Add UnoCSS plugin

packages/knip/fixtures/plugins/unocss/package.json

@@ -0,0 +1,12 @@
+{
+  "name": "@fixtures/unocss",
+  "version": "*",
+  "scripts": {
+    "dev": "unocss \"site/{snippets,templates}/**/*.php\" --watch",
+    "build": "unocss \"site/{snippets,templates}/**/*.php\""
+  },
+  "devDependencies": {
+    "@unocss/cli": "*",
+    "unocss": "*"
+  }
+}

packages/knip/fixtures/plugins/unocss/unocss.config.ts

@@ -0,0 +1,6 @@
+// uno.config.ts
+import { defineConfig } from 'unocss'
+
+export default defineConfig({
+  // ...UnoCSS options
+})

packages/knip/schema.json

@@ -487,6 +487,10 @@
           "title": "unbuild plugin configuration (https://github.com/webpro/knip/blob/main/src/plugins/unbuild/README.md)",
           "$ref": "#/definitions/plugin"
         },
+        "unocss": {
+          "title": "unocss plugin configuration (https://github.com/webpro/knip/blob/main/src/plugins/unocss/README.md)",
+          "$ref": "#/definitions/plugin"
+        },
         "vercel-og": {
           "title": "vercel-og plugin configuration (https://github.com/webpro/knip/blob/main/src/plugins/vercel-og/README.md)",
           "$ref": "#/definitions/plugin"

packages/knip/src/ConfigurationValidator.ts

@@ -77,6 +77,7 @@ export const pluginSchema = z.union([
 ]);
 
 const pluginsSchema = z.object({
+  unocss: pluginSchema,
   astro: pluginSchema,
   angular: pluginSchema,
   ava: pluginSchema,

packages/knip/src/plugins/index.ts

@@ -61,3 +61,4 @@ export { default as wireit } from './wireit/index.js';
 export { default as wrangler } from './wrangler/index.js';
 export { default as yorkie } from './yorkie/index.js';
 export { default as xo } from './xo/index.js';
+export { default as unocss } from './unocss/index.js';

packages/knip/src/plugins/unocss/index.ts

@@ -0,0 +1,33 @@
+import type { EnablerPatterns } from '#p/types/config.js';
+import type { IsPluginEnabled, Plugin, ResolveConfig } from '#p/types/plugins.js';
+import { hasDependency } from '#p/util/plugin.js';
+import type { PluginConfig } from './types.js';
+
+// https://unocss.dev/guide/config-file
+
+const title = 'UnoCSS';
+
+const enablers: EnablerPatterns = ['unocss', /^@unocss\//];
+
+const isEnabled: IsPluginEnabled = ({ dependencies }) => hasDependency(dependencies, enablers);
+
+const config: string[] = ['uno.config.{js,ts,mjs,mts}', 'unocss.config.{js,ts,mjs,mts}'];
+
+const entry: string[] = [];
+
+const production: string[] = [];
+
+const resolveConfig: ResolveConfig<PluginConfig> = async config => {
+  const dependencies = config?.plugins ?? [];
+  return [...dependencies];
+};
+
+export default {
+  title,
+  enablers,
+  isEnabled,
+  config,
+  entry,
+  production,
+  resolveConfig,
+} satisfies Plugin;

packages/knip/src/plugins/unocss/types.ts

@@ -0,0 +1,4 @@
+export type PluginConfig = {
+  plugins?: string[];
+  entryPathsOrPatterns?: string[];
+};

packages/knip/test/plugins/unocss.test.ts

@@ -0,0 +1,23 @@
+import { test } from 'bun:test';
+import assert from 'node:assert/strict';
+import { main } from '../../src/index.js';
+import { resolve } from '../../src/util/path.js';
+import baseArguments from '../helpers/baseArguments.js';
+import baseCounters from '../helpers/baseCounters.js';
+
+const cwd = resolve('fixtures/plugins/unocss');
+
+test('Find dependencies with the unocss plugin', async () => {
+  const { /* issues, */ counters } = await main({
+    ...baseArguments,
+    cwd,
+  });
+
+  // console.log(issues);
+
+  assert.deepEqual(counters, {
+    ...baseCounters,
+    processed: 1,
+    total: 1,
+  });
+});