Add a flag to allow forcing the creation of a reflog even if the ref
name and core.logAllRefUpdates setting would not ordinarily cause ref
creation.
In a moment, we will use this to add options to git tag and git
update-ref to force reflog creation.
Signed-off-by: David Turner <dtur...@twopensource.com>
---
refs.c | 34 +++++++++++++++++++++-------------
refs.h | 1 +
2 files changed, 22 insertions(+), 13 deletions(-)
diff --git a/refs.c b/refs.c
index 3277768..bdeae8b 100644
--- a/refs.c
+++ b/refs.c
@@ -63,6 +63,11 @@ static unsigned char refname_disposition[256] = {
#define REF_NEEDS_COMMIT 0x20
/*
+ * 0x40 is REF_FORCE_CREATE_REFLOG, so skip it if you're adding a
+ * value to ref_update::flags
+ */
+
+/*
* Try to read one refname component from the front of refname.
* Return the length of the component found, or -1 if the component is
* not legal. It is legal if it is something reasonable to have under
@@ -2979,7 +2984,7 @@ static int write_ref_to_lockfile(struct ref_lock *lock,
const unsigned char *sha1, struct strbuf *err);
static int commit_ref_update(struct ref_lock *lock,
const unsigned char *sha1, const char *logmsg,
- struct strbuf *err);
+ int flags, struct strbuf *err);
int rename_ref(const char *oldrefname, const char *newrefname, const char
*logmsg)
{
@@ -3041,7 +3046,7 @@ int rename_ref(const char *oldrefname, const char
*newrefname, const char *logms
hashcpy(lock->old_oid.hash, orig_sha1);
if (write_ref_to_lockfile(lock, orig_sha1, &err) ||
- commit_ref_update(lock, orig_sha1, logmsg, &err)) {
+ commit_ref_update(lock, orig_sha1, logmsg, 0, &err)) {
error("unable to write current sha1 into %s: %s", newrefname,
err.buf);
strbuf_release(&err);
goto rollback;
@@ -3060,7 +3065,7 @@ int rename_ref(const char *oldrefname, const char
*newrefname, const char *logms
flag = log_all_ref_updates;
log_all_ref_updates = 0;
if (write_ref_to_lockfile(lock, orig_sha1, &err) ||
- commit_ref_update(lock, orig_sha1, NULL, &err)) {
+ commit_ref_update(lock, orig_sha1, NULL, 0, &err)) {
error("unable to write current sha1 into %s: %s", oldrefname,
err.buf);
strbuf_release(&err);
}
@@ -3217,7 +3222,8 @@ static int log_ref_write_fd(int fd, const unsigned char
*old_sha1,
static int log_ref_write_1(const char *refname, const unsigned char *old_sha1,
const unsigned char *new_sha1, const char *msg,
- struct strbuf *sb_log_file, struct strbuf *err)
+ struct strbuf *sb_log_file, int flags,
+ struct strbuf *err)
{
int logfd, result, oflags = O_APPEND | O_WRONLY;
char *log_file;
@@ -3225,7 +3231,7 @@ static int log_ref_write_1(const char *refname, const
unsigned char *old_sha1,
if (log_all_ref_updates < 0)
log_all_ref_updates = !is_bare_repository();
- result = log_ref_setup(refname, sb_log_file, err, 0);
+ result = log_ref_setup(refname, sb_log_file, err, flags &
REF_FORCE_CREATE_REFLOG);
if (result)
return result;
@@ -3254,10 +3260,11 @@ static int log_ref_write_1(const char *refname, const
unsigned char *old_sha1,
static int log_ref_write(const char *refname, const unsigned char *old_sha1,
const unsigned char *new_sha1, const char *msg,
- struct strbuf *err)
+ int flags, struct strbuf *err)
{
struct strbuf sb = STRBUF_INIT;
- int ret = log_ref_write_1(refname, old_sha1, new_sha1, msg, &sb, err);
+ int ret = log_ref_write_1(refname, old_sha1, new_sha1, msg, &sb, flags,
+ err);
strbuf_release(&sb);
return ret;
}
@@ -3311,12 +3318,12 @@ static int write_ref_to_lockfile(struct ref_lock *lock,
*/
static int commit_ref_update(struct ref_lock *lock,
const unsigned char *sha1, const char *logmsg,
- struct strbuf *err)
+ int flags, struct strbuf *err)
{
clear_loose_ref_cache(&ref_cache);
- if (log_ref_write(lock->ref_name, lock->old_oid.hash, sha1, logmsg,
err) < 0 ||
+ if (log_ref_write(lock->ref_name, lock->old_oid.hash, sha1, logmsg,
flags, err) < 0 ||
(strcmp(lock->ref_name, lock->orig_ref_name) &&
- log_ref_write(lock->orig_ref_name, lock->old_oid.hash, sha1,
logmsg, err) < 0)) {
+ log_ref_write(lock->orig_ref_name, lock->old_oid.hash, sha1,
logmsg, flags, err) < 0)) {
char *old_msg = strbuf_detach(err, NULL);
strbuf_addf(err, "Cannot update the ref '%s': '%s'",
lock->ref_name, old_msg);
@@ -3346,7 +3353,7 @@ static int commit_ref_update(struct ref_lock *lock,
!strcmp(head_ref, lock->ref_name)) {
struct strbuf log_err = STRBUF_INIT;
if (log_ref_write("HEAD", lock->old_oid.hash, sha1,
- logmsg, &log_err)) {
+ logmsg, 0, &log_err)) {
error("%s", log_err.buf);
strbuf_release(&log_err);
}
@@ -3420,7 +3427,7 @@ int create_symref(const char *ref_target, const char
*refs_heads_master,
done:
#endif
if (logmsg && !read_ref(refs_heads_master, new_sha1) &&
- log_ref_write(ref_target, old_sha1, new_sha1, logmsg, &err)) {
+ log_ref_write(ref_target, old_sha1, new_sha1, logmsg, 0, &err))
{
error("%s", err.buf);
strbuf_release(&err);
}
@@ -4097,7 +4104,8 @@ int ref_transaction_commit(struct ref_transaction
*transaction,
if (update->flags & REF_NEEDS_COMMIT) {
if (commit_ref_update(update->lock,
- update->new_sha1, update->msg,
err)) {
+ update->new_sha1, update->msg,
+ update->flags, err)) {
/* freed by commit_ref_update(): */
update->lock = NULL;
ret = TRANSACTION_GENERIC_ERROR;
diff --git a/refs.h b/refs.h
index 3b90e16..297ec45 100644
--- a/refs.h
+++ b/refs.h
@@ -224,6 +224,7 @@ int pack_refs(unsigned int flags);
* Other flags are reserved for internal use.
*/
#define REF_NODEREF 0x01
+#define REF_FORCE_CREATE_REFLOG 0x40
/*
* Setup reflog before using. Fill in err and return -1 on failure.
--
2.4.2.586.g889ef79-twtrsrc
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