Drop mkdirp

package.json

@@ -146,7 +146,6 @@
     "double-ended-queue": "^2.1.0-0",
     "express": "^4.17.3",
     "helmet": "^3.23.3",
-    "mkdirp": "^0.5.6",
     "mozlog": "^3.0.1",
     "node-fetch": "^2.6.7",
     "redis": "^3.1.1",

server/storage/fs.js

@@ -1,15 +1,16 @@
 const fs = require('fs');
 const path = require('path');
 const promisify = require('util').promisify;
-const mkdirp = require('mkdirp');
 
 const stat = promisify(fs.stat);
 
 class FSStorage {
   constructor(config, log) {
     this.log = log;
     this.dir = config.file_dir;
-    mkdirp.sync(this.dir);
+    fs.mkdirSync(this.dir, {
+      recursive: true
+    });
   }
 
   async length(id) {

test/frontend/runner.js

@@ -1,7 +1,6 @@
 /* eslint-disable no-undef, no-process-exit */
 const fs = require('fs');
 const path = require('path');
-const mkdirp = require('mkdirp');
 const puppeteer = require('puppeteer');
 const webpack = require('webpack');
 const config = require('../../webpack.config');
@@ -44,7 +43,9 @@ const server = app.listen(async function() {
     const coverage = await page.evaluate(() => __coverage__);
     if (coverage) {
       const dir = path.resolve(__dirname, '../../.nyc_output');
-      mkdirp.sync(dir);
+      fs.mkdirSync(dir, {
+        recursive: true
+      });
       fs.writeFileSync(
         path.resolve(dir, 'frontend.json'),
         JSON.stringify(coverage)

test/wdio.common.conf.js

@@ -1,9 +1,11 @@
 const path = require('path');
-const mkdirp = require('mkdirp');
+const fs = require('fs');
 const rimraf = require('rimraf');
 const dir = path.join(__dirname, 'integration', 'downloads');
 
-mkdirp.sync(dir);
+fs.mkdirSync(dir, {
+  recursive: true
+});
 rimraf.sync(`${dir}${path.sep}*`);
 
 exports.config = {