[PATCH 09/19] repository.c: replace hold_locked_index() with repo_hold_locked_index()

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

hold_locked_index() assumes the index path at $GIT_DIR/index. This is
not good for places that take an arbitrary index_state instead of
the_index, which is basically everywhere except builtin/.

Replace it with repo_hold_locked_index(). hold_locked_index() remains
as a wrapper around repo_hold_locked_index() to reduce changes in builtin/

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 apply.c           | 3 ++-
 builtin/clone.c   | 1 +
 cache.h           | 2 +-
 merge-recursive.c | 2 +-
 merge.c           | 2 +-
 read-cache.c      | 5 -----
 repository.c      | 8 ++++++++
 repository.h      | 4 ++++
 rerere.c          | 2 +-
 sequencer.c       | 8 ++++----
 wt-status.c       | 2 +-
 11 files changed, 24 insertions(+), 15 deletions(-)

diff --git a/apply.c b/apply.c
index fdae1d423b..122e6ddf92 100644
--- a/apply.c
+++ b/apply.c
@@ -4710,7 +4710,8 @@ static int apply_patch(struct apply_state *state,
 						  state->index_file,
 						  LOCK_DIE_ON_ERROR);
 		else
-			hold_locked_index(&state->lock_file, LOCK_DIE_ON_ERROR);
+			repo_hold_locked_index(state->repo, &state->lock_file,
+					       LOCK_DIE_ON_ERROR);
 	}
 
 	if (state->check_index && read_apply_cache(state) < 0) {
diff --git a/builtin/clone.c b/builtin/clone.c
index 15b142d646..dfefe85770 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -8,6 +8,7 @@
  * Clone a repository into a different directory that does not yet exist.
  */
 
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "builtin.h"
 #include "config.h"
 #include "lockfile.h"
diff --git a/cache.h b/cache.h
index 59c8a93046..ef2483ce45 100644
--- a/cache.h
+++ b/cache.h
@@ -433,6 +433,7 @@ void validate_cache_entries(const struct index_state *istate);
 #define unmerge_cache_entry_at(at) unmerge_index_entry_at(&the_index, at)
 #define unmerge_cache(pathspec) unmerge_index(&the_index, pathspec)
 #define read_blob_data_from_cache(path, sz) read_blob_data_from_index(&the_index, (path), (sz))
+#define hold_locked_index(lock_file, flags) repo_hold_locked_index(the_repository, (lock_file), (flags))
 #endif
 
 #define TYPE_BITS 3
@@ -826,7 +827,6 @@ extern struct cache_entry *refresh_cache_entry(struct index_state *, struct cach
  */
 extern void update_index_if_able(struct index_state *, struct lock_file *);
 
-extern int hold_locked_index(struct lock_file *, int);
 extern void set_alternate_index_output(const char *);
 
 extern int verify_index_checksum;
diff --git a/merge-recursive.c b/merge-recursive.c
index c0fb83d285..c186812ff2 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -3510,7 +3510,7 @@ int merge_recursive_generic(struct merge_options *o,
 		}
 	}
 
-	hold_locked_index(&lock, LOCK_DIE_ON_ERROR);
+	repo_hold_locked_index(the_repository, &lock, LOCK_DIE_ON_ERROR);
 	clean = merge_recursive(o, head_commit, next_commit, ca,
 				result);
 	if (clean < 0) {
diff --git a/merge.c b/merge.c
index 91008f7602..dbbc9d9f80 100644
--- a/merge.c
+++ b/merge.c
@@ -58,7 +58,7 @@ int checkout_fast_forward(struct repository *r,
 
 	refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL);
 
-	if (hold_locked_index(&lock_file, LOCK_REPORT_ON_ERROR) < 0)
+	if (repo_hold_locked_index(r, &lock_file, LOCK_REPORT_ON_ERROR) < 0)
 		return -1;
 
 	memset(&trees, 0, sizeof(trees));
diff --git a/read-cache.c b/read-cache.c
index 1df5c16dbc..7ad3330942 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -1726,11 +1726,6 @@ static int read_index_extension(struct index_state *istate,
 	return 0;
 }
 
