Suture provides Erlang-ish supervisor trees for Go. "Supervisor trees" -> "sutree" -> "suture" -> holds your code together when it's trying to die.

It is intended to deal gracefully with the real failure cases that can occur with supervision trees (such as burning all your CPU time endlessly restarting dead services), while also making no unnecessary demands on the "service" code, and providing hooks to perform adequate logging with in a production environment

DHCPv4 and DHCPv6 decoding/encoding library for Golang. This package is split in several logical parts:

• dhcpv4 - implementation of DHCPv4 packet, client and server

• netboot - network booting wrappers on top of dhcpv6 and dhcpv4

• iana - several IANA constants, and helpers used by dhcpv6 and dhcpv4

• rfc1035label - simple implementation of RFC1035 labels, used by dhcpv6 and dhcpv4

• interfaces - a thin layer of wrappers around network interfaces

Ironwood is a routing library with a net.PacketConn-compatible interface using ed25519.PublicKeys as addresses. Basically, you use it when you want to communicate with some other nodes in a network, but you can't guarantee that you can directly connect to every node in that network. It was written to test improvements to / replace the routing logic in Yggdrasil, but it may be useful for other network applications.

This package provides a library for calling C functions from Go without Cgo.

Featues:

• build for other platforms easily without a C compiler

• efficiently cache entirely Go builds

• using Cgo generates a C wrapper function for each C function called

• load symbols at runtime and use it as a plugin system

• call into other languages that are compiled into shared objects

• works even with CGO_ENABLED=1 so incremental porting is possible

Package netns allows ultra-simple network namespace handling. NsHandles can be retrieved and set. Note that the current namespace is thread local so actions that set and reset namespaces should use LockOSThread to make sure the namespace doesn't change due to a goroutine switch. It is best to close NsHandles when you are done with them. This can be accomplished via a `defer ns.Close()` on the handle. Changing namespaces requires elevated privileges, so in most cases this code needs to be run as root.

Luar is designed to make using Lua from Go more convenient. Go structs, slices and maps can be automatically converted to Lua tables and vice-versa. The resulting conversion can either be a copy or a proxy. In the latter case, any change made to the result will reflect on the source.

Any Go function can be made available to Lua scripts, without having to write C-style wrappers.

Luar support cyclic structures (lists, etc.).

User-defined types can be made available to Lua as well: their exported methods can be called and usual operations such as indexing or arithmetic can be performed.

Accelerate SHA256 computations in pure Go using AVX512 and AVX2 for Intel and ARM64 for ARM. On AVX512 it provides an up to 8x improvement (over 3 GB/s per core) in comparison to AVX2.

This package is designed as a replacement for crypto/sha256. For Intel CPUs it has two flavors for AVX512 and AVX2 (AVX/SSE are also supported). For ARM CPUs with the Cryptography Extensions, advantage is taken of the SHA2 instructions resulting in a massive performance improvement.

This package uses Golang assembly. The AVX512 version is based on the Intel's "multi-buffer crypto library for IPSec" whereas the other Intel implementations are described in "Fast SHA-256 Implementations on Intel Architecture Processors" by J. Guilford et al.

Package archiver facilitates convenient, cross-platform, high-level archival and compression operations for a variety of formats and compression algorithms.

Features:

• stream-oriented APIs

• automatically identify archive and compression formats

• traverse directories, archive files, and any other file uniformly as io/fs file systems

• compress and decompress files

• create and extract archive files

• walk or traverse into archive files

• extract only specific files from archives

• insert (append) into .tar and .zip archives

• read from password-protected 7-Zip files

• numerous archive and compression formats supported

• extensible (add more formats just by registering them)

• cross-platform, static binary

• pure Golang (no cgo)

• multithreaded Gzip

• adjust compression levels

• automatically add compressed files to zip archives without re-compressing

• open password-protected rar archives

Supported compression formats:

• brotli (.br)

• bzip2 (.bz2)

• flate (.zip)

• gzip (.gz)

• lz4 (.lz4)

• lzip (.lz)

• snappy (.sz)

• xz (.xz)

• zlib (.zz)

• zstandard (.zst)

Supported archive formats:

• .zip

• .tar (including any compressed variants like .tar.gz)

• .rar (read-only)

• .7z (read-only)

Package aurora implements ANSI-colors

compress provides various compression algorithms.

This package provides generic implementations for Go.

Package strcase converts strings to various cases.

This package provides a statistical library for Golang.

Package sortorder implements sort orders and comparison functions.

This package implements column-formatted output for Golang.

This package provides additions to Go's stdlib testing.

This package provides additions to Go's stdlib testing.

Package genetlink implements generic netlink interactions and data types.

reflect api that avoids runtime reflect.Value cost

Package errdefs defines the common errors used throughout containerd packages.

Package promise provides a complete promise and future implementation.

This Go package removes ANSI escape codes from strings.

Package quicktest provides a collection of Go helpers for writing tests.