diff options
Diffstat (limited to 'builtin/pull.c')
| -rw-r--r-- | builtin/pull.c | 373 |
1 files changed, 235 insertions, 138 deletions
diff --git a/builtin/pull.c b/builtin/pull.c index 1b90622b13..3e13f81084 100644 --- a/builtin/pull.c +++ b/builtin/pull.c @@ -5,15 +5,17 @@ * * Fetch one or more remote refs and merge it/them into the current HEAD. */ +#define USE_THE_INDEX_COMPATIBILITY_MACROS #include "cache.h" #include "config.h" #include "builtin.h" #include "parse-options.h" #include "exec-cmd.h" #include "run-command.h" -#include "sha1-array.h" +#include "oid-array.h" #include "remote.h" #include "dir.h" +#include "rebase.h" #include "refs.h" #include "refspec.h" #include "revision.h" @@ -23,15 +25,7 @@ #include "lockfile.h" #include "wt-status.h" #include "commit-reach.h" - -enum rebase_type { - REBASE_INVALID = -1, - REBASE_FALSE = 0, - REBASE_TRUE, - REBASE_PRESERVE, - REBASE_MERGES, - REBASE_INTERACTIVE -}; +#include "sequencer.h" /** * Parses the value of --rebase. If value is a false value, returns @@ -43,18 +37,9 @@ enum rebase_type { static enum rebase_type parse_config_rebase(const char *key, const char *value, int fatal) { - int v = git_parse_maybe_bool(value); - - if (!v) - return REBASE_FALSE; - else if (v > 0) - return REBASE_TRUE; - else if (!strcmp(value, "preserve") || !strcmp(value, "p")) - return REBASE_PRESERVE; - else if (!strcmp(value, "merges") || !strcmp(value, "m")) - return REBASE_MERGES; - else if (!strcmp(value, "interactive") || !strcmp(value, "i")) - return REBASE_INTERACTIVE; + enum rebase_type v = rebase_parse_value(value); + if (v != REBASE_INVALID) + return v; if (fatal) die(_("Invalid value for %s: %s"), key, value); @@ -96,12 +81,14 @@ static char *opt_signoff; static char *opt_squash; static char *opt_commit; static char *opt_edit; +static char *cleanup_arg; static char *opt_ff; static char *opt_verify_signatures; static int opt_autostash = -1; static int config_autostash; -static struct argv_array opt_strategies = ARGV_ARRAY_INIT; -static struct argv_array opt_strategy_opts = ARGV_ARRAY_INIT; +static int check_trust_level = 1; +static struct strvec opt_strategies = STRVEC_INIT; +static struct strvec opt_strategy_opts = STRVEC_INIT; static char *opt_gpg_sign; static int opt_allow_unrelated_histories; @@ -121,6 +108,9 @@ static char *opt_update_shallow; static char *opt_refmap; static char *opt_ipv4; static char *opt_ipv6; +static int opt_show_forced_updates = -1; +static char *set_upstream; +static struct strvec opt_fetch = STRVEC_INIT; static struct option pull_options[] = { /* Shared options */ @@ -128,17 +118,17 @@ static struct option pull_options[] = { OPT_PASSTHRU(0, "progress", &opt_progress, NULL, N_("force progress reporting"), PARSE_OPT_NOARG), - { OPTION_CALLBACK, 0, "recurse-submodules", + OPT_CALLBACK_F(0, "recurse-submodules", &recurse_submodules, N_("on-demand"), N_("control for recursive fetching of submodules"), - PARSE_OPT_OPTARG, option_fetch_parse_recurse_submodules }, + PARSE_OPT_OPTARG, option_fetch_parse_recurse_submodules), /* Options passed to git-merge or git-rebase */ OPT_GROUP(N_("Options related to merging")), - { OPTION_CALLBACK, 'r', "rebase", &opt_rebase, - "(false|true|merges|preserve|interactive)", - N_("incorporate changes by rebasing