# Changelog

All notable changes to this project are documented here. The format is based on
[Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and this project adheres
to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [Unreleased]

### Added

- Dedicated **browser** build with no `node:*` imports, selected automatically via
  the `browser` condition in `package.json` `exports`. Browser bundlers (Vite,
  webpack, Rollup) now resolve the package without aliasing or stubbing `node:fs`,
  `node:fs/promises`, `node:path`, `node:url`, or `node:crypto`. The Node build is
  unchanged in behavior and selected via the `node` condition.

### Changed

- The loader is split into `loader.ts` (Node: reads glue/`.wasm` from disk) and
  `loader.browser.ts` (browser: `fetch`), over a shared platform-agnostic
  `loader-core.ts`. The browser build aliases `./loader.js` to the browser loader,
  so no Node builtin enters the browser graph.
- SHA-1 (for EVALSHA digests) now uses a dependency-free synchronous implementation
  (`sha1.ts`) instead of `node:crypto`, so the browser build needs no `crypto`
  polyfill. Output is byte-for-byte identical to `crypto.createHash("sha1")`.
- Build outputs renamed: `dist/index.node.{mjs,cjs}` (Node) and
  `dist/index.browser.mjs` (browser). The package entry (`import "lua-redis-wasm"`)
  is unchanged; only internal file names moved.

## [1.3.0] - 2026-06-08

### Added

- `REPLY_SCRIPT_ERROR` (0x06) ABI reply tag, emitted by the `eval` / `eval_with_args`
  abort paths (load and runtime failures). The engine decorates **only** this tag with
  `script: <sha>, on @user_script:<line>.`, so errors that abort a script (a propagated
  `redis.call` error or an uncaught runtime error) are decorated while error values a
  script returns (e.g. `return redis.pcall(...)`) are passed through untouched — matching
  Redis.
- Structured error code on the error reply: the `ReplyValue` error variant is now
  `{ err: Buffer; code?: Buffer }`. The codec splits the leading Redis error code
  (`[A-Z][A-Z0-9]*`) out of the payload on decode and re-joins it on encode, so hosts can
  read `code` directly instead of parsing the message string.

### Changed

- `redis.call()` / `redis.pcall()` with no arguments are now dispatched to the host with
  an empty argument list instead of short-circuiting in C. The host owns the exact error
  message, and the call/pcall distinction is preserved natively.

### Notes

- These changes are additive (`code` is optional) and behavior-only for the zero-arg case,
  but consumers that previously parsed `{ err }` strings to recover an error code should
  read the new `code` field instead.

## [1.2.2] - 2025-01-18

- Baseline published release: WebAssembly Redis Lua 5.1 engine with `redis.call` /
  `redis.pcall` / `redis.log` host integration, `cjson` / `cmsgpack` / `struct` / `bit`
  modules, resource limits, and binary-safe replies.

[1.3.0]: https://github.com/fatal10110/lua-redis-wasm/compare/v1.2.2...v1.3.0
[1.2.2]: https://github.com/fatal10110/lua-redis-wasm/releases/tag/v1.2.2