Show HN: A cp wrapper that appends –reflink=always if possible to speed it up

Category: cli-tool

Tags: cp-wrapper, rust, file-copy

Score: 3.8/10 (Innovation: 3, Technical: 3, Documentation: 5, Utility: 4)

fastcp is a thin Rust wrapper around the cp command that automatically adds --reflink=always flag when the filesystem supports copy-on-write, speeding up large file copies. It caches filesystem detection results to avoid repeated checks, offering minor performance improvements on supported systems.

Target audience: backend devs, devops, system administrators

Repository: https://github.com/CallMeAlphabet/fastcp · Rust · GPL-3.0 · 2 stars

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