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feat(web/m7-363): vite plugin injects Go template tokens at build

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This commit is contained in:
Bryan Van Deusen
2026-05-03 17:26:26 -04:00
parent 98caa7ea84
commit 9803657087
2 changed files with 28 additions and 1 deletions
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web/src/app.html
+1
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@@ -25,6 +25,7 @@
href="https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500&family=Inter:wght@400;500&family=JetBrains+Mono:wght@400;500&display=swap" href="https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500&family=Inter:wght@400;500&family=JetBrains+Mono:wght@400;500&display=swap"
/> />
%sveltekit.head% %sveltekit.head%
<!-- MINSTREL_TOKENS -->
</head> </head>
<body class="bg-background text-text-primary"> <body class="bg-background text-text-primary">
<div style="display: contents">%sveltekit.body%</div> <div style="display: contents">%sveltekit.body%</div>
web/vite.config.ts
+27 -1
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@@ -9,8 +9,34 @@ const tokensPlugin = {
} }
}; };
// Build-only plugin that injects Go html/template tokens into the
// rendered index.html so the runtime Go server can substitute per-
// instance branding. In dev (`vite dev`), the marker stays as a
// comment and the SPA falls back to the literal app.html title.
const injectGoTokensPlugin = {
name: 'minstrel-inject-go-tokens',
apply: 'build' as const,
enforce: 'post' as const,
transformIndexHtml(html: string) {
const titleTag = `<title>{{ .AppName }}</title>`;
const headBlock = `
<meta name="description" content="{{ .Description }}">
<meta property="og:title" content="{{ .AppName }}">
<meta property="og:description" content="{{ .Description }}">
<meta property="og:image" content="/brand/og-image.png">
<meta property="og:type" content="website">
<meta name="twitter:card" content="summary_large_image">
<meta name="theme-color" media="(prefers-color-scheme: dark)" content="#14171A">
<meta name="theme-color" media="(prefers-color-scheme: light)" content="#F8F5EE">
<script>window.__MINSTREL__ = { appName: "{{ .AppName }}", description: "{{ .Description }}" };</script>`;
return html
.replace('<title>Minstrel</title>', titleTag)
.replace('<!-- MINSTREL_TOKENS -->', headBlock);
}
};
export default defineConfig({ export default defineConfig({
plugins: [tokensPlugin, sveltekit()], plugins: [tokensPlugin, sveltekit(), injectGoTokensPlugin],
server: { server: {
port: 5173, port: 5173,
proxy: { proxy: {