OSS Highlights of November - December 2021

Like the previous OSS highlights, I'll give an overview of OSS work I did in November and December of 2021. I'd like to emphasize that I can do this work because of sponsoring via:

Clojurists Together
Github Sponsors
OpenCollective (also see the clj-kondo one)

for which I'm very grateful. I love helping peoeple by providing OSS software and this is now my main activity.

Enterprise support

I'd like to add that I'm also offering enterprise support for my OSS projects. It might be good to know there are options beyond sponsoring if your company needs an extra level of support for my OSS libraries. Recurring sponsors are eligible for a discount. Feel free to reach out via Twitter DM, e-mail or on Clojurians Slack to discuss options.

Do you need help with #clojure #graalvm compilation, #clojure static analysis/linting tools, or anything related to my #oss projects? I'm available for USD 150/hr. I also do custom license/support contracts if @github sponsors doesn't fit your business.#cljkondo #babashka #sci
— (λ. borkdude) (@borkdude) December 27, 2021

Babashka

Native, fast starting Clojure interpreter for scripting.

Releases: 0.7.3 , 0.7.2 , 0.7.0 , 0.6.8 , 0.6.7 , 0.6.6 , 0.6.5

Highlights:

Load tasks and deps from other bb.edn file using --config and --deps-root options #1110
Add compatibility with clojure.spec.alpha. See babashka/spec.alpha and this blog post.
Compatibility with a fork of tools.namespace. This allows running the Cognitect test-runner (Cognitest) from source.
tools.bbuild.
Compatiblity with markdown-clj (see blog)

Clj-kondo

A linter for Clojure (code) that sparks joy.

Releases: 2021.12.19 , 2021.12.16 , 2021.12.01

Highlights:

Automatically load configurations from .clj-kondo/*/*/config.edn. This can be disabled with :auto-load-configs false. See issue #1492. This makes life easier for those using clojure-lsp which already uses the --copy-configs option by default.
Several new linters: :reduce-without-init, :duplicate-case-test-constant, :unexpected-recur, :used-underscored-binding and a few around docstrings. See the linters.md docs for details.
better-cond now bundles a clj-kondo config!

Note that most new linters in clj-kondo are going to default to :level :off unless they detect a compile time error, like :duplicate-case-test-constant.

Special thanks to new contributor @mknoszlig who has been quite active in adding new linters in collaboration with me.

SCI

Configurable Clojure interpreter suitable for scripting and Clojure DSLs.

Releases: 0.2.8

Highlights:

Add copy-ns macro for copying an entire Clojure or ClojureScript namespace into a SCI context
clojure.core/read improvements
Lots of little 'devil is in the details' correctness improvements