Update the ref transaction code to use struct object_id. Remove one
NULL pointer check which was previously inserted around a dereference;
since we now pass a pointer to struct object_id directly through, the
code we're calling handles this for us.
Signed-off-by: brian m. carlson <sand...@crustytoothpaste.net>
---
branch.c | 2 +-
builtin/clone.c | 2 +-
builtin/commit.c | 4 ++--
builtin/fetch.c | 4 ++--
builtin/receive-pack.c | 4 ++--
builtin/replace.c | 2 +-
builtin/tag.c | 2 +-
builtin/update-ref.c | 8 ++++----
fast-import.c | 4 ++--
refs.c | 50 ++++++++++++++++++++++++--------------------------
refs.h | 38 +++++++++++++++++++-------------------
refs/files-backend.c | 12 ++++++------
refs/refs-internal.h | 4 ++--
sequencer.c | 2 +-
walker.c | 2 +-
15 files changed, 69 insertions(+), 71 deletions(-)
diff --git a/branch.c b/branch.c
index 4377ce2fb1..45029ea142 100644
--- a/branch.c
+++ b/branch.c
@@ -305,7 +305,7 @@ void create_branch(const char *name, const char *start_name,
transaction = ref_transaction_begin(&err);
if (!transaction ||
ref_transaction_update(transaction, ref.buf,
- oid.hash, forcing ? NULL : null_sha1,
+ &oid, forcing ? NULL : &null_oid,
0, msg, &err) ||
ref_transaction_commit(transaction, &err))
die("%s", err.buf);
diff --git a/builtin/clone.c b/builtin/clone.c
index 4135621aa3..665a0e2673 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -588,7 +588,7 @@ static void write_remote_refs(const struct ref *local_refs)
for (r = local_refs; r; r = r->next) {
if (!r->peer_ref)
continue;
- if (ref_transaction_create(t, r->peer_ref->name,
r->old_oid.hash,
+ if (ref_transaction_create(t, r->peer_ref->name, &r->old_oid,
0, NULL, &err))
die("%s", err.buf);
}
diff --git a/builtin/commit.c b/builtin/commit.c
index d75b3805ea..f9c9676a3f 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1788,9 +1788,9 @@ int cmd_commit(int argc, const char **argv, const char
*prefix)
transaction = ref_transaction_begin(&err);
if (!transaction ||
- ref_transaction_update(transaction, "HEAD", oid.hash,
+ ref_transaction_update(transaction, "HEAD", &oid,
current_head
- ? current_head->object.oid.hash : null_sha1,
+ ? ¤t_head->object.oid : &null_oid,
0, sb.buf, &err) ||
ref_transaction_commit(transaction, &err)) {
rollback_index_files();
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 225c734924..859be91d6c 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -457,8 +457,8 @@ static int s_update_ref(const char *action,
transaction = ref_transaction_begin(&err);
if (!transaction ||
ref_transaction_update(transaction, ref->name,
- ref->new_oid.hash,
- check_old ? ref->old_oid.hash : NULL,
+ &ref->new_oid,
+ check_old ? &ref->old_oid : NULL,
0, msg, &err))
goto fail;
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index cc48767405..2da3c4cd5c 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -1139,7 +1139,7 @@ static const char *update(struct command *cmd, struct
shallow_info *si)
}
if (ref_transaction_delete(transaction,
namespaced_name,
- old_oid ? old_oid->hash : NULL,
+ old_oid,
0, "push", &err)) {
rp_error("%s", err.buf);
strbuf_release(&err);
@@ -1156,7 +1156,7 @@ static const char *update(struct command *cmd, struct
shallow_info *si)
if (ref_transaction_update(transaction,
namespaced_name,
- new_oid->hash, old_oid->hash,
+ new_oid, old_oid,
0, "push",
&err)) {
rp_error("%s", err.buf);
diff --git a/builtin/replace.c b/builtin/replace.c
index 2854eaa0f3..3099e55307 100644
--- a/builtin/replace.c
+++ b/builtin/replace.c
