Merge pull request git-for-windows#1911 from benpeart/git_test_fscache-gfw

fscache: add GIT_TEST_FSCACHE support

Author: dscho

compat/win32/fscache.c

@@ -2,6 +2,7 @@
 #include "../../hashmap.h"
 #include "../win32.h"
 #include "fscache.h"
+#include "config.h"
 
 static int initialized;
 static volatile long enabled;
@@ -406,7 +407,11 @@ int fscache_enable(int enable)
 	int result;
 
 	if (!initialized) {
+		int fscache = git_env_bool("GIT_TEST_FSCACHE", -1);
+
 		/* allow the cache to be disabled entirely */
+		if (fscache != -1)
+			core_fscache = fscache;
 		if (!core_fscache)
 			return 0;
 

t/README

@@ -392,6 +392,9 @@ GIT_TEST_SIDEBAND_ALL=<boolean>, when true, overrides the
 fetch-pack to not request sideband-all (even if the server advertises
 sideband-all).
 
+GIT_TEST_FSCACHE=<boolean> exercises the uncommon fscache code path
+which adds a cache below mingw's lstat and dirent implementations.
+
 Naming Tests
 ------------