fsutil

Package fsutil provides a collection of utility functions that extend the capabilities of the Go standard filesystem package. It offers a variety of tools for working with files and directories, making it easier to perform common filesystem operations.

Installation

go get github.com/shelepuginivan/fsutil

Documentation

Is available on pkg.go.dev.

Details about IsBinary, IsBinarySlow and IsBinaryFast

Note

Available since v0.2.0.

Each IsBinary, IsBinarySlow and IsBinaryFast report whether data is binary, i.e. a non human-readable text, such as image, audio or video stream.

• IsBinarySlow has the best accuracy and the worst speed, since it checks the entire byte sequence.
• IsBinaryFast has the worst accuracy and the best speed since it checks only first line of the sequence.
• IsBinary is in the middle — it checks the first and every 2^N line (i.e. 0, 1, 2, 4, 8, 16, etc.), providing a good accuracy while keeping good performance.

The table below shows the accuracy of these functions, determined by testing against random byte sequences:

Function	Mimimal accuracy	Actual accuracy
IsBinary	990/1000 (99.0%)	1000/1000 (100.0%)
IsBinarySlow	1000/1000 (100.0%)	1000/1000 (100.0%)
IsBinaryFast	950/1000 (95.0%)	991/1000 (99.1%)