@@ -175,7 +175,7 @@ static int replace_object_oid(const char *object_ref,
transaction = ref_transaction_begin(&err);
if (!transaction ||
- ref_transaction_update(transaction, ref.buf, repl->hash, prev.hash,
+ ref_transaction_update(transaction, ref.buf, repl, &prev,
0, NULL, &err) ||
ref_transaction_commit(transaction, &err))
die("%s", err.buf);
diff --git a/builtin/tag.c b/builtin/tag.c
index 272f0d3103..43c07ddeb3 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -544,7 +544,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
transaction = ref_transaction_begin(&err);
if (!transaction ||
- ref_transaction_update(transaction, ref.buf, object.hash, prev.hash,
+ ref_transaction_update(transaction, ref.buf, &object, &prev,
create_reflog ? REF_FORCE_CREATE_REFLOG : 0,
reflog_msg.buf, &err) ||
ref_transaction_commit(transaction, &err))
diff --git a/builtin/update-ref.c b/builtin/update-ref.c
index f491cf1a92..cf1552b478 100644
--- a/builtin/update-ref.c
+++ b/builtin/update-ref.c
@@ -200,7 +200,7 @@ static const char *parse_cmd_update(struct ref_transaction
*transaction,
die("update %s: extra input: %s", refname, next);
if (ref_transaction_update(transaction, refname,
- new_oid.hash, have_old ? old_oid.hash : NULL,
+ &new_oid, have_old ? &old_oid : NULL,
update_flags | create_reflog_flag,
msg, &err))
die("%s", err.buf);
@@ -232,7 +232,7 @@ static const char *parse_cmd_create(struct ref_transaction
*transaction,
if (*next != line_termination)
die("create %s: extra input: %s", refname, next);
- if (ref_transaction_create(transaction, refname, new_oid.hash,
+ if (ref_transaction_create(transaction, refname, &new_oid,
update_flags | create_reflog_flag,
msg, &err))
die("%s", err.buf);
@@ -269,7 +269,7 @@ static const char *parse_cmd_delete(struct ref_transaction
*transaction,
die("delete %s: extra input: %s", refname, next);
if (ref_transaction_delete(transaction, refname,
- have_old ? old_oid.hash : NULL,
+ have_old ? &old_oid : NULL,
update_flags, msg, &err))
die("%s", err.buf);
@@ -298,7 +298,7 @@ static const char *parse_cmd_verify(struct ref_transaction
*transaction,
if (*next != line_termination)
die("verify %s: extra input: %s", refname, next);
- if (ref_transaction_verify(transaction, refname, old_oid.hash,
+ if (ref_transaction_verify(transaction, refname, &old_oid,
update_flags, &err))
die("%s", err.buf);
diff --git a/fast-import.c b/fast-import.c
index d5e4cf0bad..32951b0d4a 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -1778,7 +1778,7 @@ static int update_branch(struct branch *b)
}
transaction = ref_transaction_begin(&err);
if (!transaction ||
- ref_transaction_update(transaction, b->name, b->oid.hash,
old_oid.hash,
+ ref_transaction_update(transaction, b->name, &b->oid, &old_oid,
0, msg, &err) ||
ref_transaction_commit(transaction, &err)) {
ref_transaction_free(transaction);
@@ -1820,7 +1820,7 @@ static void dump_tags(void)
strbuf_addf(&ref_name, "refs/tags/%s", t->name);
if (ref_transaction_update(transaction, ref_name.buf,
- t->oid.hash, NULL, 0, msg, &err)) {
+ &t->oid, NULL, 0, msg, &err)) {
failure |= error("%s", err.buf);
goto cleanup;
}
diff --git a/refs.c b/refs.c
index 91c2af78b6..db4988ab3c 100644
--- a/refs.c
+++ b/refs.c
@@ -671,8 +671,7 @@ int refs_delete_ref(struct ref_store *refs, const char *msg,
transaction = ref_store_transaction_begin(refs, &err);
if (!transaction ||
- ref_transaction_delete(transaction, refname,
- old_oid ? old_oid->hash : NULL,
+ ref_transaction_delete(transaction, refname, old_oid,
flags, msg, &err) ||
ref_transaction_commit(transaction, &err)) {
