nushell/crates/nu-command/src/commands/path/join.rs
Jonathan Turner 073e5727c6
Switch to "engine-p" (#3270)
* WIP

* WIP

* first builds

* Tests pass
2021-04-06 11:19:43 -05:00

84 lines
2.3 KiB
Rust

use super::{operate, PathSubcommandArguments};
use crate::prelude::*;
use nu_engine::WholeStreamCommand;
use nu_errors::ShellError;
use nu_protocol::{ColumnPath, Signature, SyntaxShape, UntaggedValue, Value};
use nu_source::Tagged;
use std::path::Path;
pub struct PathJoin;
#[derive(Deserialize)]
struct PathJoinArguments {
path: Tagged<String>,
rest: Vec<ColumnPath>,
}
impl PathSubcommandArguments for PathJoinArguments {
fn get_column_paths(&self) -> &Vec<ColumnPath> {
&self.rest
}
}
impl WholeStreamCommand for PathJoin {
fn name(&self) -> &str {
"path join"
}
fn signature(&self) -> Signature {
Signature::build("path join")
.required("path", SyntaxShape::String, "Path to join the input path")
.rest(SyntaxShape::ColumnPath, "Optionally operate by column path")
}
fn usage(&self) -> &str {
"Joins an input path with another path"
}
fn run(&self, args: CommandArgs) -> Result<OutputStream, ShellError> {
let tag = args.call_info.name_tag.clone();
let (PathJoinArguments { path, rest }, input) = args.process()?;
let args = Arc::new(PathJoinArguments { path, rest });
Ok(operate(input, &action, tag.span, args))
}
#[cfg(windows)]
fn examples(&self) -> Vec<Example> {
vec![Example {
description: "Append a filename to a path",
example: "echo 'C:\\Users\\viking' | path join spam.txt",
result: Some(vec![Value::from(UntaggedValue::filepath(
"C:\\Users\\viking\\spam.txt",
))]),
}]
}
#[cfg(not(windows))]
fn examples(&self) -> Vec<Example> {
vec![Example {
description: "Append a filename to a path",
example: "echo '/home/viking' | path join spam.txt",
result: Some(vec![Value::from(UntaggedValue::filepath(
"/home/viking/spam.txt",
))]),
}]
}
}
fn action(path: &Path, args: &PathJoinArguments) -> UntaggedValue {
UntaggedValue::filepath(path.join(&args.path.item))
}
#[cfg(test)]
mod tests {
use super::PathJoin;
use super::ShellError;
#[test]
fn examples_work_as_expected() -> Result<(), ShellError> {
use crate::examples::test as test_examples;
test_examples(PathJoin {})
}
}