~golangweekly | Bookmarks (5)

Building an Interactive Shell in Go — From the folks working on the Dolt database (which includes a CLI to take SQL queries and feed them to the database) comes a guide to creating a CLI that’s intuitive and includes features like command history and autocompletion. ishell is their library of choice.

Creating a Postgres Logical Replication System in Go — The folks behind the (Go-powered) Dolt database are working on a feature to replicate data from Postgres and share what they’ve learnt so far in this detailed post.

🎨 Adding Color to Terminal Output in Go — Shows first without any dependencies at all, but then how fatih/color can make it tidier.

Testing Out Profile-Guided Optimization on Dolt's SQL Benchmarks — Profile-guided optimization was introduced in Go 1.20. The Dolters(?) created a benchmark and saw small (though not trivial) improvements to both read and write latency without changing any code. It’s almost certainly worth trying if your apps would benefit from some marginal performance improvements in return for a little experimentation time.

Initial Thoughts on Go 1.22 — 1.22 is due next month, but the release candidate gives us a look at plenty of changes and improvements coming down the pike, including new default behavior for loop variables in for loops, the ‘rangefunc’ experiment (more on that next), and even some performance improvements.