forked from extern/nushell
75 lines
1.9 KiB
Rust
75 lines
1.9 KiB
Rust
use super::{operate, PathSubcommandArguments};
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use crate::prelude::*;
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use nu_engine::filesystem::filesystem_shell::get_file_type;
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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, Value};
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use std::path::Path;
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pub struct PathType;
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struct PathTypeArguments {
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rest: Vec<ColumnPath>,
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}
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impl PathSubcommandArguments for PathTypeArguments {
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fn get_column_paths(&self) -> &Vec<ColumnPath> {
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&self.rest
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}
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}
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impl WholeStreamCommand for PathType {
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fn name(&self) -> &str {
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"path type"
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}
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fn signature(&self) -> Signature {
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Signature::build("path type")
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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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"Get the type of the object a path refers to (e.g., file, dir, symlink)"
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}
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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 cmd_args = Arc::new(PathTypeArguments {
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rest: args.rest(0)?,
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});
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Ok(operate(args.input, &action, tag.span, cmd_args))
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}
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fn examples(&self) -> Vec<Example> {
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vec![Example {
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description: "Show type of a filepath",
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example: "echo '.' | path type",
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result: Some(vec![Value::from("Dir")]),
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}]
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}
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}
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fn action(path: &Path, tag: Tag, _args: &PathTypeArguments) -> Value {
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let meta = std::fs::symlink_metadata(path);
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let untagged = UntaggedValue::string(match &meta {
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Ok(md) => get_file_type(md),
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Err(_) => "",
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});
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untagged.into_value(tag)
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}
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#[cfg(test)]
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mod tests {
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use super::PathType;
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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(PathType {})
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}
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}
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