error("%s", err.buf);
@@ -898,8 +897,8 @@ void ref_transaction_free(struct ref_transaction
*transaction)
struct ref_update *ref_transaction_add_update(
struct ref_transaction *transaction,
const char *refname, unsigned int flags,
- const unsigned char *new_sha1,
- const unsigned char *old_sha1,
+ const struct object_id *new_oid,
+ const struct object_id *old_oid,
const char *msg)
{
struct ref_update *update;
@@ -917,23 +916,23 @@ struct ref_update *ref_transaction_add_update(
update->flags = flags;
if (flags & REF_HAVE_NEW)
- hashcpy(update->new_oid.hash, new_sha1);
+ oidcpy(&update->new_oid, new_oid);
if (flags & REF_HAVE_OLD)
- hashcpy(update->old_oid.hash, old_sha1);
+ oidcpy(&update->old_oid, old_oid);
update->msg = xstrdup_or_null(msg);
return update;
}
int ref_transaction_update(struct ref_transaction *transaction,
const char *refname,
- const unsigned char *new_sha1,
- const unsigned char *old_sha1,
+ const struct object_id *new_oid,
+ const struct object_id *old_oid,
unsigned int flags, const char *msg,
struct strbuf *err)
{
assert(err);
- if ((new_sha1 && !is_null_sha1(new_sha1)) ?
+ if ((new_oid && !is_null_oid(new_oid)) ?
check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) :
!refname_is_safe(refname)) {
strbuf_addf(err, "refusing to update ref with bad name '%s'",
@@ -943,48 +942,48 @@ int ref_transaction_update(struct ref_transaction
*transaction,
flags &= REF_TRANSACTION_UPDATE_ALLOWED_FLAGS;
- flags |= (new_sha1 ? REF_HAVE_NEW : 0) | (old_sha1 ? REF_HAVE_OLD : 0);
+ flags |= (new_oid ? REF_HAVE_NEW : 0) | (old_oid ? REF_HAVE_OLD : 0);
ref_transaction_add_update(transaction, refname, flags,
- new_sha1, old_sha1, msg);
+ new_oid, old_oid, msg);
return 0;
}
int ref_transaction_create(struct ref_transaction *transaction,
const char *refname,
- const unsigned char *new_sha1,
+ const struct object_id *new_oid,
unsigned int flags, const char *msg,
struct strbuf *err)
{
- if (!new_sha1 || is_null_sha1(new_sha1))
- die("BUG: create called without valid new_sha1");
- return ref_transaction_update(transaction, refname, new_sha1,
- null_sha1, flags, msg, err);
+ if (!new_oid || is_null_oid(new_oid))
+ die("BUG: create called without valid new_oid");
+ return ref_transaction_update(transaction, refname, new_oid,
+ &null_oid, flags, msg, err);
}
int ref_transaction_delete(struct ref_transaction *transaction,
const char *refname,
- const unsigned char *old_sha1,
+ const struct object_id *old_oid,
unsigned int flags, const char *msg,
struct strbuf *err)
{
- if (old_sha1 && is_null_sha1(old_sha1))
- die("BUG: delete called with old_sha1 set to zeros");
+ if (old_oid && is_null_oid(old_oid))
+ die("BUG: delete called with old_oid set to zeros");
return ref_transaction_update(transaction, refname,
- null_sha1, old_sha1,
+ &null_oid, old_oid,
flags, msg, err);
}
int ref_transaction_verify(struct ref_transaction *transaction,
const char *refname,
- const unsigned char *old_sha1,
+ const struct object_id *old_oid,
unsigned int flags,
struct strbuf *err)
{
- if (!old_sha1)
- die("BUG: verify called with old_sha1 set to NULL");
+ if (!old_oid)
+ die("BUG: verify called with old_oid set to NULL");
return ref_transaction_update(transaction, refname,
- NULL, old_sha1,
+ NULL, old_oid,
flags, NULL, err);
}
@@ -1003,8 +1002,7 @@ int refs_update_ref(struct ref_store *refs, const char
*msg,
} else {
t = ref_store_transaction_begin(refs, &err);
if (!t ||
- ref_transaction_update(t, refname, new_oid ? new_oid->hash
: NULL,
- old_oid ? old_oid->hash : NULL,
