feat: improve cross-uni app workflow

packages/angular-builder/src/scripts/minify-icon-font.mjs

@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2022 StApps
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/* eslint-disable @typescript-eslint/no-non-null-assertion */
+import {exec} from 'child_process';
+import config from '../icons.config.mjs';
+import {statSync} from 'fs';
+import {getUsedIconsHtml, getUsedIconsTS} from './gather-used-icons.mjs';
+import {getCodePoints} from './get-code-points.mjs';
+
+/**
+ * @param {string[] | string} command
+ * @returns {Promise<string>}
+ */
+async function run(command) {
+  const fullCommand = Array.isArray(command) ? command.join(' ') : command;
+  console.log(`>> ${fullCommand}`);
+
+  return new Promise((resolve, reject) => {
+    exec(fullCommand, (error, stdout, stderr) => {
+      if (error) {
+        reject(error);
+      } else if (stderr) {
+        reject(stderr);
+      } else {
+        resolve(stdout.trim());
+      }
+    });
+  });
+}
+
+/**
+ *
+ */
+async function minifyIconFont() {
+  /** @type {Set<string>} */
+  const icons = new Set();
+
+  for (const iconSet of [
+    ...Object.values(config.additionalIcons || []),
+    ...Object.values(await getUsedIconsTS(config.scriptGlob)),
+    ...Object.values(await getUsedIconsHtml(config.htmlGlob)),
+  ]) {
+    for (const icon of iconSet) {
+      icons.add(icon);
+    }
+  }
+
+  const glyphs = ['5f-7a', '30-39', ...(await getCodePoints([...icons]))].sort();
+
+  console.log(
+    await run([
+      'pyftsubset',
+      `"${config.inputPath}"`,
+      `--unicodes=${glyphs.join(',')}`,
+      '--no-layout-closure',
+      `--output-file="${config.outputPath}"`,
+      '--flavor=woff2',
+    ]),
+  );
+
+  console.log(`${glyphs.length} Used Icons Total`);
+  console.log(`Minified font saved to ${config.outputPath}`);
+  const result = statSync(config.outputPath).size;
+  const before = statSync(config.inputPath).size;
+
+  console.log(
+    `${toByteUnit(before)} > ${toByteUnit(result)} (${(((before - result) / before) * 100).toFixed(
+      2,
+    )}% Reduction)`,
+  );
+}
+
+// eslint-disable-next-line unicorn/prefer-top-level-await
+minifyIconFont();
+
+/**
+ * Bytes to respective units
+ * @param {number} value
+ * @returns {string}
+ */
+function toByteUnit(value) {
+  if (value < 1024) {
+    return `${value}B`;
+  } else if (value < 1024 * 1024) {
+    return `${(value / 1024).toFixed(2)}KB`;
+  } else {
+    return `${(value / 1024 / 1024).toFixed(2)}MB`;
+  }
+}