OSS updates March and April 2025
In this post I'll give updates about open source I worked on during March and April 2025.
To see previous OSS updates, go here.
Sponsors
I'd like to thank all the sponsors and contributors that make this work possible. Without you the below projects would not be as mature or wouldn't exist or be maintained at all! So a sincere thank you to everyone who contributes to the sustainability of these projects.
Current top tier sponsors:
Open the details section for more info about sponsoring.
Sponsor info
If you want to ensure that the projects I work on are sustainably maintained, you can sponsor this work in the following ways. Thank you!
- Github Sponsors
- The Babaska or Clj-kondo OpenCollective
- Ko-fi
- Patreon
- Clojurists Together
On to the projects that I've been working on!
Blog posts
I blogged about an important improvement in babashka regarding type hints here.
Interviews
Also I did an interview with Jiri from Clojure Corner by Flexiana, viewable here.
Updates
Here are updates about the projects/libraries I've worked on in the last two months.
- babashka: native, fast starting Clojure interpreter for scripting.
- Improve Java reflection based on provided type hints (read blog post here)
- Add compatibility with the fusebox library
- Fix virtual
ThreadBuilderinterop - Add
java.util.concurrent.ThreadLocalRandom - Add
java.util.concurrent.locks.ReentrantLock - Add classes:
java.time.chrono.ChronoLocalDatejava.time.temporal.TemporalUnitjava.time.chrono.ChronoLocalDateTimejava.time.chrono.ChronoZonedDateTimejava.time.chrono.Chronology
- #1806: Add
cheshire.factorynamespace (@lread) - Bump GraalVM to
24 - Bump SCI to
0.9.45 - Bump edamame to
1.4.28 - #1801: Add
java.util.regex.PatternSyntaxException - Bump core.async to
1.8.735 - Bump cheshire to
6.0.0 - Bump babashka.cli to
0.8.65
- clerk: Moldable Live Programming for Clojure
- Replace tools.analyzer with a more light-weight analyzer which also adds support for Clojure 1.12
- squint: CLJS syntax to JS compiler
- #653: respect
:context exprincompile-string - #657: respect
:context exprinset!expression - #659: fix invalid code produced for REPL mode with respect to
return - #651 Support
:require+:rename+ allow renamed value to be used in other :require clause - Fix #649: reset ns when compiling file and fix initial global object
- Fix #647: emit explicit
nullwhen written in else branch ofif - Fix #640: don't emit anonymous function if it is a statement (@jonasseglare)
- Fix #643: Support lexicographic compare of arrays (@jonasseglare)
- Fix #602: support hiccup-style shorthand for id and class attributes in
#jsxand#html - Fix #635:
rangefixes - Fix #636: add
run! defclass: elide constructor when not provided- Fix #603: don't emit multiple returns
- Drop constructor requirement for
defclass
- #653: respect
- clj-kondo: static analyzer and linter for Clojure code that sparks joy.
- #2522: support
:config-in-nson:missing-protocol-method - #2524: support
:redundant-ignoreon:missing-protocol-method - #1292: NEW linter:
:missing-protocol-method. See docs - #2512: support vars ending with
., e.g.py.according to clojure analyzer - #2516: add new
--reproflag to ignore home configuration - #2493: reduce image size of native image
- #2496: Malformed
deftypeform results inNPE - #2499: Fix
(alias)bug (@Noahtheduke) - #2492: Report unsupported escape characters in strings
- #2502: add end locations to invalid symbol
- #2511: fix multiple parse errors caused by incomplete forms
- document var-usages location info edge cases (@sheluchin)
- Upgrade to GraalVM 24
- Bump datalog parser
- Bump built-in cache
- #2522: support
- SCI: Configurable Clojure/Script interpreter suitable for scripting
- Fix #957:
sci.async/eval-string+should return promise with:val nilfor ns form rather than:val <Promise> - Fix #959: Java interop improvement: instance method invocation now leverages type hints
- Fix #942: improve error location of invalid destructuring
- Add
volatile?to core vars - Fix #950: interop on local in CLJS
- Bump edamame to
1.4.28
- Fix #957:
- quickdoc: Quick and minimal API doc generation for Clojure
- Fix #32: fix anchor links to take into account var names that differ only by case
- Revert source link in var title and move back to
<sub> - Specify clojure 1.11 as the minimal Clojure version in
deps.edn - Fix macro information
- Fix #39: fix link when var is named multiple times in docstring
- Upgrade clj-kondo to
2025.04.07 - Add explicit
org.babashka/clidependency
- CLI: Turn Clojure functions into CLIs!
