jolt/docs/libraries.md

Clojure libraries known to work with Jolt

Libraries confirmed to load and pass their conformance checks on Jolt (see test/integration/deps-conformance-test.janet and the ring-app example).

• config
• Selmer
• medley
• cuerdas
• ring-core — via :deps/root "ring-core", on the ring-app example's spork/http adapter
• ring-codec
• reitit-core — data-driven routing; the reitit.Trie Java class is mirrored in Clojure by jolt-lang/router. Load with JOLT_FEATURES including clj.
• honeysql — full formatter + helpers (select/insert/update/delete/joins/:inline), loaded unmodified from git
• clojure.jdbc — as jolt-lang/db's jdbc.core, reimplemented over janet sqlite3/pq drivers (SQLite + PostgreSQL)
• next.jdbc — a compatibility layer in jolt-lang/db (next.jdbc, next.jdbc.sql, next.jdbc.prepare, next.jdbc.transaction) over jdbc.core, for libraries that target the next.jdbc API
• tools.logging — the real clojure.tools.logging source runs verbatim. jolt provides a native clojure.tools.logging.impl backend (a stderr LoggerFactory — the library's designed extension point, where slf4j/log4j/jul adapters normally plug in) plus the host shims it needs (agent/send-off, clojure.lang.LockingTransaction, a clojure.pprint subset, clojure.string/trim-newline). The level macros, logf/logp, spy, and enabled? all work; output goes to stderr.
• migratus — database migrations; loads unmodified and runs filesystem SQL/EDN migrations against SQLite through the next.jdbc layer above. migrate/rollback round-trip end to end. Caveat: migration ids are 14-digit timestamps, and the janet-lang/sqlite3 driver currently truncates INTEGER columns to 32 bits, so completion tracking needs the one-line upstream fix (sqlite3_column_int64); ids under 2^31 work as is.
• malli — data schema validation, on the malli-app example. m/validate and m/explain work across the vocabulary (predicates, :int/ :string/:keyword, :map incl. nested + optional, :vector, :tuple, :enum, :maybe, :and/:or, :re, bounded int/string). Load with JOLT_FEATURES including clj (malli's .cljc keys class-schemas off the :clj reader-conditional branches).
• markdown-clj — Markdown → HTML, on the markdown-app example. Renders headings, emphasis, inline code, links, lists, tables, strikethrough.
• hiccup — HTML from Clojure data, on the hiccup-app example. Element tags, attribute maps, nested elements, and for comprehensions; its html macro pre-compiles the markup (a good compiler stress test).