Refactor @comet/admin-icons generator to accept a broader variation…

… of SVGs (#1732)

COM-366  
Change the icon generator to accept icons with more than one path, as
well as circles etc. and more complex structures like:
```
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="none" viewBox="0 0 16 16">
  <g clip-path="url(#a)">
    <path fill="#242424" fill-rule="evenodd" d="M7.529.401a.5.5 0 0 1 .275.082l.076.06 3.647 3.574a.5.5 0 0 1-.63.772l-.07-.058-3.501-3.43-5.99.015.003 5.968 7.474 7.475 5.994-5.994-1.578-1.681a.5.5 0 0 1-.038-.64l.06-.067a.5.5 0 0 1 .64-.038l.067.06 1.91 2.034a.5.5 0 0 1 .046.628l-.056.068-6.69 6.69a.5.5 0 0 1-.639.058l-.069-.057L.486 7.945a.5.5 0 0 1-.14-.274l-.007-.08L.335.918a.5.5 0 0 1 .41-.492l.09-.008L7.528.4ZM5 4a1 1 0 1 1 0 2 1 1 0 0 1 0-2Z" clip-rule="evenodd"/>
  </g>
  <defs>
    <clipPath id="a">
      <path fill="#fff" d="M0 0h16v16H0z"/>
    </clipPath>
  </defs>
</svg>
```
The new icons have the same structure as the input svg files but without
the `fill` prop. All other props are kept.
I tested resizing and coloring, both work.

---------

Co-authored-by: Phillip Lechenauer <phillip.lechenauer@vivid-planet.com>

packages/admin/admin-icons/generate-icons.ts

@@ -1,6 +1,6 @@
 import { Presets, SingleBar } from "cli-progress";
 import { ESLint } from "eslint";
-import { XMLParser } from "fast-xml-parser";
+import { XMLBuilder, XMLParser } from "fast-xml-parser";
 import { existsSync, mkdirSync, readdirSync, readFileSync, rmSync, writeFileSync } from "fs";
 import { pascalCase, pascalCaseTransformMerge } from "pascal-case";
 import * as path from "path";
@@ -48,9 +48,12 @@ const main = async () => {
             bar.increment(1, {
                 title: `Generate icons ${icon.name}`,
             });
-            const pathData = getPathData(icon);
+            const svgData = getSVGData(icon);
 
-            return writeComponent(icon, pathData);
+            const builder = new XMLBuilder({ ignoreAttributes: false });
+            const svgString = builder.build(svgData);
+
+            return writeComponent(icon, svgString);
         }),
     );
     bar.stop();
@@ -60,15 +63,17 @@ const main = async () => {
 
 const getComponentName = (fileName: string) => pascalCase(fileName.split(".")[0], { transform: pascalCaseTransformMerge });
 
-const getPathData = (icon: Icon) => {
+const getSVGData = (icon: Icon) => {
     const fileContents = readFileSync(icon.path);
-    const parsedXml = new XMLParser({ ignoreAttributes: false, attributeNamePrefix: "" }).parse(fileContents.toString());
-
-    if (parsedXml?.svg?.path?.d === undefined) {
-        throw new Error(`The file ${icon.name} must contain a <path> element with a d attribute`);
-    }
+    const parsedXml = new XMLParser({
+        ignoreAttributes: false,
+        updateTag(_, __, attrs) {
+            delete attrs["@_fill"];
+            return true;
+        },
+    }).parse(fileContents.toString());
 
-    return parsedXml.svg.path.d;
+    return parsedXml.svg;
 };
 
 const getFormattedText = async (text: string) => {
@@ -81,7 +86,7 @@ const getFormattedText = async (text: string) => {
     return results[0].output;
 };
 
-const writeComponent = async (icon: Icon, pathData: string) => {
+const writeComponent = async (icon: Icon, svgString: string) => {
     const component = await getFormattedText(`
         import { SvgIcon, SvgIconProps } from "@mui/material";
         import * as React from "react";
@@ -96,7 +101,7 @@ const writeComponent = async (icon: Icon, pathData: string) => {
         export const ${icon.componentName} = React.forwardRef<SVGSVGElement, SvgIconProps>((props, ref) => {
             return (
                 <SvgIcon {...props} ref={ref} viewBox="0 0 16 16">
-                    <path d="${pathData}" />
+                    ${svgString}
                 </SvgIcon>
             );
         });