rather than merging"), - PARSE_OPT_OPTARG, parse_opt_rebase }, + OPT_CALLBACK_F('r', "rebase", &opt_rebase, + "(false|true|merges|preserve|interactive)", + N_("incorporate changes by rebasing rather than merging"), + PARSE_OPT_OPTARG, parse_opt_rebase), OPT_PASSTHRU('n', NULL, &opt_diffstat, NULL, N_("do not show a diffstat at the end of the merge"), PARSE_OPT_NOARG | PARSE_OPT_NONEG), @@ -152,7 +142,7 @@ static struct option pull_options[] = { N_("add (at most <n>) entries from shortlog to merge commit message"), PARSE_OPT_OPTARG), OPT_PASSTHRU(0, "signoff", &opt_signoff, NULL, - N_("add Signed-off-by:"), + N_("add a Signed-off-by trailer"), PARSE_OPT_OPTARG), OPT_PASSTHRU(0, "squash", &opt_squash, NULL, N_("create a single commit instead of doing a merge"), @@ -163,6 +153,7 @@ static struct option pull_options[] = { OPT_PASSTHRU(0, "edit", &opt_edit, NULL, N_("edit message before committing"), PARSE_OPT_NOARG), + OPT_CLEANUP(&cleanup_arg), OPT_PASSTHRU(0, "ff", &opt_ff, NULL, N_("allow fast-forward"), PARSE_OPT_NOARG), @@ -173,7 +164,7 @@ static struct option pull_options[] = { N_("verify that the named commit has a valid GPG signature"), PARSE_OPT_NOARG), OPT_BOOL(0, "autostash", &opt_autostash, - N_("automatically stash/stash pop before and after rebase")), + N_("automatically stash/stash pop before and after")), OPT_PASSTHRU_ARGV('s', "strategy", &opt_strategies, N_("strategy"), N_("merge strategy to use"), 0), @@ -217,6 +208,15 @@ static struct option pull_options[] = { OPT_PASSTHRU(0, "depth", &opt_depth, N_("depth"), N_("deepen history of shallow clone"), 0), + OPT_PASSTHRU_ARGV(0, "shallow-since", &opt_fetch, N_("time"), + N_("deepen history of shallow repository based on time"), + 0), + OPT_PASSTHRU_ARGV(0, "shallow-exclude", &opt_fetch, N_("revision"), + N_("deepen history of shallow clone, excluding rev"), + 0), + OPT_PASSTHRU_ARGV(0, "deepen", &opt_fetch, N_("n"), + N_("deepen history of shallow clone"), + 0), OPT_PASSTHRU(0, "unshallow", &opt_unshallow, NULL, N_("convert to a complete repository"), PARSE_OPT_NONEG | PARSE_OPT_NOARG), @@ -226,12 +226,24 @@ static struct option pull_options[] = { OPT_PASSTHRU(0, "refmap", &opt_refmap, N_("refmap"), N_("specify fetch refmap"), PARSE_OPT_NONEG), + OPT_PASSTHRU_ARGV('o', "server-option", &opt_fetch, + N_("server-specific"), + N_("option to transmit"), + 0), OPT_PASSTHRU('4', "ipv4", &opt_ipv4, NULL, N_("use IPv4 addresses only"), PARSE_OPT_NOARG), OPT_PASSTHRU('6', "ipv6", &opt_ipv6, NULL, N_("use IPv6 addresses only"), PARSE_OPT_NOARG), + OPT_PASSTHRU_ARGV(0, "negotiation-tip", &opt_fetch, N_("revision"), + N_("report that we have only objects reachable from this object"), + 0), + OPT_BOOL(0, "show-forced-updates", &opt_show_forced_updates, + N_("check for forced-updates on all updated branches")), + OPT_PASSTHRU(0, "set-upstream", &set_upstream, NULL, + N_("set upstream for git pull/fetch"), + PARSE_OPT_NOARG), OPT_END() }; @@ -239,25 +251,25 @@ static struct option pull_options[] = { /** * Pushes "-q" or "-v" switches into arr to match the opt_verbosity level. */ -static void argv_push_verbosity(struct argv_array *arr) +static void argv_push_verbosity(struct strvec *arr) { int verbosity; for (verbosity = opt_verbosity; verbosity > 