fix: explicitly clear generated rss folder to prevent file write appending

package.json

@@ -33,6 +33,7 @@
     "react-scripts": "^4.0.2",
     "react-use": "^17.1.1",
     "redux": "^4.0.5",
+    "rimraf": "^3.0.2",
     "sharp": "^0.30.1",
     "uuid": "^8.3.2",
     "xss": "^1.0.9"
@@ -49,6 +50,7 @@
     "@types/react": "^17.0.2",
     "@types/react-redux": "^7.1.9",
     "@types/redux": "^3.6.0",
+    "@types/rimraf": "^3.0.2",
     "autoprefixer": "^10.2.4",
     "contentful-cli": "^1.8.17",
     "cssnano": "^4.1.11",

utils/rss.ts

@@ -3,6 +3,7 @@ import { mkdirSync, writeFileSync } from 'fs';
 import { Feed } from 'feed';
 import { IPost } from '@/types/cms';
 import { METADATA } from '@/constants';
+import rimraf from 'rimraf';
 
 const baseUrl = METADATA.HOST_URL;
 const date = new Date();
@@ -42,6 +43,7 @@ export default function generateRSSFeed(posts: IPost[]) {
     });
   });
 
+  rimraf.sync(`./public/rss`);
   mkdirSync(`./public/rss`, { recursive: true });
   writeFileSync(`./public/rss/feed.xml`, feed.rss2(), {
     encoding: 'utf-8',

yarn.lock

@@ -2018,6 +2018,14 @@
   resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.39.tgz#e177e699ee1b8c22d23174caaa7422644389509f"
   integrity sha512-EYNwp3bU+98cpU4lAWYYL7Zz+2gryWH1qbdDTidVd6hkiR6weksdbMadyXKXNPEkQFhXM+hVO9ZygomHXp+AIw==
 
+"@types/glob@*":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@types/glob/-/glob-7.2.0.tgz#bc1b5bf3aa92f25bd5dd39f35c57361bdce5b2eb"
+  integrity sha512-ZUxbzKl0IfJILTS6t7ip5fQQM/J3TJYubDm3nMbgubNNYS62eXeUpoLUC8/7fJNiFYHTrGPQn7hspDUzIHX3UA==
+  dependencies:
+    "@types/minimatch" "*"
+    "@types/node" "*"
+
 "@types/glob@^7.1.1":
   version "7.1.3"
   resolved "https://registry.yarnpkg.com/@types/glob/-/glob-7.1.3.tgz#e6ba80f36b7daad2c685acd9266382e68985c183"
@@ -2160,6 +2168,14 @@
   dependencies:
     "@types/node" "*"
 
+"@types/rimraf@^3.0.2":
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/@types/rimraf/-/rimraf-3.0.2.tgz#a63d175b331748e5220ad48c901d7bbf1f44eef8"
+  integrity sha512-F3OznnSLAUxFrCEu/L5PY8+ny8DtcFRjx7fZZ9bycvXRi3KPTRS9HOitGZwvPg0juRhXFWIeKX58cnX5YqLohQ==
+  dependencies:
+    "@types/glob" "*"
+    "@types/node" "*"
+
 "@types/source-list-map@*":
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/@types/source-list-map/-/source-list-map-0.1.2.tgz#0078836063ffaf17412349bba364087e0ac02ec9"