refmt is a serialization and object-mapping library.

HyperLogLog is an improved version of HyperLogLog for the count-distinct problem, approximating the number of distinct elements in a multiset. This implementation offers enhanced performance, flexibility, and simplicity while maintaining accuracy.

This package provides a parser for RDF files linearized using RDF/XML format. It is used to represent the RDF files in memory and write back in possibly different formats like JSON and XML.

Package semver provides the ability to work with Semantic Versions in Go.

This package provides a variable size buffer pool for Golang.

go-buffer-pool provides:

• BufferPool: A pool for re-using byte slices of varied sizes. This pool will always return a slice with at least the size requested and a capacity up to the next power of two. Each size class is pooled independently which makes the BufferPool more space efficient than a plain sync.Pool when used in situations where data size may vary over an arbitrary range.

• Buffer: a buffer compatible with bytes.Buffer but backed by a BufferPool. Unlike bytes.Buffer, Buffer will automatically shrink on read, using the buffer pool to avoid causing too much work for the allocator. This is primarily useful for long lived buffers that usually sit empty.

This package provides cross-platform Golang helpers for taking user input from the terminal while not echoing the input back (similar to getpasswd). The package uses syscalls to avoid any dependence on cgo, and is therefore compatible with cross-compiling.

This package provides a library, which supports copying value from one struct to another.

Open a file, directory, or URI using the OS's default application for that object type. Optionally, you can specify an application to use. On GNU/Linux, this is a proxy for the xdg-open command.

This is a Unix utility that outputs randomness. It is a thin wrapper around crypto/rand.

This package implements a Perl5 like temporary variable, for applications requiring reloading of configuration from environment variables or during the tests temporarily change the value of an environment variable in Golang.

This package is toml parser and encoder for Go. The interface is similar to Go's standard library json and xml package. This package provides a command line interface (CLI) tool.

Ristretto is a concurrent, fixed size, in-memory cache with a dual focus on throughput and hit ratio performance.

The terminfo package implements terminfo database reading for Go.

This package provides a way to attach key/value annotations to a Go context.Context.

This package provides a Go library to create and print diffs.

This package is a Go library that draws progress bars on the terminal.

This package provides a functionality for encoding and decoding unsigned varints.

Package seccomp provides bindings for libseccomp, a library wrapping the Linux seccomp syscall. Seccomp enables an application to restrict system call use for itself and its children.

This package provides an implementation of the Unicode Text Segmentation specification for Go. Specifically, it currently includes only the grapheme cluster segmentation algorithm.

This package provides a means to obtain time.Duration from a string. The string can be a string retorned for time.Duration or a similar string with weeks or days too.

GoLog is a level-based logger written in Go.

It's an alternative fork of https://github.com/mattn/go-runewidth.

Package klog implements logging analogous to the Google-internal C++ INFO/ERROR/V setup. It provides functions Info, Warning, Error, Fatal, plus formatting variants such as Infof. It also provides V-style logging controlled by the -v and -vmodule=file=2 flags. It's a is a permanent fork of https://github.com/golang/glog.

This package implements a functionality to modify/update field tags in structs making it easy to update, add or delete the tags in a struct field with possibility to add and remove tag options. It's intended to be used by an editor, but also has modes to run it from the terminal.