0; verbosity--) - argv_array_push(arr, "-v"); + strvec_push(arr, "-v"); for (verbosity = opt_verbosity; verbosity < 0; verbosity++) - argv_array_push(arr, "-q"); + strvec_push(arr, "-q"); } /** * Pushes "-f" switches into arr to match the opt_force level. */ -static void argv_push_force(struct argv_array *arr) +static void argv_push_force(struct strvec *arr) { int force = opt_force; while (force-- > 0) - argv_array_push(arr, "-f"); + strvec_push(arr, "-f"); } /** @@ -312,7 +324,7 @@ static const char *config_get_ff(void) * looks for the value of "pull.rebase". If both configuration keys do not * exist, returns REBASE_FALSE. */ -static enum rebase_type config_get_rebase(void) +static enum rebase_type config_get_rebase(int *rebase_unspecified) { struct branch *curr_branch = branch_get("HEAD"); const char *value; @@ -332,6 +344,8 @@ static enum rebase_type config_get_rebase(void) if (!git_config_get_value("pull.rebase", &value)) return parse_config_rebase("pull.rebase", value, 1); + *rebase_unspecified = 1; + return REBASE_FALSE; } @@ -340,6 +354,8 @@ static enum rebase_type config_get_rebase(void) */ static int git_pull_config(const char *var, const char *value, void *cb) { + int status; + if (!strcmp(var, "rebase.autostash")) { config_autostash = git_config_bool(var, value); return 0; @@ -347,7 +363,14 @@ static int git_pull_config(const char *var, const char *value, void *cb) recurse_submodules = git_config_bool(var, value) ? RECURSE_SUBMODULES_ON : RECURSE_SUBMODULES_OFF; return 0; + } else if (!strcmp(var, "gpg.mintrustlevel")) { + check_trust_level = 0; } + + status = git_gpg_config(var, value, cb); + if (status) + return status; + return git_default_config(var, value, cb); } @@ -364,9 +387,10 @@ static void get_merge_heads(struct oid_array *merge_heads) fp = xfopen(filename, "r"); while (strbuf_getline_lf(&sb, fp) != EOF) { - if (get_oid_hex(sb.buf, &oid)) - continue; /* invalid line: does not start with SHA1 */ - if (starts_with(sb.buf + GIT_SHA1_HEXSZ, "\tnot-for-merge\t")) + const char *p; + if (parse_oid_hex(sb.buf, &oid, &p)) + continue; /* invalid line: does not start with object ID */ + if (starts_with(p, "\tnot-for-merge\t")) continue; /* ref is not-for-merge */ oid_array_append(merge_heads, &oid); } @@ -486,68 +510,75 @@ static void parse_repo_refspecs(int argc, const char **argv, const char **repo, */ static int run_fetch(const char *repo, const char **refspecs) { - struct argv_array args = ARGV_ARRAY_INIT; + struct strvec args = STRVEC_INIT; int ret; - argv_array_pushl(&args, "fetch", "--update-head-ok", NULL); + strvec_pushl(&args, "fetch", "--update-head-ok", NULL); /* Shared options */ argv_push_verbosity(&args); if (opt_progress) - argv_array_push(&args, opt_progress); + strvec_push(&args, opt_progress); /* Options passed to git-fetch */ if (opt_all) - argv_array_push(&args, opt_all); + strvec_push(&args, opt_all); if (opt_append) - argv_array_push(&args, opt_append); + strvec_push(&args, opt_append); if (opt_upload_pack) - argv_array_push(&args, opt_upload_pack); + strvec_push(&args, opt_upload_pack); argv_push_force(&args); if (opt_tags) - argv_array_push(&args, opt_tags); + strvec_push(&args, opt_tags); if (opt_prune) - argv_array_push(&args, opt_prune); + strvec_push(&args, opt_prune); if (recurse_submodules != RECURSE_SUBMODULES_DEFAULT) switch (recurse_submodules) { case RECURSE_SUBMODULES_ON: - argv_array_push(&args, "--recurse-submodules=on"); + strvec_push(&args, "--recurse-submodules=on"); break; case RECURSE_SUBMODULES_OFF: - argv_array_push(&args, "--recurse-submodules=no"); + strvec_push(&args, "--recurse-submodules=no"); break; case RECURSE_SUBMODULES_ON_DEMAND: - argv_array_push(&args, "--recurse-submodules=on-demand"); + strvec_push(&args, "--recurse-submodules=on-demand"); break; default: BUG("submodule recursion option not understood"); } if (max_children) - argv_array_push(&args, max_children); + strvec_push(&args, max_children); if (opt_dry_run) - argv_array_push(&args, "--dry-run"); + strvec_push(&args, "--dry-run"); if (opt_keep) - argv_array_push(&args, opt_keep); + strvec_push(&args, opt_keep); if (opt_depth) - argv_array_push(&args, opt_depth); + strvec_push(&args, opt_depth); if (opt_unshallow) - argv_array_push(&args, opt_unshallow); + strvec_push(&args, opt_unshallow); if (opt_update_shallow) - argv_array_push(&args, opt_update_shallow); + strvec_push(&args, opt_update_shallow); if (opt_refmap) - argv_array_push(&args, opt_refmap); + strvec_push(&args, opt_refmap); if (opt_ipv4) - argv_array_push(&args, opt_ipv4); + strvec_push(&args, opt_ipv4); if (opt_ipv6) - argv_array_push(&args, opt_ipv6); + strvec_push(&args, opt_ipv6); + if (opt_show_forced_updates > 0) + strvec_push(&args, "--show-forced-updates"); + else if (opt_show_forced_updates == 0) + strvec_push(&args, "--no-show-forced-updates"); + if (set_upstream) + strvec_push(&args, set_upstream); + strvec_pushv(&args, opt_fetch.v); if (repo) { - argv_array_push(&args, repo); - argv_array_pushv(&args, refspecs); + strvec_push(&args, repo); + strvec_pushv(&args, refspecs); } else if (*refspecs) BUG("refspecs without repo?"); - ret = run_command_v_opt(args.argv, RUN_GIT_CMD); - argv_array_clear(&args); + ret = run_command_v_opt(args.v, RUN_GIT_CMD); + strvec_clear(&args); return ret; } @@ -565,7 +596,8 @@ static int pull_into_void(const struct object_id *merge_head, die(_("unable to access commit %s"), oid_to_hex(merge_head)); - verify_merge_signature(commit, opt_verbosity); + verify_merge_signature(commit, opt_verbosity, + check_trust_level); } /* @@ -591,8 +623,8 @@ static int rebase_submodules(void) cp.git_cmd = 1; cp.no_stdin = 1; - argv_array_pushl(&cp.args, "submodule", "update", - "--recursive", "--rebase", NULL); + strvec_pushl(&cp.args, "submodule", "update", + "--recursive", "--rebase", NULL); argv_push_verbosity(&cp.args); return run_command(&cp); @@ -604,8 +636,8 @@ static int update_submodules(void) cp.git_cmd = 1; cp.no_stdin = 1; - argv_array_pushl(&cp.args, "submodule", "update", - "--recursive", "--checkout", NULL); + strvec_pushl(&cp.args, "submodule", "update", + "--recursive", "--checkout", NULL); argv_push_verbosity(&cp.args); return run_command(&cp); @@ -617,42 +649,48 @@ static int update_submodules(void) static int run_merge(void) { int ret; - struct argv_array args = ARGV_ARRAY_INIT; + struct strvec args = STRVEC_INIT; - argv_array_pushl(&args, "merge", NULL); + strvec_pushl(&args, "merge", NULL); /* Shared options */ argv_push_verbosity(&args); if (opt_progress) - argv_array_push(&args, opt_progress); + strvec_push(&args, opt_progress); /* Options