69 lines
3.7 KiB
Markdown
69 lines
3.7 KiB
Markdown
# Implementation Plan: [FEATURE]
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**Branch**: `[###-feature-name]` | **Date**: [DATE] | **Spec**: [link]
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**Input**: Feature specification from `/specs/[###-feature-name]/spec.md`
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**Note**: This template is filled in by the `/speckit.plan` command. See `.specify/templates/commands/plan.md` for the execution workflow.
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## Summary
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[Extract from feature spec: primary requirement + technical approach from research]
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## Technical Context
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**Language/Version**: Go 1.25+ (静态链接，单二进制交付)
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**Primary Dependencies**: Fiber v3（HTTP 服务）、Viper（配置）、Logrus + Lumberjack（结构化日志 & 滚动）、标准库 `net/http`/`io`
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**Storage**: 本地文件系统缓存目录 `StoragePath/<Hub>/<path>` + `.meta` 元数据
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**Testing**: `go test ./...`，使用 `httptest`、临时目录和自建上游伪服务验证配置/缓存/代理路径
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**Target Platform**: Linux/Unix CLI 进程，由 systemd/supervisor 管理，匿名下游客户端
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**Project Type**: 单 Go 项目（`cmd/` 入口 + `internal/*` 包）
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**Performance Goals**: 缓存命中直接返回；回源路径需流式转发，单请求常驻内存 <256MB；命中/回源日志可追踪
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**Constraints**: 禁止 Web UI 或账号体系；所有行为受单一 TOML 配置控制；每个 Hub 需独立 Domain/Port 绑定；仅匿名访问
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**Scale/Scope**: 支撑 Docker/NPM/Go/PyPI 等多仓代理，面向弱网及离线缓存复用场景
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## Constitution Check
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*GATE: Must pass before Phase 0 research. Re-check after Phase 1 design.*
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- Feature 仍然是“轻量多仓 CLI 代理”，未引入 Web UI、账号体系或与代理无关的能力。
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- 仅使用 Go + 宪法指定依赖；任何新第三方库都已在本计划中说明理由与审核结论。
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- 行为完全由 `config.toml` 控制，新增配置项已规划默认值、校验与迁移策略。
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- 方案维持缓存优先 + 流式回源路径，并给出命中/回源/失败的日志与观测手段。
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- 计划内列出了配置解析、缓存读写、Host Header 路由等强制测试与中文注释交付范围。
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## Project Structure
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### Documentation (this feature)
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```text
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specs/[###-feature]/
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├── plan.md # This file (/speckit.plan command output)
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├── research.md # Phase 0 output (/speckit.plan command)
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├── data-model.md # Phase 1 output (/speckit.plan command)
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├── quickstart.md # Phase 1 output (/speckit.plan command)
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├── contracts/ # Phase 1 output (/speckit.plan command)
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└── tasks.md # Phase 2 output (/speckit.tasks command - NOT created by /speckit.plan)
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```
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### Source Code (repository root)
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```text
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cmd/any-hub/main.go # CLI 入口、参数解析
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internal/config/ # TOML 加载、默认值、校验
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internal/server/ # Fiber 服务、路由、中间件
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internal/cache/ # 磁盘/内存缓存与 .meta 管理
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internal/proxy/ # 上游访问、缓存策略、流式复制
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configs/ # 示例 config.toml（如需）
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tests/ # `go test` 下的单元/集成测试，用临时目录
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```
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**Structure Decision**: 采用单 Go 项目结构，特性代码应放入上述现有目录；如需新增包或目录，必须解释其与 `internal/*` 的关系并给出后续维护策略。
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## Complexity Tracking
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> **Fill ONLY if Constitution Check has violations that must be justified**
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| Violation | Why Needed | Simpler Alternative Rejected Because |
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|-----------|------------|-------------------------------------|
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| [e.g., 4th project] | [current need] | [why 3 projects insufficient] |
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| [e.g., Repository pattern] | [specific problem] | [why direct DB access insufficient] |
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