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| author | Bence Ferdinandy <bence@ferdinandy.com> | 2024-11-22 13:28:45 +0100 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2024-11-25 03:46:35 +0100 |
| commit | d842cd130122c6f3d3019d467040570d7d001f7a (patch) | |
| tree | 89e96dc4ee82cbcf252d10b23eaddd77c9b9f9cc /refs.h | |
| parent | refs: standardize output of refs_read_symbolic_ref (diff) | |
| download | git-d842cd130122c6f3d3019d467040570d7d001f7a.tar.xz git-d842cd130122c6f3d3019d467040570d7d001f7a.zip | |
refs: atomically record overwritten ref in update_symref
When updating a symref with update_symref it's currently not possible to
know for sure what was the previous value that was overwritten. Extend
refs_update_symref under a new function name, to record the value after
the ref has been locked if the caller of refs_update_symref_extended
requests it via a new variable in the function call. Make the return
value of the function notify the caller, if the previous value was
actually not a symbolic reference. Keep the original refs_update_symref
function with the same signature, but now as a wrapper around
refs_update_symref_extended.
Signed-off-by: Bence Ferdinandy <bence@ferdinandy.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'refs.h')
| -rw-r--r-- | refs.h | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -584,6 +584,10 @@ int refs_copy_existing_ref(struct ref_store *refs, const char *oldref, int refs_update_symref(struct ref_store *refs, const char *refname, const char *target, const char *logmsg); +int refs_update_symref_extended(struct ref_store *refs, const char *refname, + const char *target, const char *logmsg, + struct strbuf *referent); + enum action_on_err { UPDATE_REFS_MSG_ON_ERR, UPDATE_REFS_DIE_ON_ERR, |