Chore: missing build chnroute

Build/build-chn-cidr.js

@@ -0,0 +1,32 @@
+const { fetchWithRetry } = require('./lib/fetch-retry');
+const { promises: fsPromises } = require('fs');
+const { resolve: pathResolve } = require('path');
+
+(async () => {
+  console.time('Total Time - build-chnroutes-cidr');
+
+  const cidr = (await (await fetchWithRetry('https://raw.githubusercontent.com/misakaio/chnroutes2/master/chnroutes.txt')).text()).split('\n');
+
+  const filteredCidr = cidr.filter(line => {
+    if (line) {
+      return !line.startsWith('#')
+    }
+
+    return false;
+  })
+
+  await fsPromises.writeFile(pathResolve(__dirname, '../List/ip/china_ip.conf'), makeCidrList(filteredCidr), { encoding: 'utf-8' });
+
+  console.timeEnd('Total Time - build-chnroutes-cidr');
+})();
+
+function makeCidrList(cidr) {
+  const date = new Date();
+
+  return `############################
+# Mainland China IPv4 CIDR
+# Data from misaka.io (misakaio @ GitHub)
+# Last Updated: ${date.toISOString()}
+# Routes: ${cidr.length}
+############################\n` + cidr.map(i => `IP-CIDR,${i}`).join('\n') + '\n########### END ############\n';
+};