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Allow ls works inside dir with [] brackets (#12625)
# Description Fixes: #12429 To fix the issue, we need to pass the `input pattern` itself to `glob_from` function, but currently on latest main, nushell pass `expanded path of input pattern` to `glob_from` function. It causes globbing failed if expanded path includes `[]` brackets. It's a pity that I have to duplicate `nu_engine::glob_from` function into `ls`, because `ls` might convert from `NuGlob::NotExpand` to `NuGlob::Expand`, in that case, `nu_engine::glob_from` won't work if user want to ls for a directory which includes tilde: ``` mkdir "~abc" ls "~abc" ``` So I need to duplicate `glob_from` function and pass original `expand_tilde` information. # User-Facing Changes Nan # Tests + Formatting Done # After Submitting Nan
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@ -1,9 +1,10 @@
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use super::util::get_rest_for_glob_pattern;
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use crate::{DirBuilder, DirInfo};
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use chrono::{DateTime, Local, LocalResult, TimeZone, Utc};
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use nu_engine::glob_from;
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#[allow(deprecated)]
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use nu_engine::{command_prelude::*, env::current_dir};
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use nu_glob::{MatchOptions, Pattern};
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use nu_glob::MatchOptions;
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use nu_path::expand_to_real_path;
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use nu_protocol::{DataSource, NuGlob, PipelineMetadata};
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use pathdiff::diff_paths;
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@ -31,6 +32,8 @@ struct Args {
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call_span: Span,
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}
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const GLOB_CHARS: &[char] = &['*', '?', '['];
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impl Command for Ls {
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fn name(&self) -> &str {
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"ls"
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@ -235,24 +238,20 @@ fn ls_for_one_pattern(
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}
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};
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// it indicates we need to append an extra '*' after pattern for listing given directory
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// Example: 'ls directory' -> 'ls directory/*'
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let mut extra_star_under_given_directory = false;
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let (path, p_tag, absolute_path, quoted) = match pattern_arg {
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let mut just_read_dir = false;
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let p_tag: Span = pattern_arg.as_ref().map(|p| p.span).unwrap_or(call_span);
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let (pattern_arg, absolute_path) = match pattern_arg {
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Some(pat) => {
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let p_tag = pat.span;
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let expanded = nu_path::expand_path_with(
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pat.item.as_ref(),
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&cwd,
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matches!(pat.item, NuGlob::Expand(..)),
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);
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// expand with cwd here is only used for checking
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let tmp_expanded =
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nu_path::expand_path_with(pat.item.as_ref(), &cwd, pat.item.is_expand());
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// Avoid checking and pushing "*" to the path when directory (do not show contents) flag is true
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if !directory && expanded.is_dir() {
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if permission_denied(&expanded) {
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if !directory && tmp_expanded.is_dir() {
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if permission_denied(&tmp_expanded) {
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#[cfg(unix)]
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let error_msg = format!(
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"The permissions of {:o} do not allow access for this user",
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expanded
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tmp_expanded
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.metadata()
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.expect("this shouldn't be called since we already know there is a dir")
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.permissions()
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@ -269,10 +268,10 @@ fn ls_for_one_pattern(
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inner: vec![],
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});
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}
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if is_empty_dir(&expanded) {
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if is_empty_dir(&tmp_expanded) {
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return Ok(Box::new(vec![].into_iter()));
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}
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extra_star_under_given_directory = true;
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just_read_dir = !(pat.item.is_expand() && pat.item.as_ref().contains(GLOB_CHARS));
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}
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// it's absolute path if:
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@ -282,52 +281,28 @@ fn ls_for_one_pattern(
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// path.
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let absolute_path = Path::new(pat.item.as_ref()).is_absolute()
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|| (pat.item.is_expand() && expand_to_real_path(pat.item.as_ref()).is_absolute());
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(
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expanded,
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p_tag,
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absolute_path,
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matches!(pat.item, NuGlob::DoNotExpand(_)),
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)
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(pat.item, absolute_path)
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}
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None => {
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// Avoid pushing "*" to the default path when directory (do not show contents) flag is true
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if directory {
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(PathBuf::from("."), call_span, false, false)
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(NuGlob::Expand(".".to_string()), false)
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} else if is_empty_dir(&cwd) {
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return Ok(Box::new(vec![].into_iter()));
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} else {
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(PathBuf::from("*"), call_span, false, false)
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(NuGlob::Expand("*".to_string()), false)
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}
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}
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};
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let hidden_dir_specified = is_hidden_dir(&path);
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// when it's quoted, we need to escape our glob pattern(but without the last extra
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// start which may be added under given directory)
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// so we can do ls for a file or directory like `a[123]b`
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let path = if quoted {
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let p = path.display().to_string();
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let mut glob_escaped = Pattern::escape(&p);
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if extra_star_under_given_directory {
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glob_escaped.push(std::path::MAIN_SEPARATOR);
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glob_escaped.push('*');
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}
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glob_escaped
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let hidden_dir_specified = is_hidden_dir(pattern_arg.as_ref());
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let path = pattern_arg.into_spanned(p_tag);
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let (prefix, paths) = if just_read_dir {
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let expanded = nu_path::expand_path_with(path.item.as_ref(), &cwd, path.item.is_expand());
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let paths = read_dir(&expanded)?;
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// just need to read the directory, so prefix is path itself.
