diff options
Diffstat (limited to 'builtin')
| -rw-r--r-- | builtin/log.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/builtin/log.c b/builtin/log.c index c9ee333932..9033bc7c54 100644 --- a/builtin/log.c +++ b/builtin/log.c @@ -1199,9 +1199,33 @@ static struct commit *get_base_commit(const char *base_commit, struct commit **rev; int i = 0, rev_nr = 0; - base = lookup_commit_reference_by_name(base_commit); - if (!base) - die(_("Unknown commit %s"), base_commit); + if (!strcmp(base_commit, "auto")) { + struct branch *curr_branch = branch_get(NULL); + const char *upstream = branch_get_upstream(curr_branch, NULL); + if (upstream) { + struct commit_list *base_list; + struct commit *commit; + unsigned char sha1[20]; + + if (get_sha1(upstream, sha1)) + die(_("Failed to resolve '%s' as a valid ref."), upstream); + commit = lookup_commit_or_die(sha1, "upstream base"); + base_list = get_merge_bases_many(commit, total, list); + /* There should be one and only one merge base. */ + if (!base_list || base_list->next) + die(_("Could not find exact merge base.")); + base = base_list->item; + free_commit_list(base_list); + } else { + die(_("Failed to get upstream, if you want to record base commit automatically,\n" + "please use git branch --set-upstream-to to track a remote branch.\n" + "Or you could specify base commit by --base=<base-commit-id> manually.")); + } + } else { + base = lookup_commit_reference_by_name(base_commit); + if (!base) + die(_("Unknown commit %s"), base_commit); + } ALLOC_ARRAY(rev, total); for (i = 0; i < total; i++) |