Add path.sep check

fisker · fisker · commit b3bba0749424 · 2020-02-17T00:18:26.000+08:00
diff --git a/src/cli/util.js b/src/cli/util.js
@@ -400,7 +400,9 @@ function createIgnorerFromContextOrDie(context) {
 function eachFilename(context, patterns, callback) {
   // workaround for fast-glob on Windows ref:
   // https://github.com/mrmlnc/fast-glob#how-to-write-patterns-on-windows
-  patterns = patterns.map(path => path.replace(/\\/g, "/"));
+  if (path.sep === "\\") {
+    patterns = patterns.map(path => path.replace(/\\/g, "/"));
+  }
 
   // The '!./' globs are due to https://github.com/prettier/prettier/issues/2110
   const ignoreNodeModules = context.argv["with-node-modules"] !== true;
