Kyle Isom
28afaa2c56
Single-binary Go server that fetches markdown from Gitea (mc org), renders to HTML with goldmark (GFM, chroma syntax highlighting, heading anchors), and serves a navigable read-only documentation site. Features: - Boot fetch with retry, webhook refresh, 15-minute poll fallback - In-memory cache with atomic per-repo swap - chi router with htmx partial responses for SPA-like navigation - HMAC-SHA256 webhook validation - Responsive CSS, TOC generation, priority doc ordering - $PORT env var support for MCP agent port assignment 33 tests across config, cache, render, and server packages. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
72 lines
2.4 KiB
Markdown
72 lines
2.4 KiB
Markdown
# CLAUDE.md
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This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
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## Project Overview
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mcdoc is a public documentation server for the Metacircular platform. It
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fetches markdown files from Gitea repositories, renders them to HTML, and
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serves a navigable read-only site. No authentication required.
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See `ARCHITECTURE.md` for the full specification.
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**Priorities (in order):** correctness, simplicity, readability.
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## Build Commands
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```bash
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make all # vet → lint → test → build
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make mcdoc # build binary with version injection
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make build # compile all packages
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make test # run all tests
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make vet # go vet
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make lint # golangci-lint
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make devserver # build and run locally with srv/mcdoc.toml
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make clean # remove built binaries
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make docker # build container image
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```
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Run a single test:
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```bash
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go test ./internal/server -run TestDocPage
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```
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## Tech Stack
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- **Language:** Go 1.25+, `CGO_ENABLED=0`, statically linked
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- **Module path:** `git.wntrmute.dev/mc/mcdoc`
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- **Config:** TOML via `go-toml/v2`, env overrides via `MCDOC_*`
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- **HTTP:** chi router, htmx for navigation
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- **Rendering:** goldmark (GFM), chroma (syntax highlighting)
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- **Templates:** Go `html/template`, embedded via `//go:embed`
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- **Linting:** golangci-lint v2
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## Architecture
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- Single binary, single container
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- Fetches markdown from Gitea API (mc org, public repos)
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- Renders to HTML at fetch time, caches in memory
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- Refreshes via Gitea push webhooks + 15-minute poll fallback
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- mc-proxy terminates TLS, mcdoc serves plain HTTP
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- No database, no local state beyond config
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## Package Structure
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- `cmd/mcdoc/` — CLI entry point (cobra: server subcommand)
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- `internal/config/` — TOML config loading
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- `internal/gitea/` — Gitea API client
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- `internal/cache/` — In-memory content cache
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- `internal/render/` — goldmark rendering pipeline
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- `internal/server/` — HTTP server, chi routes, htmx handlers
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- `web/` — Templates and static files, embedded via `//go:embed`
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## Critical Rules
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- No authentication — this is a public site
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- Never serve stale-on-error without logging the staleness
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- Webhook secret must be validated (HMAC-SHA256) before processing
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- All user-supplied path segments must be sanitized (no path traversal)
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- Template rendering must use html/template (auto-escaping), never text/template
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- No CGo in production
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- Generated code is never edited by hand
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