[docs] Add script to merge MD icon tags with synonyms

docs/scripts/updateIconSynonyms.js

@@ -0,0 +1,70 @@
+/* eslint-disable no-console */
+
+import 'isomorphic-fetch';
+import fse from 'fs-extra';
+import path from 'path';
+import synonyms from 'docs/src/pages/components/material-icons/synonyms';
+import myDestRewriter from '../../packages/material-ui-icons/renameFilters/material-design-icons';
+
+function not(a, b) {
+  return a.filter(value => b.indexOf(value) === -1);
+}
+
+function union(a, b) {
+  return [...new Set([...a, ...b])];
+}
+
+async function run() {
+  try {
+    const response = await fetch('https://fonts.google.com/metadata/icons');
+    const text = await response.text();
+    const data = JSON.parse(text.replace(")]}'", ''));
+
+    const materialIcons = data.icons.reduce((acc, icon) => {
+      // remove the icon name strings from the tags
+      icon.tags = not(icon.tags, icon.name.replace('_'));
+      // Fix the 3 exceptions
+      icon.name = myDestRewriter({ base: `ic_${icon.name}` });
+
+      acc[icon.name] = icon.tags;
+      return acc;
+    }, {});
+
+    // Merge the icon names from both lists
+    const iconList = union(Object.keys(materialIcons), Object.keys(synonyms)).sort(
+      (a, b) => -b.localeCompare(a),
+    );
+
+    let newSynonyms = 'const synonyms = {\n';
+    iconList.forEach(icon => {
+      const synonymsIconStrings = synonyms[icon] ? synonyms[icon].split(' ') : [];
+
+      // Some MD tags have multiple words in a string, so we separate those out to dedupe them
+      const materialIconStrings = materialIcons[icon]
+        ? materialIcons[icon].reduce((tags, tag) => tags.concat(tag.split(' ')), [])
+        : [];
+
+      let mergedStrings = union(synonymsIconStrings, materialIconStrings);
+      mergedStrings = mergedStrings
+        // remove strings that are substrings of others
+        .filter(tag => !mergedStrings.some(one => one.includes(tag) && one !== tag))
+        .sort()
+        .join(' ');
+
+      if (mergedStrings !== '') {
+        newSynonyms += `  ${icon}: '${mergedStrings}',\n`;
+      }
+    });
+    newSynonyms += '};\n\nexport default synonyms;\n';
+
+    fse.writeFile(
+      path.join(__dirname, `../../docs/src/pages/components/material-icons/synonyms.js`),
+      newSynonyms,
+    );
+  } catch (err) {
+    console.log('err', err);
+    throw err;
+  }
+}
+
+run();