Implement mcdoc v0.1.0: public documentation server

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>
This commit is contained in:
2026-03-27 13:04:15 -07:00
parent 0578dbcb02
commit 28afaa2c56
31 changed files with 2870 additions and 1 deletions

6
web/embed.go Normal file
View File

@@ -0,0 +1,6 @@
package web
import "embed"
//go:embed templates/*.html static/*
var Content embed.FS

1
web/static/htmx.min.js vendored Normal file

File diff suppressed because one or more lines are too long

343
web/static/style.css Normal file
View File

@@ -0,0 +1,343 @@
/* Metacircular Docs — clean technical document styling */
:root {
--bg: #fafafa;
--fg: #1a1a1a;
--fg-muted: #555;
--border: #ddd;
--link: #1a56db;
--link-hover: #0f3d91;
--code-bg: #f0f0f0;
--code-border: #ddd;
--sidebar-bg: #f5f5f5;
--sidebar-active: #e8e8e8;
--max-width: 72rem;
--content-width: 70ch;
--font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
--font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}
*, *::before, *::after {
box-sizing: border-box;
}
html {
font-size: 16px;
}
body {
margin: 0;
font-family: var(--font-body);
color: var(--fg);
background: var(--bg);
line-height: 1.65;
}
a {
color: var(--link);
text-decoration: none;
}
a:hover {
color: var(--link-hover);
text-decoration: underline;
}
/* Header / Breadcrumbs */
header {
border-bottom: 1px solid var(--border);
padding: 0.75rem 1.5rem;
background: #fff;
}
.breadcrumb {
max-width: var(--max-width);
margin: 0 auto;
font-size: 0.9rem;
}
.breadcrumb .sep {
color: var(--fg-muted);
margin: 0 0.25rem;
}
/* Main layout */
main {
max-width: var(--max-width);
margin: 0 auto;
display: flex;
gap: 2rem;
padding: 1.5rem;
min-height: calc(100vh - 8rem);
}
/* Sidebar */
.sidebar {
flex: 0 0 14rem;
position: sticky;
top: 1.5rem;
align-self: flex-start;
max-height: calc(100vh - 4rem);
overflow-y: auto;
}
.sidebar ul {
list-style: none;
padding: 0;
margin: 0;
}
.sidebar li {
margin: 0;
}
.sidebar li a {
display: block;
padding: 0.35rem 0.75rem;
border-radius: 4px;
font-size: 0.875rem;
color: var(--fg);
}
.sidebar li a:hover {
background: var(--sidebar-bg);
text-decoration: none;
}
.sidebar li.active a {
background: var(--sidebar-active);
font-weight: 600;
}
/* Content */
#content {
flex: 1;
min-width: 0;
max-width: var(--content-width);
}
/* Index page */
.repo-list {
display: grid;
gap: 1rem;
}
.repo-card {
padding: 1rem 1.25rem;
border: 1px solid var(--border);
border-radius: 6px;
background: #fff;
}
.repo-card h2 {
margin: 0 0 0.25rem;
font-size: 1.15rem;
}
.repo-card p {
margin: 0 0 0.5rem;
color: var(--fg-muted);
font-size: 0.9rem;
}
.doc-count {
font-size: 0.8rem;
color: var(--fg-muted);
}
/* Repo page */
.repo-desc {
color: var(--fg-muted);
margin-bottom: 1.5rem;
}
.doc-list {
list-style: none;
padding: 0;
}
.doc-list li {
padding: 0.5rem 0;
border-bottom: 1px solid var(--border);
}
.doc-list li:last-child {
border-bottom: none;
}
/* Table of contents */
.toc {
margin-bottom: 2rem;
padding: 1rem 1.25rem;
background: var(--sidebar-bg);
border-radius: 6px;
font-size: 0.9rem;
}
.toc summary {
cursor: pointer;
font-weight: 600;
margin-bottom: 0.5rem;
}
.toc ul {
list-style: none;
padding: 0;
margin: 0;
}
.toc li {
padding: 0.15rem 0;
}
.toc-h2 { padding-left: 0; }
.toc-h3 { padding-left: 1rem; }
.toc-h4 { padding-left: 2rem; }
.toc-h5 { padding-left: 3rem; }
/* Document content */
.doc-content {
line-height: 1.7;
}
.doc-content h1 { font-size: 1.75rem; margin: 2rem 0 1rem; border-bottom: 1px solid var(--border); padding-bottom: 0.3rem; }
.doc-content h2 { font-size: 1.4rem; margin: 1.75rem 0 0.75rem; border-bottom: 1px solid var(--border); padding-bottom: 0.25rem; }
.doc-content h3 { font-size: 1.15rem; margin: 1.5rem 0 0.5rem; }
.doc-content h4 { font-size: 1rem; margin: 1.25rem 0 0.5rem; }
.doc-content h1:first-child { margin-top: 0; }
.doc-content p {
margin: 0.75rem 0;
}
.doc-content code {
font-family: var(--font-mono);
font-size: 0.875em;
background: var(--code-bg);
padding: 0.15em 0.35em;
border-radius: 3px;
}
.doc-content pre {
background: var(--code-bg);
border: 1px solid var(--code-border);
border-radius: 6px;
padding: 1rem;
overflow-x: auto;
line-height: 1.45;
font-size: 0.875rem;
}
.doc-content pre code {
background: none;
padding: 0;
border-radius: 0;
}
.doc-content table {
border-collapse: collapse;
width: 100%;
margin: 1rem 0;
font-size: 0.9rem;
}
.doc-content th, .doc-content td {
border: 1px solid var(--border);
padding: 0.5rem 0.75rem;
text-align: left;
}
.doc-content th {
background: var(--sidebar-bg);
font-weight: 600;
}
.doc-content blockquote {
margin: 1rem 0;
padding: 0.5rem 1rem;
border-left: 3px solid var(--border);
color: var(--fg-muted);
}
.doc-content ul, .doc-content ol {
padding-left: 1.5rem;
}
.doc-content li {
margin: 0.25rem 0;
}
.doc-content img {
max-width: 100%;
height: auto;
}
.doc-content hr {
border: none;
border-top: 1px solid var(--border);
margin: 2rem 0;
}
/* Task list (GFM) */
.doc-content ul.contains-task-list {
list-style: none;
padding-left: 0;
}
/* Error page */
.error-page {
text-align: center;
padding: 3rem 0;
}
.error-page h1 {
font-size: 3rem;
color: var(--fg-muted);
}
/* Loading page */
.loading {
text-align: center;
padding: 5rem 0;
color: var(--fg-muted);
}
/* Footer */
footer {
border-top: 1px solid var(--border);
padding: 0.75rem 1.5rem;
text-align: center;
font-size: 0.8rem;
color: var(--fg-muted);
}
/* Responsive */
@media (max-width: 768px) {
main {
flex-direction: column;
padding: 1rem;
}
.sidebar {
position: static;
flex: none;
max-height: none;
}
#content {
max-width: 100%;
}
}