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(Some(expanded), paths)
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} else {
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let mut p = path.display().to_string();
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if extra_star_under_given_directory {
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p.push(std::path::MAIN_SEPARATOR);
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p.push('*');
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}
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p
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};
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let glob_path = Spanned {
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// use NeedExpand, the relative escaping logic is handled previously
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item: NuGlob::Expand(path.clone()),
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span: p_tag,
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};
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let glob_options = if all {
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None
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} else {
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@ -337,12 +312,13 @@ fn ls_for_one_pattern(
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};
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Some(glob_options)
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};
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let (prefix, paths) = nu_engine::glob_from(&glob_path, &cwd, call_span, glob_options)?;
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glob_from(&path, &cwd, call_span, glob_options)?
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};
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let mut paths_peek = paths.peekable();
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if paths_peek.peek().is_none() {
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return Err(ShellError::GenericError {
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error: format!("No matches found for {}", &path),
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error: format!("No matches found for {:?}", path.item),
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msg: "Pattern, file or folder not found".into(),
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span: Some(p_tag),
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help: Some("no matches found".into()),
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@ -904,3 +880,14 @@ mod windows_helper {
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false
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}
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}
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#[allow(clippy::type_complexity)]
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fn read_dir(
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f: &Path,
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) -> Result<Box<dyn Iterator<Item = Result<PathBuf, ShellError>> + Send>, ShellError> {
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let iter = f.read_dir()?.map(|d| {
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d.map(|r| r.path())
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.map_err(|e| ShellError::IOError { msg: e.to_string() })
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});
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Ok(Box::new(iter))
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}
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@ -85,13 +85,13 @@ fn lists_regular_files_in_special_folder() {
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assert_eq!(actual.out, "2");
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let actual = nu!(
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cwd: dirs.test().join("abcd/*"), format!(r#"ls ../* | length"#));
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assert_eq!(actual.out, "3");
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assert_eq!(actual.out, "2");
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let actual = nu!(
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cwd: dirs.test().join("abcd/?"), format!(r#"ls -D ../* | length"#));
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assert_eq!(actual.out, "2");
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let actual = nu!(
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cwd: dirs.test().join("abcd/?"), format!(r#"ls ../* | length"#));
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assert_eq!(actual.out, "3");
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assert_eq!(actual.out, "2");
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})
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}
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@ -237,6 +237,12 @@ fn list_files_from_two_parents_up_using_multiple_dots() {
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);
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assert_eq!(actual.out, "5");
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let actual = nu!(
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cwd: dirs.test().join("foo/bar"),
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r#"ls ... | sort-by name | get name.0 | str replace -a '\' '/'"#
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);
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assert_eq!(actual.out, "../../andres.xml");
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})
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}
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@ -759,3 +765,46 @@ fn list_with_multiple_path() {
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assert_eq!(actual.out, "0");
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})
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}
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#[test]
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fn list_inside_glob_metachars_dir() {
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Playground::setup("list_files_inside_glob_metachars_dir", |dirs, sandbox| {
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let sub_dir = "test[]";
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sandbox
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.within(sub_dir)
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.with_files(&[EmptyFile("test_file.txt")]);
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let actual = nu!(
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cwd: dirs.test().join(sub_dir),
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"ls test_file.txt | get name.0 | path basename",
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);
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assert!(actual.out.contains("test_file.txt"));
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});
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}
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#[test]
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fn list_inside_tilde_glob_metachars_dir() {
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Playground::setup(
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"list_files_inside_tilde_glob_metachars_dir",
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|dirs, sandbox| {
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let sub_dir = "~test[]";
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sandbox
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.within(sub_dir)
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.with_files(&[EmptyFile("test_file.txt")]);
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// need getname.0 | path basename because the output path
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// might be too long to output as a single line.
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let actual = nu!(
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cwd: dirs.test().join(sub_dir),
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"ls test_file.txt | get name.0 | path basename",
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);
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assert!(actual.out.contains("test_file.txt"));
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let actual = nu!(
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cwd: dirs.test(),
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"ls '~test[]' | get name.0 | path basename"
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);
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assert!(actual.out.contains("test_file.txt"));
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},
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);
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}
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