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@zhin.js/runtime

v1.1.12

Published

Static Plugin graph, generation transaction and HMR Root runtime for Zhin.js

Readme

@zhin.js/runtime

Zhin.js Plugin 树的 Root 生命周期权威。它从 configVersion: 2 应用声明创建 Root 直接实例, 从包 manifest 读取 Feature/API 契约,按 owner 组合 schema/config/env,通过 Feature provider 发现 capability,并用 immutable snapshot、CAS generation 与 lease 驱动局部 HMR。

import { EsmModuleRuntime, RootRuntime } from '@zhin.js/runtime';

const runtime = new RootRuntime({
  projectRoot: process.cwd(),
  modules: new EsmModuleRuntime(),
  config: { configVersion: 2, plugins: {} },
  environment: { name: 'development', mode: 'development', platform: 'node' },
});

await runtime.start();

plugins 是实例名到包引用的映射;业务配置放在顶层同名块,停用实例列在 disable_plugins。 Root 自身配置仍放在 plugin。缺少版本标记或 Root 包仍含非空 zhin.plugins 时会拒绝启动, 迁移步骤见 插件实例声明迁移。 自定义 config resolver 通过 application 选项提供同一 v2 应用声明,不从包清单推断实例。

事务边界

  • capability 文件变化只 prepare 对应 Slot。
  • child/schema 变化替换最浅受影响 subtree。
  • 应用声明拓扑事务支持 Root 实例新增、删除和重排;Feature 挂载变更仍由包 manifest 驱动。
  • Root/package ABI、lockfile 和未知 importer 变化升级为 process restart。
  • 外部 Root 配置按实际投影分类:子 Plugin 配置只替换对应 subtree,Host 配置请求 process restart。
  • .env / .env.<environment> 由 EnvironmentLayersPort 重读;Runtime 重新展开配置引用, Host 投影变化时重启进程,否则提交新的 Plugin generation。
  • 候选校验或 handoff 失败不提交 generation;旧 snapshot 保持可用。
  • 最后一个旧 lease 释放后,旧资源才按 children-first 顺序回收。

Runtime 不静态导入 Command、Agent、Page 或 Adapter provider。具体能力由插件 manifest 动态装配。Ajv 用于整树 schema 校验,semver 用于 engine/Feature API admission;它们只 属于显式安装的 Root 控制面,不进入 zhin.js 默认 IM 安装。

zhin.js/runtime 是指向本包的 optional-peer facade。新项目应显式安装本包;这保证 zhin.js 默认 IM 闭包继续满足 10MB 门禁。

pnpm --filter @zhin.js/runtime build
pnpm --filter @zhin.js/runtime test
pnpm --filter @zhin.js/runtime check:size

配置解释的证据边界

PrimaryConfig.compositionMode 由 RootRuntime 实际执行的配置合成分支记录为 document 或 custom;没有标记的旧 authority 视为 unknown。它随原有 PrimaryConfig generation 资源提交、保留和回滚,不记录配置值的历史来源。 createPrimaryConfig() 未指定模式时使用 unknown,不能根据值相等推断模式。 插件的最终 ConfigView 以同一 snapshot 的 config.get(owner) 为准; PrimaryConfig.expanded 使用 Root EnvStore,不能用其中的子段替代 child owner 的环境覆盖。