CLJS-2721: test-cljs-2580 failing in windows CI

Author: mfikes

src/main/cljs/cljs/module_deps.js

@@ -185,7 +185,7 @@ md.on('end', function () {
         let pkgJson = pkgJsons[i];
         const candidates = /\.js(on)?$/.test(pkgJson.mainEntry)
             ? [pkgJson.mainEntry]
-            : [pkgJson.mainEntry, pkgJson.mainEntry + '.js', pkgJson.mainEntry + '/index.js', pkgJson.mainEntry + '.json'];
+            : [pkgJson.mainEntry, pkgJson.mainEntry + '.js', pkgJson.mainEntry + 'FILE_SEPARATOR' + 'index.js', pkgJson.mainEntry + '.json'];
 
         for (let j = 0; j < candidates.length; j++) {
           const candidate = candidates[j];

src/main/clojure/cljs/closure.clj

@@ -2357,10 +2357,12 @@
    (let [main-entries (str "[" (->> (package-json-entries opts)
                                     (map #(str "'" % "'"))
                                     (string/join ",")) "]")
+         escape-backslashes #(string/replace % "\\" "\\\\")
          code (-> (slurp (io/resource "cljs/module_deps.js"))
-                (string/replace "JS_FILE" (string/replace file "\\" "\\\\"))
+                (string/replace "JS_FILE" (escape-backslashes file))
                 (string/replace "CLJS_TARGET" (str "" (when target (name target))))
-                (string/replace "MAIN_ENTRIES" main-entries))
+                (string/replace "MAIN_ENTRIES" main-entries)
+                (string/replace "FILE_SEPARATOR" (escape-backslashes File/separator)))
          proc (-> (ProcessBuilder. ["node" "--eval" code])
                 .start)
          is   (.getInputStream proc)