In this post I'll give updates about open source I worked on during September 2023.

To see previous OSS updates, go here.

Sponsors

I'd like to thank all the sponsors and contributors that make this work possible! Open the details section for more info.

Updates

Last week I delivered my babashka talk at Strange loop talk and much of my attention went to the preparation of that (slides here). Hopefully the talk will be online soon. Keep an eye on the Strange Loop Youtube channel.

EDIT: the talk is now available here.

I did manage to get some coding done as well, despite testing positive for COVID when I arrived back home...

Here are updates about the projects/libraries I've worked on last month.

• clj-kondo: static analyzer and linter for Clojure code that sparks joy. Published a new version (2023.09.07) with these changes:
  • #1332: New linter :unused-alias. See docs.
  • #2143: false positive type warning for clojure.set/project
  • #2145: support ignore hint on multi-arity branch of function definition
  • #2147: use alternative solution as workaround for https://github.com/cognitect/transit-clj/issues/43
  • #2152: Fix false positive with used-underscored-binding with core.match
  • #2150: allow command line options = as in --fail-level=error
  • #2149: :lint-as clojure.core/defmacro should suppress &env as unresolved symbol
  • #2161: Fix type annotation for clojure.core/zero? to number -> boolean
  • #2165: Fix error when serializing type data to cache
  • #2167: Don't crash when :unresolved-symbol linter config contains unqualified symbol
  • #2170: :keyword-binding linter should ignore auto-resolved keywords
  • #2172: detect invalid amount of args and invalid argument type for throw
  • #2164: deftest inside let triggers :unused-value
  • #2154: add :exclude option to :deprecated-namespace linter
  • #2134: don't warn on usage of private var in data_readers.clj(c)
  • #2148: warn on configuration error in :unused-refeferred-var linter
  • Expose more vars in clj-kondo.hooks-api interpreter namespace
• babashka: native, fast starting Clojure interpreter for scripting. Version 1.3.185 released!
  • #1624: Use Oracle GraalVM 21 (@lispyclouds)
  • Use PGO to speed up loops (now 2-3x faster for (time (loop [val 0 cnt 10000000] (if (pos? cnt) (recur (inc val) (dec cnt)) val)))!)
  • Bump babashka.http-client to v0.4.15
  • Bump rewrite-clj to v0.1.1.47
  • #1619: Fix reflection issue with Thread/sleep in core.async/timeout
  • Support interop on java.util.stream.IntStream
  • #1513: Fix interop on Thread/sleep with numbers that aren't already longs
  • Bump babashka.cli to 0.7.53
  • Fix #babashka.nrepl/66
  • Various nREPL server improvements (classpath op, file lookup information for cider-find-var)
  • Bump cheshire to 5.12.0
• squint: CLJS syntax to JS compiler A lot of happened in squint this month:
  • Many core var implementations got added: reduce-kv, max, min, every-pred, into-array, some-fn, keep-indexed, iterate, juxt, compare, to-array, fn?
  • Bun compatibility
  • Lots of bug fixes
  • REPL improvements
  • Adopt CLJS truth semantics: 0 and "" are no longer considered falsey
  • Lots more coming next month!
• neil: A CLI to add common aliases and features to deps.edn-based projects Version 0.2.61 released
  • #181: fix neil --version
  • fix tests by referring to latest hiccup (@teodorlu)
  • #180: neil dep upgrade: allow upgrading from an unstable version to the latest unstable version (@teodorlu)
  • #180: neil dep upgrade: with --unstable, opt-into unstable library updates (@teodorlu)
  • #183: Don't drop :exclusions when running neil dep add or neil dep upgrade ([@borkdude] and [@teodorlu])
• CLI: Turn Clojure functions into CLIs!
  • Small release with the option to add your own header on top of format-opts, thanks to @Sohalt
• http-client: babashka's http-client
  • A number of small bugfixes and additions
• A number of experiments around squint:
  • bun-squint-loader: a demo of how to implement a loader for bun which lets you directly load .cljs files which are then compiled using
  • squint cloudflare worker
• rewrite-edn: Utility lib on top of rewrite-clj with common operations to update EDN while preserving whitespace and comments
  • Fixed a round-tripping issue by bumping rewrite-clj
• tools-deps-native and tools.bbuild: use tools.deps directly from babashka
  • aarch64 binary (thanks @TimoKramer for contributing)
  • update upstream projects
• cherry: Experimental ClojureScript to ES6 module compiler
  • Bump shared compiler code with squint and publish new version
• deps.clj: A faithful port of the clojure CLI bash script to Clojure
  • Bumped tools jar and fixed a bug concerning SHA comparison
• SCI: Configurable Clojure/Script interpreter suitable for scripting and Clojure DSLs
  • Add experimental :static-methods override to control how a static method is invoked. This allowed a fix in babashka for Thread/sleep on non-longs and for Class/forName which works arond a bug in Oracle GraalVM 21.
• sci.configs: A collection of ready to be used SCI configs.
  • @holyjak made a configuration for Fulcro which can be seen live in action here

Other projects

These are (some of the) other projects I'm involved with but little to no activity happened in the past month.