setup.c: support multi-checkout repo setup

diff --git a/wrapper.c b/wrapper.c
index 25074d71b6ce72066efc02abda74ddfb10f71d6c..007ec0d8eac529579cc00b14f9baaddb7ac68487 100644 (file)
--- a/wrapper.c
+++ b/wrapper.c
@@ -11,19 +11,20 @@ static void (*try_to_free_routine)(size_t size) = do_nothing;
 
 static int memory_limit_check(size_t size, int gentle)
 {
-       static int limit = -1;
-       if (limit == -1) {
-               const char *env = getenv("GIT_ALLOC_LIMIT");
-               limit = env ? atoi(env) * 1024 : 0;
+       static size_t limit = 0;
+       if (!limit) {
+               limit = git_env_ulong("GIT_ALLOC_LIMIT", 0);
+               if (!limit)
+                       limit = SIZE_MAX;
        }
-       if (limit && size > limit) {
+       if (size > limit) {
                if (gentle) {
-                       error("attempting to allocate %"PRIuMAX" over limit %d",
-                             (intmax_t)size, limit);
+                       error("attempting to allocate %"PRIuMAX" over limit %"PRIuMAX,
+                             (uintmax_t)size, (uintmax_t)limit);
                        return -1;
                } else
-                       die("attempting to allocate %"PRIuMAX" over limit %d",
-                           (intmax_t)size, limit);
+                       die("attempting to allocate %"PRIuMAX" over limit %"PRIuMAX,
+                           (uintmax_t)size, (uintmax_t)limit);
        }
        return 0;
 }
@@ -465,17 +466,29 @@ int xmkstemp_mode(char *template, int mode)
 
 static int warn_if_unremovable(const char *op, const char *file, int rc)
 {
-       if (rc < 0) {
-               int err = errno;
-               if (ENOENT != err) {
-                       warning("unable to %s %s: %s",
-                               op, file, strerror(errno));
-                       errno = err;
-               }
-       }
+       int err;
+       if (!rc || errno == ENOENT)
+               return 0;
+       err = errno;
+       warning("unable to %s %s: %s", op, file, strerror(errno));
+       errno = err;
        return rc;
 }
 
+int unlink_or_msg(const char *file, struct strbuf *err)
+{
+       int rc = unlink(file);
+
+       assert(err);
+
+       if (!rc || errno == ENOENT)
+               return 0;
+
+       strbuf_addf(err, "unable to unlink %s: %s",
+                   file, strerror(errno));
+       return -1;
+}
+
 int unlink_or_warn(const char *file)
 {
        return warn_if_unremovable("unlink", file, unlink(file));