passed to git-merge */ if (opt_diffstat) - argv_array_push(&args, opt_diffstat); + strvec_push(&args, opt_diffstat); if (opt_log) - argv_array_push(&args, opt_log); + strvec_push(&args, opt_log); if (opt_signoff) - argv_array_push(&args, opt_signoff); + strvec_push(&args, opt_signoff); if (opt_squash) - argv_array_push(&args, opt_squash); + strvec_push(&args, opt_squash); if (opt_commit) - argv_array_push(&args, opt_commit); + strvec_push(&args, opt_commit); if (opt_edit) - argv_array_push(&args, opt_edit); + strvec_push(&args, opt_edit); + if (cleanup_arg) + strvec_pushf(&args, "--cleanup=%s", cleanup_arg); if (opt_ff) - argv_array_push(&args, opt_ff); + strvec_push(&args, opt_ff); if (opt_verify_signatures) - argv_array_push(&args, opt_verify_signatures); - argv_array_pushv(&args, opt_strategies.argv); - argv_array_pushv(&args, opt_strategy_opts.argv); + strvec_push(&args, opt_verify_signatures); + strvec_pushv(&args, opt_strategies.v); + strvec_pushv(&args, opt_strategy_opts.v); if (opt_gpg_sign) - argv_array_push(&args, opt_gpg_sign); + strvec_push(&args, opt_gpg_sign); + if (opt_autostash == 0) + strvec_push(&args, "--no-autostash"); + else if (opt_autostash == 1) + strvec_push(&args, "--autostash"); if (opt_allow_unrelated_histories > 0) - argv_array_push(&args, "--allow-unrelated-histories"); + strvec_push(&args, "--allow-unrelated-histories"); - argv_array_push(&args, "FETCH_HEAD"); - ret = run_command_v_opt(args.argv, RUN_GIT_CMD); - argv_array_clear(&args); + strvec_push(&args, "FETCH_HEAD"); + ret = run_command_v_opt(args.v, RUN_GIT_CMD); + strvec_clear(&args); return ret; } @@ -749,13 +787,13 @@ static int get_rebase_fork_point(struct object_id *fork_point, const char *repo, if (!remote_branch) return -1; - argv_array_pushl(&cp.args, "merge-base", "--fork-point", - remote_branch, curr_branch->name, NULL); + strvec_pushl(&cp.args, "merge-base", "--fork-point", + remote_branch, curr_branch->name, NULL); cp.no_stdin = 1; cp.no_stderr = 1; cp.git_cmd = 1; - ret = capture_command(&cp, &sb, GIT_SHA1_HEXSZ); + ret = capture_command(&cp, &sb, GIT_MAX_HEXSZ); if (ret) goto cleanup; @@ -800,68 +838,117 @@ static int get_octopus_merge_base(struct object_id *merge_base, } /** - * Given the current HEAD SHA1, the merge head returned from git-fetch and the - * fork point calculated by get_rebase_fork_point(), runs git-rebase with the - * appropriate arguments and returns its exit status. + * Given the current HEAD oid, the merge head returned from git-fetch and the + * fork point calculated by get_rebase_fork_point(), compute the <newbase> and + * <upstream> arguments to use for the upcoming git-rebase invocation. */ -static int run_rebase(const struct object_id *curr_head, +static int get_rebase_newbase_and_upstream(struct object_id *newbase, + struct object_id *upstream, + const struct object_id *curr_head, const struct object_id *merge_head, const struct object_id *fork_point) { - int ret; struct object_id oct_merge_base; - struct argv_array args = ARGV_ARRAY_INIT; if (!get_octopus_merge_base(&oct_merge_base, curr_head, merge_head, fork_point)) if (!is_null_oid(fork_point) && oideq(&oct_merge_base, fork_point)) fork_point = NULL; - argv_array_push(&args, "rebase"); + if (fork_point && !is_null_oid(fork_point)) + oidcpy(upstream, fork_point); + else + oidcpy(upstream, merge_head); + + oidcpy(newbase, merge_head); + + return 0; +} + +/** + * Given the <newbase> and <upstream> calculated by + * get_rebase_newbase_and_upstream(), runs git-rebase with the + * appropriate arguments and returns its exit status. + */ +static int run_rebase(const struct object_id *newbase, + const struct object_id *upstream) +{ + int ret; + struct strvec args = STRVEC_INIT; + + strvec_push(&args, "rebase"); /* Shared options */ argv_push_verbosity(&args); /* Options passed to git-rebase */ if (opt_rebase == REBASE_MERGES) - argv_array_push(&args, "--rebase-merges"); + strvec_push(&args, "--rebase-merges"); else if (opt_rebase == REBASE_PRESERVE) - argv_array_push(&args, "--preserve-merges"); + strvec_push(&args, "--preserve-merges"); else if (opt_rebase == REBASE_INTERACTIVE) - argv_array_push(&args, "--interactive"); + strvec_push(&args, "--interactive"); if (opt_diffstat) - argv_array_push(&args, opt_diffstat); - argv_array_pushv(&args, opt_strategies.argv); - argv_array_pushv(&args, opt_strategy_opts.argv); + strvec_push(&args, opt_diffstat); + strvec_pushv(&args, opt_strategies.v); + strvec_pushv(&args, opt_strategy_opts.v); if (opt_gpg_sign) - argv_array_push(&args, opt_gpg_sign); + strvec_push(&args, opt_gpg_sign); if (opt_autostash == 0) - argv_array_push(&args, "--no-autostash"); + strvec_push(&args, "--no-autostash"); else if (opt_autostash == 1) - argv_array_push(&args, "--autostash"); + strvec_push(&args, "--autostash"); if (opt_verify_signatures && !strcmp(opt_verify_signatures, "--verify-signatures")) warning(_("ignoring --verify-signatures for rebase")); - argv_array_push(&args, "--onto"); - argv_array_push(&args, oid_to_hex(merge_head)); + strvec_push(&args, "--onto"); + strvec_push(&args, oid_to_hex(newbase)); - if (fork_point && !is_null_oid(fork_point)) - argv_array_push(&args, oid_to_hex(fork_point)); - else - argv_array_push(&args, oid_to_hex(merge_head)); + strvec_push(&args, oid_to_hex(upstream)); - ret = run_command_v_opt(args.argv, RUN_GIT_CMD); - argv_array_clear(&args); + ret = run_command_v_opt(args.v, RUN_GIT_CMD); + strvec_clear(&args); return ret; } +static int get_can_ff(struct object_id *orig_head, struct object_id *orig_merge_head) +{ + int ret; + struct commit_list *list = NULL; + struct commit *merge_head, *head; + + head = lookup_commit_reference(the_repository, orig_head); + commit_list_insert(head, &list); + merge_head = lookup_commit_reference(the_repository, orig_merge_head); + ret = repo_is_descendant_of(the_repository, merge_head, list); + free_commit_list(list); + return ret; +} + +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" + "\n" + " git config pull.rebase false # merge (the default strategy)\n" + " git config pull.rebase true # rebase\n" + " git config pull.ff only # fast-forward only\n" + "\n" + "You can replace \"git config\" with \"git config --global\" to set a default\n" + "preference for all repositories. You can also pass --rebase, --no-rebase,\n" + "or --ff-only on the command line to override the configured default per\n" + "invocation.