Fix log parser with multiple files

scripts/parse-log.ts

@@ -76,13 +76,17 @@ run()
   .then(() => process.exit(0))
   .catch(err => console.error(err))
 
-function run () {
-  return new Promise<void>(async res => {
+async function run () {
   const files = await getFiles()
 
   for (const file of files) {
     if (file === 'peertube-audit.log') continue
 
+    await readFile(file)
+  }
+}
+
+function readFile (file: string) {
   console.log('Opening %s.', file)
 
   const stream = createReadStream(file)
@@ -91,6 +95,7 @@ function run () {
     input: stream
   })
 
+  return new Promise<void>(res => {
     rl.on('line', line => {
       try {
         const log = JSON.parse(line)
@@ -113,7 +118,6 @@ function run () {
     })
 
     stream.once('close', () => res())
-    }
   })
 }