diff options
Diffstat (limited to 'builtin/revert.c')
| -rw-r--r-- | builtin/revert.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/builtin/revert.c b/builtin/revert.c index 4b47ace36b..bb6e9e83b7 100644 --- a/builtin/revert.c +++ b/builtin/revert.c @@ -442,7 +442,7 @@ static int do_pick_commit(void) else parent = commit->parents->item; - if (allow_ff && !hashcmp(parent->object.sha1, head)) + if (allow_ff && parent && !hashcmp(parent->object.sha1, head)) return fast_forward_to(commit->object.sha1, head); if (parent && parse_commit(parent) < 0) @@ -547,6 +547,21 @@ static void prepare_revs(struct rev_info *revs) die("empty commit set passed"); } +static void read_and_refresh_cache(const char *me) +{ + static struct lock_file index_lock; + int index_fd = hold_locked_index(&index_lock, 0); + if (read_index_preload(&the_index, NULL) < 0) + die("git %s: failed to read the index", me); + refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL); + if (the_index.cache_changed) { + if (write_index(&the_index, index_fd) || + commit_locked_index(&index_lock)) + die("git %s: failed to refresh the index", me); + } + rollback_lock_file(&index_lock); +} + static int revert_or_cherry_pick(int argc, const char **argv) { struct rev_info revs; @@ -567,8 +582,7 @@ static int revert_or_cherry_pick(int argc, const char **argv) die("cherry-pick --ff cannot be used with --edit"); } - if (read_cache() < 0) - die("git %s: failed to read the index", me); + read_and_refresh_cache(me); prepare_revs(&revs); |