Nefaxer

Nefaxer is a high-performance Rust tool for directory indexing and change detection. It walks trees in parallel, optionally hashes file contents (Blake3), and stores metadata in a fast SQLite index. Compare a new walk against a previous snapshot to detect additions, deletions, and modifications.

UBLX uses Nefaxer for snapshots, the Delta tab, and duplicate detection. You can also run the CLI or library standalone.

What it does

Capability	Summary
Parallel indexing	Streaming walk → metadata workers → batched SQLite writes
Drive-adaptive	SSD / HDD / network detection tunes threads and walk strategy
Diffing	Added / removed / modified paths vs prior index
Optional hashing	Blake3 for content-accurate change detection

Explore

Page	Contents
Install	cargo install, library, releases
CLI	Index, dry-run, flags
Architecture	Pipeline, WAL, drive tuning
Configuration	.nefaxer.toml defaults
Database schema	.nefaxer SQLite layout
Library	nefax_dir, types, examples → docs.rs
UBLX integration	Snapshots, cache, Delta mode

Quick start

cargo install nefaxer
nefaxer /path/to/project

Dry-run diff without updating the index:

nefaxer --dry-run -l /path/to/project

See CLI for hashing, excludes, and encryption options.