#json #toml #json-toml #io

simple-fs

Simple and convenient API for File System access

32 releases (6 breaking)

Uses new Rust 2024

new 0.6.0 Apr 16, 2025
0.6.0-rc.3 Mar 10, 2025
0.3.1 Nov 24, 2024
0.1.3 Mar 9, 2024
0.0.4 Dec 31, 2023

#176 in Filesystem

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486 downloads per month
Used in 6 crates (5 directly)

MIT/Apache

85KB
2K SLoC

simple-fs

simple-fs is a crate that provides a set of convenient and common file APIs built on std::fs, walkdir, and globset.

Concept

simple-fs operates under the assumption that paths that are not utf8 are not visible to the API, simplifying many of the path-related APIs.

The main construct of simple-fs is the SPath structure, which contains a Utf8PathBuf and ensures the following:

  • It is UTF-8 by contract.
  • Posix normalize the path, meaning only / (no \), and redundant // or /./ are collapsed to one ./.
  • It does not have any \\?\ on Windows.

The SFile is a File struct that contains a SPath.

By applying the above rules, path/file APIs can be drastically simplified, and both structs offer many Path functions, with &str as the return type.

This crate also offers a simple and scalable way to list or iterate on files, given a glob:

  • iter_files(dir, include_globs: Option<&[&str]>, list_options: Option<ListOptions>) -> Result<impl Iter SFile>
  • list_files(dir, include_globs: Option<&[&str]>, list_options: Option<ListOptions>) -> Result<Vec<SFile>>
  • ensure_dir(dir_path) make sure all the dir paths are created.
  • ensure_file_dir(file_path) makes sure the file directory exists.

The crate also includes other convenient, common APIs:

  • read_to_string, which reports the file path if not found.
  • get_buf_reader, which also reports the file path if not found or in case of an error.

For more control, it is recommended to use std::fs, walkdir, globset, and other crates directly.

This is a very early implementation, with more to come.

Happy coding!

Cargo Features

Feature Functions Included
with-json load_json, save_json, save_json_pretty
with-toml load_toml, save_toml
bin-nums save_be_f64, load_be_f64, save_le_f64, ...
full All the above.
default None of the above. See below.

Changes

  • 0.6.x (rc for now)
    • NOW uses Utf8 by default; std path moved to ..std_path.. naming.
    • NOW normalizes all SPath to be Posix based (i.e., / and remove redundant // and /./)
    • SPath/SFile.
    • ! deprecate '.to_str()' now '.as_str()'
    • ! .diff(..) - Now take AsRef Utf8Path, return Option (use try_diff(..) for Result)
    • + Add collapse, into_collapsed, is_collapsed, try_collapse
    • ! .clean(..) is replaced by .collapse()
    • + list/iter files/dirs - add support for negative glob patterns in include_globs (convenience)
    • ! API CHANGE - now all default to Utf8Path (from camino crate). std_path...() for the std path
    • ^ sfile/spath - add is_absolute/is_relative passthrough
  • 0.5.0
    • Internal use camino, utf8path.
    • Reimplementation of the iter_files iterator, supporting absolute path globs out of the base directory.
  • 0.4.0
    • Update to notify 8 (should not have any API changes)
    • API CHANGE - SPath - Now SPath::from(&str/&String,String) (no need for try_from)
  • 0.3.1 from 0.3.0
    • This is a fix; however, it can change behavior on list/iter files.
      • Previously, the glob * was traversing into subfolders /, which was not the intended behavior.
      • Now, in 0.3.1, it uses the glob literal_separator = true, so it won't descend further.
      • You can now use *.rs to list direct descendants and **/*.rs for nested files.
      • The glob also needs to include the dir given in the list; otherwise, set ListOptions.relative_glob = true to make it relative.
  • 0.3.x from 0.2.x
    • API CHANGE - watch - changes the rx to be flume based (works on both sync/async).
  • 0.2.0 from 0.1.x
    • API CHANGE - now .file_name() and .file_stem() return Option<&str>; use .name() or .stem() to get &str.

Dependencies

~4–13MB
~153K SLoC