\n")); +} + int cmd_pull(int argc, const char **argv, const char *prefix) { const char *repo, **refspecs; struct oid_array merge_heads = OID_ARRAY_INIT; struct object_id orig_head, curr_head; struct object_id rebase_fork_point; - int autostash; + int rebase_unspecified = 0; + int can_ff; if (!getenv("GIT_REFLOG_ACTION")) set_reflog_message(argc, argv); @@ -870,13 +957,20 @@ int cmd_pull(int argc, const char **argv, const char *prefix) argc = parse_options(argc, argv, prefix, pull_options, pull_usage, 0); + if (cleanup_arg) + /* + * this only checks the validity of cleanup_arg; we don't need + * a valid value for use_editor + */ + get_cleanup_mode(cleanup_arg, 0); + parse_repo_refspecs(argc, argv, &repo, &refspecs); if (!opt_ff) opt_ff = xstrdup_or_null(config_get_ff()); if (opt_rebase < 0) - opt_rebase = config_get_rebase(); + opt_rebase = config_get_rebase(&rebase_unspecified); if (read_cache_unmerged()) die_resolve_conflict("pull"); @@ -887,11 +981,8 @@ int cmd_pull(int argc, const char **argv, const char *prefix) if (get_oid("HEAD", &orig_head)) oidclr(&orig_head); - if (!opt_rebase && opt_autostash != -1) - die(_("--[no-]autostash option is only valid with --rebase.")); - - autostash = config_autostash; if (opt_rebase) { + int autostash = config_autostash; if (opt_autostash != -1) autostash = opt_autostash; @@ -899,7 +990,8 @@ int cmd_pull(int argc, const char **argv, const char *prefix) die(_("Updating an unborn branch with changes added to the index.")); if (!autostash) - require_clean_work_tree(N_("pull with rebase"), + require_clean_work_tree(the_repository, + N_("pull with rebase"), _("please commit or stash them."), 1, 0); if (get_rebase_fork_point(&rebase_fork_point, repo, *refspecs)) @@ -952,28 +1044,33 @@ int cmd_pull(int argc, const char **argv, const char *prefix) if (opt_rebase && merge_heads.nr > 1) die(_("Cannot rebase onto multiple branches.")); + can_ff = get_can_ff(&orig_head, &merge_heads.oid[0]); + + if (rebase_unspecified && !opt_ff && !can_ff) { + if (opt_verbosity >= 0) + show_advice_pull_non_ff(); + } + if (opt_rebase) { int ret = 0; + + struct object_id newbase; + struct object_id upstream; + get_rebase_newbase_and_upstream(&newbase, &upstream, &curr_head, + merge_heads.oid, &rebase_fork_point); + if ((recurse_submodules == RECURSE_SUBMODULES_ON || recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND) && - submodule_touches_in_range(the_repository, &rebase_fork_point, &curr_head)) + submodule_touches_in_range(the_repository, &upstream, &curr_head)) die(_("cannot rebase with locally recorded submodule modifications")); - if (!autostash) { - struct commit_list *list = NULL; - struct commit *merge_head, *head; - - head = lookup_commit_reference(the_repository, - &orig_head); - commit_list_insert(head, &list); - merge_head = lookup_commit_reference(the_repository, - &merge_heads.oid[0]); - if (is_descendant_of(merge_head, list)) { - /* we can fast-forward this without invoking rebase */ - opt_ff = "--ff-only"; - ret = run_merge(); - } + + if (can_ff) { + /* we can fast-forward this without invoking rebase */ + opt_ff = "--ff-only"; + ret = run_merge(); + } else { + ret = run_rebase(&newbase, &upstream); } - ret = run_rebase(&curr_head, merge_heads.oid, &rebase_fork_point); if (!ret && (recurse_submodules == RECURSE_SUBMODULES_ON || recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND)) |