-int hold_locked_index(struct lock_file *lk, int lock_flags)
-{
-	return hold_lock_file_for_update(lk, get_index_file(), lock_flags);
-}
-
 int read_index(struct index_state *istate)
 {
 	return read_index_from(istate, get_index_file(), get_git_dir());
diff --git a/repository.c b/repository.c
index 5dd1486718..39b5a80d43 100644
--- a/repository.c
+++ b/repository.c
@@ -3,6 +3,7 @@
 #include "object-store.h"
 #include "config.h"
 #include "object.h"
+#include "lockfile.h"
 #include "submodule-config.h"
 
 /* The main repository */
@@ -257,3 +258,10 @@ int repo_read_index(struct repository *repo)
 
 	return read_index_from(repo->index, repo->index_file, repo->gitdir);
 }
+
+int repo_hold_locked_index(struct repository *repo,
+			   struct lock_file *lf,
+			   int flags)
+{
+	return hold_lock_file_for_update(lf, repo->index_file, flags);
+}
diff --git a/repository.h b/repository.h
index 9f16c42c1e..968330218f 100644
--- a/repository.h
+++ b/repository.h
@@ -6,6 +6,7 @@
 struct config_set;
 struct git_hash_algo;
 struct index_state;
+struct lock_file;
 struct raw_object_store;
 struct submodule_cache;
 
@@ -130,5 +131,8 @@ void repo_clear(struct repository *repo);
  * populated then the number of entries will simply be returned.
  */
 int repo_read_index(struct repository *repo);
+int repo_hold_locked_index(struct repository *repo,
+			   struct lock_file *lf,
+			   int flags);
 
 #endif /* REPOSITORY_H */
diff --git a/rerere.c b/rerere.c
index 887e26d45b..13927de7e0 100644
--- a/rerere.c
+++ b/rerere.c
@@ -702,7 +702,7 @@ static void update_paths(struct repository *r, struct string_list *update)
 	struct lock_file index_lock = LOCK_INIT;
 	int i;
 
-	hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR);
+	repo_hold_locked_index(r, &index_lock, LOCK_DIE_ON_ERROR);
 
 	for (i = 0; i < update->nr; i++) {
 		struct string_list_item *item = &update->items[i];
diff --git a/sequencer.c b/sequencer.c
index 2c2ea2b45d..ced05cd73d 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -535,7 +535,7 @@ static int do_recursive_merge(struct repository *r,
 	char **xopt;
 	struct lock_file index_lock = LOCK_INIT;
 
-	if (hold_locked_index(&index_lock, LOCK_REPORT_ON_ERROR) < 0)
+	if (repo_hold_locked_index(r, &index_lock, LOCK_REPORT_ON_ERROR) < 0)
 		return -1;
 
 	read_index(r->index);
@@ -1935,7 +1935,7 @@ static int read_and_refresh_cache(struct repository *r,
 				  struct replay_opts *opts)
 {
 	struct lock_file index_lock = LOCK_INIT;
-	int index_fd = hold_locked_index(&index_lock, 0);
+	int index_fd = repo_hold_locked_index(r, &index_lock, 0);
 	if (read_index_preload(r->index, NULL, 0) < 0) {
 		rollback_lock_file(&index_lock);
 		return error(_("git %s: failed to read the index"),
@@ -2866,7 +2866,7 @@ static int do_reset(struct repository *r,
 	struct unpack_trees_options unpack_tree_opts;
 	int ret = 0, i;
 
-	if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0)
+	if (repo_hold_locked_index(r, &lock, LOCK_REPORT_ON_ERROR) < 0)
 		return -1;
 
 	if (len == 10 && !strncmp("[new root]", name, len)) {
@@ -2981,7 +2981,7 @@ static int do_merge(struct repository *r,
 	static struct lock_file lock;
 	const char *p;
 
-	if (hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) {
+	if (repo_hold_locked_index(r, &lock, LOCK_REPORT_ON_ERROR) < 0) {
 		ret = -1;
 		goto leave_merge;
 	}
diff --git a/wt-status.c b/wt-status.c
index 3632276236..da28921772 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -2371,7 +2371,7 @@ int require_clean_work_tree(struct repository *r,
 	struct lock_file lock_file = LOCK_INIT;
 	int err = 0, fd;
 
-	fd = hold_locked_index(&lock_file, 0);
+	fd = repo_hold_locked_index(r, &lock_file, 0);
 	refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL);
 	if (0 <= fd)
 		update_index_if_able(r->index, &lock_file);
-- 
2.19.1.647.g708186aaf9