diff options
Diffstat (limited to 'builtin/pull.c')
| -rw-r--r-- | builtin/pull.c | 52 |
1 files changed, 43 insertions, 9 deletions
diff --git a/builtin/pull.c b/builtin/pull.c index cf6c56e2d8..100cbf9fb8 100644 --- a/builtin/pull.c +++ b/builtin/pull.c @@ -31,9 +31,8 @@ /** * Parses the value of --rebase. If value is a false value, returns * REBASE_FALSE. If value is a true value, returns REBASE_TRUE. If value is - * "merges", returns REBASE_MERGES. If value is "preserve", returns - * REBASE_PRESERVE. If value is a invalid value, dies with a fatal error if - * fatal is true, otherwise returns REBASE_INVALID. + * "merges", returns REBASE_MERGES. If value is a invalid value, dies with + * a fatal error if fatal is true, otherwise returns REBASE_INVALID. */ static enum rebase_type parse_config_rebase(const char *key, const char *value, int fatal) @@ -85,6 +84,7 @@ static char *opt_edit; static char *cleanup_arg; static char *opt_ff; static char *opt_verify_signatures; +static char *opt_verify; static int opt_autostash = -1; static int config_autostash; static int check_trust_level = 1; @@ -127,7 +127,7 @@ static struct option pull_options[] = { /* Options passed to git-merge or git-rebase */ OPT_GROUP(N_("Options related to merging")), OPT_CALLBACK_F('r', "rebase", &opt_rebase, - "(false|true|merges|preserve|interactive)", + "(false|true|merges|interactive)", N_("incorporate changes by rebasing rather than merging"), PARSE_OPT_OPTARG, parse_opt_rebase), OPT_PASSTHRU('n', NULL, &opt_diffstat, NULL, @@ -161,6 +161,9 @@ static struct option pull_options[] = { OPT_PASSTHRU(0, "ff-only", &opt_ff, NULL, N_("abort if fast-forward is not possible"), PARSE_OPT_NOARG | PARSE_OPT_NONEG), + OPT_PASSTHRU(0, "verify", &opt_verify, NULL, + N_("control use of pre-merge-commit and commit-msg hooks"), + PARSE_OPT_NOARG), OPT_PASSTHRU(0, "verify-signatures", &opt_verify_signatures, NULL, N_("verify that the named commit has a valid GPG signature"), PARSE_OPT_NOARG), @@ -676,6 +679,8 @@ static int run_merge(void) strvec_pushf(&args, "--cleanup=%s", cleanup_arg); if (opt_ff) strvec_push(&args, opt_ff); + if (opt_verify) + strvec_push(&args, opt_verify); if (opt_verify_signatures) strvec_push(&args, opt_verify_signatures); strvec_pushv(&args, opt_strategies.v); @@ -884,8 +889,6 @@ static int run_rebase(const struct object_id *newbase, /* Options passed to git-rebase */ if (opt_rebase == REBASE_MERGES) strvec_push(&args, "--rebase-merges"); - else if (opt_rebase == REBASE_PRESERVE) - strvec_push(&args, "--preserve-merges"); else if (opt_rebase == REBASE_INTERACTIVE) strvec_push(&args, "--interactive"); if (opt_diffstat) @@ -934,13 +937,40 @@ static int get_can_ff(struct object_id *orig_head, return ret; } +/* + * Is orig_head a descendant of _all_ merge_heads? + * Unfortunately is_descendant_of() cannot be used as it asks + * if orig_head is a descendant of at least one of them. + */ +static int already_up_to_date(struct object_id *orig_head, + struct oid_array *merge_heads) +{ + int i; + struct commit *ours; + + ours = lookup_commit_reference(the_repository, orig_head); + for (i = 0; i < merge_heads->nr; i++) { + struct commit_list *list = NULL; + struct commit *theirs; + int ok; + + theirs = lookup_commit_reference(the_repository, &merge_heads->oid[i]); + commit_list_insert(theirs, &list); + ok = repo_is_descendant_of(the_repository, ours, list); + free_commit_list(list); + if (!ok) + return 0; + } + return 1; +} + static void show_advice_pull_non_ff(void) { 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 false # merge\n" " git config pull.rebase true # rebase\n" " git config pull.ff only # fast-forward only\n" "\n" @@ -958,11 +988,14 @@ int cmd_pull(int argc, const char **argv, const char *prefix) struct object_id rebase_fork_point; int rebase_unspecified = 0; int can_ff; + int divergent; if (!getenv("GIT_REFLOG_ACTION")) set_reflog_message(argc, argv); git_config(git_pull_config, NULL); + prepare_repo_settings(the_repository); + the_repository->settings.command_requires_full_index = 0; argc = parse_options(argc, argv, prefix, pull_options, pull_usage, 0); @@ -1072,15 +1105,16 @@ int cmd_pull(int argc, const char **argv, const char *prefix) } can_ff = get_can_ff(&orig_head, &merge_heads); + divergent = !can_ff && !already_up_to_date(&orig_head, &merge_heads); /* ff-only takes precedence over rebase */ if (opt_ff && !strcmp(opt_ff, "--ff-only")) { - if (!can_ff) + if (divergent) 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) { + if (!opt_ff && rebase_unspecified && divergent) { show_advice_pull_non_ff(); die(_("Need to specify how to reconcile divergent branches.")); } |