README.md

tree-rs

A rewrite of tree in Rust.

Restrictions:

• no modifications to original C code
• avoid using any external crates unless absolutely necessary
• don't blindly replicate or copy the original C code but take inspiration (use Rust types)

0.1.0

• read arguments from the terminal when called
• print matching (roughly, most flags won't be supported) usage when --help is used
• return exit code 0
• print version string (bonus: take from Cargo.toml)
• handle unsupported argument. Print Invalid argument \--arg`` & usage and return exit code 2
• write a rust test to confirm the behaviour

0.1.1

• when called with no args, print X directories, Y files

0.1.2

• display tree view of directories & files in current working dir
• sort by name (default behaviour)
• support -a option (show all files including hidden)
• support -d option (list directories only)
• if any directory cannot be opened (permission, etc), return exit code 2. Else return 0 on success

0.1.3

• support arbitrary list of directories as positional args and perform tree search & display
• when multiple directories are used, the count of dirs & files includes all locations
• support -l option (list directories only)
• write integration test, assert C tree == tree-rs