We're about to stop storing packed refs in a `ref_cache`. That means
that the only way we have left to optimize `peel_ref()` is by checking
whether the reference being peeled is the one currently being iterated
over (in `current_ref_iter`), and if so, using `ref_iterator_peel()`.
But this can be done generically; it doesn't have to be implemented
per-backend.
So implement `refs_peel_ref()` in `refs.c` and remove the `peel_ref()`
method from the refs API.
This removes the last callers of a couple of functions, so delete
them. More cleanup to come...
Signed-off-by: Michael Haggerty <mhag...@alum.mit.edu>
---
refs.c | 18 +++++++++++++++++-
refs/files-backend.c | 38 --------------------------------------
refs/packed-backend.c | 36 ------------------------------------
refs/refs-internal.h | 3 ---
4 files changed, 17 insertions(+), 78 deletions(-)
diff --git a/refs.c b/refs.c
index 101c107ee8..c5e6f79c77 100644
--- a/refs.c
+++ b/refs.c
@@ -1735,7 +1735,23 @@ int refs_pack_refs(struct ref_store *refs, unsigned int
flags)
int refs_peel_ref(struct ref_store *refs, const char *refname,
unsigned char *sha1)
{
- return refs->be->peel_ref(refs, refname, sha1);
+ int flag;
+ unsigned char base[20];
+
+ if (current_ref_iter && current_ref_iter->refname == refname) {
+ struct object_id peeled;
+
+ if (ref_iterator_peel(current_ref_iter, &peeled))
+ return -1;
+ hashcpy(sha1, peeled.hash);
+ return 0;
+ }
+
+ if (refs_read_ref_full(refs, refname,
+ RESOLVE_REF_READING, base, &flag))
+ return -1;
+
+ return peel_object(base, sha1);
}
int peel_ref(const char *refname, unsigned char *sha1)
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 35648c89fc..7d12de88d0 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -655,43 +655,6 @@ static int lock_raw_ref(struct files_ref_store *refs,
return ret;
}
-static int files_peel_ref(struct ref_store *ref_store,
- const char *refname, unsigned char *sha1)
-{
- struct files_ref_store *refs =
- files_downcast(ref_store, REF_STORE_READ | REF_STORE_ODB,
- "peel_ref");
- int flag;
- unsigned char base[20];
-
- if (current_ref_iter && current_ref_iter->refname == refname) {
- struct object_id peeled;
-
- if (ref_iterator_peel(current_ref_iter, &peeled))
- return -1;
- hashcpy(sha1, peeled.hash);
- return 0;
- }
-
- if (refs_read_ref_full(ref_store, refname,
- RESOLVE_REF_READING, base, &flag))
- return -1;
-
- /*
- * If the reference is packed, read its ref_entry from the
- * cache in the hope that we already know its peeled value.
- * We only try this optimization on packed references because
- * (a) forcing the filling of the loose reference cache could
- * be expensive and (b) loose references anyway usually do not
- * have REF_KNOWS_PEELED.
- */
- if (flag & REF_ISPACKED &&
- !refs_peel_ref(refs->packed_ref_store, refname, sha1))
- return 0;
-
- return peel_object(base, sha1);
-}
-
struct files_ref_iterator {
struct ref_iterator base;
@@ -3012,7 +2975,6 @@ struct ref_storage_be refs_be_files = {
files_initial_transaction_commit,
files_pack_refs,
- files_peel_ref,
files_create_symref,
files_delete_refs,
files_rename_ref,
diff --git a/refs/packed-backend.c b/refs/packed-backend.c
index be614e79f5..dbbba45502 100644
--- a/refs/packed-backend.c
+++ b/refs/packed-backend.c
@@ -850,26 +850,6 @@ static struct packed_ref_cache
*get_packed_ref_cache(struct packed_ref_store *re
return refs->cache;
}
-static struct ref_dir *get_packed_ref_dir(struct packed_ref_cache
*packed_ref_cache)
-{
- return get_ref_dir(packed_ref_cache->cache->root);
-}
-
-static struct ref_dir *get_packed_refs(struct packed_ref_store *refs)
-{
- return get_packed_ref_dir(get_packed_ref_cache(refs));
-}
-
-/*
- * Return the ref_entry for the given refname from the packed
- * references. If it does not exist, return NULL.
- */
-static struct ref_entry *get_packed_ref(struct packed_ref_store *refs,
- const char *refname)
-{
- return find_ref_entry(get_packed_refs(refs), refname);
-}
-
static int packed_read_raw_ref(struct ref_store *ref_store,
const char *refname, unsigned char *sha1,
struct strbuf *referent, unsigned int *type)
@@ -896,21 +876,6 @@ static int packed_read_raw_ref(struct ref_store *ref_store,
return 0;
}
-static int packed_peel_ref(struct ref_store *ref_store,
- const char *refname, unsigned char *sha1)
-{
- struct packed_ref_store *refs =
- packed_downcast(ref_store, REF_STORE_READ | REF_STORE_ODB,
- "peel_ref");
- struct ref_entry *r = get_packed_ref(refs, refname);
-
- if (!r || peel_entry(r, 0))
- return -1;
-
- hashcpy(sha1, r->u.value.peeled.hash);
- return 0;
-}
-
struct packed_ref_iterator {
struct ref_iterator base;
@@ -1597,7 +1562,6 @@ struct ref_storage_be refs_be_packed = {
packed_initial_transaction_commit,
packed_pack_refs,
- packed_peel_ref,
packed_create_symref,
packed_delete_refs,
packed_rename_ref,
diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index d7f233beba..cc6c373f59 100644
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -562,8 +562,6 @@ typedef int ref_transaction_commit_fn(struct ref_store
*refs,
struct strbuf *err);
typedef int pack_refs_fn(struct ref_store *ref_store, unsigned int flags);
-typedef int peel_ref_fn(struct ref_store *ref_store,
- const char *refname, unsigned char *sha1);
typedef int create_symref_fn(struct ref_store *ref_store,
const char *ref_target,
const char *refs_heads_master,
@@ -668,7 +666,6 @@ struct ref_storage_be {
ref_transaction_commit_fn *initial_transaction_commit;
pack_refs_fn *pack_refs;
- peel_ref_fn *peel_ref;
create_symref_fn *create_symref;
delete_refs_fn *delete_refs;
rename_ref_fn *rename_ref;
--
2.14.1
