We have a transaction in rename_ref to managing the ref during the rename.
Use this transaction to manage the changes to the reflog too.
This now means that rename_ref is almost completely agnostic about how refs
storage is implemented and should be easier to migrate if/when we allow a
different store for refs, such as a database.
Signed-off-by: Ronnie Sahlberg <sahlberg@xxxxxxxxxx>
---
refs.c | 62 ++++++++++++++++++++++++++++++++++++++++++--------------------
1 file changed, 42 insertions(+), 20 deletions(-)
diff --git a/refs.c b/refs.c
index bcce8fe..829c89a 100644
--- a/refs.c
+++ b/refs.c
@@ -2633,6 +2633,24 @@ struct ref_update {
const char refname[FLEX_ARRAY];
};
+struct rename_reflog_cb {
+ struct ref_transaction *t;
+ const char *refname;
+};
+
+static int rename_reflog_ent(unsigned char *osha1, unsigned char *nsha1,
+ const char *email, unsigned long timestamp, int tz,
+ const char *message, void *cb_data)
+{
+ struct rename_reflog_cb *cb = cb_data;
+
+ transaction_update_reflog(cb->t, cb->refname, nsha1, osha1,
+ email, timestamp, tz, message, 0,
+ NULL);
+
+ return 0;
+}
+
int rename_ref(const char *oldrefname, const char *newrefname, const char *logmsg)
{
unsigned char sha1[20];
@@ -2664,40 +2682,44 @@ int rename_ref(const char *oldrefname, const char *newrefname, const char *logms
get_loose_refs(&ref_cache), NULL, 0))
return 1;
- if (log && rename(git_path("logs/%s", oldrefname), git_path(TMP_RENAMED_LOG)))
- return error("unable to move logfile logs/%s to "TMP_RENAMED_LOG": %s",
- oldrefname, strerror(errno));
-
if (pack_refs(PACK_REFS_ALL | PACK_REFS_PRUNE))
return error("unable to pack refs");
transaction = transaction_begin();
- if (!transaction ||
- transaction_delete_sha1(transaction, oldrefname, sha1,
+ if (log) {
+ struct rename_reflog_cb cb;
+
+ transaction_update_reflog(transaction, newrefname,
+ null_sha1, null_sha1, NULL,
+ 0, 0, NULL,
+ REFLOG_TRUNCATE,
+ NULL);
+
+ cb.t = transaction;
+ cb.refname = newrefname;
+ for_each_reflog_ent(oldrefname, rename_reflog_ent, &cb);
+
+ transaction_update_reflog(transaction, newrefname,
+ sha1, sha1,
+ git_committer_info(0),
+ 0, 0, logmsg,
+ REFLOG_EMAIL_IS_COMMITTER,
+ &err);
+ }
+
+ if (transaction_delete_sha1(transaction, oldrefname, sha1,
REF_NODEREF | REF_ISPACKONLY,
1, NULL, &err) ||
transaction_update_sha1(transaction, newrefname, sha1,
- NULL, 0, 0, logmsg, &err) ||
+ NULL, 0, 0, NULL, &err) ||
transaction_commit(transaction, &err)) {
transaction_rollback(transaction);
error("rename_ref failed: %s", err.buf);
strbuf_release(&err);
- goto rollbacklog;
+ return 1;
}
transaction_free(transaction);
-
- if (log && rename_tmp_log(newrefname))
- goto rollbacklog;
-
return 0;
-
- rollbacklog:
- if (log &&
- rename(git_path(TMP_RENAMED_LOG), git_path("logs/%s", oldrefname)))
- error("unable to restore logfile %s from "TMP_RENAMED_LOG": %s",
- oldrefname, strerror(errno));
-
- return 1;
}
static int close_ref(struct ref_lock *lock)
--
2.0.0.rc3.506.g3739a35
--
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