83 lines
2.4 KiB
Rust
83 lines
2.4 KiB
Rust
use super::{operate, DefaultArguments};
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use crate::prelude::*;
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use nu_engine::WholeStreamCommand;
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use nu_errors::ShellError;
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use nu_protocol::{ColumnPath, Signature, SyntaxShape, UntaggedValue};
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use std::path::{Path, PathBuf};
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pub struct PathExpand;
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#[derive(Deserialize)]
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struct PathExpandArguments {
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rest: Vec<ColumnPath>,
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}
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#[async_trait]
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impl WholeStreamCommand for PathExpand {
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fn name(&self) -> &str {
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"path expand"
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}
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fn signature(&self) -> Signature {
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Signature::build("path expand")
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.rest(SyntaxShape::ColumnPath, "Optionally operate by column path")
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}
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fn usage(&self) -> &str {
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"Expands a path to its absolute form"
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}
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async fn run(&self, args: CommandArgs) -> Result<OutputStream, ShellError> {
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let tag = args.call_info.name_tag.clone();
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let (PathExpandArguments { rest }, input) = args.process().await?;
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let args = Arc::new(DefaultArguments {
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replace: None,
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prefix: None,
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suffix: None,
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num_levels: None,
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paths: rest,
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});
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operate(input, &action, tag.span, args).await
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}
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#[cfg(windows)]
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fn examples(&self) -> Vec<Example> {
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vec![Example {
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description: "Expand relative directories",
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example: "echo 'C:\\Users\\joe\\foo\\..\\bar' | path expand",
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result: None,
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// fails to canonicalize into Some(vec![Value::from("C:\\Users\\joe\\bar")]) due to non-existing path
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}]
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}
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#[cfg(not(windows))]
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fn examples(&self) -> Vec<Example> {
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vec![Example {
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description: "Expand relative directories",
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example: "echo '/home/joe/foo/../bar' | path expand",
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result: None,
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// fails to canonicalize into Some(vec![Value::from("/home/joe/bar")]) due to non-existing path
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}]
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}
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}
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fn action(path: &Path, _args: Arc<DefaultArguments>) -> UntaggedValue {
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let ps = path.to_string_lossy();
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let expanded = shellexpand::tilde(&ps);
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let path: &Path = expanded.as_ref().as_ref();
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UntaggedValue::filepath(dunce::canonicalize(path).unwrap_or_else(|_| PathBuf::from(path)))
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}
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#[cfg(test)]
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mod tests {
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use super::PathExpand;
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use super::ShellError;
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#[test]
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fn examples_work_as_expected() -> Result<(), ShellError> {
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use crate::examples::test as test_examples;
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test_examples(PathExpand {})
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}
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}
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