[PATCH v2 2/5] preload-index: teach GIT_FORCE_PRELOAD_TEST to take a boolean

[Ben Peart]

Teach GIT_FORCE_PRELOAD_TEST to take a boolean to turn on or off this test
feature instead of simply testing for existance.

Signed-off-by: Ben Peart <ben.pe...@microsoft.com>
---
 preload-index.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/preload-index.c b/preload-index.c
index 71cd2437a3..0a4e2933bb 100644
--- a/preload-index.c
+++ b/preload-index.c
@@ -5,6 +5,7 @@
 #include "pathspec.h"
 #include "dir.h"
 #include "fsmonitor.h"
+#include "config.h"
 
 #ifdef NO_PTHREADS
 static void preload_index(struct index_state *index,
@@ -84,7 +85,7 @@ static void preload_index(struct index_state *index,
                return;
 
        threads = index->cache_nr / THREAD_COST;
-       if ((index->cache_nr > 1) && (threads < 2) && 
getenv("GIT_FORCE_PRELOAD_TEST"))
+       if ((index->cache_nr > 1) && (threads < 2) && 
git_env_bool("GIT_FORCE_PRELOAD_TEST", 0))
                threads = 2;
        if (threads < 2)
                return;
-- 
2.18.0.windows.1