Record { + cols: vec!["name".into(), "type".into(), "size".into()], + vals: vec![ + Value::String { + val: path.to_string_lossy().to_string(), + span: call_span, + }, + if is_file { + Value::string("file", call_span) + } else if is_dir { + Value::string("dir", call_span) + } else { + Value::Nothing { span: call_span } + }, + Value::Int { + val: filesize as i64, + span: call_span, + }, + ], + span: call_span, + } + } + Err(_) => Value::Record { + cols: vec!["name".into(), "type".into(), "size".into()], + vals: vec![ + Value::String { + val: path.to_string_lossy().to_string(), + span: call_span, + }, + Value::Nothing { span: call_span }, + Value::Nothing { span: call_span }, + ], + span: call_span, + }, + }, + _ => Value::Nothing { span: call_span }, + }) + .into_value_stream(), + span: call_span, + }) + } +}