diff options
Diffstat (limited to 'cache.h')
| -rw-r--r-- | cache.h | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -599,6 +599,7 @@ extern int read_index_unmerged(struct index_state *); /* For use with `write_locked_index()`. */ #define COMMIT_LOCK (1 << 0) +#define SKIP_IF_UNCHANGED (1 << 1) /* * Write the index while holding an already-taken lock. Close the lock, @@ -615,6 +616,9 @@ extern int read_index_unmerged(struct index_state *); * With `COMMIT_LOCK`, the lock is always committed or rolled back. * Without it, the lock is closed, but neither committed nor rolled * back. + * + * If `SKIP_IF_UNCHANGED` is given and the index is unchanged, nothing + * is written (and the lock is rolled back if `COMMIT_LOCK` is given). */ extern int write_locked_index(struct index_state *, struct lock_file *lock, unsigned flags); |