+ ref_transaction_update(t, refname, new_oid, old_oid,
flags, msg, &err) ||
ref_transaction_commit(t, &err)) {
ret = 1;
diff --git a/refs.h b/refs.h
index 8932109a11..1fee56d132 100644
--- a/refs.h
+++ b/refs.h
@@ -511,14 +511,14 @@ struct ref_transaction *ref_transaction_begin(struct
strbuf *err);
*/
/*
- * Add a reference update to transaction. new_sha1 is the value that
- * the reference should have after the update, or null_sha1 if it
- * should be deleted. If new_sha1 is NULL, then the reference is not
- * changed at all. old_sha1 is the value that the reference must have
- * before the update, or null_sha1 if it must not have existed
+ * Add a reference update to transaction. new_oid is the value that
+ * the reference should have after the update, or null_oid if it
+ * should be deleted. If new_oid is NULL, then the reference is not
+ * changed at all. old_oid is the value that the reference must have
+ * before the update, or null_oid if it must not have existed
* beforehand. The old value is checked after the lock is taken to
- * prevent races. If the old value doesn't agree with old_sha1, the
- * whole transaction fails. If old_sha1 is NULL, then the previous
+ * prevent races. If the old value doesn't agree with old_oid, the
+ * whole transaction fails. If old_oid is NULL, then the previous
* value is not checked.
*
* See the above comment "Reference transaction updates" for more
@@ -526,15 +526,15 @@ struct ref_transaction *ref_transaction_begin(struct
strbuf *err);
*/
int ref_transaction_update(struct ref_transaction *transaction,
const char *refname,
- const unsigned char *new_sha1,
- const unsigned char *old_sha1,
+ const struct object_id *new_oid,
+ const struct object_id *old_oid,
unsigned int flags, const char *msg,
struct strbuf *err);
/*
- * Add a reference creation to transaction. new_sha1 is the value that
+ * Add a reference creation to transaction. new_oid is the value that
* the reference should have after the update; it must not be
- * null_sha1. It is verified that the reference does not exist
+ * null_oid. It is verified that the reference does not exist
* already.
*
* See the above comment "Reference transaction updates" for more
@@ -542,35 +542,35 @@ int ref_transaction_update(struct ref_transaction
*transaction,
*/
int ref_transaction_create(struct ref_transaction *transaction,
const char *refname,
- const unsigned char *new_sha1,
+ const struct object_id *new_oid,
unsigned int flags, const char *msg,
struct strbuf *err);
/*
- * Add a reference deletion to transaction. If old_sha1 is non-NULL,
+ * Add a reference deletion to transaction. If old_oid is non-NULL,
* then it holds the value that the reference should have had before
- * the update (which must not be null_sha1).
+ * the update (which must not be null_oid).
*
* See the above comment "Reference transaction updates" for more
* information.
*/
int ref_transaction_delete(struct ref_transaction *transaction,
const char *refname,
- const unsigned char *old_sha1,
+ const struct object_id *old_oid,
unsigned int flags, const char *msg,
struct strbuf *err);
/*
- * Verify, within a transaction, that refname has the value old_sha1,
- * or, if old_sha1 is null_sha1, then verify that the reference
- * doesn't exist. old_sha1 must be non-NULL.
+ * Verify, within a transaction, that refname has the value old_oid,
+ * or, if old_oid is null_oid, then verify that the reference
+ * doesn't exist. old_oid must be non-NULL.
*
* See the above comment "Reference transaction updates" for more
* information.
