From fb3d962cfd8eff3d560967c507d881accdfcee71 Mon Sep 17 00:00:00 2001
From: Dmitry Gorelenkov <dmitry.gorelenkov@gmx.net>
Date: Sun, 15 Mar 2020 21:09:11 +0100
Subject: [PATCH] fix(logger): close opened fd in '.setWrite()'

windows does not really unlink file, if fd is opened.
(see https://stackoverflow.com/a/20801823/2519073)
the unit tests failing because of this
---
 lib/logger.ts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/logger.ts b/lib/logger.ts
index 12f007b1e..5a2da8289 100644
--- a/lib/logger.ts
+++ b/lib/logger.ts
@@ -68,6 +68,14 @@ export class Logger {
     if (opt_logFile) {
       logFile = opt_logFile;
     }
+
+    // if fd already opened, close it
+    // need it for windows, https://stackoverflow.com/a/20801823/2519073
+    if (typeof Logger.fd === 'number') {
+      fs.closeSync(Logger.fd);
+      Logger.fd = void 0;
+    }
+
     Logger.writeTo = writeTo;
     if (Logger.writeTo == WriteTo.FILE || Logger.writeTo == WriteTo.BOTH) {
       Logger.fd = fs.openSync(path.resolve(logFile), 'a');