feat: added dpi preview (#1510)

* feat: added dpi preview

* fix: switched to resvg

* build: updated versions and nitro build config

* fix: switched to resvg-wasm

* fix: trying out fetch with import meta url

* fix: trying out copy wasm file manually

* fix: wrong file path

* fix: trying out esmImport

* fix: oups

* fix: giving up

* fix: await initialization

* fix: still nothing

* Revert "fix: still nothing"

This reverts commit dcb9fe3837a32ec4149f41c9b8925ae0e2fbdb79.

* fix: implement suggestions

Co-authored-by: Eric Fennis <eric.fennis@gmail.com>

* Update .github/workflows/pull-request.yml

* Update .github/workflows/pull-request.yml

* Update .github/workflows/pull-request.yml

* Update .github/workflows/pull-request.yml

* Update .github/workflows/pull-request.yml

* Update .github/workflows/pull-request.yml

* Update .github/workflows/pull-request.yml

* Update .github/workflows/pull-request.yml

* Update .github/workflows/pull-request.yml

---------

Co-authored-by: Eric Fennis <eric.fennis@gmail.com>

.github/workflows/pull-request.yml

@@ -22,6 +22,20 @@ jobs:
         uses: tj-actions/changed-files@v35
         with:
           files: icons/*.svg
+      - name: Generate 24px dpi preview
+        id: generate-24px-dpi-preview
+        run: |
+          delimiter="$(openssl rand -hex 8)"
+          echo "body<<$delimiter" >> $GITHUB_OUTPUT
+          for file in ${{ steps.changed-files.outputs.all_changed_files }}; do
+            cat "$file" | # get file content
+            tr '\n' ' ' | # remove line breaks
+            sed -e 's/<svg[^>]*>/<svg>/g' | # remove attributes from svg element
+            base64 -w 0 | # encode svg
+            sed "s|.*|<img title=\"$file\" alt=\"$file\" src=\"https://lucide.dev/api/gh-icon/dpi/24/&.svg\"/> |"
+          done | tr '\n' ' ' >> $GITHUB_OUTPUT
+          echo >> $GITHUB_OUTPUT
+          echo "$delimiter" >> $GITHUB_OUTPUT
       - name: Generate cohesion check random
         id: generate-cohesion-check-random
         run: |
@@ -134,6 +148,10 @@ jobs:
             ${{ steps.generate-3px-stroke-width.outputs.body }}<br/>
             </details>
             <details>
+            <summary>DPI Preview (24px)</summary>
+            ${{ steps.generate-24px-dpi-preview.outputs.body }}<br/>
+            </details>
+            <details>
             <summary>Icon X-rays</summary>
             ${{ steps.generate-x-rays.outputs.body }}
             </details>

docs/.vitepress/api/gh-icon/dpi/[...data].get.ts

@@ -0,0 +1,73 @@
+import { eventHandler, setResponseHeader, defaultContentType } from 'h3';
+import { Resvg, initWasm } from '@resvg/resvg-wasm';
+import wasm from './loadWasm';
+
+var initializedResvg = initWasm(wasm);
+
+export default eventHandler(async (event) => {
+  const { params = {} } = event.context;
+  await initializedResvg;
+
+  const imageSize = 96;
+  const [iconSizeString, svgData] = params.data.split('/');
+  const iconSize = parseInt(iconSizeString, 10);
+  const data = svgData.slice(0, -4);
+
+  const src = Buffer.from(data, 'base64').toString('utf8');
+  const svg = (src.includes('<svg') ? src : `<svg>${src}</svg>`)
+    .replace(/(\r\n|\n|\r)/gm, '')
+    .replace(
+      /<svg[^>]*/,
+      `<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="${iconSize}"
+  height="${iconSize}"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="#fff"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+`
+    );
+
+  const resvg = new Resvg(svg, { background: '#000' });
+  const pngData = resvg.render();
+  const pngBuffer = Buffer.from(pngData.asPng());
+
+  defaultContentType(event, 'image/svg+xml');
+  setResponseHeader(event, 'Cache-Control', 'public,max-age=31536000');
+
+  return `
+<svg xmlns="http://www.w3.org/2000/svg" width="${imageSize}" height="${imageSize}" viewBox="0 0 ${imageSize} ${imageSize}">
+  <style>
+    @media screen and (prefers-color-scheme: light) {
+      #fallback-background { fill: transparent; }
+    }
+    @media screen and (prefers-color-scheme: dark) {
+      #fallback-background { fill: transparent; }
+      rect { fill: #fff; }
+    }
+  </style>
+  <mask id="mask">
+    <image
+      width="${imageSize}"
+      height="${imageSize}"
+      href="data:image/png;base64,${pngBuffer.toString('base64')}"
+      image-rendering="pixelated"
+    />
+  </mask>
+  <rect
+    id="fallback-background"
+    width="${imageSize}"
+    height="${imageSize}" ry="${imageSize / 24}"
+    fill="#fff"
+  />
+  <rect
+    width="${imageSize}"
+    height="${imageSize}"
+    fill="#000"
+    mask="url(#mask)"
+  />
+</svg>`;
+});

