diff options
Diffstat (limited to 'builtin/pull.c')
| -rw-r--r-- | builtin/pull.c | 55 |
1 files changed, 44 insertions, 11 deletions
diff --git a/builtin/pull.c b/builtin/pull.c index 3e13f81084..b311ea6b9d 100644 --- a/builtin/pull.c +++ b/builtin/pull.c @@ -893,6 +893,8 @@ static int run_rebase(const struct object_id *newbase, strvec_pushv(&args, opt_strategy_opts.v); if (opt_gpg_sign) strvec_push(&args, opt_gpg_sign); + if (opt_signoff) + strvec_push(&args, opt_signoff); if (opt_autostash == 0) strvec_push(&args, "--no-autostash"); else if (opt_autostash == 1) @@ -911,12 +913,18 @@ static int run_rebase(const struct object_id *newbase, return ret; } -static int get_can_ff(struct object_id *orig_head, struct object_id *orig_merge_head) +static int get_can_ff(struct object_id *orig_head, + struct oid_array *merge_heads) { int ret; struct commit_list *list = NULL; struct commit *merge_head, *head; + struct object_id *orig_merge_head; + if (merge_heads->nr > 1) + return 0; + + orig_merge_head = &merge_heads->oid[0]; head = lookup_commit_reference(the_repository, orig_head); commit_list_insert(head, &list); merge_head = lookup_commit_reference(the_repository, orig_merge_head); @@ -927,9 +935,9 @@ static int get_can_ff(struct object_id *orig_head, struct object_id *orig_merge_ static void show_advice_pull_non_ff(void) { - advise(_("Pulling without specifying how to reconcile divergent branches is\n" - "discouraged. You can squelch this message by running one of the following\n" - "commands sometime before your next pull:\n" + advise(_("You have divergent branches and need to specify how to reconcile them.\n" + "You can do so by running one of the following commands sometime before\n" + "your next pull:\n" "\n" " git config pull.rebase false # merge (the default strategy)\n" " git config pull.rebase true # rebase\n" @@ -966,8 +974,22 @@ int cmd_pull(int argc, const char **argv, const char *prefix) parse_repo_refspecs(argc, argv, &repo, &refspecs); - if (!opt_ff) + if (!opt_ff) { opt_ff = xstrdup_or_null(config_get_ff()); + /* + * A subtle point: opt_ff was set on the line above via + * reading from config. opt_rebase, in contrast, is set + * before this point via command line options. The setting + * of opt_rebase via reading from config (using + * config_get_rebase()) does not happen until later. We + * are relying on the next if-condition happening before + * the config_get_rebase() call so that an explicit + * "--rebase" can override a config setting of + * pull.ff=only. + */ + if (opt_rebase >= 0 && opt_ff && !strcmp(opt_ff, "--ff-only")) + opt_ff = "--ff"; + } if (opt_rebase < 0) opt_rebase = config_get_rebase(&rebase_unspecified); @@ -1041,14 +1063,25 @@ int cmd_pull(int argc, const char **argv, const char *prefix) die(_("Cannot merge multiple branches into empty head.")); return pull_into_void(merge_heads.oid, &curr_head); } - if (opt_rebase && merge_heads.nr > 1) - die(_("Cannot rebase onto multiple branches.")); + if (merge_heads.nr > 1) { + if (opt_rebase) + die(_("Cannot rebase onto multiple branches.")); + if (opt_ff && !strcmp(opt_ff, "--ff-only")) + die(_("Cannot fast-forward to multiple branches.")); + } - can_ff = get_can_ff(&orig_head, &merge_heads.oid[0]); + can_ff = get_can_ff(&orig_head, &merge_heads); - if (rebase_unspecified && !opt_ff && !can_ff) { - if (opt_verbosity >= 0) - show_advice_pull_non_ff(); + /* ff-only takes precedence over rebase */ + if (opt_ff && !strcmp(opt_ff, "--ff-only")) { + if (!can_ff) + die_ff_impossible(); + opt_rebase = REBASE_FALSE; + } + /* If no action specified and we can't fast forward, then warn. */ + if (!opt_ff && rebase_unspecified && !can_ff) { + show_advice_pull_non_ff(); + die(_("Need to specify how to reconcile divergent branches.")); } if (opt_rebase) { |