*/
int ref_transaction_verify(struct ref_transaction *transaction,
const char *refname,
- const unsigned char *old_sha1,
+ const struct object_id *old_oid,
unsigned int flags,
struct strbuf *err);
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 9c4766aa57..8ab0a7ae04 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -994,7 +994,7 @@ static void prune_ref(struct files_ref_store *refs, struct
ref_to_prune *r)
transaction = ref_store_transaction_begin(&refs->base, &err);
if (!transaction ||
- ref_transaction_delete(transaction, r->name, r->oid.hash,
+ ref_transaction_delete(transaction, r->name, &r->oid,
REF_ISPRUNING | REF_NODEREF, NULL, &err) ||
ref_transaction_commit(transaction, &err)) {
ref_transaction_free(transaction);
@@ -1079,7 +1079,7 @@ static int files_pack_refs(struct ref_store *ref_store,
unsigned int flags)
* packed-refs transaction:
*/
if (ref_transaction_update(transaction, iter->refname,
- iter->oid->hash, NULL,
+ iter->oid, NULL,
REF_NODEREF, NULL, &err))
die("failure preparing to create packed reference %s:
%s",
iter->refname, err.buf);
@@ -2148,7 +2148,7 @@ static int split_head_update(struct ref_update *update,
new_update = ref_transaction_add_update(
transaction, "HEAD",
update->flags | REF_LOG_ONLY | REF_NODEREF,
- update->new_oid.hash, update->old_oid.hash,
+ &update->new_oid, &update->old_oid,
update->msg);
/*
@@ -2212,7 +2212,7 @@ static int split_symref_update(struct files_ref_store
*refs,
new_update = ref_transaction_add_update(
transaction, referent, new_flags,
- update->new_oid.hash, update->old_oid.hash,
+ &update->new_oid, &update->old_oid,
update->msg);
new_update->parent_update = update;
@@ -2594,7 +2594,7 @@ static int files_transaction_prepare(struct ref_store
*ref_store,
ref_transaction_add_update(
packed_transaction, update->refname,
update->flags & ~REF_HAVE_OLD,
- update->new_oid.hash,
update->old_oid.hash,
+ &update->new_oid, &update->old_oid,
NULL);
}
}
@@ -2847,7 +2847,7 @@ static int files_initial_transaction_commit(struct
ref_store *ref_store,
*/
ref_transaction_add_update(packed_transaction, update->refname,
update->flags & ~REF_HAVE_OLD,
- update->new_oid.hash,
update->old_oid.hash,
+ &update->new_oid, &update->old_oid,
NULL);
}
diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index 448de4bccb..951bd340c8 100644
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -202,8 +202,8 @@ int ref_update_reject_duplicates(struct string_list
*refnames,
struct ref_update *ref_transaction_add_update(
struct ref_transaction *transaction,
const char *refname, unsigned int flags,
- const unsigned char *new_sha1,
- const unsigned char *old_sha1,
+ const struct object_id *new_oid,
+ const struct object_id *old_oid,
const char *msg);
/*
diff --git a/sequencer.c b/sequencer.c
index cc3c0da3a5..d26985a6ed 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -393,7 +393,7 @@ static int fast_forward_to(const struct object_id *to,
const struct object_id *f
transaction = ref_transaction_begin(&err);
if (!transaction ||
ref_transaction_update(transaction, "HEAD",
- to->hash, unborn ? null_sha1 : from->hash,
+ to, unborn ? &null_oid : from,
0, sb.buf, &err) ||
ref_transaction_commit(transaction, &err)) {
ref_transaction_free(transaction);
diff --git a/walker.c b/walker.c
index 2d83254bc0..5d4d3733f7 100644
--- a/walker.c
+++ b/walker.c
@@ -304,7 +304,7 @@ int walker_fetch(struct walker *walker, int targets, char
**target,
strbuf_reset(&refname);
strbuf_addf(&refname, "refs/%s", write_ref[i]);
if (ref_transaction_update(transaction, refname.buf,
- oids[i].hash, NULL, 0,
+ oids + i, NULL, 0,
msg ? msg : "fetch (unknown)",
&err)) {
error("%s", err.buf);
--
2.15.0.rc0.271.g36b669edcc
