Add license data to NPM package and documenation (#5106)

README.md

@@ -65,8 +65,14 @@ console.log(icon);
     hex: '111111',
     source: 'https://simpleicons.org/',
     svg: '<svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">...</svg>',
-    path: 'M12 12v-1.5c-2.484 ...'
+    path: 'M12 12v-1.5c-2.484 ...',
+    license: {
+        type: '...',
+        url: 'https://example.com/'
+    }
 }
+
+NOTE: the `license` entry will be `undefined` if we do not yet have license data for the icon.
 */
 ```
 
@@ -89,8 +95,14 @@ console.log(icon);
     hex: '111111',
     source: 'https://simpleicons.org/',
     svg: '<svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">...</svg>',
-    path: 'M12 12v-1.5c-2.484 ...'
+    path: 'M12 12v-1.5c-2.484 ...',
+    license: {
+        type: '...',
+        url: 'https://example.com/'
+    }
 }
+
+NOTE: the license may be `undefined` if there is no license data for the icon.
 */
 ```
 

scripts/build-package.js

@@ -39,13 +39,24 @@ function iconToKeyValue(icon) {
 
   return `'${iconName}':${iconToObject(icon)}`;
 }
+function licenseToObject(license) {
+  if (license === undefined) {
+    return;
+  }
+
+  if (license.url === undefined) {
+    license.url = `https://spdx.org/licenses/${license.type}.html`;
+  }
+  return license;
+}
 function iconToObject(icon) {
   return util.format(iconObjectTemplate,
     escape(icon.title),
     escape(icon.slug),
     escape(icon.svg),
     escape(icon.source),
-    escape(icon.hex)
+    escape(icon.hex),
+    licenseToObject(icon.license),
   );
 }
 function minifyAndWrite(filepath, rawJavaScript) {

scripts/templates/icon-object.js

@@ -7,4 +7,5 @@
   },
   source: '%s',
   hex: '%s',
+  license: %s,
 }