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@@ -585,3 +585,44 @@ pub fn find_matching_file(dir: &Path, starts_with: &str, ends_with: &str) -> Opt
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})
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})
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}
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}
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+/// Searches for the first file in the given directory whose file name
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+/// satisfies the provided condition.
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+///
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+/// # Arguments
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+///
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+/// * `dir` - Path to the directory to search.
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+/// * `condition` - A closure that takes a file name (`&str`) and returns `true`
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+/// if the file matches the desired condition.
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+///
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+/// # Returns
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+///
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+/// An `Option<PathBuf>` containing the path to the first matching file,
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+/// or `None` if no file matches or the directory can't be read.
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+///
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+/// # Examples
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+///
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+/// ```
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+/// use std::path::Path;
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+/// let result = find_file(Path::new("."), |name| name.ends_with(".rs"));
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+/// ```
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+pub fn find_file<F>(dir: &Path, condition: F) -> Option<PathBuf>
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+where
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+ F: Fn(&str) -> bool,
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+{
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+ fs::read_dir(dir).ok()?.find_map(|entry| {
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+ let path = entry.ok()?.path();
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+
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+ if path.is_file()
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+ && path
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+ .file_name()
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+ .and_then(|name| name.to_str())
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+ .map(&condition)
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+ .unwrap_or(false)
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+ {
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+ Some(path)
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+ } else {
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+ None
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+ }
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+ })
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+}
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+
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