feat: Add /update-custom-icons request, and modify updateIconSets function

src/data/icon-sets.ts

@@ -41,7 +41,7 @@ export function getPrefixes(type: GetPrefixes = 'all'): string[] {
 /**
  * All icon sets
  */
-export const iconSets = Object.create(null) as Record<string, IconSetEntry>;
+export let iconSets = Object.create(null) as Record<string, IconSetEntry>;
 
 /**
  * Loaded icon sets
@@ -60,6 +60,7 @@ export function updateIconSets(): number {
 	const newPrefixes: Set<string> = new Set();
 	const newPrefixesWithInfo: Set<string> = new Set();
 	const newVisiblePrefixes: Set<string> = new Set();
+	const newIconSets = Object.create(null) as Record<string, IconSetEntry>;
 
 	importers.forEach((importer, importerIndex) => {
 		const data = importer.data;
@@ -89,14 +90,18 @@ export function updateIconSets(): number {
 				}
 			}
 
-			// Set data
-			iconSets[prefix] = {
+			// Add data to a new temporary icon set.
+			// If some files have deleted from icons folder, they're not be here, too.
+			newIconSets[prefix] = {
 				importer,
 				item,
 			};
 		});
 	});
 
+	// Set data
+	iconSets = newIconSets;
+
 	// Replace list of icon sets
 	if (loadedIconSets.size) {
 		// Got some icon sets to clean up

src/http/index.ts

@@ -11,7 +11,7 @@ import { createKeywordsResponse } from './responses/keywords.js';
 import { createLastModifiedResponse } from './responses/modified.js';
 import { createAPIv2SearchResponse } from './responses/search.js';
 import { generateSVGResponse } from './responses/svg.js';
-import { generateUpdateResponse } from './responses/update.js';
+import { generateUpdateCustomResponse, generateUpdateResponse } from './responses/update.js';
 import { initVersionResponse, versionResponse } from './responses/version.js';
 import { generateIconsStyleResponse } from './responses/css.js';
 import { handleJSONResponse } from './helpers/send.js';
@@ -63,16 +63,13 @@ export async function startHTTPServer() {
 	}
 
 	// SVG: /prefix/icon.svg, /prefix:name.svg, /prefix-name.svg
-	server.get(
-		'/:prefix(' + iconNameRoutePartialRegEx + ')/:name(' + iconNameRoutePartialRegEx + ').svg',
-		(req, res) => {
-			type Params = PrefixParams & NameParams;
-			const name = req.params as Params;
-			runWhenLoaded(() => {
-				generateSVGResponse(name.prefix, name.name, req.query, res);
-			});
-		}
-	);
+	server.get('/:prefix(' + iconNameRoutePartialRegEx + ')/:name(' + iconNameRoutePartialRegEx + ').svg', (req, res) => {
+		type Params = PrefixParams & NameParams;
+		const name = req.params as Params;
+		runWhenLoaded(() => {
+			generateSVGResponse(name.prefix, name.name, req.query, res);
+		});
+	});
 
 	// SVG: /prefix:name.svg, /prefix-name.svg
 	server.get('/:name(' + iconNameRouteRegEx + ').svg', (req, res) => {
@@ -176,6 +173,14 @@ export async function startHTTPServer() {
 		generateUpdateResponse(req.query, res);
 	});
 
+	// Update custom icon sets only
+	server.get('/update-custom-icons', (req, res) => {
+		generateUpdateCustomResponse(req.query, res);
+	});
+	server.post('/update-custom-icons', (req, res) => {
+		generateUpdateCustomResponse(req.query, res);
+	});
+
 	// Options
 	server.options('/*', (req, res) => {
 		res.send(200);

src/http/responses/update.ts

@@ -62,3 +62,14 @@ export function generateUpdateResponse(query: FastifyRequest['query'], res: Fast
 	// Send same message regardless of status
 	res.send('ok');
 }
+
+/**
+ * Generate custom icons data only
+ */
+export function generateUpdateCustomResponse(query: FastifyRequest['query'], res: FastifyReply) {
+	runWhenLoaded(() => {
+		triggerIconSetsUpdate(1, () => {
+			res.send('ok');
+		});
+	});
+}