[PATCH 13/16] repack, prune: drop GIT_REF_PARANOIA settings

[Jeff King <peff@peff.net>]

Now that GIT_REF_PARANOIA is the default, we don't need to selectively
enable it for destructive operations. In fact, it's harmful to do so,
because it overrides any GIT_REF_PARANOIA=0 setting that the user may
have provided (because they're trying to work around some corruption).

With these uses gone, we can further clean up the ref_paranoia global,
and make it a static variable inside the refs code.

Signed-off-by: Jeff King <peff@peff.net>
---
 builtin/prune.c  | 1 -
 builtin/repack.c | 3 ---
 cache.h          | 8 --------
 environment.c    | 1 -
 refs.c           | 2 ++
 5 files changed, 2 insertions(+), 13 deletions(-)

diff --git a/builtin/prune.c b/builtin/prune.c
index 02c6ab7cba..485c9a3c56 100644
--- a/builtin/prune.c
+++ b/builtin/prune.c
@@ -143,7 +143,6 @@ int cmd_prune(int argc, const char **argv, const char *prefix)
 	expire = TIME_MAX;
 	save_commit_buffer = 0;
 	read_replace_refs = 0;
-	ref_paranoia = 1;
 	repo_init_revisions(the_repository, &revs, prefix);
 
 	argc = parse_options(argc, argv, prefix, options, prune_usage, 0);
diff --git a/builtin/repack.c b/builtin/repack.c
index c1a209013b..cb9f4bfed3 100644
--- a/builtin/repack.c
+++ b/builtin/repack.c
@@ -586,15 +586,12 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
 				strvec_pushf(&cmd.args,
 					     "--unpack-unreachable=%s",
 					     unpack_unreachable);
-				strvec_push(&cmd.env_array, "GIT_REF_PARANOIA=1");
 			} else if (pack_everything & LOOSEN_UNREACHABLE) {
 				strvec_push(&cmd.args,
 					    "--unpack-unreachable");
 			} else if (keep_unreachable) {
 				strvec_push(&cmd.args, "--keep-unreachable");
 				strvec_push(&cmd.args, "--pack-loose-unreachable");
-			} else {
-				strvec_push(&cmd.env_array, "GIT_REF_PARANOIA=1");
 			}
 		}
 	} else if (geometry) {
diff --git a/cache.h b/cache.h
index f6295f3b04..f445008895 100644
--- a/cache.h
+++ b/cache.h
@@ -994,14 +994,6 @@ extern const char *core_fsmonitor;
 extern int core_apply_sparse_checkout;
 extern int core_sparse_checkout_cone;
 
-/*
- * Include broken refs in all ref iterations, which will
- * generally choke dangerous operations rather than letting
- * them silently proceed without taking the broken ref into
- * account.
- */
-extern int ref_paranoia;
-
 /*
  * Returns the boolean value of $GIT_OPTIONAL_LOCKS (or the default value).
  */
diff --git a/environment.c b/environment.c
index b4ba4fa22d..7923ab21dd 100644
--- a/environment.c
+++ b/environment.c
@@ -31,7 +31,6 @@ int prefer_symlink_refs;
 int is_bare_repository_cfg = -1; /* unspecified */
 int warn_ambiguous_refs = 1;
 int warn_on_object_refname_ambiguity = 1;
-int ref_paranoia = -1;
 int repository_format_precious_objects;
 int repository_format_worktree_config;
 const char *git_commit_encoding;
diff --git a/refs.c b/refs.c
index ac19c689fa..d0f4e8726b 100644
--- a/refs.c
+++ b/refs.c
@@ -1419,6 +1419,8 @@ struct ref_iterator *refs_ref_iterator_begin(
 	struct ref_iterator *iter;
 
 	if (!(flags & DO_FOR_EACH_INCLUDE_BROKEN)) {
+		static int ref_paranoia = -1;
+
 		if (ref_paranoia < 0)
 			ref_paranoia = git_env_bool("GIT_REF_PARANOIA", 1);
 		if (ref_paranoia) {
-- 
2.33.0.1071.gb37e412355