~golangweekly | Bookmarks (137)

New Low-Level Tools for Garbage Collection Efficiency — A look at two new features offered by Go 1.24’s garbage collector: runtime.AddCleanup and weak.Pointer. Cleanups are like finalizers, but get around some of their quirks by not resurrecting objects they’re attached to. Weak pointers, meanwhile, let you reference objects without preventing their garbage collection.

ghw 0.15.0: A Go Hardware Discovery/Inspection Library — Find out things about the memory, CPU, storage, network support, and similar things about the host computer. Focused on Linux and Windows, with partial macOS support.

Building a Secure Session Manager — The stateless nature of requests to a webapp demands some sort of session management, most commonly via a cookie containing a unique ID to identify the user. Mohamed looks at a way to keep this whole process secure.

Different Ways of Working with SQL Databases in Go — Starting with a simple schema presenting a basic blog system, Alex walks through a variety of approaches from working with raw SQL and database/sql to sqlx, using ORMs, and sqlc.

The Cost of Go's panic and recover — When something goes unexpectedly and critically wrong in a Go program you might use panic to abort things quickly, but did you know you can use recover to manage what happens after a panic? This means you could use it as a sort of control flow mechanism, if you were in a particularly unorthodox mood..

Tips to Debug Hanging Go Programs — Next time your Go app becomes unresponsive, these tips can help you find the issue by forcing a stack trace or using Delve to attach to the process (or core dump) and revive the program.

Keep Postgres Maintenance from Slowing Down Your Go App — Secure your spot to learn the proactive maintenance practices that uncover hidden database performance risks, like slow queries, checkpoint behavior, & connection issues, before they escalate.

Calling Rust from 'Cursed' Go — Cgo is Go’s mechanism for calling external/foreign functions but its performance often causes consternation. Enter purego, a still-in-beta way to make such calls without Cgo.

Nil Channels in Go — Nil channels seem to baffle many Gophers, so Vishnu went on a quest to figure out why in a particular case. This led him to the wisdom of a new Go proverb: “Init when you split; Nil when you merge.”

The Magic of Small Engineering Teams — How PostHog uses small teams to ship fast and scale at the same time.

Gore 0.6: A Full Featured Go REPL Environment — You get all the niceties you’d expect like line editing, history, multi-line input, the ability to import packages, and, in this latest build, gopls-powered code completion too.

Go Clean Template — Inspired by Uncle Bob’s ‘Clean Code’ principles, this repo attempts to provide a ‘clean architecture template’ for building Go-powered services that are well organized and won’t turn into a mess. You be the judge.

go-git 5.14: An Extensible Git Implementation in Pure Go — “Manipulate git repositories at low level (plumbing) or high level (porcelain), through an idiomatic Go API.” Now requires Go 1.23+.

sqldef 1.0: Idempotent Schema Management for Databases — A Go-powered CLI tool and WASM library for diffing SQL schemas (demo here). Supports MySQL, Postgres, SQLite and SQL Server. Built by one of Ruby’s core team members, too.

Faster Go Maps with Swiss Tables — One of Go’s newest features is a revamped map implementation powered by a new hash table algorithm called Swiss Table that boosts map operations up to 60% faster in microbenchmarks, while reducing memory overhead. Here’s a look at how it works.

nativewebp: Native WebP Image Support for Go — WebP is a modern raster graphics format commonly used on the Web and this library lets you work with it (though only its VP8L lossless form, for now) from Go without dependencies.

godoc.nvim: Fuzzy Search Go's Docs from Neovim — Adds a quick way to search and browse Go documentation from within the Neovim editor.

GoChromecast: Discover Devices and Stream Media to Chromecast Devices — A Go-powered tool that implements the protocol used by Chromecast devices.

How to Manage Tool Dependencies in Go 1.24+ — We’ve touched on the new go tool subcommand a few times before, but this is a bit more usage-focused and includes a nice tip about separating your tools into their own module file.

Extensible Wasm Applications with Go — “… the ability to build a WASI reactor and export Go functions to Wasm in Go 1.24 represent a significant step forward for Go’s WebAssembly capabilities. These features empower developers to create more versatile and powerful Go-based Wasm applications …”

Minecraft From Scratch: A Simple Go Minecraft Clone — A fun project to replicate Minecraft’s infinite, procedurally-generated navigable landscapes using Go and OpenGL 4.1 (as provided via the go-gl/gl bindings – yes, cgo is required here).

Testing Concurrent Code with testing/synctest — Concurrency is one of Go’s natural strengths, but testing heavily concurrent programs can be tricky. Go 1.24 introduces a new (though experimental and hidden behind an environment variable) package for testing code involving time or concurrency. The Go team wants you to have a play and send in your feedback.

gno.land Offers Grants & Bounties for Building Go-Powered Decentralized Apps — App builders, Go enthusiasts, tinkerers: come and build on gno.land, a smart contract platform for a freer, fairer world.