diff mbox series

[02/10] repository.c: replace hold_locked_index() with repo_hold_locked_index()

Message ID 20190105055153.3256-3-pclouds@gmail.com (mailing list archive)
State New, archived
Headers show
Series Remove the_index, the final part | expand

Commit Message

Duy Nguyen Jan. 5, 2019, 5:51 a.m. UTC 
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       | 10 +++++-----
 wt-status.c       |  2 +-
 11 files changed, 25 insertions(+), 16 deletions(-)

Comments

Martin Ågren Jan. 5, 2019, 2:33 p.m. UTC | #1 
On Sat, 5 Jan 2019 at 07:07, Nguyễn Thái Ngọc Duy <pclouds@gmail.com> wrote:
>
> 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/

> diff --git a/builtin/clone.c b/builtin/clone.c
> index 7c7f98c72c..ddb3230d21 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

I think this should be in patch 10/10.

> diff --git a/cache.h b/cache.h
> index ca36b44ee0..634c9ce325 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
> @@ -833,7 +834,6 @@ 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);

The reason this moves is it gets protected with "#ifndef
NO_THE_INDEX_COMPATIBILITY_MACROS". Ok.

> -int hold_locked_index(struct lock_file *lk, int lock_flags)
> -{
> -       return hold_lock_file_for_update(lk, get_index_file(), lock_flags);
> -}

> +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);
> +}

`get_index_file()` BUGs if `the_repository->index_file` is NULL, but
other than that, this looks like a faithful conversion. Do we want to
keep that check here?


Martin
Duy Nguyen Jan. 7, 2019, 12:55 p.m. UTC | #2 
On Sat, Jan 5, 2019 at 9:34 PM Martin Ågren <martin.agren@gmail.com> wrote:
>
> On Sat, 5 Jan 2019 at 07:07, Nguyễn Thái Ngọc Duy <pclouds@gmail.com> wrote:
> >
> > 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/
>
> > diff --git a/builtin/clone.c b/builtin/clone.c
> > index 7c7f98c72c..ddb3230d21 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
>
> I think this should be in patch 10/10.

Eck. There has been a lot of fixups in this series. I guess I fixed up
the wrong commit.

> > -int hold_locked_index(struct lock_file *lk, int lock_flags)
> > -{
> > -       return hold_lock_file_for_update(lk, get_index_file(), lock_flags);
> > -}
>
> > +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);
> > +}
>
> `get_index_file()` BUGs if `the_repository->index_file` is NULL, but
> other than that, this looks like a faithful conversion. Do we want to
> keep that check here?

Better than segfault :)
diff mbox series

Patch

diff --git a/apply.c b/apply.c
index 01793d6126..08cde3c4bf 100644
--- a/apply.c
+++ b/apply.c
@@ -4712,7 +4712,8 @@  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 7c7f98c72c..ddb3230d21 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 ca36b44ee0..634c9ce325 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
@@ -833,7 +834,6 @@  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 ecf8db0b71..8dba939d8f 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -3643,7 +3643,7 @@  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 48c1797a4a..1030e11051 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -1733,11 +1733,6 @@  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 7b02e1dffa..fd965c127c 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 */
@@ -263,3 +264,10 @@  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 13624038e6..fb0fdb2392 100644
--- a/rerere.c
+++ b/rerere.c
@@ -705,7 +705,7 @@  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 1a92a5d678..668c232b05 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -540,7 +540,7 @@  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);
@@ -1992,8 +1992,8 @@  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);
-	if (read_index(r->index) < 0) {
+	int index_fd = repo_hold_locked_index(r, &index_lock, 0);
+	if (repo_read_index(r) < 0) {
 		rollback_lock_file(&index_lock);
 		return error(_("git %s: failed to read the index"),
 			_(action_name(opts)));
@@ -2978,7 +2978,7 @@  static int do_reset(struct repository *r,
 	struct unpack_trees_options unpack_tree_opts;
 	int ret = 0;
 
-	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)) {
@@ -3096,7 +3096,7 @@  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 0fe3bcd4cd..becf78b04f 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -2375,7 +2375,7 @@  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);