- process: Clojure library for shelling out / spawning sub-processes
- html: Html generation library inspired by squint's html tag
- cherry: Experimental ClojureScript to ES6 module compiler
- Add
cljs.pprint/pprint - Add
add-tap - Bump squint compiler common which brings in new
#htmlid and class shortcuts + additional features and optimizations, such as an optimization foraset
- Add
- nbb: Scripting in Clojure on Node.js using SCI
- Add better Deno +
jsr:dependency support, stay tuned.
- Add better Deno +
- instaparse-bb: Use instaparse from babashka
- Several improvements which makes babashka compatible with test.chuck. See this screenshot!
- edamame: Configurable EDN/Clojure parser with location metadata
- #117: throw on triple colon keyword
- fs - File system utility library for Clojure
- #141:
fs/matchdoesn't match when root dir contains glob or regex characters in path - #138: Fix
fs/update-fileto support paths (@rfhayashi)
- #141:
- sql pods: babashka pods for SQL databases
- Upgrade to GraalVM 23, fixes encoding issue with Korean characters
Other projects
These are (some of the) other projects I'm involved with but little to no activity happened in the past month.
Click for more details
- rewrite-edn: Utility lib on top of
- deps.clj: A faithful port of the clojure CLI bash script to Clojure
- scittle: Execute Clojure(Script) directly from browser script tags via SCI
- rewrite-clj: Rewrite Clojure code and edn
- pod-babashka-go-sqlite3: A babashka pod for interacting with sqlite3
- tools-deps-native and tools.bbuild: use tools.deps directly from babashka
- http-client: babashka's http-client
- http-server: serve static assets
- bbin: Install any Babashka script or project with one comman
- sci.configs: A collection of ready to be used SCI configs.
- Added a configuration for
cljs.spec.alphaand related namespaces
- Added a configuration for
- qualify-methods
- Initial release of experimental tool to rewrite instance calls to use fully qualified methods (Clojure 1.12 only0
- neil: A CLI to add common aliases and features to deps.edn-based projects.
- tools: a set of bbin installable scripts
- sci.nrepl: nREPL server for SCI projects that run in the browser
- babashka.json: babashka JSON library/adapter
- squint-macros: a couple of macros that stand-in for applied-science/js-interop and promesa to make CLJS projects compatible with squint and/or cherry.
- grasp: Grep Clojure code using clojure.spec regexes
- lein-clj-kondo: a leiningen plugin for clj-kondo
- http-kit: Simple, high-performance event-driven HTTP client+server for Clojure.
- babashka.nrepl: The nREPL server from babashka as a library, so it can be used from other SCI-based CLIs
- jet: CLI to transform between JSON, EDN, YAML and Transit using Clojure
- pod-babashka-fswatcher: babashka filewatcher pod
- lein2deps: leiningen to deps.edn converter
- cljs-showcase: Showcase CLJS libs using SCI
- babashka.book: Babashka manual
- pod-babashka-buddy: A pod around buddy core (Cryptographic Api for Clojure).
- gh-release-artifact: Upload artifacts to Github releases idempotently
- carve - Remove unused Clojure vars
- 4ever-clojure - Pure CLJS version of 4clojure, meant to run forever!
- pod-babashka-lanterna: Interact with clojure-lanterna from babashka
- joyride: VSCode CLJS scripting and REPL (via SCI)
- clj2el: transpile Clojure to elisp
- deflet: make let-expressions REPL-friendly!
- deps.add-lib: Clojure 1.12's add-lib feature for leiningen and/or other environments without a specific version of the clojure CLI
Published: 2025-05-02
Tagged: clojure oss updates