17
web/templates/doc.html Normal file
View File

@@ -0,0 +1,17 @@
{{define "content"}}
{{if .TOC}}
<nav class="toc">
<details open>
<summary>Contents</summary>
<ul>
{{range .TOC}}
<li class="toc-h{{.Level}}"><a href="#{{.ID}}">{{.Text}}</a></li>
{{end}}
</ul>
</details>
</nav>
{{end}}
<article class="doc-content">
{{.Content}}
</article>
{{end}}

7
web/templates/error.html Normal file
View File

@@ -0,0 +1,7 @@
{{define "content"}}
<div class="error-page">
<h1>{{.Code}}</h1>
<p>{{.Message}}</p>
<a href="/" hx-get="/" hx-target="#content" hx-push-url="true">Back to index</a>
</div>
{{end}}

14
web/templates/index.html Normal file
View File

@@ -0,0 +1,14 @@
{{define "content"}}
<h1>Metacircular Platform Documentation</h1>
<div class="repo-list">
{{range .Repos}}
<div class="repo-card">
<h2><a href="/{{.Name}}/" hx-get="/{{.Name}}/" hx-target="#content" hx-push-url="true">{{.Name}}</a></h2>
{{if .Description}}<p>{{.Description}}</p>{{end}}
<span class="doc-count">{{len .Docs}} document{{if ne (len .Docs) 1}}s{{end}}</span>
</div>
{{else}}
<p>No repositories found.</p>
{{end}}
</div>
{{end}}

42
web/templates/layout.html Normal file
View File

@@ -0,0 +1,42 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>{{if .Title}}{{.Title}} — {{end}}Metacircular Docs</title>
<link rel="stylesheet" href="/static/style.css">
<script src="/static/htmx.min.js"></script>
</head>
<body>
<header>
<nav class="breadcrumb">
<a href="/" hx-get="/" hx-target="#content" hx-push-url="true">Metacircular Docs</a>
{{range .Breadcrumbs}}
<span class="sep">/</span>
<a href="{{.URL}}" hx-get="{{.URL}}" hx-target="#content" hx-push-url="true">{{.Label}}</a>
{{end}}
</nav>
</header>
<main>
{{if .Sidebar}}
<aside class="sidebar">
<nav>
<ul>
{{range .Sidebar}}
<li{{if .Active}} class="active"{{end}}>
<a href="{{.URL}}" hx-get="{{.URL}}" hx-target="#content" hx-push-url="true">{{.Label}}</a>
</li>
{{end}}
</ul>
</nav>
</aside>
{{end}}
<div id="content">
{{block "content" .}}{{end}}
</div>
</main>
<footer>
{{if .LastUpdated}}<time>Last updated: {{.LastUpdated}}</time>{{end}}
</footer>
</body>
</html>

View File

@@ -0,0 +1,20 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Loading — Metacircular Docs</title>
<link rel="stylesheet" href="/static/style.css">
<meta http-equiv="refresh" content="5">
</head>
<body>
<main>
<div id="content">
<div class="loading">
<h1>Metacircular Docs</h1>
<p>Fetching documentation from Gitea... please wait.</p>
</div>
</div>
</main>
</body>
</html>

11
web/templates/repo.html Normal file
View File

@@ -0,0 +1,11 @@
{{define "content"}}
<h1>{{.RepoName}}</h1>
{{if .RepoDescription}}<p class="repo-desc">{{.RepoDescription}}</p>{{end}}
<ul class="doc-list">
{{range .Docs}}
<li>
<a href="/{{$.RepoName}}/{{.URLPath}}" hx-get="/{{$.RepoName}}/{{.URLPath}}" hx-target="#content" hx-push-url="true">{{.Title}}</a>
</li>
{{end}}
</ul>
{{end}}