docs/.vitepress/api/gh-icon/dpi/loadWasm.ts

@@ -0,0 +1,15 @@
+import fs from 'fs';
+import module from 'node:module';
+/* WASM_IMPORT */
+
+let wasm;
+
+if (process.env.NODE_ENV === 'development') {
+  const require = module.createRequire(import.meta.url);
+
+  wasm = fs.readFileSync(require.resolve('@resvg/resvg-wasm/index_bg.wasm'));
+} else {
+  wasm = resvg_wasm;
+}
+
+export default wasm;

docs/.vitepress/vue-shim.d.ts

@@ -1,10 +1,18 @@
-declare module "*.vue" {
-  import Vue from "vue";
+declare module '*.vue' {
+  import Vue from 'vue';
   export default Vue;
 }
 
-declare module "*.data.ts" {
+declare module '*.data.ts' {
   const data: any;
 
   export { data };
 }
+
+declare module '*.wasm' {}
+
+declare const resvg_wasm: RequestInfo | URL | Response | BufferSource | WebAssembly.Module;
+
+declare module 'node:module' {
+  function createRequire(filename: string): NodeRequire;
+}

docs/nitro.config.ts

@@ -1,4 +1,5 @@
-import { defineNitroConfig } from "nitropack";
+import copy from 'rollup-plugin-copy';
+import replace from '@rollup/plugin-replace';
 
 export default defineNitroConfig({
   preset: 'vercel-edge',
@@ -6,15 +7,29 @@ export default defineNitroConfig({
   routeRules: {
     '/api/**': { cors: false },
   },
+  rollupConfig: {
+    external: ['@resvg/resvg-wasm/index_bg.wasm', './index_bg.wasm?module'],
+    plugins: [
+      copy({
+        targets: [
+          {
+            src: './node_modules/@resvg/resvg-wasm/index_bg.wasm',
+            dest: './.vercel/output/functions/__nitro.func',
+          },
+        ],
+      }),
+      replace({
+        include: ['./**/*.ts'],
+        '/* WASM_IMPORT */': 'import resvg_wasm from "./index_bg.wasm?module";',
+        delimiters: ['', ''],
+        preventAssignment: false,
+      }),
+    ],
+  },
   esbuild: {
     options: {
-      include: ['**/*.ts', '**/*.tsx', '**/*.js', '**/*.jsx', '**/*.json'],
-      loaders: {
-        '.js': 'js',
-        '.jsx': 'jsx',
-        '.ts': 'ts',
-        '.tsx': 'tsx',
-      }
+      jsxFactory: 'React.createElement',
+      jsxFragment: 'React.Fragment',
     },
   },
-})
+});

docs/package.json

@@ -24,14 +24,17 @@
   "author": "Eric Fennis",
   "license": "ISC",
   "devDependencies": {
-    "h3": "^1.7.1",
-    "nitropack": "2.4.1",
+    "@rollup/plugin-replace": "^5.0.2",
+    "h3": "^1.8.0",
+    "nitropack": "npm:nitropack-edge@latest",
     "node-fetch": "2",
+    "rollup-plugin-copy": "^3.4.0",
     "vitepress": "1.0.0-rc.4"
   },
   "dependencies": {
     "@floating-ui/vue": "^1.0.1",
     "@headlessui/vue": "^1.7.13",
+    "@resvg/resvg-wasm": "^2.4.1",
     "@vueuse/components": "^10.1.0",
     "@vueuse/core": "^10.1.0",
     "element-to-path": "^1.2.1",